Technical Manual
Table Of Contents
- Table of Contents
- Product Specifications
- Warnings, Cautions, and Notes
- Introduction
- Commissioning
- Tools Required
- Connect to the Main Board
- Commission the DCU
- Installer Commands
- Global Commands
- Administrator Commands (for an LTE Backhaul)
- Alarm Menu
- Manufacturing Menu
- MTU Menu
- Transceiver Menu
- Records Menu
- Power Supply Debug Menu
- Transceiver Debug Menu
- Advanced Menu
- Global Navigation Satellite System (GNSS) Menu
- Maintenance
- Troubleshooting
- Testing the DCU
- Local Menu “WALL” Command Information
- DCU-Generated Headend Messages
- Index
Chapter 6 • Troubleshooting
D C U M a i n t e n a n c e a n d O p e r a t i o n M a n u a l 49
Antenna
• Check the exterior condition/connection of the 4G LTE cellular/GPS
antenna.
Transceiver Board (T-Board)
• Verify the cabling at the gold connectors is hand tight.
• Check the LED activity lights, and use the following image and table for
reference.
D4
D9
D3
D2