Configuring Control Modules and System Timing
Configuring system clocking
Stinger® FS/Stinger FS+ Getting Started Guide
5-19
Figure 5-9. Bridged connection of redundant internal modems
When you bridge internal modems to a single line in this way, you must change the
status of the internal modems so that only the control module designated as primary
can answer incoming calls. If the first control module is the primary control module,
proceed as in the following example to set the status of the internal modems to
answer calls only on the primary control module:
admin>
read modem {1 first-control-module 3}
MODEM/{ shelf-1 first-control-module 3 } read
admin>
set auto-answer = primary-only
admin>
write
Setting the
auto-answer
parameter on the primary control module to
primary-only
automatically configures the secondary control module with the
same setting.
Configuring system clocking
The Stinger unit requires a clock source for its timing subsystem. By default, it uses a
built-in 8kHz clock on the primary control module as its timing source. You can
configure the system to take its clock source from a trunk port or from an external
building interoffice timing source (BITS) clock connected to the Stinger alarm relay.
Using the default (controller) clock source
The Stinger unit has an internal 8kHz clock on its control modules. By default, the
unit uses the clock on the primary control module as the source for its timing
subsystem. To configure the unit to obtain its clock signal from another source, set
the following parameter (shown with its default setting):
To telephone
connector
block
