D1255/D1255B
Installation Instructions
EN Keypads
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D1255/D1255B | Installation Instructions | 2.0 Digital Keypad
For the D9412G, D7412G, D7212G, D9124, D9412,
D9112, D7412, and D7212 Control Panels consult
Security System User’s Guide (P/N: 71-06141-000) and the
D9412G/D7412G Program Entry Guide (P/N: 47775).
2.0 Digital Keypad
The D1255/D1255B Keypad features a digital keypad
for accessing the menus, entering user passcodes and
executing system commands in the control panel. As
you press keys, the D1255/D1255B emits a muted
beep tone (refer to Section 2.3 Audible Tones) to indicate
that the entry is accepted. The keypad lights when you
press keys, and remains lit for 20 sec.
2.3
Audible Tones
The D1255/D1255B Keypad has a built-in speaker that
produces several distinct warning tones. The speaker
volume is changed by adjusting the potentiometer
(refer to Item 5 in Figure 2 on page 4). Turn the
potentiometer clockwise to increase volume and
counterclockwise to decrease volume. The speaker
volume also changes as you adjust the brightness of the
display. Refer to Command 49 “Dim Display” in the
Security System User’s Guide (P/N: 71-06141-000) for
more information. You cannot connect external
annunciation devices to the D1255/D1255B. The tones
in Table 2 are silenced by entering a programmed
passcode with the appropriate authority.
When entering a passcode, press keys within 15 sec of
each other. If 15 sec elapse between keystrokes, the
entire entry clears, and you must start over. The
keypad also "times out" on other functions if you wait
15 sec or more between key presses.
2.1
Keypad Function Keys
The D1255/D1255B has five function keys. These keys
control your system.
Table 1: Function Keys
Table 2: Audible Tones
Key
Description
Tone
Description
COMMAND
Use the [COMMAND] bar in combination
with one or two numeric keys to perform a
function.
Use the [ENT/YES] key to complete the
entry of your passcode at the keypad.
The [ENT/YES] key also selects the menu
item shown during a menu selection.
When viewing a list, pressing the [PREV]
key returns you to the previously shown
item.
Burglary
Signal
Entrance
Warning
When an area is in alarm, the D1255/D1255B
emits a steady, high-pitched “bell” tone.
The D1255/D1255B emits an intermittent beep
tone during entry delay periods to remind the
user to disarm the area. This is a programmable
option.
The D1255/D1255B emits an intermittent beep
tone during exit delay and counts down the
number of seconds left until arming takes place.
This is a programmable option.
ENT/YES
PREV
Exit
Warning
Fire Signal
When an area is in fire alarm, the
D1255/D1255B emits a pulsed, high-pitched
“bell” tone.
Pressing an invalid key, or sequence of keys,
causes the D1255/D1255B to emit a flat buzz
tone.
The D1255/D1255B emits a muted beep tone
as each key is pressed to indicate that the entry
is accepted. To disable this feature refer to
Section 3.3.1 Setting the DIP Switches on
page 5.
When a trouble event occurs, such as a service
alert, the D1255/D1255B emits a two tone
warble until you enter COMMAND 4.
NEXT
Press the [NEXT] key to pass over the
present item in a menu or list.
Use the [ESC/MENU] key to returns to
the idle display.
MENU/ESC
Invalid Key
Buzz
2.2
Display
Keypad
Encoding
Tone
The D1255/D1255B Keypad displays the latest status
conditions of the security system using words, numbers,
and symbols in its display. When a series of events
occur that affects the system, the D1255/D1255B
displays each event in order of its priority.
Trouble
Buzzer
For a complete listing and description of the
D1255/D1255B 16-character displays and command
functions available, consult the following
documentation:
Watch
Tone
When you activate the Watch feature, an
intermittent beep tone (the same as the
Entrance Warning Signal) alerts the user
anytime a watch point is faulted. This option is
programmable by point.
Bosch Security Systems | 8/04 | 74-06819-000-F
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D1255/D1255B | Installation Instructions | 3.0 Installation
Figure 2: D1255/D1255B Internal Features
1
2
3
2
4
9
5
3
1
2
3
4
5
6
3
6
8
7
6
1 - 16-Character Display
2 - Top Tab Slot
3 - Mounting Hole
4 - Keypad
6 - Bottom Tab Slot
7 - Dip Switch
8 - Four-Wire Flying Lead Connector
9 - Speaker
5 - Speaker Volume Control (Potentiometer)
3.0 Installation
To wire the D1255/D1255B:
3.1
Mounting the D1255/D1255B
1. Power down the control panel.
2. Gently push in the two bottom tabs of the
D1255/D1255B enclosure cover using a small flat-
bladed screwdriver.
