Nortel 1000 Installation And Commissioning Manual page 40

40 Installing ISDN BRI hardware
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3
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6
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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 Figure 11 "Clock reference cable connection" (page
8 "ISDN BRI clock reference tables" (page
Table 8
ISDN BRI clock reference tables
Code
NTND70AA
NTND71AA-AD
NTND72AA
Copyright © 2003-2007, Nortel Networks
.
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.
Note: Measure the distance between the IPE and CE modules to
ensure that you order the correct cable lengths.
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 01.02 Standard
Release 5.0 20 June 2007
—End—
40).
Length (feet) Use
1.5 Connects IPE back plane to
IPE I/O panel.
6.5, 12, 25, 42 Connects IPE I/O to CE I/O
panel.
6.5 Connects CE I/O to Clock
Controller face plate.
41)). Refer to Table