INSTALLATION GUIDE FOR SR-1910
SR-1910 QI
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Page 37
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4.7 COMMISSIONING PROCEDURES
System commissioning can proceed for the Master Unit and Slave Unit after the monitoring system has
been initialized.
Commissioning Tasks
Observation
1. Set on-line and inquiry
status.
•
Activate the SR-1910 OMT main window. Select ‘Online’ to
access the equipment’s status. If there are alarms, check the
causes of failure and proceed to clear the alarm.
•
Set system and device ID, and other network parameters.
•
Decide if a group of Slave units are to be managed centrally, and
set up the respective site ID in the “Equipment ID” window when
the Master Unit is connected. The site ID of each Slave unit is
observed from the OMT screen when local commissioning of the
Salve unit is performed.
2. Test input power and align
donor antenna.
•
Select “RF Parameters”, and observe the DT port received signal
level. Align the donor antenna to maximize the DL input power
reading.
3. Check DL output power.
•
Set the DL gain to maximum and read the DL output power to
determine if design requirement is achieved.
•
If the output power is satisfactory and the equipment is operating
in ALC mode, then adjust either DL ATT to operate ALC within
1~3dB, or to the desired value according to the coverage
requirement.
4. Check UL output power.
•
Configure the UL ATT to be 3~5dB lower than the DL ATT.
•
Make test calls in the coverage area and adjust the UL gain to
achieve the best coverage and voice quality.
5. Test field strength of
coverage area and align
service antenna (if
applicable).
•
Test field strength with test mobile to verify coverage. If the field
strength is marginally insufficient and output power is at
maximum, then realign or raise the height of the mobile antenna.
(if applicable)
Table 12: Commissioning procedures
End of section
