Communication Server Large System Installation and Commissioning

Cabling Common Equipment in a Multi Group system Page 235 of 456
Communication Server 1000M and Meridian 1 Large System Installation and Commissioning
Connecting the Clock Controller cables
Two Clock Controller cards are required in each system. These cards
synchronize Large System functions. Figure 100 on page 236 shows the two
Clock Controllers installed in a two-column system.
The Clock Controllers Cards must be installed as directed in the following
three rules.
1 Two Clock Controller cards must be installed in each system. The Clocks
must be connected to each other and to the FIJI cards in Network
Group 0.
2 One Clock Controller must be installed in Network Shelf 0, slot 13. A
second Clock Controller must be installed in Network Shelf 1, slot 13.
3 Clock Controllers should be installed in different Network groups if
possible.
IMPORTANT!
The Clock Controller cannot be installed in the Core/Net
shelf.