Aiphone Medical Alarms 83873900 0602 E User Manual

83873900 0602  
HEALTH CARE COMMUNICATION SYSTEM  
for Nursing Homes & Health Care Facilities  
INSTALLATION MANUAL  
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– 1 –  
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This Manual is supplied with the NHX-80X Central Control Unit.  
Prior to installation of NHX system, the contents of this Manual must be thoroughly read and understood.  
The Operation Manual is supplied with the NHX-50M master station.  
PRECAUTIONS ON INSTALLATION & WIRING  
: WARNING  
: Prohibitions to dismantle equipment.  
(Negligence could result in death or serious  
injury)  
: PRECAUTIONS  
: Prohibitions to subject the equipment to  
water.  
(Negligence could result in injury or damage  
to property)  
: Take the unit to earth ground.  
: GENERAL PRECAUTIONS.  
WARNING  
1. Do not connect a power supply other than Aiphone Model PS-24E or PS-2420 to terminals +,  
– on NHX-80X. Doing so can cause fire or damage to the unit.  
2. Do not change or modify NHX equipment.  
3. The NHX equipment must not be exposed to water or any other liquid.  
4. Do not open NHX-80X without first unplugging power supply(ies) to prevent electric shock.  
5. Make sure wires are connected properly before plugging in the power supply(ies).  
6. Keep AC cord free from being pulled or crushed.  
7. Do not plug or unplug with wet hands.  
8. Keep AC outlet away from moisture and dust.  
PRECAUTIONS  
1. Mount the NHX-80X unit on wall in a convenient location, but not where it could be bumped or  
jarred.  
2. Do not install NHX components in any of the following locations, as it may cause the system  
to malfunction;  
– High or extreme cold temperature area: under direct sunlight, near equipment that varies  
in temperature, in front of air-conditioner, inside a refrigerated area, etc.  
– Places subject to moisture or humidity extremes.  
– Places subject to environmental conditions, such as oil, dust, chemicals, salt, etc.  
– Places subject to constant vibration or impact.  
3. Take to earth ground every bed of metal pipe construction to protect Bedside sub stations and  
hand-held call buttons from ESD(Electrostatic discharge).  
GENERAL PRECAUTIONS  
1. NHX system is not operable during a power failure.  
2. In areas where broadcasting station antennas are close by, NHX intercom system may be  
affected by radio frequency interference.  
3. Keep all DC wiring at least 30cm, 20” away from AC100~240V wiring, fluorescent lighting, or  
dimmer switches. Cross AC wiring at a 90° angle.  
4. Do not connect any devices other than the Aiphone Models covered in this Manual.  
Markings  
In accordance with CSA C22.2 No.125-M1984, the 4th Edition Standard, For Electromedical  
Equipment the following NHX Series units are provided with the "Risque class1 Part" (and in French-  
"Risque La Pièce class1") marking.  
Model NH-1SA, and -2SA, -1SA/A, -2SA/A Patient Stations;  
Model NHR-7A, Bath Pull-Cord Stations;  
Model NHR-8A, Call Cord  
– 3 –  
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1
SYSTEM OUTLINE & COMPONENTS  
The NHX is a Health Care Communication System, exclusively designed for patient to staff  
communications in health care facilities. The NHX system is UL Listed under UL1069 the Standard for  
Hospital Signalling & Nurse Call Equipment. At Nurses Center, the NHX-50M master station is an  
extremely compact, low profile console. Add-on 30-call selector can be plugged into NHX-50M. In each  
room, single or dual-call Nurse Call bedside sub stations are used with corridor light and bathroom call  
switch. The NHR-3TS is a common area or hallway sub station, which can be used with a NHR-7A  
pullcord urgent call switch.  
Package Contents  
Central Control Unit (NHX-80X)  
• Packet of screws  
• Installation Manual  
• Replacement 3A Fuse (2)  
(attached inside back case)  
SYSTEM OUTLINE  
1. Up to 8 Sub trunk lines (10 rooms each).  
Failure on one line does not affect the other trunk lines.  
• Optional conduit wiring through junction boxes.  
• Max. 10 sub stations in parallel per block.  
• Programming # on each sub.  
• Sub station may have urgent bathroom call button (ea. 3 wires).  
• Corridor light mounted on 1-gang box (3 wires).  
• Gang box may be used for junction of 3P Trunk cable.  
2. NHX-80X Central Control Unit.  
50 or 80-call station capacity.  
• CCU wall-mounts on 3-gang box or inside electrical enclosure (both UL Listed).  
• Install NHR-30K, 30-call add-on Trunk Card in the NHX-80X.  
3. Compact 50-call Master Station.  
• 30-call add-on selector plugs in and connects with bracket.  
• Max. 4 Zone lights, ceiling or wall mount. With any type of call, light comes on to indicate the calling  
zone. One separate PS-24E or PS-2420 required for 2 Zone lights.  
• Duty station (NHR-SP) annunciates call tone, with TONE OFF button.  
4. NHR-3TS Bathroom call sub station places an urgent call.  
• NHR-3TS contains sub station circuitry.  
• May be used in two ways: one as common area bathroom call sub station(2 red lights) used with  
NHR-7A bathroom pullcord, the other as hallway staff call sub station (one white lamp used) used  
with the same NHR-7A call switch.  
5. Bedside sub station NH-1SA/A and NH-2SA/A for multiple installation within a patient room.  
• Max. 6 bedside sub stations within a patient room.  
• Single and common bathroom call switch.  
• Single or two corridor light installation.  
– 4 –  
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1. SYSTEM OUTLINE & COMPONENTS  
Sub Trunk line 1  
NHR-7A  
Sub station  
NHR-3TS  
Common area  
Restrooms  
3
Bathroom pullcord  
10  
9
6(3P)  
Junction box  
NHR-7A  
(*)4P with  
NHR-3A-4  
3
NHR-3TS  
NHR-4A  
NHR-7A  
Staff call  
area  
6(3P)  
3
(*)4P with  
NHR-3A-4  
NHR-7A  
(common)  
Bedside sub  
area (multiple  
stations)  
3
3
5
6
7
8
To the farthest sub,  
max.165' (50m) with  
min. 22AWG wire.  
Sub trunk line must not  
exceed 330' (100m) in  
total with 22AWG wire.  
6(3P)  
(*)4P with  
NHR-3A-4  
NH-1SA/A  
(4 units)  
NHR-8A  
NHR-4A  
Bedside sub  
area (single  
station)  
3
3
NHR-7A  
2
6(3P)  
(*)4P with  
NHR-3A-4  
NH-1SA/A  
NH-1SA  
NHR-8A  
65' (20m)  
65' (20m)  
w/22AWG min.  
w/22AWG min.  
NHR-4A  
NHR-7A  
3
3
1
6(3P)  
(*)4P with  
NHR-3A-4  
Sub Trunk lines 2 ~ 8  
NH-2SA/A  
NH-2SA  
NHR-8A  
6(3P)  
165' (50m) w/18AWG  
Zone lights  
NHR-3A-4  
(up to 4)  
5
5
5
5
PS24  
PS24  
PS24  
PS24  
65' (20m) w/ 22AWG  
Duty station  
NHR-SP  
5
NHX-80X  
CCU  
16' (5m)  
w/18AWG  
65' (20m)  
w/22AWG min.  
Master & Add-on  
NHX-50M &  
NHX-30G  
10(5P)  
PS24  
Do not connect two power supplies in parallel.  
(*) Each zone requires a separate common wire  
from the NHX-80X.  
PS-24E or PS-2420  
– 5 –  
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1.SYSTEM OUTLINE & COMPONENTS  
COMPONENTS AVAILABLE  
• Central Control Unit  
• Urgent bathroom call sub station • Bedside sub stations  
(common area)  
NH-1SA/A  
NH-1SA   
NH-2SA/A  
NH-2SA  
NHR-3TS  
NHX-80X  
(for optional conduit connection)  
• Master station & Add-on selector  
• Duty station  
NHR-SP  
NHX-50M  
NHX-30G  
Central Control Unit  
Master station  
NHX-80X: Central Control Unit(CCU) w/50 or 80 station capacity.  
