User Manual

Repeater User Manual
SmartCell Repeater
30
4.4. Troubleshooting
In case of abnormal operation, technician should diagnose abnormality via remote access
or directly connecting to repeater using Ethernet cable. If technician is required to conduct
repairs due to major alarm, repeater should first be powered off, and then technician
should prepare the proper measurement equipment before trying to fix the problem. In
most cases of major repairs, GST will simply replace the unit and conduct repairs at the
appropriate facility.
4.4.1. Simple Troubleshooting Method
1) Verify LED Status, both on external LED’s as well as internal module LED’s
- Normal operation: Green light on. Alarming: Red LED on.
2) Technician should check external and internal connectors to ensure that all
connections are tightly secure. These connectors should be cleaned regularly.
3) If technician thinks there is a serious problem, call after sales team for over-the-phone
technical support. 1-866-9-GST-USA (1-866-947-8872)
4.4.2. Alarm Information
Alarm
Name
What causes this
alarm
Troubleshooting Methods
Downlink
Spurious
emissions
out of spec
Downlink Output
Power exceeds
Downlink Upper Limit
* The Downlink Output Power should not exceed the
maximum composite power spec for this unit.
* If the Downlink Output Power is not exceeding the
composite power spec for this unit, try to increase the
Downlink Upper Limit on the RF Configuration Page.
* Add equal amounts of Uplink and Downlink
attenuation until the Downlink Output Power is less
than the Downlink Upper Limit.
* Set the ALC Downlink Limit on the RF Configuration
Page to a value lower than the Downlink Upper Limit
Downlink Downlink path gain is * By default, if the Downlink Low Output Variance is