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Authorized Customer Use
4.1.Components List
1. Channeler (Dual Up/Down Converter for Uplink and Downlink Paths)
2. Place for wireless Modem Unit
3. Control Box (CB04) Includes status LED and RS232/P3 connector for the local
connection with a PC/ Laptop
4. Downlink Power Amplifier
5. Duplexer to Mobile Antenna (high power)
6. Duplexer to Base Antenna (low power)
7. Power Supply
8. Coupler for Modem Antenna (for future remote connection).
9. Door Alarm Switch
10. Repeater Monitor Card (Includes Summarized Alarm LED)
11. Uplink Power Amplifier
4.1.1.Components Description
The following is a description of the main components of the Repeater.
4.1.2.Channeler
The Channeler Module consists of dual Radio Frequency (RF) Up/Down Converter sub-
modules for Downlink and Uplink paths. The Channeler amplifies the received RF
signals and converts them into an intermediate frequency (IF). The IF outputs are
connected to a SAW Filter. The IF outputs are converted back to the original RF
frequencies. The Channeler also has controllable attenuators (32 dB range in steps of
1dB)and a pre-amplifier for each path.
4.1.3. Repeater Monitor Module
The Monitor Module measures the current of the following elements of the Repeater:
Up/Down Converter, Uplink Power Amplifier, and Power Supply. It also senses the
Downlink output power. If a module fails, an appropriate report is sent to the Control
Box and the Summarized alarm red LED lights up.
8
Release 1.00
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