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 Superseded Technical Information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 Options
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
37
Refer circuit diagram CS022-1
3.10.2 Installation
Components Required:
1. Option board ‘MXOPT’ fitted for Power Save Mode. Qty-1
2. 16way female-to-female IDC Cable Assy. Qty-1
3. 3x20mm Standoff posts. Qty-4
Test Equipment Required:
1. Communications Test Set
2. MX800 Radio Interface Box
Method:
1. Remove the cover to the MX800 radio.
2. Remove the Motherboard from the MX800 radio.
3. Remove IC’s 21 and 27 from the Motherboard.
4. Reinstall the Motherboard into the MX800 radio and using the qty 4
3x20mm standoff posts in the positions indicated below:
5. Remove the Link jumpers off connector SKK.
6. Install the Option Printed Circuit Board onto the 4 standoffs with the
16way connector closest to DIP2 on the Motherboard. Secure with the
qty4 3x5mm machine screws previously removed.
7. Install the 16way-ribbon cable between connector SKK on the
Motherboard and SKK on the Option board, taking note that the cable is
correctly orientated.
8. Check that the option board jumpers are in the following positions;
1. JMP1 OUT
Motherboard
3x5mm machine
screws to be removed