ADC Network Card HRM 238 L1 User Manual

HRM-238 List 1 HiGain Retrofit Management Shelf  
User Manual  
Product Catalog: HRM-238 L1  
CLEI: T1MFW004  
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LTPH-UM-1237-04  
Using This Manual  
USING THIS MANUAL  
The following conventions are used in this manual where applicable:  
Monospace typeindicates screen text.  
Keys you press are indicated by small icons such as Y or ENTER . Key combinations to be pressed  
simultaneously are indicated with a plus sign as follows: CTRL + ESC .  
Items you select are in bold.  
The following types of messages, identified by icons, may appear in text.  
Notes provide information about special circumstances.  
General cautions indicate the possibility of personal injury, product failure, or equipment  
damage if instructions are ignored or not completely followed.  
An Electrostatic Discharge (ESD) caution indicates that a device or assembly is susceptible  
to damage from electrostatic discharge.  
An electrical shock warning indicates the presence of a dangerous level of electrical power  
and the potential for serious personal injury or equipment damage.  
For a list of abbreviations used in this document, refer to “Appendix C - Abbreviations” on page 15.  
INSPECTING SHIPMENT  
Upon receipt of the equipment:  
Unpack each container and inspect the contents for signs of damage. If the equipment has been damaged in  
transit, immediately report the extent of damage to the transportation company and to ADC  
Telecommunications, Inc. Order replacement equipment, if necessary.  
Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short  
or irregular, contact ADC as described in “Appendix B - Product Support” on page 14. If you must store the  
equipment for a prolonged period, store the equipment in its original container.  
HRM-238 List 1  
July 21, 2004  
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Inspecting Shipment  
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HRM-238 List 1  
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LTPH-UM-1237-04  
Table of Contents  
TABLE OF CONTENTS  
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List of Figures  
LTPH-UM-1237-04  
LIST OF FIGURES  
1. HRM-238 List 1 (front view) ........................................................................................................................ 1  
2. Recommended Network Setup for 220 Type Shelves................................................................................... 2  
3. Recommended Network Setup for 3190 Type Shelves................................................................................. 3  
4. Recommended Network Setup for DDM+ Type Shelves ............................................................................. 3  
5. HRM-238 Shelf Backplane Connectors (back view) .................................................................................... 4  
6. Shelf with Brackets Positioned for 19-inch Rack.......................................................................................... 5  
7. Connect -48 Vdc and Frame Grounds to TB1............................................................................................... 6  
8. Connect NMA Wiring ................................................................................................................................... 7  
9. Using BNC Connector................................................................................................................................... 9  
10. AUX or OS Connectors................................................................................................................................. 9  
11. Alarm Relay Wire-Wrap Pins...................................................................................................................... 11  
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LTPH-UM-1237-04  
List of Tables  
LIST OF TABLES  
1. HRM-238 Connectors ......................................................................................................................................4  
2. Terminal Block (TB1)......................................................................................................................................6  
3. P1 and P6 NMA Connectors ............................................................................................................................8  
4. BNC Connector J1 and J3 ................................................................................................................................9  
5. AUX P3 and P5 Connectors...........................................................................................................................10  
6. OS Port P2 and P4..........................................................................................................................................10  
7. Alarm J13 and J14 Pinouts.............................................................................................................................11  
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List of Tables  
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HRM-238 List 1  
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LTPH-UM-1237-04  
Overview  
OVERVIEW  
®
The HiGain HRM-238 List 1 is a two-slot HiGain Retrofit Management (HRM) shelf. This shelf fits into either  
a 19- or 23-inch Central Office (CO) equipment rack. It accommodates up to two HiGain management units  
(HMU-319s). It is used in conjunction with 220-type, unmanaged 3190 type, and DDM+ type mechanic shelves  
to manage HiGain line units.  
The HRM-238 shelf, with two management units installed, provides network management capabilities for a  
maximum of 56 HiGain line units (one 3190 or DDM+ or two 220 shelves). Each management unit in the  
HRM-238 shelf can manage up to 28 line units.  
The HMU-319 management unit installs horizontally into the 4 ¾-inch slots labeled A or B on the HRM-238 shelf  
(Figure 1). Each management unit connects to the shelf backplane through a 96-pin DIN connector.  
