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 Superseded Technical Information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
MX800 Transceiver General Description
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
6
1.1.1 Rear Panel
Figure 1-3 below and Table 1-2 Details the functions of each connector.
Connector # Conn Type Function Description
CN5 3 PIN DC Power input 13.8 Volt DC power input. Also +28 Volt
input on spare pin if required.
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 an 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 Spare Knockout provision for RJ45 connector.
CN3 DB25-F Parallel I/O Provides one 8 bit input port. One parallel 8
bit BCD or Binary channel select input and
one 8-bit output port.
CN1 DB15-F Line I/O Provides the necessary analog receiver and
transmitter interface for system interfacing.
CN4 DB9-M RS-232 serial port 9600 Baud serial port for frequency
programming, channel selection and alarm and
status monitoring.
CN2 DB9-F Monitor port Provision for special monitoring of certain
internal signals.
Table 1-2 Rear Panel Connections
Figure 1-3 MX800 Rear Panel
Thermally
Controlled Fan
CN8 N-Type
TX Out
p
ut
CN7 BNC Rx Input
or External Ref In
p
ut
CN6 Simplex
Relay Output or
N-Type Rx Input
When fitted
CN5 DC
wer InPo
p
ut
CN2
Monito
r
CN4
RS232
CN1 Line
I/O
CN3
Di
g
ital I/O
CN9 RJ45
When fitted