User manual

Page 236 of 458 Cabling Common Equipment in a Multi Group system
NN43021-310 Standard 02.02 October 2008
Connecting the Clock Controller cables
Two Clock Controller cards are required in each system. These cards
synchronize Large System functions. Figure 100 on page 237 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.