96-pin DIN  
connector (J2)  
96-pin DIN  
connector (J4)  
A
B
H0543-A  
Figure 1. HRM-238 List 1 (front view)  
FEATURES  
Standard features include:  
50-pin Amp-type connectors for connection between the management units in the HRM-238 shelf and  
previously unmanaged HiGain line units in 220, 3190, or DDM+ mechanics shelves.  
DB-25 connectors for connection to a computer, terminal, or modem  
British Naval Connector (BNC) for connection to a Local Area Network (LAN) or to a HMU-319 multi-shelf  
connection  
screw-type terminals for -48 Vdc power connection and grounding  
23 wire-wrap pins to monitor alarm relay activity  
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Overview  
LTPH-UM-1237-04  
OPERATIONAL CAPABILITIES  
Application  
With two HMU-319 management units installed, the HRM-238 shelf provides network management for up to 56  
HiGain line units.  
Recommended Network Setup for 220 Type Shelves  
The configuration shown in Figure 2 is the recommended setup for 220 type mechanics shelves. Position the  
HRM-238 shelf between the 220 type shelves, with up to two 220-type shelves above and two below. This limits  
the distance for the wire leads between the connectors for the management units and the line units they manage.  
Figure 2 shows the HRM-238 shelf from the rear view with the A-side connectors on the right and the B-side  
connectors on the left. The leads from the HRM-238 shelf connector attach to the Network Management Agent  
(NMA) pins on the rear of the 220-type mechanics shelves for each line unit managed. The NMA pin on 220 type  
chassis is pin 46.  
-48V A  
NMA 1 to 14 B  
HCS-417/418  
-48V B  
-48V A  
NMA 15 to 28 B  
HCS-417/418  
-48V B  
CO -48V  
Supply  
TB1  
NMA 1 to 28 B  
NMA 1 to 28 A  
Network B  
Network A  
HRM-238  
-48V A  
-48V B  
NMA 1 to 14 A  
HCS-417/418  
-48V A  
-48V B  
HCS-417/418  
NMA 15 to 28 A  
H0544-B  
Figure 2. Recommended Network Setup for 220 Type Shelves  
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Overview  
Recommended Network Setup for 3190 Type Shelves  
The configuration shown in Figure 3 is the recommended setup for 3190 type mechanics shelves. Position the  
HRM-238 shelf below the 3190 type shelves. This limits the distance for the wire leads between the connectors  
for the management units and the line units they manage. Figure 3 shows the HRM-238 shelf from the rear view  
with the A-side connectors on the right and the B-side connectors on the left. The leads from the HRM-238 shelf  
connector attach to the Network Management Agent (NMA) pins on the rear of the 3190-type mechanics shelves  
for each line unit managed. The NMA pin on 3190 type chassis is pin 7.  
NMA 1 to 28 A  
-48V A  
3190  
-48V B  
-48V A  
NMA 1 to 28 B  
3190  
-48V B  
CO -48V  
Supply  
TB1  
NMA 1 to 28 B  
NMA 1 to 28 A  
Network B  
Network A  
HRM-238  
H0544-C  
Figure 3. Recommended Network Setup for 3190 Type Shelves  
Recommended Network Setup for DDM+ Type Shelves  
The configuration shown in Figure 4 is the recommended setup for DDM+ type mechanics shelves. Position the  
HRM-238 shelf below the DDM+ type shelves. This limits the distance for the wire leads between the connectors  
for the management units and the line units they manage. Figure 4 shows the HRM-238 shelf from the rear view  
with the A-side connectors on the right and the B-side connectors on the left. The leads from the HRM-238 shelf  
connector attach to the Network Management Agent (NMA) pins on the rear of the DDM+ type mechanics shelves  
for each line unit managed. The NMA pin on DDM+ type chassis is pin 104.  
NMA 1 to 28 A  
-48V A  
DDM+  
-48V B  
-48V A  
NMA 1 to 28 B  
DDM+  
-48V B  
CO -48V  
Supply  
TB1  
NMA 1 to 28 B  
NMA 1 to 28 A  
Network B  
Network A  
HRM-238  
H0544-D  
Figure 4. Recommended Network Setup for DDM+ Type Shelves  
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Overview  
LTPH-UM-1237-04  
Management Cabling  
Figure 5 shows the location for each connector on the HRM-238 shelf backplane. Table 1 lists the shelf connector  
types and management functions available to the HMU-319 management units through those connectors.  
