Instruction/ maintenance manual of the product D4-U-RPM ADTRAN
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SECTION 61100022L1-5 PAGE 1 FIGURE 1. ADTRAN D4 U-RPM 61100.022L1-5C C A U T I O N SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. PRACTICES ® WECO is a registered trademark of AT&T Technologies Contents Paragraph Page 1.
SECTION 61100022L1-5 PAGE 2 (20) (47) (1) (43) (15) (51) (24) 85 mA To LT FIGURE 2. U-Repeater Powering Module Application U INTERFACE MDF U-RPM CURRENT SOURCE - + REPEATER POWER CONVERTER ISDN U-REPEATER D4 POWER MODULE MAIN DISTRIBUTION FRAME LT T R R1 T1 GND -48 -48 RET TO CUSTOMER 12,000 Ft.
SECTION 61100022L1-5 PAGE 3 ® J1 J2 J3 FIGURE 4. U-Repeater Powering Module Option Locations - 48 V RET GND T1 T R R1 -48 V operation of the U-RPM. 4.0 MAINTENANCE 4.01 The U-RPM requires no routine maintenance to operate. ADTRAN recommends that units not be repaired in the field.
An important point after buying a device ADTRAN D4-U-RPM (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought ADTRAN D4-U-RPM yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data ADTRAN D4-U-RPM - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, ADTRAN D4-U-RPM you will learn all the available features of the product, as well as information on its operation. The information that you get ADTRAN D4-U-RPM will certainly help you make a decision on the purchase.
If you already are a holder of ADTRAN D4-U-RPM, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime ADTRAN D4-U-RPM.
However, one of the most important roles played by the user manual is to help in solving problems with ADTRAN D4-U-RPM. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device ADTRAN D4-U-RPM along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
