On the Global and Max modems two dip switches are provided for the selection of the desired operating mode and two plug links are provided from the selection of 2 or 4 wire RS485 operation. A further DIP switch is provided on the Global modem for frequency Channel selection.

Switch Number

Function

 

 

1

Baud Rate (See Table)

 

 

2

Baud Rate (See Table)

 

 

3

8 or 9 bit data (Off = 8-bit, on = 9-bit)

 

( excluding 1 start and stop bit)

 

 

4

Spare

 

 

5

Spare

 

 

6

Spare

 

 

7

Spare

 

 

8

Test Mode ( Off = Run, on = Test mode)

 

 

Data Format Mode switch function SW1

Switch Number

 

Function

 

 

 

1

 

Spare

 

 

 

2

 

Spare

 

 

 

3

 

On = RS485 / RS422

 

 

 

4

 

On = RS232

 

 

 

 

Interface Mode switch SW2

Note: The Europa is fully electronically programmable. Europa users should consult the programming toll on the disk provided with the modem.

Mode SW1,1

Off

Mode SW1,2

Off

Data Rate

2400 bps

On

Off

4800 bps

Off

On

9600bps

On

On

19200bps

Date rate setting table subject to version constraints listed above.

Test mode is provided exclusively to assist installation. Whenever test mode is selected the modem will produce a test transmission to aid both antenna alignment and propagation tests. Effectively the modem transmits a string of data at your desired data rate. This data message usually " Radio-Tech RTcom Modem" can be used during commissioning to prove the link both with respect to the radio and cable paths.

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RTcom Radio Modems user manual Mode SW1,1