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 Superseded Technical Information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 Installation & Operation
4K7 resistor across D10.
Configure at least one
and no more than four
MX800 in this mode
when multiple units
connected.
Slave: Bussed mode. D10 fitted,
no resistor. Configure
balance of bussed units
in this mode.
3-4
JMP 25 Mute defeat enable. Mute defeat
cannot be used if RX TALK line
is required. To use mute defeat
remove JMP12 and fit JMP 25.
The control signal polarity can be
inverted by changing the position
of JMP25.
Active low control:
JMP25 2-3
Active high control:
JMP25 1-2
Disabled Not fitted
JMP 26 CTCSS output / TX VF Loopback
control
TX VF
Loopback
2-3
JMP 27 CTCSS input / WB DC-FM input WB DC-FM
input
2-3
Table 2-1 Micro Controller Jumpers
When the MX800 option card is not fitted there is no connection made to
SKK (Aux 2 connector) on the micro controller. Links should be placed
across SKK1-2 (Discriminator audio), SKK11-12 (TX supply) and SKK13-
14 (RX supply). These links are normally fitted in production.
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
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