User's Manual
Table Of Contents
- 1. SUMMARY
- 2. System Configuration
- 4. SET UP
- 4.1 System Set up
- 4.2 Troubleshooting
- 4.2.1 Necessary Testing and Measuring Equipment
- 4.2.2 Notice
- 4.2.3 Simple Troubleshooting Method
- 4.2.5 Troubleshooting Guide Related to LED
- Rectifier Module Red LED or Individual Faults
- Rectifier Voltage Fault
- MCA and FEU Fault
- MCU Fault
- 4.2.6 Troubleshooting Guide Related to RF
- 4.2.7 Troubleshooting Guide Related to NMS
User Manual
MCPA Outdoor System
14/19
.2 Troubleshooting
In case of abnormal operation, technician should diagnose abnormality via remote access or
directly connecting to MCPA using Ethernet cable. If technician is required to conduct repairs
due to major alarm, MCPA 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 MCPA,
GST will simply replace the unit and conduct repairs at the appropriate facility.
.2.1 Necessary Testing and Measuring Equipment
1) Power Attenuator: 30dB(1000Watt) 1EA, 20dB(25Watt) 1EA
2) Signal Generator: 3GHz
3) Spectrum Analyzer: 3GHz
4) Multi-Meter: 1EA
5) NoteBook: 1EA
.2.2 Notice
1) Troubleshooting should be performed by a trained technician.
2) Parts that seem to be not used should not be disassembled.
3) While troubleshooting, technician should use attenuator to check RF Signal output.
.2.3 Simple Troubleshooting Method
1) Verify LED Status
- 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) I f t echnician t hinks t here i s a s erious p roblem, c all a fter s ales t eam for o ver-the-phone
technical support. 1-866-9-GST-USA (1-866-947-8872)