NHX-50M: 50-call master console.  
NHX-30G: 30-call add-on selector, plug-in connector.  
NHR-SP: Duty station. Call tone receiver.  
NH-1SA/A, NH-1SA: Single-call sub station.  
NH-2SA/A, NH-2SA: Dual-call sub station.  
NHR-3TS: Common area call station, used w/NHR-7A Bathroom pullcord.  
NHR-3TS: Urgent staff call sub station, used w/NHR-7A mechanical lock switch  
in the hallway.  
Duty station  
Bedside sub stations  
Corridor lamp (sub)  
Power supply  
PS-24E or PS-2420: AC 120V. DC24V, 2A. 2 required for NHX-80X only.  
One separate PS-24E or PS-2420 required for two Zone lights.  
30-call add-on trunk card NHR-30K: XC-461 Card complete with mounting accessories for system  
expansion to 80 stations.  
– 6 –  
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1. SYSTEM OUTLINE & COMPONENTS  
Accessories: Aiphone Models & UL Listed locally available  
1
2
3
4
NHR-3A-4  
NHR-4A  
NHR-7A  
NHR-8A  
NHR-7A w/Pullcord  
NHR-DP  
Zone light  
(NHR-3A-4)  
4-zone indicator light. Max. 4 units.  
Up to 2 units powered by a PS-24E or PS-2420 power supply.  
Urgent call switch  
(NHR-7A)  
Provides dry closure contact, with mechanically latching switch.  
Master-RING LED is lit.  
Used with bedside sub station, or NHR-3TS corridor lamp in common area for  
urgent bathroom call, or in the hallway for urgent staff call. Urgent call switch  
cannot be used alone.  
Contact Ratings; DC 24V, 10mA to max. 20mA (min. 5mA or more).  
Hand-held call cord  
(NHR-8A)  
Provides dry closure contact with 1/4" phone plug.  
Corridor lamp  
(NHR-4A)  
Connected to each. Bedside sub station.  
Two lamps (red & white).  
Ratings; 24V, 100mA.  
Dummy plug  
(NHR-DP)  
Plugs into jack unused on bedside sub stations.  
– 7 –  
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2
NAMES & FEATURES  
NHX-50M  
2
3
4
5
Desk use only  
1
12  
13  
11  
6
7
8
9 10  
94  
280  
(11")  
(3-3 ")  
/
4
NHX-50M  
11. Handset  
12. Speaker  
13. Directory  
14. Sub call-in LED  
15. Sub selector button  
16. Power on LED  
17. Mic.  
18. OFF button  
19. TALK button  
10. TONE-OFF button  
11. Attendance LED  
12. RECEIVE VOL.  
13. TONE VOL. See OPERATIONS section.  
– 8 –  
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2. NAMES & FEATURES  
NHX-30G  
58.5  
NHX-30G  
(2-5 ")  
/
90  
(3-9 ")  
16  
1. Directory  
45.5  
12  
2. Sub call-in LED  
3. Sub selector button  
/
16  
(11-2 ")  
(1 ")  
/
/
2
16  
(1 ")  
1
/
32  
1
2
3
NH-1SA/A  
2-gang mounting  
1. Speaker/mic.  
2. CANCEL button (for routine call only)  
3. TALK mode LED  
4. Master-RING LED (CALL)  
5. Jack (1) for CALL button  
46  
(1-13 ")  
/
116  
/
16  
16  
(7 ")  
11  
(4-9 ")  
/
16  
35  
(1-3 ")  
/
8
CANCEL button: Cancels a routine call only,  
while the bathroom and cord-out trouble call  
can be cancelled at the site.  
2
3
4
1
5
NH-2SA/A  
2-gang mounting  
1. Speaker/mic.  
2. CANCEL button (for Routine call only)  
3. TALK mode LED  
4. Master-RING LED (CALL)  
5. Jacks(2) for CALL button  
46  
(1-13 ")  
/
116  
/
16  
16  
(7 ")  
11  
(4-9 ")  
/
16  
35  
(1-3 ")  
/
8
2
3
4
1
5
– 9 –  
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2. NAMES & FEATURES  
NHX-80X  
3-gang mounting  
1. Power on LED, green  
2. Front cover screw (2)  
3. Power switch  
1
2
3
340  
98  
/
8
(13-3 ")  
(3-7 ")  
/
8
PS-24E  
PS-2420  
52  
/
16  
90  
/
16  
(2-1 ")  
(3-9 ")  
Single-gang bracket mounting  
52  
/
16  
90  
/
16  
(2-1 ")  
(3-9 ")  
4
4
1
2
3
1
2
3
1. 24V DC output terminals  
2. Terminal for grounding  
3. 120V AC input power cord & plug of  
approx. 6’3”(1.9m) long  
4. Cover of Terminal section  
– 10 –  
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2. NAMES & FEATURES  
NHR-3TS  
NHR-4A  
Single-gang mounting  
1
2-gang mounting  
1
38  
116  
28  
45  
(1-1 ")  
70(2-3 ")  
(4-9 ")  
(1-1 ") (1-3 ")  
/
2
/
16  
/
8
/
4
/
4
48(1- 7 ")  
/
8
1. Lamp cover (2)  
Red lamps inside  
1. Lamp cover  
White & red lamps inside  
NHR-SP  
NHR-7A  
Single-gang mounting  
2-gang mounting  
1
2
3
1
2
7
16  
(
11  
")  
/
35  
(1-3 ")  
/
8
116  
/
16  
46  
/
16  
10(5 ")  
(4-9 ")  
(1-13 ")  
/
16  
71(2-13 ")  
/
16  
1. Speaker  
1. Master-RING LED  
2. Pull-lock switch  
2. TONE-OFF button  
3. Master-RING LED (CALL)  
Tie up the pullcord supplied  
NHR-3A-4  
NHR-8A  
5-gang mounting  
1
230 (9-1 ")  
/
16  
1
3
2
438 (17- 1 ")  
69(2-3 ")  
Approx. 2.1m(6'11")  
/
/
4
4
1. Lamp cover (4) Red lamps inside  
2. 5-gang mounting holes  
1. Plug  
2. Clip  
3. Call button  
– 11 –  
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2. NAMES & FEATURES  
System Features  
1. Listed UL1069 Patient to Staff Communication System for up to 80 stations.  
2. Voice-actuated handset or press-to-talk communication.  
Single and private channel (cannot be broken into).  
3. Up to 8 trunk lines for subs. Max. 10 sub stations per trunk line.  
3 twisted pair looped wiring, plus one separate wire for zone light indicator.  
4. Compact sized 50-call master station.  
30-call add-on selector simply plugs into master. (Expansion card required for CCU)  
5. Single or dual-call Nurse Call bedside sub stations, able to have multiple stations in one room with  
common bathroom pullcord and corridor lamp.  
6. NHR-3TS Bathroom/Hallway urgent call sub station used with NHR-7A pullcord or switch.  
7. Listed UL 1069 components: Corridor lamps, Bathroom pullcords,  
urgent call switches, and Zone lights.  
8. Three types of calls with distinct tone and light signalling.  
1) Routine Call  
2) Urgent Call- from bathroom common area bath or urgent call station  
3) Cord-out trouble call from bedside.  
Calls are answered in order of urgency and time of call.  
