Nortel Networks DCT1900 - Manual (Page 278)

Technical Product Manual - DCT1900
Installation Instructions, Modular Cabinet – CLU/SLU to Base Station Cabling
21-2 Install-DCT1900/R8/mw
© 2000-2005
21.2 Installation of Cables
Note:
Base Stations with cables longer than 1.3 miles up to 2.17 miles must always be connected to a
CLU with product code REX-BRD0014 or ROFNB 157 11/2.
Base Station with cables of up to 1.3 miles can be connected to a CLU/SLU with product code
REX-BRD0014 (ROFNB 157 11/2) or REX-BRD0015 (ROFNB 157 16/1) or REX-BRD0016
(ROFNB 157 16/2).
CLU/SLU to the MDF
Cable sets NTM/TSRNB 101 29 and NTM/TSRNB 101 46 connect from the CLU/SLU boards in
the modular cabinet to 66 blocks (or equivalents) on the MDF. Refer to the Table 21-2 and 21-3 for
the pinout of the respective cables.
1. Connect the plug of CLU/MDF cable TSRNB 101 29/2 (or the long cable TSRNB 101 46/2) to
the upper connector of the furthest right CLU or SLU as shown in Fig. 21–2.
2. Connect the plug of CLU/MDF cable TSRNB 101 29/1 (or the long cable TSRNB 101 46/1) to
the lower connector of the same CLU or SLU as in the previous step.
3. Screw the shielding clamp of TSRNB 101 29/2 (or TSRNB 101 46/2) to the furthest right free
position on the ground strip using two M3 x 10 torx screws delivered with the Modular Cabinet.
4. Screw the shielding clamp of TSRNB 101 29/1 (or TSRNB 101 46/1) to the next furthest right
free position on the ground strip.
5. Connect the cable set TSRNB 101 29 to the provided 66 blocks via the 25 pair amphenol
connector. Connect the cable set TSRNB 101 46 to the provided 66 blocks, or any other block
by punching the wires down. Circuit wiring is shown in Table 21-2.
Note:
To meet EMC requirements, the cable should never be cut to a length shorter than 8.20 ft.