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Figure 6-35
Wire Coding of High‑Speed source and Composite Clock Cable
(P/N 830‑0873‑xx or P/N 830‑1189‑xx)
Caution:
A system with DS0A links cannot run without a composite clock source.
Take extreme caution when replacing the composite clock source cables.
Remove one cable at a time and confirm between removal that the other
composite clock source is active.
Note:
If the ACLK3 or ACLK4 connectors did not have cables connected as
indicated in
3
tie‑wraps secure the P2 end of the cable.
Start adding the primary HS clock cable (P/N 830‑0873‑xx) and adapter cable (P/
9.
N 830‑0846‑01) on the control shelf by removing the cable end at ACLK3
connector J57.
At the terminal, the EAGLE displays alarms indicating loss of ACLK to cards on
shelves 4100, 4200, and 4300 with BCLK normal.
Generate a clock status report to confirm that the secondary composite clock is
10.
now active. Enter the following command:
rept-stat-clk
the P2 (DB 25) end of the adapter cable is not used. Using
Chapter 6
Source Timing
6-76
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