9. Call tone & LED annunciation at Duty station.  
10. Station number programming on each Sub station.  
11. Sub stations connection verification at NHX-50M Master station.  
12. Line-off trouble sounds intermittent buzzer with LED illumination.  
13. Plug in wire terminations at Master and Sub stations. Makes replacement easy.  
System capabilities  
1. A call from dual-call bedside sub (NH-2SA/A) lights the same call-in LED on the NHX-50M or NHX-30G.  
2. NHX-50M master holds max. five call-in LED’s simultaneously.  
3. The following features are not included in the NHX system;  
• Second master in parallel (for routing calls). • Ceiling mount sub  
• Desk or hand-held sub. • Call extension speaker  
• Communication with 2 or more subs at a time. • Background music  
• All call  
– 12 –  
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3
INSTALLATION & WIRING  
Mounting location  
NHX equipment is designed for indoor use only. NHX-80X must be wall-mounted on a UL Listed 3-gang  
box or in a Listed electrical enclosure. The enclosure should be provided with a solid noncombustible  
mounting plate board for securing the NHX-80X chassis. ( Ref. NHX-80X dimensions: 460H x 340W x  
98D. 18-1/8"H x 13-3/8"W x 3-7/8"D). Locate the NHX-50M master within close proximity of the NHX-80X  
CCU. (Max. 20m, 65' wiring distance)  
Wiring  
1. Use Aiphone specified shielded cable. Otherwise, run wires in metal conduit to prevent any  
malfunction or noise interference.  
2. CAUTION: – Risk of Electric Shock  
When installing, route field wiring away from sharp projections, corners, and internal components.  
Cable  
For wiring between NHX-80X, NHX-50M, and sub stations, use UL Listed twisted pair cable, only copper  
conductors, 22AWG min. or heavier, rated 300V. Cable to call buttons and lamps can be either parallel or  
twisted pair cable, 22AWG or heavier, UL Listed.  
Power supply  
For NHX-80X CCU, use the power supply exclusively designed, as listed below;  
• PS-24E or PS-2420: Rated input 120V AC, 50/60Hz. Rated output: DC 24V, 2A (Requires two units per  
system).  
For Zone light Model NHR-3A-4 (max. 4 per system), install a PS-24E or PS-2420 power supply for every  
2 Zone lights.  
Power off system resetting  
When NHX system malfunctions, turn NHX-80X power switch off and on again, and entire system will be  
reinitialized. The reset switch on NHX-80X is used when initializing NHX-80X for sub stations. The reset  
switch on NHX-50M is used when checking connection of sub stations.  
Zone light installation  
Zone light will indicate which zone has a call placed at one to max. 4 locations in the facility.  
• Permitted distance: 165’ with 18AWG (50m with 1.0mmø) from the NHX-80X.  
Zone # 1  
Zone # 3  
Bedside sub stations  
Zone light 1  
Zone  
light 3  
Commom area  
Commom area  
Nurse Center  
Zone  
light 4  
NHR-3TS urgent  
staff call sub station  
& NHR-7A switch  
Zone light 2  
NHR-3TS urgent bathroom call sub  
Bedside sub stations  
Zone # 2  
Zone # 4  
– 13 –  
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3. INSTALLATION & WIRING  
Setting Station #1 ~ 10 on Sub stations  
Before installing sub stations:  
1. Make a SUB STATION # CHART (Fig. 2), assigning sub station numbers to each room where sub will  
be installed.  
2. Move 4 dip switches (1 ~ 4) on the back of the sub station according to the # chart.  
• NHX-50M 
master station  
As shown in Fig. 1, the vertical rows of Call buttons are  
assigned sub station #1 ~ 10 (from top) of Trunks 1 - 5  
from the left on NHX-50M.  
Blocks  
FIG.1  
1
2
3
4
5
6
7
8
NHX-30G controls Trunks 6 ~ 8.  
Station Nos.  
1 from top  
2
3
4
5
6
7
8
Powered from  
NHX-80X  
9
10  
Master station  
NHX-50M  
Add-on selector  
NHX-30G  
• Sub stations  
Sub # Set switches: Initially all in OFF position. Move to upper ON position, according to the Chart.  
Seting Sub station #  
1 2 4 8  
1 2 4 8  
DIP switches  
Example:
#7 : 1 + 2 + 4 = 7  
1
2
3
4
5
6
7
* Do not assign the same number for  
more than one sub within a trunk.  
Otherwise, system will malfunction.  
SW1  
8
9
10  
Powered from  
NHX-80X  
NH-1SA,NH-2SA,  
NHR-3TS  
The dip switches marked 1, 2, 3, 4 should read 1, 2, 4, 8  
Back view  
Example: Sub station # Chart  
FIG. 2  
Bathroom  
Pullcord  
Corridor lamp  
Urgent  
Call Sw.  
Type of Subs  
Sub's Block  
& Number  
Zone #  
Assigned  
Block #  
1
Subs #  
Bedside  
Toilet  
Yes or No  
Yes or No  
Yes or No  
BLOCK 1-1  
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
10  
10  
1
2
(Staff call)  
(NHR-3TS own)  
BLOCK 1-1  
2
2
8
2
4
BLOCK 8-1  
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10  
10  
(NHR-3TS own)  
Zone # 1 ~ 4: Assigned by wire terminations of Sub‘s ZL terminal.  
Corresponding terminals are Z1 – Z4 on NHX-80X).  
– 14 –  
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3. INSTALLATION & WIRING  
Inside the cover, are located dip switches SW2-1~4,  
RESET switch and four LED's.  
SW2  
SW1  
RESET  
1 2 3 4  
Switch cover  
TEST  
SET  
NORMAL OFF  
CHECK  
Power on  
indicator  
LED13  
DT  
LED1 LED11 LED12  
WD  
MD  
MA  
Power on switch  
NHX-80X  
Blinking fast  
Not lit  
Blinking slowly  
Not lit  
Front View  
In standby, the status of the LED's  
are as above.  
Initializing NHX-80X for Sub stations  
The NHX-80X CCU must be set to zero after all the sub station numbers are programmed.  
Proceed as follows;  
1. Remove the switch cover on front cover. Place the dip switch SW2-2(SET)  
to upper ON position. The rest dip switches must remain in OFF  
position.  
2. Make sure sub stations are all in standby.  
If a sub is not in standby mode, it cannot be acknowledged properly.  
3. Turn power switch on NHX-80X ON.  
4. Press RESET switch. LED 1 blinks green.  
5. LED13 blinks green for 5 seconds, and goes out.  
6. Place the dip switch SW2-2(SET) back to OFF position.  
7. Press RESET switch again. Programming for subs is complete.  
All the switches must be in OFF position. LED13 starts blinking.  
See the status of four LED’s as above.  
Checking Status of Sub stations on NHX-50M (Testing)  
Test the NHX-50M to visually check status of all sub stations:  
• On the bottom of the NHX-50M, press RESET button while holding down OFF button on front panel.  
The NHX-50M enters testing mode. Check the sub stations throughout system as follows:  
From sub 1 of the first row, the LED is lit and goes out if the sub is connected.  
Then, the LED of sub 2 is lit and goes out. All subs are scanned in this way to check sub’s status. If a  
sub is not connected, the LED is lit and remains on.  
• If a sub is connected but the LED won’t go out, check status of the sub station as follows:  
(1) Incorrect programming  
(2) Not placed in standby with bathroom call  
(3) Incorrect wire terminations  
• On the subs(s), which have been found yet not programmed in testing mode, check number  
programming. Repeat process from Step 4 of the above section.  
To get out of testing mode, press OFF button on NHX-50M.  
