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46
Model 3096RC T-DAC Getting Started Guide
3 • Configuring the T-DAC for operation
8. To enter the default gateway, use the first Add Route line. The Destination shall remain as 0.0.0.0. There is
no mask to enter.
9. Enter the IP address in the Gateway box. This is the default gateway.
10. Click on the
Add Route
button.
Configuring the system clocking parameters
In this section you will define clocking sources for the main reference and fallback reference on the 3096RC
TDAC. Clocking source selection will depend on the clocking role you assign to the blade: master(1), second-
ary(2), or slave(3). The master will drive the main reference clock for the chassis. Should the master fail, the
secondary will drive the main reference. Slaves will not drive any clock reference. Most often the 3096RC will
be configured as slave(3), with another blade (such as the Patton Model 6511) configured as the master(1).
As clocking sources for the 3096RC, you can choose:
•
Any one of the WAN ports
•
An internal oscillator
•
A WAN port from another blade module
•
An external 64-kHz BITS (building integrated timing supply) reference clock
Note
For the external BITS clock setting to operate, you must connect the
BITS clock system at the installation site to the EXT CLOCK connec-
tor on one of the WAN access modules installed in the rear of the
ForeFront chassis.
Unless it fails or becomes disconnected, the main reference provides the system clock for the 3096RC. Should
this failure occur, the fallback reference will be the clocking source for the 3096RC’s system clock.
Example 1
Your 3096RC is the only blade in the chassis and must be configured as the system clocking master. This example
assumes you will use WAN port #1 as the main reference
and WAN port #2 as the fallback reference
.
To define
the clocking source, do the following:
1. Connect a T1/E1 WAN line to WAN port #1 through the 3096RC’s WAN port cable.
2. Connect a T1/E1 WAN line to WAN port #2 through the 3096RC’s WAN port cable.