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
52 D C U M a i n t e n a n c e & O p e r a t i o n M a n u a l
Troubleshooting
• Replace the backplane by reversing the removal procedure above. Be sure to
apply Loctite 290 to the screw threads before reattaching the backplane.
• Replace remaining circuit boards, power up DCU, and verify all circuit board
LED activity.