B-side connectors  
A-side connectors  
50-pin Amphenol  
connector (P6)  
AUX port DB-25  
connector (P5)  
OS port DB-25  
connector (P4)  
AUX port DB-25  
connector (P3)  
OS port DB-25  
connector (P2)  
50-pin Amphenol  
connector (P1)  
H0545-A  
Alarm relay pins (J14)  
BNC connector (J3)  
Terminal block (TB1) Alarm relay pins (J13)  
BNC connector (J1)  
Figure 5. HRM-238 Shelf Backplane Connectors (back view)  
Table 1. HRM-238 Connectors  
No. of  
Pins  
Connector  
Purpose  
Type  
Gender  
P1, P6  
Provides connection from the HRM-238 shelf for the management  
units to each individual card that they manage.  
Amphenol  
(CHAMP)  
Male  
50  
P2, P3, P4, P5  
Provides 4 connection points (two for each management unit) for a  
terminal, computer, or modem. There is one AUX port and one OS port  
connector for each management unit.  
DB-25  
Female  
N/A  
25  
6
TB1  
Provides separate -48 Vdc connection from the CO battery source  
to each management unit. Also provides battery common ground and block  
a frame ground.  
Terminal  
J13, J14  
J1, J3  
Provides connection for alarm relay contacts.  
Wire-wrap  
Male  
23  
1
pins  
Provides a 10BASE-2 connection to a LAN.  
BNC  
Female  
4
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LTPH-UM-1237-04  
Installation  
INSTALLATION  
INSPECTING YOUR SHIPMENT  
Upon receipt of the equipment:  
Unpack each container and inspect the contents for signs of damage. If the equipment has been damaged in  
transit, immediately report the extent of damage to the transportation company and to ADC  
Telecommunications, Inc. Order replacement equipment, if necessary.  
Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short  
or irregular, contact ADC as described in “Appendix B - Product Support” on page 14. If you must store the  
equipment for a prolonged period, store the equipment in its original container.  
INSTALLING THE HRM-238 SHELF  
Install the HRM-238 in a CO equipment bay rack. If the CO rack is 19 inches wide, attach the short side of the  
mounting bracket to the HRM-238 shelf and use the long side of the mounting bracket to attach to the CO rack.  
If the CO rack is 23 inches wide, reverse the mounting bracket. Attach the long side of the mounting bracket to  
the HRM-238 shelf and use the short side of the mounting bracket to attach to the CO rack (Figure 6).  
1
Position the HRM-238 shelf in the CO rack. (See “Operational Capabilities” on page 2, and Figure 2 on  
page 2, Figure 3 on page 3, or Figure 4 on page 3 for recommended placement.)  
2
3
Align the HRM-238 shelf mounting brackets with the vertical mounting holes on the CO rack (Figure 6).  
Install the mounting hardware and secure.  
Security bracket  
Mounting bracket  
Mounting bracket  
A
B
H0546-B  
Figure 6. Shelf with Brackets Positioned for 19-inch Rack  
INSTALLING FRAME GROUND AND BATTERY POWER  
Perform the following steps to install the -48 Vdc battery to the HRM-238 shelf and to connect battery common  
ground (LGND) and frame ground (FGND). The HRM-238 shelf terminal block TB1 has two connection points  
for supplying redundant battery capability. Connect a -48 Vdc battery source to Terminal 1 (-48V_A) to supply  
voltage to the HRM-238 shelf (Table 2 on page 6). Connect another -48 Vdc battery source to Terminal 2  
(-48V_B) to supply redundant voltage to the HRM-238 shelf. See Table 2 on page 6 for TB1 terminal block  
information.  
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LTPH-UM-1237-04  
Table 2. Terminal Block (TB1)  
Terminal  
Description  
1
2
3
4
-48V_A  
-48V_B  
BATTERY RETURN  
FGND  
1
2
3
Remove the fuse(s) in the equipment bay fuse panel for the circuit(s) where the HRM-238 shelf battery  
wire(s) will terminate.  
Connect one end of the frame ground wire to Terminal 4 (FGND) on TB1 of the HRM-238 shelf and attach  
the other end of the frame ground wire to the CO ground wire termination point.  
Connect the -48 Vdc CO battery to the HRM-238 shelf (Figure 7):  
a
Connect a wire to the HRM-238 shelf TB1 Terminal 1 (-48V_A) for Primary CO battery.  