– 15 –  
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3. INSTALLATION & WIRING  
Terminal block layout  
• NHX-80X  
1
4
3
2
5
1. Subs trunk lines  
11 ~ 16: for Block 1  
21 ~ 26: for Block 2  
31 ~ 36: for Block 3  
41 ~ 46: for Block 4  
51 ~ 56: for Block 5  
61 ~ 66: for Block 6  
71 ~ 76: for Block 7  
81 ~ 86: for Block 8  
3. Zone light connection  
(to sub’s ZL terminal)  
Z1: to Subs of zone 1  
Z2: to Subs of zone 2  
Z3: to Subs of zone 3  
Z4: to Subs of zone 4  
* A sub cannot have more than one zone  
indication. (to Zone light)  
R1: to zone light, lamp 1 control  
R2: to zone light, lamp 2 control  
R3: to zone light, lamp 3 control  
R4: to zone light, lamp 4 control  
1, 2: Voice  
3: + 24V  
4: GND  
5: DATA +  
6: DATA –  
RC: Common  
2. NHX-50M master  
4. Power supply  
M1: +24V  
A+: DC 24V, 2A input  
M2: GND  
A–:  
M3: DATA 1  
B+: DC24V, 2A input  
B–:  
M4: DATA 2  
M5: Voice  
M6: Voice  
DO NOT cross wires.  
M7: Duty station connection  
M8: Duty station call tone.  
M9: Duty station call control  
M10: Duty station LED control  
5. Duty station NHR-SP connection  
S1: Power  
S2: GND  
S3: Call control  
S4: LED control  
S5: Call tone  
S6: Call tone  
– 16 –  
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3. INSTALLATION & WIRING  
Terminal block layout  
• NHX-50M  
Preset volume controls  
TONE  
PRE-TONE  
TRANSMIT  
DUTY STATION  
RECEIVE  
Plug NHX-30G  
into 2 sockets.  
Test switch  
Reset switch  
NHX-50M  
Chassis  
Bottom view  
Plug-in socket(10-pin) CN1 :Supplied connector plugs in  
for wiring to NHX-80X.  
10 connector lead wires : connect to NHX-80X with 10 (5P) cable using wire nuts.  
• NH-1SA/A  
NH-1SA  
NH-2SA/A  
NH-2SA  
NHR-3TS  
Plug in the supplied  
Plug-in socket  
Sub station # set  
(6-pin) CN1  
connector for wiring to  
dip switches  
SW1  
Sub Trunk line.  
Plug-in socket  
(8-pin) CN2(*)  
Plug in the supplied  
connector for wiring to  
bathroom pullcord,  
corridor lamp & zone  
light #.  
(*)7-pin on NH-1SA,  
NH-2SA and NHR-3TS  
NH-1SA/A, NH-1SA,  
NH-2SA/A,NH-2SA,  
NHR-3TS Back view  
1 ~ 6: Connect 3P cable to Subs Trunk line. Ten stations  
per trunk, connected to NHX-80X 11 - 16 (up to  
81 - 86) terminals.  
ZL: Zone light to a Zone No. terminal (Z1 ~ Z4)  
• NHR-SP  
Plug in the supplied  
connector for wiring  
to NHX-80X.  
Plug-in socket  
(6-pin) CN1  
CAUTION:  
NHR-SP  
Back view  
When NHR-SP Duty  
Station is installed,  
remove the Shorting  
Connector (CN104) on  
NHX-80X CCU.  
– 17 –  
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WIRING DIAGRAMS  
1. NHX-80X CCU to NHX-50M, NHX-30G & Duty station  
NHX-80X  
6
10(5P)  
Duty station  
Master  
Add-on  
NHX-50M  
NHX-30G  
NHR-SP  
NHX-80X  
NHX-50M  
NHX-30G  
Each polarized pairs  
M1  
M2  
M3  
M4  
M5  
M6  
M7  
M8  
M9  
M10  
M1  
M2  
M3  
M4  
M5  
M6  
M7  
M8  
M9  
M6  
Connectors (2)  
CN104  
Removed  
Duty station  
NHR-SP  
6(parallel)  
S1  
S2  
S3  
S4  
S5  
S6  
S1  
S2  
S3  
S4  
S5  
S6  
Wiring on NHX-80X CCU  
* Use UL Listed cable for all wiring.  
To: NHX-50M  
5P  
To: NHR-SP  
Cable  
6 parallel conductors  
Distance  
65' w/22AWG  
(20m w/0.65mmø)  
65' w/22AWG  
(20m w/0.65mmø)  
*
When Duty station (NHR-SP) is installed, remove the shorting  
connector from CN104 socket . Line-off trouble will be activated at the  
NHX-50M when wires to NHR-SP are broken.  
* The Shorting connector is kept in the CCU, attached to internal wires.  
It is necessary only when wires to NHR-SP are broken.  
To silence the tone, plug in the shorting connector until NHR-SP is  
restored to normal operation.  
– 18 –  
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WIRING DIAGRAMS  
2. Zone lights  
* Take G terminal to earth ground on each  
PS-24E or PS-2420 power supply.  
Zone light NHR-3A-4  
NHX-80X  
4
1
2
3
1
1
2
2
1
1
3
3
2
2
3
4
4
4
3
4
5
5
5
5
2
2
PS24  
PS24  
NHX-80X  
Zone light NHR-3A-4  
1
1
1
2
1
2
2
2
3
3
3
4
3
4
4
4
1
2
3
4
R1  
R2  
Orange  
Yellow  
Red  
Orange  
Yellow  
Red  
Orange  
Yellow  
Red  
Orange  
Yellow  
Red  
(Zone 1)  
(Zone 2)  
(+)  
R3  
R4  
RC  
Green  
Blue  
Green  
Blue  
Green  
Blue  
Green  
Blue  
(Zone 3)  
(Zone 4)  
(+)  
Red  
Red  
Red  
Red  
Zone light  
relay makes  
contact  
+
+
G
G
Do not connect two power  
supplies in parallel.  
Power supply  
PS-24E or  
PS-2420  
Power supply  
PS-24E or  
PS-2420  
Wiring on NHX-80X CCU  
* Use UL Listed cable for all wiring.  
To: Zone light  
Cable  
5 parallel conductors  
Distance  
165' w/18AWG  
(50m w/1.0mmø)  
* The NHX-80X zone light connection terminals (R1~R4, RC) are rated: DC 24V, 4A
.  
*
Power supply for Zone light(s);  
Use a power supply rated 24V DC, 2A. A second PS-24E or PS-2420 power supply  
is required for Zone lights 3 & 4.  
Lamp; Rated DC 24V ~, 100mA (each lamp).  
Total 400mA per NHR-3A-4.  
Schematic diagram of Zone light NHR-3A-4  
Orange  
Yellow  
Red  
Green  
Blue  
Red  
– 19 –  
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WIRING DIAGRAMS  
3. NHX-80X CCU to Sub stations  
Sub stations NH-1SA/A, NH-1SA,  
NH-2SA/A, NH-2SA or NHR-3TS  
NHX-80X  
1
2
3
9
10  
6(3P)  
Trunk 1  
Trunk 2  
Trunk 3  
PS24  
PS24  
120V AC  
Trunk 8  
:PS-24E or  
PS-2420  
PS24  
Take G terminal to earth ground on 2  
power supplies.  
To Subs block 1  
Bedside Sub or Bathroom sub stations  
See page 16 for  
actual terminal  
block layout  
NH-1SA/A  
NH-1SA  
NH-1SA/A  
NH-1SA  
NH-2SA/A  
NH-2SA or  
NHR-3TS  
NH-1SA/A  
NH-1SA  
NH-2SA/A  
NH-2SA or  
NHR-3TS  
NH-2SA/A  
NH-2SA or  
NHR-3TS  
CCU  
NHX-80X  
Each pair:  
polarized  
CN1  
CN2  
CN1 Brown  
Red  
51  
52  
53  
54  
55  
56  
11  
12  
13  
14  
15  
16  
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
Orange  
Yellow  
Green  
To Subs block 5  
Blue  
CN2 Purple  
Z3 Z1  
ZL  
ZL  
ZL  
To Subs block 2  
CN1  
as above  
61  
62  
63  
64  
65  
66  
21  
22  
23  
24  
25  
26  
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
To Subs block 6  
CN2  
as above  
ZL  
ZL  
ZL  
71  
72  
73  
74  
75  
76  
31  
32  
33  
34  
35  
36  
ZL terminal may be connected  
to Z1 ~ Z4 terminal in NHX-80X,  
depending on zone of patient station.  
