C A U T I O N
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
Section 61100022L1-5
Issue 3, April 1992
CLEI Code # DDRPG701_ _
HANDLING PRECAUTIONS REQUIRED.
PRACTICES
MODEL U-RPM
D4-U-RPM
U-REPEATER POWERING MODULE
INSTALLATION/MAINTENANCE
Contents
Paragraph
Page
1. General ............................................................ 1
Figure 1. ADTRAN D4 U-RPM ......................................... 1
2. Installation....................................................... 2
Figure 2. U-RPM Application........................................... 2
Table A. U-RPM Option Selections................................. 2
3. Connections .................................................... 2
Figure 3. Connector Pin Assignments ........................... 3
Figure 4. U-RPM Option Locations................................. 3
4. Maintenance .................................................... 3
5. Warranty And Customer Service .................. 3
1.0
GENERAL
FIGURE 1. ADTRAN D4 U-RPM
1.01
This section provides installation and
maintenance
information for the ADTRAN U-Repeater
1.03
The U-RPM is a channel plug-in used in the
ADTRAN GPC-1 or AD4-24 Shelves or the
Powering Module (U-RPM), Part Number: 1100022L1.
Figure 1shows the front of the unit. Figure 2represents
a generic module application. Figure 3 shows the
connector pin assignments for the U-RPM. The unit's
part number and basic features are:
WECO® D4 channel bank, to provide sealing current
power for the ADTRAN ISDN mid-point loop repeater.
1.04
The U-RPM provides three functions for the
ADTRAN ISDN mid-point loop repeater. These
Part
functions are:
Equipment
Number
Features
1.
TheD4-U-RPM receives-48VDCpower
fromthefacilitypowersourceandsends
constant 85 mA of sealing current down
the loop to power the U-Repeater.
U-Repeater 1100022L1 Repeater Powering for
Powering
Module
ADTRAN ISDN mid-point loop
repeater; Loop resistance fault
indicator; Class A2 or Class A3
operation.
(U-RPM)
2.
3.
A passive customer data flow is allowed
through the D4-U-RPM.
1.02
This practice has been reissued to reflect the
addition of a field selectable powering option in
The D4-U-RPM monitors the line for
excessiveresistanceoropenconditions.
Paragraph 2.04 and Figure 4 and the latest CLEI
designation. Issue3addsanewSalestelephonenumber.
®
WECO is a registered trademark of AT&T Technologies
61100.022L1-5C
PAGE 1
SECTION 61100022L1-5
operation of the U-RPM.
GND
4.0
MAINTENANCE
4.01
The U-RPM requires no routine maintenance to
operate. ADTRAN recommends that units not
be repaired in the field. Repair services may be obtained
by returning the defective unit to ADTRAN.
5.0
WARRANTY AND CUSTOMER SERVICE
5.01
ADTRANwillreplaceorrepairthisproductwithin
five (5) years from the date of shipment if it does
not meet its published specifications or fails while in
service.
For detailed warranty and repair and return
information, refer to our ADTRAN Equipment Warranty
and Repair and Return Policy and Procedure.
5.02
AReturnMaterialAuthorization(RMA)isrequired
prior to returning equipment to ADTRAN.
- 48 V RET
-48 V
5.03
For Sales or General Information, contact:
ADTRAN Customer Service - Sales
(205) 722-8779
For Technical Support, contact:
ADTRAN Customer Service - Technical Support
T1
R1
(800) 726-8663
For RMA requests, contact:
ADTRAN Customer Service - Repair Department
(205) 722-8722
R
T
Repair and Return Address:
ADTRAN, INC.
Customer Service - Repair Department
4955 Corporate Drive
FIGURE 3. Connector Pin Assignments
Huntsville, AL 35805
FIGURE 4. U-Repeater Powering Module Option Locations
®
4955 Corporate Drive • Huntsville, Alabama 35805 • (205) 837-7800 • FAX (205) 722-8699
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