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Section 400-Programming
Sync Source 1
Software Version: CPC-B Version 4.0 or higher
Address: FF1 8# 4# 1# 2# (1-3)#
Description
The Sync Card (installed on the CPC-B) provides a method of synchronizing
the DBS with the public network. This address determines the first clocking
source for network synchronization (internal clocking by default).
If the first clocking source fails, the system will switch to the second source.
The system will attempt to go back to the first source based on the Network
Re-Sync Timer setting (see FF1 8# 4# 2# 1# 0-25#).
The system considers a clock source to have failed when the Slip Counter is
exceeded within a 24-hour period. See FF1 8# 4# 4/5# 3# 2# (0-9000)# for
instructions on setting the Slip Counter.
Typically, Sync Source 1 is T1 of the master cabinet. See "Notes" below for
a list of typical sync source settings for single- and double-cabinet systems.
Programming
Notes
Typical Sync Settings. In most cases, sync sources should be set as follows
for these configurations:
DBS-2.3/9.2-400
Note: Settings 1 and 2 synchronize
T1 clocking with the public network.
T1 in a Single Cabinet -- or -- T1 in a Master Cabinet
Source 1:
1 (T1 of the master cabinet)
Source 2:
3 (Free run)
Source 3:
0 (None
T1 in a Slave Cabinet
Source 1:
2 (T1 of the slave cabinet)
Source 2:
3 (Free run)
e)
Source 3:
0 (Non
T1s in the Master and Slave Cabinets
Source 1:
1 (T1 of the master cabinet)
Source 2:
2 (T1 of the slave cabinet)
Source 3:
3 (Free run)
DBS Manual - Revised April 2000
Chapter 1. System Programming (FF1)
FF1 8# 4# 1# 2# (1-3)#
1=T1 of the master cabinet
2=T1 of the slave cabinet
3=Free run (internal clocking)
)
Page 1-143
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