To Subs block 7  
To Subs block 8  
To Subs block 3  
To Subs block 4  
Trunk line from NHX-80X to sub stations should be  
Aiphone specified cable or UL Listed cable  
(3 twisted pair).  
81  
82  
83  
84  
85  
86  
41  
42  
43  
44  
45  
46  
• If 4-zone lamp is included, use 4 twisted pairs.  
• In a zone with more than 10 stations, additional  
subs must be wired in a separate trunk line, but  
the ZL line may be extended from any sub on the  
previous trunk line.  
Permitted wiring distance to Sub stations;  
165' with 22AWG, 50m with 0.65mm (from CCU to  
farthest sub).  
Max. 330', 100m total distance per trunkage line  
(includes length of trunk line, plus wire length  
T-tapped from junction point to each patient station  
in the trunk line).  
Z4 Z2  
PS24  
+
A+  
A–  
G
PS24  
+
B+  
B–  
G
Do not connect two power supplies in parallel.  
Power supply: PS-24E or PS-2420, DC24V, 2A  
PS24  
– 20 –  
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WIRING DIAGRAMS  
4. Bedside sub stations w/Corridor lamp & Bathroom Pullcord  
Bedside Sub stations: NH-1SA/A, NH-1SA,  
Bathroom Call  
Staff Call  
NH-2SA/A or NH-2SA  
1
2
9
NHR-3TS  
10  
NHR-3TS  
NHX-80X  
6(3P)  
Trunk 1  
Trunk 8  
NHR-7A  
3
3
3
3
3
PS24  
PS24  
120V AC  
3
3
Men  
NHR-7A  
NHR-4A  
NHR-4A  
Women  
Take G terminal to earth ground on 2  
PS-24E or PS-2420 power supplies.  
NHR-7A  
NHR-7A  
Bedside Sub stations: NH-1SA/A, NH-1SA,  
NH-2SA/A or NH-2SA  
1
2
CCU  
NHX-80X  
Each pair:  
CN1  
polarized  
CN1  
CN2  
Brown  
Red  
Orange  
Yellow  
Green  
Blue  
11  
12  
13  
14  
15  
16  
1
2
3
4
5
6
1
2
3
4
5
6
To Subs  
block 1  
CN2  
Z1  
ZL  
Purple  
Brown  
Brown  
WL  
(any zone)  
Orange  
White  
Red  
Corridor lamp  
NHR-4A  
Red  
Orange  
Red  
RL  
E
Orange  
Master-CALL LED  
Yellow  
Green  
TC  
TL  
Blue  
Bathroom pullcord  
(mechanical lock)  
NHR-7A  
Yellow  
Blue  
Green  
Blue  
E
Purple  
LED  
ZL  
LC terminal is not used (not shown).  
5. Bathroom call sub station: NHR-3TS  
Staff Call (corridor)  
Bathroom call (common area)  
9
10  
NHR-3TS  
As many pullcords needed  
can be connected to NHR-3TS.  
NHR-3TS  
CCU  
NHX-80X  
red  
red  
(*1)white  
Each pair:  
polarized  
Master-CALL  
lamp  
CN1  
CN1  
1
NHR-7A  
11  
12  
13  
14  
15  
16  
1
2
3
4
5
6
2
3
4
5
6
Yellow  
Blue  
Green  
NHR-7A  
LED  
CN2  
CN2  
Brown  
Red  
Yellow  
Blue  
Z1  
TC1  
TL1  
E
Blue  
Brown  
Red  
Orange  
(any zone)  
TC1  
TL1  
E
Green  
Blue  
Urgent call switch  
mechanical lock  
LED  
Orange  
Men  
Yellow  
Green  
Blue  
LED  
TC2  
TL2  
NHR-7A  
Green  
Yellow  
Blue  
Green  
Blue  
Blue  
Yellow  
(*1) On NHR-3TS for staff call, remove  
the red cap on lamp inside.  
Urgent staff call must be white  
blinking light.  
(*2) LC terminal is not used (not shown).  
NHR-7A  
Purple  
ZL  
Yellow  
Blue  
LED  
Blue  
Yellow  
Green  
Blue  
Master-  
CALL  
LED  
TC2  
TL2  
NHR-7A  
Women  
Green  
Blue  
Purple  
ZL  
LED  
– 21 –  
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WIRING DIAGRAMS  
Multi-Station Patient Room Applications  
Multiple NH-1SA/A and NH-2SA/A bedside sub stations can also be installed  
within a patient room. Observe the following conditions;  
• Max. 6 bedside sub stations may be connected per room for max. 12 calls (when NH-2SA/A stations are used).  
• A corridor lamp inside (NHR-4A) must not be connected with more than 4 bedside sub stations.  
• Due to the above, install two NHR-4A corridor lamps when more than 4 sub stations are in one  
room, i.e. two WHITE lamps used in one NHR-4A, and one RED bulb used in the other NHR-4A.  
• NH-1SA/A and NH-2SA/A station numbers must be programmed in numerical order and  
connected to the same subs trunk line.  
• NHR-7A bathroom pullcord is optional.  
1. Four bed application covered by four NH-1SA/A sub stations  
with a common bathroom pullcord  
NHX-80X  
CCU  
3P(or 4P)  
Subs trunk line 1  
3P(or 4P)  
NHR-4A  
NH-1SA/A  
3 or 4  
NH-1SA/A  
NH-1SA/A  
NH-1SA/A  
3P×2  
3P×2  
3P×2  
3
NHR-7A  
(common  
bathroom)  
TO next patient room  
Each pair: polarized  
To Subs 11  
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
CN1  
block 1  
12  
13  
14  
15  
16  
NHR-4A  
Brown  
Orange  
Red  
Brown  
Red  
Brown  
Brown  
Brown  
CN2  
WL  
WL  
WL  
WL  
RL  
E
RL  
E
RL  
E
RL  
E
(*2) Orange  
Orange  
Orange  
Orange  
Yellow  
Blue  
Green  
Blue  
Orange  
Yellow  
Green  
Blue  
NHR-7A  
TC  
TL  
E
TC  
TL  
E
TC  
TL  
E
TC  
TL  
E
(*1)  
Z1  
Purple  
Purple  
Gray  
Purple  
Gray  
Purple  
Gray  
ZL  
LC  
ZL  
LC  
ZL  
LC  
ZL  
LC  
(*1) Terminal Z1 for lighting Lamp 1 in NHR-3A-4.  
(*2) NHR-7A may be wired to any sub station convenient. Terminal RL is wired  
only on the sub station which NHR-7A is connected to.  
The above example shows a patient room with four beds, in which a common bathroom pullcord is used.  
Multiple sub applications can be arranged in the following manner.  
Beds in Room  
2
Subs combinations  
One NH-2SA/A or two NH-1SA/A  
One each NH-2SA/A & NH-1SA/A  
or three NH-1SA/A  
Two NH-2SA/A or four NH-1SA/A  
Two NH-2SA/A & one NH-1SA/A  
Three NH-2SA/A  
Beds in Room  
Subs combinations  
Three NH-2SA/A & one NH-1SA/A  
Four NH-2SA/A  
Four NH-2SA/A & one NH-1SA/A  
Five NH-2SA/A  
7
8
9
10  
11  
12  
3
4
5
6
Five NH-2SA/A & one NH-1SA/A  
Six NH-2SA/A  
Note; Bedside sub station Models: NH-1SA and NH-2SA CANNOT be used in multiple bed patient rooms.  
