User Manual
Table Of Contents
- Contents
- List of Figures
- List of Tables
- List of Procedures
- Before You Begin
- CCU4 Collector Overview
- Installation Considerations
- Installing the CCU4 Collector
- Servicing the CCU4 Collector
- CCU4 Collector Specifications
- Troubleshooting
- Index
DRAFT
Chapter 4 - Servicing the CCU4 Collector 25
Chapter 4
Servicing the CCU4 Collector
Field Replaceable Parts
The following maintenance procedures are the only ones you can perform in the field:
• Replace an antenna
• Replace the battery pack
• Replace the collector
Each procedure is described on the following pages.
Replacing an Antenna
The POTS modem version has only one antenna, the RF antenna that attaches to the collector
bottom. The CDPD modem version has two antennas: the RF antenna on the bottom of the
collector and the CDPD antenna on the top.
Caution The two antennas differ in appearance and function. You can distinguish the
CDPD antenna from the RF antenna by the two additional knobs on the base of the CDPD
antenna. Be sure the new antenna is the same type as the one you are replacing. Installing
an antenna in the wrong place may damage the collector and will cause it to fail to work
as intended. Consult the following illustration to identify each antenna.
Required Hardware and Tools
You do not need special tools to replace an antenna.
To Replace an Antenna
1. Turn the antenna counter-clockwise and unscrew it from the N-connector on the
collector
.
2. Align the new antenna with the N-connector.