Instruction/ maintenance manual of the product D4 U-BR1TE V ADTRAN
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1 Section 61104020L4-5, Issue 3 61104020L4-5C 1. GENERAL This practice provides installation and maintenance procedures for the ADTRAN D4 U-BR1TE V w/PWR and DDS Loopbacks, P/N 1104020L4. Figure 1 is an illustration of the U-BR1TE V. ISDN/DDS The U-BR1TE employs features for both ISDN and DDS transport.
2 Section 61104020L4-5, Issue 3 61104020L4-5C C A U T I O N C A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. • All Layer 1 maintenance function and performance monitoring as specified in TR-NWT-000397 and TR-TSY-000829.
3 Section 61104020L4-5, Issue 3 61104020L4-5C In SLC-96 Mode I with D1D counting channel bank, the time slots are allocated as shown in Figure 3 with two time slots per physical channel slot. The unit uses two time slots in one physical slot and a time slot from an adjacent slot when configured for 2B+D operation.
4 Section 61104020L4-5, Issue 3 61104020L4-5C See Figure 4 for additional channel slot deployment restrictions for each bank type. D4 Bank Requirements The COT D4 bank must be configured with an OIU-2 selected for external timing. The COT bank must be provided with an external composite clock synchronized with the network.
5 Section 61104020L4-5, Issue 3 61104020L4-5C Table 1. SW1, SW3, and SW6 Option Settings e c i v r e S e p y Te p y T e p y T e p y Te p y Tn o i t p On o i t p O n o i t p O n o i t p On o i t p O 3 .
6 Section 61104020L4-5, Issue 3 61104020L4-5C Figure 6 displays the position switch settings at network locations. Front Panel Features The U-BR1TE V front panel features a two position DIP switch, a recessed pushbutton, a rotary switch, a bantam jack, and LEDs, as illustrated in Figure 1.
7 Section 61104020L4-5, Issue 3 61104020L4-5C 3. TESTING The U-BR1TE V responds to embedded operation channel loopbacks, including B1, B2, and 2B+D, when configured for D channel operation. When used in B1 configuration (non-D channel modes of operation) the U-BR1TE V will respond to an in-band DS0 DP latching loopback sequence.
8 Section 61104020L4-5, Issue 3 61104020L4-5C The front panel bantam jacks accommodate standard DS0 Logic Testers such as the TPI 108/109 RT II or FIREBERD 4000/6000 which perform both the upstream and downstream testing.
9 Section 61104020L4-5, Issue 3 61104020L4-5C 4. Depress the recessed TEST pushbutton to initiate the test. The TEST LED will illuminate GREEN and the ERR LED should go out following synchronization to the test pattern from the far end.
10 Section 61104020L4-5, Issue 3 61104020L4-5C IDSL/DDS Description The U-BR1TE V may be deployed in the adjacent to customer position to provide transport for DDS/Frame Relay services with an ADTRAN IDSL OCU-R. This allows pair savings over traditional DDS deployment on local loops up to 18 kft of mixed gauge wire.
11 Section 61104020L4-5, Issue 3 61104020L4-5C DS0 DP Loopback EOC Remapping Upon receipt of subsequent DS0 DP loopback codes when the D channel is disabled, the U-BR1TE V remaps the subsequent DS0 DP loopback sequences into the respective ISDN EOC loopback messages.
12 Section 61104020L4-5, Issue 3 61104020L4-5C Performance Monitoring Local Performance Monitoring is available only for the U-interface, when configured for a leased mode of operation. See the subsections entitled Loopback Tests, Point-to-Point Test , and Local Loopback for applicable test descriptions.
13 Section 61104020L4-5, Issue 3 61104020L4-5C During a remote end initiated loopback the system transmits ASC 9Eh toward the network, indicating an out-of-service condition generated by the remote end, as shown in Figures 10 and 11.
14 Section 61104020L4-5, Issue 3 61104020L4-5C 4. MAINTENANCE The ADTRAN U-BR1TE V does not require routine maintenance for normal operation. 5. WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within ten (10) years from the date of shipment if it does not meet its published specifications or fails while in service.
An important point after buying a device ADTRAN D4 U-BR1TE V (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-BR1TE V 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-BR1TE V - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, ADTRAN D4 U-BR1TE V 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-BR1TE V will certainly help you make a decision on the purchase.
If you already are a holder of ADTRAN D4 U-BR1TE V, 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-BR1TE V.
However, one of the most important roles played by the user manual is to help in solving problems with ADTRAN D4 U-BR1TE V. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device ADTRAN D4 U-BR1TE V 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