– 22 –  
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WIRING DIAGRAMS  
Multi-Station Patient Room Applications  
2. Max. 12 bed application covered by six NH-2SA/A sub stations  
with or without a common bathroom pullcord  
NHX-80X  
CCU  
Subs trunk line 1  
3P(or 4P)  
NH-1SA/A  
NH-2SA/A  
#1  
(*) One red lamp  
2 white lamps  
NHR-4A  
NHR-4A  
#3  
#2  
3 or 4  
3P×2  
3P×2  
3P×2  
Left row  
3
3P×2  
Right row  
NHR-7A  
#6  
#4  
#5  
(common  
bathroom)  
(*) Requried only when NHR-7A bathroom pullcord is used.  
Right row of Bedside Subs  
Left row of Bedside Subs  
#1  
#2  
#3  
#4  
#5  
#6  
Each pair: polarized  
To Subs  
block 1  
11  
12  
13  
14  
15  
16  
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
CN1  
CN2  
NHR-4A 1  
Brown  
Brown  
Brown  
Brown  
Brown  
Brown  
WL  
WL  
WL  
WL  
WL  
WL  
(*3)  
2 white  
lamps  
Orange  
Red  
RL  
E
RL  
E
RL  
E
RL  
E
RL  
E
RL  
E
Orange  
Orange  
Orange  
Orange  
Orange  
Orange  
NHR-4A 2  
Red  
TC  
TL  
E
TC  
TL  
E
TC  
TL  
E
TC  
TL  
E
TC  
TL  
E
TC  
TL  
E
1 red lamp  
Orange  
(*1)  
Z1  
Purple  
Purple  
Gray  
Purple  
Gray  
Purple  
Gray  
Purple  
Gray  
Purple  
Gray  
ZL  
LC  
ZL  
LC  
ZL  
LC  
ZL  
LC  
ZL  
LC  
ZL  
LC  
NHR-7A  
Yellow  
Blue  
Green  
Blue  
Notes:  
(*1) Terminal Z1 for lighting Lamp 1 in NHR-3A-4.  
1. In the above example, NHR-4A 2 is required only  
when NHR-7A, bathroom pullcord is installed in  
single and common bathroom.  
2. Bedside sub stations Models: NH-1SA and NH-2SA  
CANNOT be used in multiple bed patient rooms.  
(*2) NHR-7A may be wired to any sub station convenient.  
Terminal RL is wired only on the sub station which  
NHR-7A is connected to.  
(*3) Remove the red cap on a lamp inside.  
– 23 –  
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4
MOUNTING  
The NHX-80X should be mounted on either 3-gang box or on inside UL Listed electrical enclosure.  
To open the front cover;  
1. On the NHX-80X, pull at bottom of the cover and lift cover off the chassis.  
2. Unplug CN-1~CN-5 connectors to disconnect from chassis.  
Mounting NHX-50M on 3-gang box  
Chassis mounts on “flush” box with no  
extension or spacer.  
Mounting NHX-80X inside Electrical Enclosure  
The size of the electrical enclosure should be more than  
23-5/8" H
؂
19-11/16" W
؂
4" D. 600H
؂
500W
؂
100D  
(mm) and with secured door.  
(screwless wire terminations)  
1. A suitable, non-combustible mounting surface  
adequately sized must be attached inside the enclosure.  
NHX-80X dimensions:  
18-1/8" H
؂
13-3/8" W
؂
3-7/8" D.  
460H
؂
340W
؂
98D (mm).  
2. Cut off openings for cable inlet.  
Conduits (optional)  
3. Secure chassis with 4 wood screws : 4.1mm
ן
16mm.  
UL Listed  
3-gang box  
Cover  
UL Listed  
Electrical enclosure  
WALL  
Front cover  
screws (2)  
Screws (4)  
Wood screws (4)  
(when mounted  
to wood backboard)  
Power switch  
Cover  
Front cover  
screws (2)  
Power switch  
NHX-80X  
chassis  
NHX-80X mounting example :  
Underneath counter  
Conduits  
(optional)  
NHX-50M console  
NHX-80X should be mounted  
on either 3-gang box or  
non-combustible  
mounting plane wall.  
PS-24E  
or  
PS-2420  
NHX-80X  
Chassis  
Door  
Front cover  
– 24 –  
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4. MOUNTING  
Mounting NHX-50M master station  
As shown, NHX-50M can be wired to NHX-80X CCU, using terminal cord supplied.  
At NHX-50M end, plug in 10-pin connector.  
to NHX-80X  
CCU  
Cable clamp  
Terminal cord, approx. 6' 7" (2m)  
To connect NHX-30G;  
Cut off this part with a  
cutter.  
Cable clamp  
NHX-50M  
Chassis back view  
10-pin plug-in socket  
CN1  
Assembling two Consoles: NHX-50M & NHX-30G  
On the bottom of the NHX-50M, cut off the socket part and plug 2 connectors from the NHX-30G into the  
socket. Mount the cover at 3 points, which connects NHX-50M & NHX-30G units together.  
Yellow  
CN3  
Yellow  
CN2  
NHX-30G  
NHX-50M  
– 25 –  
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4. MOUNTING  
2-gang semi-flush mounting (NH-1SA, NH-2SA, NHR-SP, NHR-3TS)  
The sub station flush-mounts in 2-gang box (UL Listed). Cover clicks to attach.  
As shown terminate connector wires to the Trunk line with wire nuts, and plug into the socket.  
2-gang box  
Box must be more than 2" (50mm) deep.  
3-5/16"  
(83.5mm)  
Sub station back case dimensions (in recess);  
Screws(4)  
H
W
D
H
W
D
NH-1SA/A,  
NH-2SA/A  
NHR-3TS  
68.5 86.5  
68.5 86.5  
35 2-11/16" 
3-7/16" 1-3/8"  
45 2-11/16" 
3-7/16" 1-3/4"  
Cover  
e  
(NH-2SA/A in this illustration)  
Sub trunk line cabling  
It is recommended to use a junction box to divide 3P trunk line to each Sub station.  
Splice three cables together, i.e. Trunk line in & out cables and the cable going to the Sub at the Single-  
gang box of Corridor lamp or 2-gang box for NHR-3TS.  
Corridor lamp (for bedside sub)  
NHR-3TS Sub 
station  
SINGLE-GANG-BOX  
for corridor lamp  
(2-gang box)  
3P sub trunk  
outgoing cable  
3P sub trunk  
incoming cable  
3P sub trunk  
incoming cable  
3P sub trunk  
outgoing cable  
Splice three cables  
together with wire nut  
Splice three cables  
together with wire nuts.  
6 lead-wires from  
6-pin connector  
Separate cable for  
lamp (3 cond.)  
To: NH-1SA or NH-2SA  
bedside sub station  
NHR-3TS  
- CAUTION: THE TOTAL SYSTEM CHASSIS RISK CURRENT SHOULD NOT EXCEED 500µA.  
- ATTENTION: LE COURANT DE RISQUE TOTAL ADMISSIBLE AU CHASSIS NE DOIT PAS  
DEPASSER 500µA.  
– 26 –  
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4. MOUNTING  
NHR-4A  
1. Remove the lamp cover, pressing on both sides.  
2. Terminate 3 wires from NH-1SA/A or NH-2SA/A  
bedside sub.  
3. Mount NHR-4A on 1-gang box with 2 screws  
supplied.  
SINGLE-GANG BOX  
4. Reattach the lamp cover.  
NHR-7A  
SINGLE-GANG BOX  
1. Terminate 3 wires from NH-1SA/A or NH-2SA/A.  
bedside sub or NHR-3TS common area call station.  
2. Mount NHR-7A on 1-gang box.  
3. For bathroom call, tie up pullcord supplied.  
NHR-3A-4  
CEILING  
1. Put number labels (1 ~ 4) on lamp covers.  
2. Terminate 5 wires from NHX-80X as follows;  
R1 to Orange (Zone 1)  
5-GANG BOX  
R2 to Yellow (Zone 2)  
R3 to Green (Zone 3)  
R4 to Blue (Zone 4) and  
RC to Red (PS-24E 
ם
 terminal)  
3. Mount NHR-3A-4 to 5-gang box with 4 screws  
supplied.  
