User Daily Maintenance Proposal. Transmission equipment is critical for the system, so the special person who has been trained should be assigned to perform daily maintenance, страница 2

External condition

Power supply of the equipment room (DC/AC)

View the monitoring system of power supply or test the output voltage of power supply

The voltage output is normal and no abnormal alarm is found in power supply

Equipment room environment

Cleanliness

See below

See below

Temperature

Test the temperature

Temperature range: 0 ⁰C~45 ⁰C

Humidity

Test relative humidity

Relative humidity: 20%~90%

Equipment running conditions

Indicating lamps on the top of cabinet

Observe the indicating lamps on the top of cabinet

Under normal conditions, only green indicating lamp is normally On.

Board indicating lamps

Observe the indicating lamps of respective boards

Under normal conditions, only green indicating lamp flashes 1s On /1s Off

Equipment fan

Observe the fan indicating lamp and the running condition of the fan

The fan indicating lamp is On, the ventilation of the fan is normal

Surface temperature of equipment

Test the surface temperature of equipment

Not exceed 45 ⁰C

Orderwire phone

Test the conversation condition

Call by addressing and conference telephone can communicate normally

NM maintenance items

Logging into NM

Log into NM as lower level user

NM can be logged into normally

Checking NE states

Log into respective NEs from NM and view the states

All NEs can be logged into and they are in running state

Checking board states

Observe boards in position and in service conditions from the board position diagram of NM

The boards in the board position diagram should be in position and in service

Checking alarms

Through the alarm querying and browsing functions of NM, view current and history alarms

There is no unknown alarm in the system

Monitoring performance events

Through the performance data querying function of NM, view current and history performance data

There is no abnormal performance, the optical power is not changed obviously

Querying operation log and system log

Use the operation log and system log querying functions of NM

No illegal operation

Analyzing optical spectrum

Analyze main channel through MS2

The optical power is normal

Checking equipment environment variable

From NM, check the temperature and voltage alarms of PMU board and check its temperature performance data

No temperature and voltage alarms; temperature performance data are normal

Querying NE time

[Configuration/NE Date and Time] menus

The time is correct, all NEs time is consistent.

Analyzing optical spectrum

Analyzing the optical spectrum of MON port

Analyze the optical spectrum of the output signal of MON port

The optical power and SNR (signal-to-noise ratio) are both normal