Nortel CS 1000 Series Installation And Commissioning Manual page 40

40 Installing ISDN BRI hardware
Procedure 11
Providing clock referencing on the SILC
Step
To install the NTRB53 Clock Controller for CS 1000 Release 4.0 refer to
NN43001-301
1
2
3
4
5
6
7
8
Connecting clock reference cables
Complete this procedure to connect the ISDN BRI clock reference cables
to the Clock Controller. There are three different cables that route clock
signals from the IPE back plane to the Clock Controller face plate (as
shown in
to Table 8 "ISDN BRI clock reference tables" (page
Table 8
ISDN BRI clock reference tables
Code
NTND70AA
Copyright © 2003-2009 Nortel Networks
.
Action
Maintain the same polarity on each transmit and receive. Rewire
the selected Tx and Rx pairs (applicable to DSL0 and DSL1) to
exchange the Tx and Rx pair position. This rewiring is done at
the Main Distribution Frame (MDF).
Remove the phantom power jumpers (two jumpers per DSL)
from the pin headers.
Place the SILC in the selected IPE slot.
Configure the selected DSL as Terminal Equipment (TE) mode in
LD 27.
Enable the clock in LD 60 to output the clock references to the
IPE back plane pins.
Configure the Clock Controller card to accept ISDN BRI clock
reference.
Check the appropriate messages from the Clock Controller to
ensure that it is synchronized to the proper clock reference in LD
60).
Connect the ISDN BRI clock reference cables to the Clock
Controller, using the procedures which follow.
Figure 11 "Clock reference cable connection" (page
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 03.01
11 May 2009
--End--
Length (feet) Use
1.5
Connects IPE back plane to
IPE I/O panel.
42)). Refer
40).