Quantum and Evolution Series Installation and Operating Handbook
8-9
Description:
Allows a high stability reference signal to be transferred across satellite.
If the user selects
Off
then the internal data rate clock generated by the modem is
locked to the modem’s internal high stability clock reference. This is the same as the
original internal clock mode of operation.
However, if the user selects
T1/E1
then the internal data rate clock generated by the
modem is locked to the T1/E1 timing signal applied to the G703 interface.
NOTE: this mode is only accessible when the user selects internal clock and the selected
Terrestrial interface is NOT G703
Rx Operation
This is a special case of
Satellite clock
. When the user selects
Satellite clock
and
the
selected terrestrial interface is
not
G703 the user is asked a further question:
Generate a G703 clock reference from satellite clock?
Options:
OFF
E1
T1
Factory default:
OFF
Description:
Allows a high stability reference signal to be proogated over satellite.
Any selection on this screen will result in the generated Rx clock for the Rx data path
being requested at the Rx data rate and being locked to the satellite signal.
However, if the user selects
T1/E1
then the modem will
also
generate an Alt1/0 timing
reference signal at either T1 or E1 on the appropriate G703 port.
Note that this mode is only accessible when the user selects satellite clock and the selected
Terrestrial interface is NOT G703 (T1 is not available when EIA530 mode is used as the same
physical connector is required for T1 balanced operation).
Please refer to Paradise application note 002 (available from the Paradise web site)
for further information.