– 27 –  
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5
OPERATIONS on NHX-50M  
At NHX-50M  
Directory  
Sub call-in LED  
Sub Selector button  
Speaker  
Handset  
Power on LED  
Attendance LED  
TONE-OFF button  
Mic  
TALK button  
OFF  
button  
Receiving a Routine Call (Bedside)  
At NHX-50M  
At site  
When a Bedside sub station presses CALL button;  
1. Single chime tone rings on NHX-50M every 6  
seconds, and a call-in LED blinks slowly every 2  
seconds.  
2. Press TONE-OFF button to silence tone. The LED  
above is lit.  
At Zone light;  
A corresponding zone lamp is steadily lit.  
At corridor lamp;  
White lamp is steadily lit.  
3. Go to the Sub station. Press CANCEL button to reset.  
At Sub station;  
While NHX-50M is ringing, red CALL LED is lit, and  
stays on even after TONE-OFF is pressed.  
OR When NHX-50M replies, green ‘TALK’ LED is lit.  
‘TALK’ LED goes out when communication is finished.  
For communication;  
1. Simply lift handset and communicate (voiceactuated).  
Or press TALK button and communicate.  
2. At conclusion, replace handset, or press OFF button.  
Receiving a Bathroom Pullcord Call (or call from NHR-3TS sub)  
At NHX-50M  
At site  
When a cord is pulled at Bathroom;  
1. Single chime tone rings on NHX-50M every 1.8  
seconds, together with LED double blinking.  
2. Press TONE-OFF button to mute. The LED above is  
lit for attendance.  
At Zone light;  
Light will indicate which zone has a call placed.  
At corridor lamp;  
Red light blinks.  
3. At Sub station, attendant unlocks CALL switch to  
reset the call.  
At Sub station;  
Red CALL LED is lit.  
* Communication is not available from Bathroom.  
Receiving a Cord-Out Trouble Call  
At NHX-50M  
At site  
When a plug has been pulled out of jack;  
1. Single chime tone rings on NHX-50M every 0.5  
seconds, and a call-in LED blinks fast.  
2. Press TONE-OFF button to silence tone. The  
attendance LED is lit above.  
At Zone light;  
Light will indicate which zone has a call placed.  
At Corridor lamp;  
White light blinks.  
3. At the Sub station, attendant may plug the pullcord  
back into jack to reset the call.  
At Sub station;  
Red CALL LED is lit. When the pullcord is plugged in, all  
lights are reset.  
* To communicate, either lift handset or press TALK  
button to establish channel.  
– 28 –  
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5. OPERATIONS on NHX-50M  
At NHX-50M  
Placing Call  
At NHX-50M  
At site  
To call a Bedside Sub station;  
1. Press a Sub selector button. The red LED is steadily  
lit.  
2. Lift handset and communicate, voice actuated.  
OR Press TALK button to talk, and release to listen.  
3. At conclusion, replace handset, or press OFF button.  
At Zone light;  
At Corridor lamp;  
At Sub station;  
Not lit.  
Not lit.  
Pre-tone sounds, and green TALK  
LED is lit.Communicate  
handsfree.  
• Volume Adjustments  
Speaker receive voice volume & call tone signal are  
adjustable as needed on the left side of NHX-50M.  
RECEIVE: 3 positions. TONE: 3 positions  
RECEIVE VOL  
High Low  
TONE VOL  
High Low  
NHX-50M side view  
• When multiple calls are received  
Up to 5 calls from subs can be displayed simultaneously, and  
additional calls are placed on hold (Zone light only will be  
on). When a call is answered and reset, the next call on hold  
will light on the NHX-50M, until all calls are answered.  
• Other operations  
1. Call-in during communication will activate both call tone &  
LED.  
2. While call tone is muted, call-ins will be annunciated by  
tone & LED in the order of urgency first, then in the order  
they were received.  
At Duty Station  
When a bedside or NHR-3TS sub station has placed any  
type of call, the duty station indicates a Routine, Urgent  
Bathroom call or Cord-out Trouble Call.  
1. Call tone sounds, and CALL LED blinks.  
2. Press TONE-OFF button to silence tone.  
NHX-50M keeps on ringing.  
At NHR-3TS Sub station  
• Urgent Bathroom Call  
Bathroom call sub station(NHR-3TS) is a 2-light corridor  
lamp in the hallway and the NHX-50M acknowledges a call;  
1. When a pullcord has activated an urgent call to the NHX-  
50M, the NHR-3TS lamp blinks red.  
2. Communication is not available. Wait for the attendant to  
come to the location.  
• Urgent Staff Call  
1. Press or pull an urgent call switch connected to NHR-3TS.  
2. NHR-3TS lamp starts blinking white.(Red lamp cover is  
removed.)  
3. Wait for the attendant to come to the location.  
– 29 –  
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5. OPERATIONS on NHX-50M  
Call tone & light annunciation  
(*) Sound & LED time is approximate.  
Light  
Type of calling  
Call tone  
At NHX-50M Master station  
• Receiving  
Routine call  
Single chime, every 6 sec.  
Blinking, every 2 sec.  
Double blinking, every 1.8 sec.  
Blinking fast, every 0.4 sec.  
Lit 0.2 sec., every 2 sec.  
No light  
Bathroom call (urgent) Single chime, every 2 sec.  
Cord-out trouble call  
Bedside sub from Trunk  
Duty station from NHX-80X Faster buzzer, intermittent  
Call tone (as above)  
Single chime, every 0.5 sec.  
Slow buzzer, intermittent  
• Line-off trouble  
• While talking  
Call-in LED steadily lit  
At NH-1SA/A, NH-1SA, NH-2SA/A or NH-2SA Bedside Sub station  
• Placing  
Routine call  
CALL steadily lit  
Not lit  
Bathroom call (urgent)  
CALL lit on Pullcord switch  
CALL steadily lit.  
CALL is off, and TALK is on.  
TALK is on  
Cord-out trouble call  
• While talking  
• When master calls in  
Pre-tone  
At NHR-4A Room Corridor lamp (white/red)  
When Sub placed a call Routine call  
White steadily lit  
Red blinking  
White blinking  
Not lit  
Bathroom call (urgent)  
Cord-out trouble call  
While talking  
At NHR-3A-4 Zone light  
• When Sub placed  
Routine call  
1 ~ 4 lamp turns on for any call from  
Bedside sub or NHR-3TS.  
Urgent call  
Cord-out trouble call  
At NHR-3TS sub station (w/corridor lamp) in Common area or Hallway  
Placing  
Bathroom call (urgent)  
Staff call (urgent)  
Red blinking on NHR-3TS  
White blinking on NHR-3TS  
At NHR-SP Duty station  
• When Master received Routine call  
Urgent call  
Single chime, every 6 sec.  
Single chime, every 2 sec.  
Single chime, every 0.5 sec.  
CALL blinking, every 2 sec.  
CALL double blinking, every 1.8 sec.  
CALL blinking fast,every 0.4 sec.  
Not lit  
Cord-out trouble call  
While Master talking  
Calling from NHX-50M  
When NHX-50M has called a bedside Sub station, no light turns on on the corridor lamp, zone light and sub station  
except TALK LED lit green on the sub station.  
6
TECHNICAL PRECAUTIONS  
Temperatures  
Call Holding  
NHX-80X and NHX-50M are rated to operate at  
temperatures 10˚C~49˚C(50˚F~120˚F).  
Every Routine call is held electronically at bedside  
sub station, and will be automatically connected  
when handset is lifted or TALK button is pressed at  
the NHX-50M. To reset the call, press CANCEL  
button on the Sub station. 
When a Bathroom call &  
Cord-out trouble call is activated, the LED will  
remain on even after the NHX-50M has answered.  
