Table of Contents
Advertisement
Connections
Composite Clock Connections
This step is required only if provisioning for DDS circuits.
Termination resistors (TERM1 and TERM2) are located below the composite clock wire-wrap pins to provide the
correct termination on the composite clock. To connect the clock leads from the Central Office Timing Source
Generator to the COT shelf backplane:
1
Connect the first clock pair from the timing source generator to the CC1TIP and CC1RING
2
Connect the second clock pair from the timing source generator to the CC2TIP and CC2RING
When connecting multiple COT shelves, you can wire-wrap pins on the backplane to allow up to seven
shelves in daisy-chain fashion.
3
From the COT shelf at the end of the daisy-chain, connect CC1TIP to one terminal of TERM 1, and
CC1RING to the other terminal on TERM 1
4
From the COT shelf at the end of the daisy-chain, connect CC2TIP to one terminal of TERM 2, and
CC2RING to the other terminal on TERM 2
40
(Figure
10).
(Figure
10) if a second composite clock source is to be used.
January 6, 2003
SCP-PCS718-010-06H
PCS-718 List 1
Advertisement
Table of Contents
