User's Guide

1-6 System description
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000
Interface cable pins
The interface cable pins connect:
• Up to four E1 lines (120 Ohm, balanced) or up to four DS1 lines (100 Ohm,
balanced)
• DC power
• alarm telemetry information
• two relays for summable and programmable alarms
• two dry-contact (Form-C) relay outputs that report on link performance
and critical alarms
Hand-held terminal interface
The Internet BWA System 3200 includes an optional wireless hand-held
terminal (HHT) that operates with batteries. The HHT communicates with the
Internet BWA System 3200 using an unlicensed 433.92 MHz channel.
To support this channel, both the HHT and the outdoor unit (ODU) have radio
433.92 MHz transceivers and matching whip antennas. You can use the HHT
to set and control, and to monitor the following features:
• receive signal strength indicator (RSSI) for antenna alignment
• Transmit Mute
• Transmit Modulation
• Transmitter Frequency
• Receiver Frequency
• radio frequency (RF) Filter Bandwidth
• bit error rate (BER)
• Link ID
• ODU Temperature
• Software Revision
• Fault Alarms