User's Manual
Table Of Contents
- 1. General Description
- 2. Installation and Operation
- 3. Options
- 3.1 T01 Programmable Channel Spacing
- 3.2 T02 Programmable CTCSS encoder/decoder
- 3.3 T03 Programmable DCS/CTCSS encoder/decoder
- 3.4 T05 Balanced and Isolated VF plus E&M
- 3.5 T06 Simplex Changeover Relay
- 3.6 T08 VF Delay
- 3.7 T09 300Hz Upgrade HPF Filter
- 3.8 T10 Power Save Mode
- 3.9 T11 Combined Options
- 3.10 T12 External Reference Oscillator Input
- 3.11 T13 Local Speaker, Mic Socket and Front Panel Mute
- 3.12 T14 Local Channel Change
- 3.13 T16 1PPM Frequency Stability
- 3.14 U69 Extended Temperature Range Verification
- 3.15 T19/26 Line Interface Board.
- 3.16 T29 Balanced and Isolated VF plus E&M
- 3.17 T31 Network Adapter
- 3.18 T34 Ethernet option
- 3.19 T36 Option - TX Ref Oscillator input and Modulator
- 6. MX800 Base Station Fault Finding Procedure
- 7. Appendices
- 7.1 MX800 Interface Connections
- 7.2 CN2 DB9 Female Monitor Connector
- 7.3 CN3 DB25 Female Digital I/O Connector
- 7.4 MX800 Specifications
- 7.5 Channel Select DIP Switch Settings
- 7.6 MX800 Model Number Configuration Guide
- 7.7 MX800 System Applications
- 7.7.1 Conventional base station/repeater
- 7.7.2 Link transceiver
- 7.7.3 Data transceiver
- 7.7.4 Paging transmitter
- 7.7.5 Trunking Base Station
- 7.7.6 Systems base
- 7.7.7 Repeater with Morse ID
- 7.7.8 Simplex base station
- 7.7.9 Duplicated base station
- 7.7.10 Power Save base station
- 7.7.11 Tone key base station
- 7.7.12 Voting base station
- 7.7.13 Simulcast base station
- 8. Superseded Technical Information
- 9. Drawings
Technical Manual
7. Appendices
7.1 MX800 Interface Connections
The user connections to the MX800 are all made via the rear panel where the
following connectors are located.
No Conn Type Function Description
CN1 DB15-F Line I/O Provides the necessary analog receiver and
transmitter interface for system
interfacing.
CN2 DB9-F Monitor port Provision for monitoring status certain
internal signals
CN3 DB25-F Parallel I/O Provides two 8 bit input ports, where one
is used as the parallel BCD channel select.
Also one 8-bit output port.
CN4 DB9-M RS-232 serial
port
9600 Baud serial port for frequency
programming, channel selection and alarm
and status monitoring.
CN5 3 PIN DC Power
input
13.8 Volt DC power input. Also +28 Volt
input on spare pin.
CN6 N TYPE Simplex relay
out or N type
RX input
Location for internal simplex relay. The
antenna for RX / TX connects to this
point. Alternatively a N-Type connector
can be used for the input to the receiver for
full duplex operation
CN7 BNC RX input Standard BNC connector for the input to
the receiver for full duplex operation.
CN8 N TYPE TX output The RF power output from the transmitter
for full duplex operation.
CN9 RJ45 Optional Bal
line I/O
Optional balanced and isolated Line TX
and RX VF and isolated E & M signals
Table 7-1 MX800 Interface Connectors
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
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