4.0 Back Panel
Page 6
AC POWER
The PPS-2RM-B is configured to operate on 100 to 240 VAC
DC POWER
If the instrument was acquired with the DC operation option a DC connector will be
available on the back panel. Operation on DC from +12 to +36 VDC will be possible as the
main power supply or as backup power in case of AC power outages when both, AC and
DC, are powering the instrument.
PPS 1 INPUTS
Ref -
Receives a sine-wave input signal of 1 MHz, 5 MHz or 10MHz. Power level must be
in the range of +3 to +13 dBm.
Ext. 1 PPS -
Receives a 1 PPS synchronization input. The 1PPS signal must conform
to TTL specifications.
PPS 1 SYNC
Enable -
When the switch is positioned to
“
Enable
”
selection, the 1 PPS output will have
the possibility to be synchronized to an external 1 PPS signal.
Warning!!!
After a
synchronization event this switch should be returned to the off or down position to prevent
accidental synchronization.
Trigger -
When synchronization is enabled and a 1 PPS signal is present on the Ext.
1 PPS input, the 1 PPS synchronization event can be triggered by the push button. Only
one synchronization will occur for each trigger.
Phase -
Selects the reference clock edge of the synchronization event. The 1 PPS will be
synchronized to the next reference clock rising edge after the incoming synchronization
PPS input when the switch is in the Enable position. When the switch is in the down
position, the 1 PPS will be synchronized to the reference clock falling edge that occurred
before the incoming synchronization PPS input.
Warning!!!
Toggling the Phase switch will
cause loss of synchronization.
PPS 1 OUTPUTS
1 and 2 -
Two 1 PPS outputs will be available at the SMA connectors labeled 1, 2.
