NPT-1020 Installation and Maintenance Manual
Commissioning Tests
ECI Telecom Ltd. Proprietary
6-4
The measured power levels:
Must be within the range of minimum and maximum levels specified in the
NPT Product Line General
Descriptio
n for the transceiver plug-in type installed on the corresponding port.
Must be within the expected range according to the optical network plan.
It is usually sufficient to measure the optical levels at the receive ports only. A good port-receive level
indicates that the components in the optical path up to that port are properly connected and operating
normally. If the result is not satisfactory, perform additional measurements at the transmit port in the
remote site.
6.2.4
Platform Power-On Test Procedure
To power on the NE:
1.
Perform slot assignments for all the relevant cards and modules in the platform.
2.
After 10 seconds, turn the platform circuit breaker off.
3.
After 30 seconds, turn the platform circuit breaker on.
The equipment should automatically return to normal operation, without user intervention and
without any abnormal alarms in the system.
6.3
SDH Commissioning Tests
These commissioning tests check that SDH functionality is in accordance with the system specifications.
6.3.1
Test Equipment Setup
The SDH tests are performed using a PDH analyzer, OPM, and variable attenuators. Configure the OPM
according to the measured wavelength.
The test conditions for the various interfaces are described in the following sections.
Table
6-4: 2 Mbps tests
Framing
Unframed
Coding
HDB3
Pattern
2 * 10-15 PRBS
Signal rate
2 Mbps
Timing
Internal clock
Inject error
Code error
Table
6-5: 34 Mbps tests
Framing
Unframed
Coding
HDB3
Pattern
2 * 10-15 PRBS