Connect a wire to the HRM-238 shelf TB1 Terminal 2 (-48V_B) for Redundant CO battery.  
b
c
Connect the battery common wire to HRM-238 shelf TB1 Terminal 3 (BATTERY RETURN) of the  
HRM-238 shelf and attach the other end to CO battery ground source(s).  
d
Connect the wire(s) from the HRM-238 TB1 Terminal 1 and Terminal 2 to the CO -48 Vdc power  
termination point(s).  
Terminal 2  
to -48 Vdc  
Terminal 4 to  
frame ground (FGND)  
H0547-B  
Terminal 3 to battery  
common (Battery Return)  
Terminal 1  
to -48 Vdc  
Figure 7. Connect -48 Vdc and Frame Grounds to TB1  
INSTALLING COMMUNICATION WIRING  
All wiring and connections for the HRM-238 shelf are on the back. Figure 5 on page 4 shows the shelf backplane  
and connectors. Connect the NMA wiring from the HRM-238 shelf to each HiGain or Megabit Modem line unit  
that will be managed using the steps beginning on page 7. Then, use the other connectors in “Connect to a LAN  
appropriate for your application.  
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Installation  
Connect NMA Wiring  
From the 50-pin Amphenol connector P1 and/or P6 (Figure 8), wire directly to the NMA pin 46 on the 220-type  
shelf backplane for each line unit being managed. Route wires from the P1 and P6 connectors to the NMA  
220-type mechanics shelves as shown in Figure 2 on page 2. Refer to Table 3 for P1 and P6 NMA connector  
information.  
50-pin Amphenol  
connector (P6)  
50-pin Amphenol  
connector (P1)  
H0548-A  
Figure 8. Connect NMA Wiring  
1
2
Remove the plastic cover from the 50-pin Amphenol connector P1 and/or P6.  
Install a 50-pin female plug into the connector. Separate the wires for each of the 50 pins.  
For 220 type mechanics:  
3
4
5
Wire wrap the corresponding NMA wire from the plug to the NMA pin 46 on the shelf for each line unit being  
managed. The wire leads from the Amphenol plug can be up to 20 feet maximum.  
For 3190 type mechanics:  
Wire wrap the corresponding NMA wire from the plug to the NMA pin 7 on the shelf for each line unit being  
managed. The wire leads from the Amphenol plug can be up to 20 feet maximum.  
For DDM+ type mechanics:  
Wire wrap or soldier (depending on chassis manufacturer) the corresponding NMA wire from the plug to the  
NMA pin 104 on the shelf for each line unit being managed. The wire leads from the Amphenol plug can be  
up to 20 feet maximum.  
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LTPH-UM-1237-04  
Table 3. P1 and P6 NMA Connectors  
Pin  
Description  
Pin  
Description  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
NMA_1  
NMA_3  
NMA_5  
NMA_7  
NMA_9  
NMA_11  
NMA_13  
NMA_15  
NMA_17  
NMA_19  
NMA_21  
NMA_23  
NMA_25  
NMA_27  
F_ALAM  
LOS_ALM  
GND  
1
NMA_2  
NMA_4  
NMA_6  
NMA_8  
NMA_10  
NMA_12  
NMA_14  
NMA_16  
NMA_18  
NMA_20  
NMA_22  
NMA_24  
NMA_26  
NMA_28  
ERR_ALM  
GND  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
N/C  
N/C  
N/C  
N/C  
8
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LTPH-UM-1237-04  
Installation  
Connect to a LAN or Interconnect Shelves  
Use the BNC connector (Figure 9) when required for access using a LAN or for interconnecting multiple shelves.  
Consult the appropriate user manual for the HMU-319 management unit and for the software used in the  
application. See Table 4 for information on BNC connector J1 and J3.  
H0549-A  
BNC connector (J3)  
BNC connector (J1)  
Figure 9. Using BNC Connector  
Table 4. BNC Connector J1 and J3  
Shield  
Center  
LAN-, CDS  
LAN+  
Connect to a Computer, Terminal, or Modem  
The AUX and OS connectors (Figure 10) are DB-25, configured as Data Terminal Equipment (DTE). There is  
one AUX and one OS connector for each of the two management unit slots. Use these connectors for a direct  
connection (straight-through) with devices configured Data Communication Equipment (DCE) such as modems,  
X.25 Packet Assembler/Disassemblers (PADs), or LAN terminal servers.  
