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6.
Powering up and testing the installation
NOTE
The minimum System Releases for compatibility with PTP-SYNC are 600-08-04
(PTP 600) and 500-04-00 (PTP 500). Upgrade the software as necessary.
Powering up
To power up the installation, proceed as follows:
1
Ensure that all cables are connected to the correct interfaces of the PTP-SYNC
unit and the GPS receiver (if used). Ensure that the installation is correctly
grounded.
CAUTION
Failure to do so may result in damage to the equipment.
2
Connect the power supply to the PIDU.
3
Within 90 seconds, the PTP-SYNC 'STATUS' LED should blink once every second
to show that satellite lock has been achieved.
4
If the system does not operate correctly, refer to the fault finding guide below.
Fault finding guide
Refer to
2 PTP-SYNC interface description
LEDs do not illuminate
Ensure that there is a cable connection between the PIDU 'ODU' interface and the
'PIDU IN' interface of the PTP-SYNC unit.
The 'STATUS' LED does not blink
This probably indicates that a 1PPS synchronization pulse is not detected by the PTP-
SYNC unit (no satellite lock).
Depending on system configuration, take one of the following actions:
•
System using a GPS receiver module - Ensure that there is a cable connection
between the PTP-SYNC 'GPS/SYNC IN' interface and the LPU, also that there is a
cable connection between the LPU and the GPS receiver module. Check that the
GPS receiver module has an uninterrupted view of the sky.
•
System using an alternative 1PPS timing source - Ensure that there is a cable
connection between the PTP-SYNC 'GPS/SYNC IN' or '1PPS IN' interface and the
1PPS timing source.
•
On cluster slave units – Ensure that there is a cable connection between the slave
GPS/SYNC IN interface and the SYNC OUT interface of the preceding unit in the
chain.
phn-1613_008v000 (Jun 2011)
PTP-SYNC Installation Guide
for descriptions of the PTP-SYNC LEDs.
Page 21
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