TSP Edge User’s Manual
40-400-00065, Rev. E
24
T1 Card Mode
Figure 16 shows the parameters on the T1 tab in the T1 card mode.
Figure 16. T1 Card Mode T1 Tab
Clock
The Clock needs to be set to where one end is providing timing (normally the PSTN)
while the other end is deriving clock from it (usually the CPE). The Internal clock
setting is used when the Edge acts as the PSTN and provides the clocking to the
equipment under test. External Clock is used when the Edge acts as the CPE and
clocks from the equipment under test (i.e., if the Edge is set for Internal clock, the
equipment under test should be set for External clock, and vice versa).
Note:
If using only one port on a Dual T1/E1 that is configured for External
Clock, port 2 must be used and will derive its clock from the equipment
under test. If using both ports, the device connected to Port 1 must use the
same clocking reference as the device connected to port 2.
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