AUX port DB-25  
connector (P5)  
OS port DB-25  
connector (P4)  
AUX port DB-25  
connector (P3)  
OS port DB-25  
connector (P2)  
H0550-A  
Figure 10. AUX or OS Connectors  
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Installation  
LTPH-UM-1237-04  
Use a null modem connector for cross-over cabling when attaching a device that is not configured as DCE (such  
as terminals or computers running terminal emulation software) to these connectors. Table 5 shows the pinouts  
for the two AUX ports (one port for each management unit). Table 6 shows the pinouts for the two OS ports (one  
port for each management unit).  
Table 5. AUX P3 and P5 Connectors  
Pin  
Description  
I/O  
Pin  
Description  
I/O  
1
N/C  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
N/C  
2
AUX_TX  
AUX_RX  
N/C  
O
I
N/C  
3
N/C  
4
N/C  
5
N/C  
N/C  
6
AUX_DSR-  
LGND  
N/C  
I
I
N/C  
7
AUX_DTR-  
N/C  
O
8
9
N/C  
N/C  
10  
11  
12  
13  
N/C  
N/C  
N/C  
N/C  
N/C  
N/C  
N/C  
Table 6. OS Port P2 and P4  
Pin  
Description  
I/O  
Pin  
Description  
I/O  
1
N/C  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
N/C  
2
OS_TX  
OS_RX  
OS_RTS-  
OS_CTS-  
OS_DSR-  
LGND  
N/C  
O
I
OS_TCLK  
N/C  
I
I
3
4
O
I
OS_RCLK  
N/C  
5
6
I
N/C  
7
I
OS_DTR-  
N/C  
O
I
8
9
N/C  
N/C  
10  
11  
12  
13  
N/C  
N/C  
N/C  
OS_TCLK  
N/C  
N/C  
N/C  
For further details about connecting to the AUX or OS connectors, consult the appropriate user  
manual for the management unit and applicable software.  
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LTPH-UM-1237-04  
Installation  
IDENTIFYING ALARMS  
Alarm relay contacts for each management unit are on J13 and J14 (Figure 11). Install wiring between these pins  
and an alarm monitoring device per local practice. Table 7 describes the alarm J13 and J14 pinouts.  
H0651-A  
Alarm relay pins (J14)  
Alarm relay pins (J13)  
Figure 11. Alarm Relay Wire-Wrap Pins  
Table 7. Alarm J13 and J14 Pinouts  
Pin  
Description  
Pin  
Description  
1
CRIT_AUD_NC_A  
CRIT_AUD_COM_A  
CRIT_AUD_NO_A  
CRIT_VIS_NC_A  
CRIT_VIS_COM_A  
CRIT_VIS_NC_A  
MAJ_AUD_NC_A  
MAJ_AUD_COM_A  
MAJ_AUD_NO_A  
MAJ_VIS_NC_A  
MAJ_VIS_COM_A  
MAJ_VIS_NO_A  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
MIN_AUD_NC_A  
MIN_AUD_COM_A  
MIN_AUD_NO_A  
MIN_VIS_NC_A  
MIN_VIS_COM_A  
MIN_VIS_NO_A  
SYS_ID_NC_A  
SYS_ID_COM_A  
SYS_ID_NO_A  
EXT_ACO_A  
2
3
4
5
6
7
8
9
10  
11  
12  
LGND  
TURNING UP THE SYSTEM  
Perform the following procedures prior to installing the management unit(s) into the shelf.  
Insert Fuse  
Insert an appropriately sized fuse(s) into the equipment bay fuse panel for the circuit(s) where the HRM-238 shelf  
battery wire(s) were terminated. Refer to the appropriate management unit user manual for power consumption,  
power dissipation, and current drain.  
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Installation  
LTPH-UM-1237-04  
Verify Cabling  
Verify the following:  
1
Verify a minimum of -42 Vdc and a maximum of -56 Vdc between the following:  
a
-48 Vdc battery screw Terminal 1 and the battery common Terminal 3 (BATTERY RETURN)  
b
-48 Vdc battery screw Terminal 2 (when used) and the battery common Terminal 3 (BATTERY  
RETURN)  
2
Visually verify that all connections are securely terminated.  
Secure Cabling  
Tie the cable connectors to the back of the HRM-238 shelf using the tie wraps and mounting screws.  
INSTALLING THE MANAGEMENT UNIT(S)  
1
Install the management unit(s) into the HRM-238 shelf per procedures in the appropriate HMU-319 user  
manual.  
2
Loosen the security bracket screw, push down the security bracket, and re-tighten the screw (Figure 6 on  
page 5).  
