User's Manual

Table Of Contents

Technical Manual Installation & Operation

2.3 Operation

The MX800 can operate in local control mode via the front panel controls,

stand alone repeater mode, or may be remotely controlled through the line

port. Setting up the MX800 to operate in the wanted mode is straightforward

and involves four main steps.

1. Using the MX800 programming utility 'MXTOOLS' to set the software

configurable parameters.

2. Setting the hardware jumpers on the Micro Controller for the required

options.

3. Adjusting the levels where necessary.

4. Making the necessary electrical connections to the radio and your

system.

Note that generally if the requirements have been fully specified at time of

purchase steps 1 to 3 will already have been done at the factory. In the

following sections the hardware aspects of the set up procedure are described.

2.3.1 MXTOOLS Utility

MXTOOLS is a programming utility used to program channel data, configure

and perform remote diagnostics on the MX800. It runs on a PC compatible

computer and the MXTOOLS Inbuilt help menus cover use of the program.

2.3.1.1 MX800 Networking

See New Option T31 & T34 also.

At sites where more than one MX800 is located it is possible to "bus" the

RS232 lines to allow up to 16 MX800s at one site to be addressed on a single

RS232 port. Hardware facilities provided on the MX800 Micro controller

card provide isolation between transmit ports. When MX800s are bussed in

this way JMP24 in each radio must be set so that

1. At least one radio and no more than four are set as masters.

2. All other radios are set as slaves.

Refer to Table 2-1, in section 2.3.2.1 for details.

In addition to this, each radio must be assigned a unique address. This

address is assigned as a binary code through CN3. Four address lines are

available on input port A where bit 4 is the LSB and bit 7 is the MSB. These

lines should be pulled high or low depending upon the setting of JMP19.

Default is active low so that GND = Logic 1, Refer section 2.2.2.5.

The RS232 cable should be made up such that all MX800 transmit ports

(TXD) are common and connected to the PC receive port (RXD) and all

MX800 receive ports (RXD) are common and connected to the PC transmit

port (TXD).