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
8 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
Safety Guidelines
possible however, with a ladder, a bucket truck, or by climbing the tower or pole,
for a workman to find themselves near an antenna which is not labeled. These
individuals are not expected to spend a long period of time near the antenna.
Some DCU designs have an optional RF-disable switch (usually mounted under
the DCU chassis) that allow the technician to stop any 450 MHZ radio
transmissions. This lock out/tag out option should be exercised when any
personnel plan to be near an operational antenna.
ESD Caution
Wear suitable ESD protective gear such as grounding straps when servicing
equipment.
Replacement Parts
Incorrect repair parts may result in equipment damage or create an unsafe
condition.
Use appropriate replacement fuses and other components when installing and
repairing the equipment.
Rooftop-Specific Hazards
In addition to the hazards listed above, rooftops pose a special hazard with regard
to roof collapse.
Overloaded roofs can collapse. Heavy snow loads and earthquakes can add to the
weight of the installation to stress roof supports and cause them to fail.
Furthermore, every building is different - both in its construction and its
maintenance. It is critically important that the building for which the installation is
planned be studied by a civil engineer and certified for the additional load the
installation will bring. It is also important that the building be inspected for
structural damage prior to installation.
Inspect Antenna Clearance
If another system’s antenna has been installed near the Aclara antennas, it could
cause interference with, or possibly even damage to, the Aclara receiver. A
portable spectrum analyzer may be used to determine the power at a given location
at that moment in time. If the other system is found to occasionally transmit RF
energy, it may be necessary to relocate the Aclara or other system's antenna. Refer
to the DCU Installation Guide for instructions on antenna mounting.