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LTPH-UM-1237-04  
Appendix A - Specifications  
APPENDIX A - SPECIFICATIONS  
Power  
Maximum power  
CO Supply  
10.0 Watts  
-48 Vdc nominal (-42.5 Vdc to -56.5 Vdc)  
0.5A  
Fuse Size  
Physical  
Material  
Finish  
Steel  
Zinc plated  
Capacity  
Mounting  
2 management modules (HMU-319 or MMU-319)  
19- or 23-inch rack  
Dimensions  
Height  
Width  
1.75 in. (4.39 cm)  
17 in. (43.18 cm), without mounting brackets  
18.37 in. (46.65 cm), mounting brackets set for 19-inch rack  
22.37 in. (56.82 cm), mounting brackets set for 23-inch rack  
Depth (including the wire-wrap  
terminals)  
12 in. (30.48 cm)  
Weight  
2.5 lb. (1.13 kg)  
Operational Environment  
Temperature  
Humidity  
Altitude  
-40ºC to +65ºC  
5 to 95% (non-condensing)  
200 ft below sea level to 13,000 ft above sea level  
(-60m below sea level to 4,000m above sea level)  
Storage Environment  
Temperature  
Humidity  
-40ºC to +70ºC  
5 to 95% (non-condensing)  
HRM-238 List 1  
July 21, 2004  
13  
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Appendix B - Product Support  
LTPH-UM-1237-04  
APPENDIX B - PRODUCT SUPPORT  
ADC Customer Service Group provides expert pre-sales and post-sales support and training for all its products.  
Technical support is available 24 hours a day, 7 days a week by contacting the ADC Technical Assistance Center.  
Sales Assistance  
800.366.3891  
Quotation Proposals  
Ordering and Delivery  
General Product Information  
Systems Integration  
800.366.3891  
Complete Solutions (from concept to installation)  
Network Design and Integration Testing  
System Turn-Up and Testing  
Network Monitoring (upstream or downstream)  
Power Monitoring and Remote Surveillance  
Service/Maintenance Agreements  
Systems Operation  
ADC Technical Assistance Center  
800.366.3891  
Technical Information  
System/Network Configuration  
Product Specification and Application  
Training (product-specific)  
Installation and Operation Assistance  
Troubleshooting and Repair/Field Assistance  
Online Technical Support  
Online Technical Publications  
Product Return Department  
800.366.3891  
ADC Return Material Authorization (RMA) number and instructions must  
be obtained before returning products.  
All telephone numbers with an 800 prefix are toll-free in the USA and Canada.  
14  
July 21, 2004  
HRM-238 List 1  
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LTPH-UM-1237-04  
Appendix C - Abbreviations  
APPENDIX C - ABBREVIATIONS  
B
BNC:  
Bayonet-Lockingl Connector  
C
CO:  
Central Office  
D
DCE:  
DTE:  
Data Communication Equipment  
Data Terminal Equipment  
H
HCS:  
HiGain Card Shelf  
HMU: HiGain Management Unit  
HRM: HiGain Retrofit Management  
L
LAN:  
Local Area Network  
N
NMA: Network Management Agent  
P
PADs: Packet Assembler/Disassemblers  
HRM-238 List 1  
July 21, 2004  
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15  
   
Appendix C - Abbreviations  
LTPH-UM-1237-04  
16  
July 21, 2004  
HRM-238 List 1  
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CERTIFICATION AND WARRANTY  
FCC COMPLIANCE  
This equipment does not have any clocking source, and is deemed to be a passive device per FCC guidelines.  
When used in conjunction with any clocking devices, this combined system may radiate radio frequency energy  
that can cause harmful interference to radio communications. Operation of such a system in a residential area is  
likely to cause harmful interference, in which case the user will be required to correct the interference at his own.  
LIMITED WARRANTY  
Product warranty is determined by your service agreement. Refer to the ADC Warranty/Software Handbook for  
additional information or contact your sales representative or Customer Service for details.  
MODIFICATIONS  
Any changes or modifications made to this device that are not expressly approved by ADC Telecommunicaitons,  
Inc. voids the user's warranty.  
All wiring external to the products should follow the provisions of the current edition of the National Electrical  
Code.  
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World Headquarters  
ADC Telecommunications, Inc.  
PO Box 1101  
Minneapolis, Minnesota USA 55440-1101  
Technical Assistance  
Tel: 800.366.3891  
DOCUMENT: LTPH-UM-1237-04  
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1299251  
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