3. Lift the D1255/D1255B cover away from the base
as the tabs are pushed back.
4. Set the address switches (refer to Section 3.3.1
Setting the DIP Switches on page 5).
5. Connect the flying leads of the wiring assembly
(provided) to the wires from the control panel
(Table 3).
The D1255/D1255B Keypad can be mounted using the
following optional packages:
•
•
•
•
D54B Keypad Flush Mount Kit (Brass)
D54C Keypad Flush Mount Kit (Stainless)
D55 Keypad Desk Stand - Desktop
D56 and D56R Keypad Conduit Box
3.1.1
Mounting Locations
Do not mount the keypad in a location
where it is exposed to direct sunlight.
Direct sunlight can interfere with the
D1255/D1255B display screen visibility
and damage internal components.
6. Turn the keypad over and plug in the wiring
connector through the opening in the back of the
enclosure base.
7. Mount the keypad base in the desired location.
8. Secure the keypad in place from inside the
enclosure base by inserting screws in the mounting
holes.
9. Replace the cover by aligning and inserting the top
two tabs of the enclosure cover into the top two tab
slots of the enclosure base.
10. Hold the top edges of the enclosure cover and base
in position.
11. Push the tabs inward.
Do not mount the D1255/D1255B in wet
or moist locations.
3.2
Wiring
Data and power connections between the control panel
and the D1255/D1255B require a four-wire flying lead.
The D1255/D1255B includes a wiring assembly
consisting of four color-coded flying leads and a female
four-pin connector plug at one end.
The maximum recommended wire run for each
D1255/D1255B is 2000 ft (610 m) with either 22 AWG
(0.8 mm) gauge or 18 AWG (1.2 mm) gauge wire.
12. Press the enclosure and cover together until the
cover snaps into place.
4
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D1255/D1255B | Installation Instructions |
Setting the DIP Switches
13. Press each key on the keypad toward the top of the
keypad to ensure proper alignment and operation
of each key through the mating keypad faceplate
openings.
3.3.1
Switches 1 through 3 assign the address for the specific
keypad. Leave Switches 4 and 6 in the ON position.
For supervised keypads, assign only one
keypad to each address. Switch 5 toggles
the encoding tone ON and OFF. With the
encoding tone turned ON, the keypad
sounds a beep every time a key is
pressed.
Table 3: Wiring Connections
Four-Wire Flying Leads
from control panel
D1255/D1255B Flying
Leads
DATA BUS B (30)
DATA BUS A (31)
POWER + (32*)
COMMON – (29*)
To Data Out (Green)
To Data In (Yellow)
To 12 VDC (Red)
To Common (Black)
Table 4: Switch Settings
* = only on the D9412G Control Panel
Switch
Address #
1
2
3
4
5*
6
1
2
3
4
5
6
7
8
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
3.3
DIP Switch Settings and Associated
Functions
Select the address of each keypad and silence the
keypad encoding tone by setting the six-position DIP
Switch (refer to Item 7 in Figure 2) located under the
D1255/D1255B Keypad cover.
*Encoding Tone ON/OFF.
4.0 Specifications
Table 5: D1255/D1255B Specifications
Power
Nominal 12 VDC supplied by the control panel
Current Required
Idle:
104 mA, armed or disarmed.
Maximum:
206 mA, with keypad lighted and warning tone ON.
Wiring
Four-wire expansion cable supplies Data In, Data Out, +12 VDC, and Common.
Maximum resistance on the conductors connected to SDI BUS A and SDI BUS B is 25 Ω.
4.6 in. x 8.1 in. x 0.8 in.
(11.6 cm x 20.7 cm x 20.7 cm)
Dimensions
H x W x D
Color
D1255
PMS Warm Gray
D1255B
White and PMS 429 Gray
Display
Operating Temperature
Relative Humidity
16-character vacuum fluorescent display. Each character is a 14-segment unit. Soft blue color.
+32°F to +122°F (0°C to +50°C)
5% to 85% @ +86°F (+30°C)
Bosch Security Systems | 8/04 | 74-06819-000-F
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D1255/D1255B | Installation Instructions | 4.0 Specifications
Table 6: Control panel compatibility chart
Maximum Number of Keypads
Control panel
D9412G
D7412G
D7212G
D9124
D9412
D9112
D7412
D7212
Supervised
Unsupervised
8
8
8
8
8
8
8
8
32
32
32
32
32
32
32
32
6
Bosch Security Systems | 8/04 | 74-06819-000-F
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D1255/D1255B | Installation Instructions | Notes
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Bosch Security Systems
130 Perinton Parkway
Fairport, NY 14450-9199
Customer Service: (800) 289-0096
Technical Support: (888) 886-6189
© 2004 Bosch Security Systems
74-06819-000-F
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