The call must be reset at the calling site.  
Duty Station Operation  
At NHR-SP, sub station call-in is annunciated by  
tone & LED, which are the same as on  
NHX-50M.  
• The TONE-OFF button silences tone, but CALL  
LED remains lit. When the NHX-50M begins  
communication, both tone and LED are  
deactivated.  
• 90 seconds after the call tone is muted, it will ring  
again. Press TONE-OFF button, and it will no  
longer ring (tone will resume when another sub  
calls).  
– 30 –  
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6. TECHNICAL PRECAUTIONS  
RESET switch  
The NHX-50M is capable of having as many calls held  
as there are sub stations. To reply to next call, hang up  
and lift handset or press TALK button to establish  
channel.  
• If calls are of the same level; in the order of time of  
call,  
Do not use RESET switch except for initializing or  
testing the NHX-80X. If RESET is pressed while a call  
is being placed or a Bathroom call or Cord-out trouble  
call has been placed, it will suspend the call.  
• If calls are of different levels; in the order of urgency.  
* Do not press RESET switch except when installing,  
changing subs, or when system malfunctions.  
Operational Modes in Multi-Station Patient Room  
application  
Adjusting Preset Volumes  
When single or multiple calls have been placed from the  
same patient room, corridor lamp will be activated as  
follows;  
On the bottom of the NHX-50M, adjust volume controls  
to desired level.  
* TRANSMIT: Adjusts the NHX-50M’s voice heard at  
bedside sub.  
* RECEIVE: Adjusts the speaker volume on NHX-50M.  
Adjustable 3-position control on the left panel.  
• PRE-TONE: Adjusts pre-tone to the desired level  
heard at bedside sub.  
• TONE: Adjusts initial call tone level. 3-position switch  
varies volume from preset level (user-adjustable).  
• DUTY STATION: Adjusts call tone level heard at Duty  
Station  
Type of calls placed  
Corridor lamp  
Sub1  
Sub2  
Sub3  
Red  
White  
Routine  
Blinking  
Steady  
Bathroom  
Cord-out  
Blinking  
Steady  
Blinking  
Blinking  
Blinking  
Routine Bathroom  
Blinking  
Routine  
Cord-out  
When System Malfunctions;  
Bathroom Cord-out Blinking  
Routine Bathroom Cord-out Blinking  
Call tone sounds on the NHX-50M without being called.  
Call-in LED is lit, but no call tone.  
In such occasions, check the status of system, and turn  
power switch off and on again at the NHX-80X. If the  
system does not return to normal operation, turn OFF  
power switch and contact your installing dealer or  
Aiphone.  
Warning tone  
(1) If a call has been left unanswered for 90 seconds,  
the call tone volume will go up to HIGH level  
regardless of the set position.  
(2) If handset is left off the hook at NHX-50M for 90  
seconds during communication, a warning  
tone(steady) will be heard. Replace handset, and  
the tone will stop.  
Call priority:  
1. Cord-out trouble call  
2. Bathroom call, or NHR-3TS common area  
bathroom call or staff call (urgent call),  
3. Routine call  
Line-off Trouble: Connector unplugged status on  
Bedside or Bathroom call sub stations & Duty station  
In Standby mode;  
Priority is put in the order of Cord-out trouble call,  
Bathroom call and Routine call.  
Cord-out trouble call is put in first priority, and overrides  
any other calls on the system.  
When a buzzer warning tone (*) has been activated at  
the NHX-50M, the wire connector is disconnected from  
the back of the Sub station or Duty Station. The warning  
tone cannot be silenced by TONE-OFF button. To mute  
the slow buzzer (with a blinking call-in LED on the  
corresponding Sub), either lift handset or press TALK  
button. To mute faster buzzer with no LED lit, remount  
the shorting connector (**) on CN104 at the NHX-80X.  
The Duty Station will no longer be acknowledged. To  
restore, call the installing dealer or Aiphone.  
During communication;  
The NHX-50M master station sounds an incoming call  
tone while talking to another station, the same as in  
standby mode. A new call doesn’t override an existing  
conversation. Reply after concluding current call.  
Up to 5 sub call-ins can be displayed on the selector  
switch bank. All the calls placed are held in a queue,  
and will resume light and tone at NHX-50M after each  
previous call is concluded.  
Momentarily hang up handset, and the next call tone is  
audible. The sixth call will not illuminate on  
NHX-50M nor on Corridor lamp (Only zone light will be  
lit).  
(*) Line-off Trouble detects disconnected status of 3, 4,  
5 & 6 wires only on sub station.  
(**) Shorting connector is attached to the internal wires  
inside the NHX-80X.  
– 31 –  
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6. TECHNICAL PRECAUTIONS  
Other Operations  
Fuse replacements  
(1) On a corridor lamp, the white lamp steadily lit (during  
routine call) may vary if another bathroom call or  
cord-out trouble call has been placed in the same  
trunk.  
If either fuse blows, there is a problem with the system's  
power or wiring. Turn power switch on NHX-80X off,  
and call the installing dealer immediately. The cause of  
the problem must be found and resolved before new  
fuses are installed, restoring the system to normal  
operation.  
(2) A pullcord call in a bathroom illuminates the master  
call indicator lamp on the panel.  
Two UL Listed replacement fuses (250V AC, 3A) are  
included in the NHX-80X.  
If another call has been placed from a bathroom  
nearby, the lamp will look dimmer on both units.  
7
SPECIFICATIONS
(NHX-80X)  
• Power source:  
NHX-80X: 24V DC.  
• Current consumption: Max. 4A.  
• Power supply:  
Install two power supplies PS-24E or PS-2420 (Rated input 120V AC, 50/60Hz.  
Rated output: 24V DC, 2A) to the NHX-80X.  
All other accessories are powered by NHX-80X Central Control Unit except for  
Zone light Model: NHR-3A-4.  
50 sub stations (NHX-50M), plus 30 sub stations (NHX-30G).  
Add NHR-30K when NHX-30G is included.  
• Station capacity:  
• Talk channel:  
• Call-in priority:  
Single and private.  
1. Cord-out trouble call.  
2. Bathroom call, room or common area, or NHR-3TS staff call (urgent call).  
3. Routine call.  
Use UL Listed twisted pair only copper conductor cable for all wiring.  
6 (3P) looped, CCU to a trunk line of 10 subs.  
10 (5P), CCU to NHX-50M.  
• Wiring:  
• Wiring distance:  
22AWG  
0.65mmø  
CCU to farthest sub  
Each sub trunk line must not exceed;  
165’  
330’  
50m  
100m  
CCU to NHX-50M  
65’  
65’  
20m  
20m  
CCU to Duty station  
18AWG  
165’  
1.0mmø  
50m  
CCU to Zone light  
CCU to Power supply  
16’  
5m  
WARRANTY  
Aiphone warrants its products to be free from defects of material and workmanship under normal use and service for a period of one year  
after delivery to the ultimate user and will repair free of charge or replace at no charge, should it become defective upon which examination  
shall disclose to be defective and under warranty. Aiphone reserves unto itself the sole right to make the final decision whether there is a  
defect in materials and/or workmanship; and whether or not the product is within the warranty.  
This warranty shall not apply to any Aiphone product which has been subject to misuse, neglect, accident, or to use in violation of  
instructions furnished, nor extended to units which have been repaired or altered outside of the factory. This warranty does not cover  
batteries or damage caused by batteries used in connection with the product.  
This warranty covers bench repairs only, and any repairs must be made at the shop or place designated in writing by Aiphone.  
Aiphone will not be responsible for any costs incurred involving on site service calls.  
AIPHONE CO., LTD., NAGOYA, JAPAN  
AIPHONE CORPORATION, BELLEVUE, WA, USA  
AIPHONE EUROPE N.V., ANTWERP, BELGIUM  
Printed in Japan(E)  
– 32 –  
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