GE GEK-106273L Instruction Manual page 192

In this case, the modem initial configuration is set by changing the microswitches located in three sets on the bottom
of the units.
Set 1
Nº DESCRIPTIÓN
1 112 ETD/OFF
ON: Circuit 112 connected to ETD
OFF: Circuit 112 connected to ETD
2 112 ETD/ON
ON: 108 circuit forced to CLOSED.
OFF: 108 circuit follows ETD's 108 circuit
3 105 ETD/ON
ON: Circuit 105 forced to CLOSED.
OFF: Circuit 105 follows ETD's 105circuit
4 TXA/TXB in a peer-to-peer line (PP)
ON: In PP transfers through high channel.
OFF: In PP transfers through low channel.
5&6 Baud ate selection for data transfer
ON-ON 1200
OFF-ON 2400
ON-OFF Automatic.
OFF-OFF Automatic.
7&8 Automatic disconnection.
ON-ON No automatic disconnection.
OFF-ON Circuit 105.
ON-OFF Circuit 109.
OFF-OFF Circuits 105 and 109.
Set 2
No. DESCRIPTION
1 Synchronous format of protocol V25bis in option 108.2.
ON: Character oriented format (BSC).
OFF: Bit oriented format (HDLC).
2&3 Asynchronous character format for data transfer
ON-ON 8
OFF-ON 9
ON-OFF 10
OFF-OFF 11
4 Reception permission for remote loop 2
ON: Not permitted.
OFF: Permitted.
5&6 Exploitation mode.
ON-ON Point-to-point line
OFF-ON Automatic call as per 108.1.
ON-OFF RTC line without automatic call.
OFF-OFF Automatic call as per 108.2.
7 Number of calls for automatic answer
ON: 1 call.
OFF: 2 calls.
8 112 ETD/OFF
ON: Asynchronous operation.
OFF: Synchronous operation.
GEK-106273L
ANNEX 4 MODEM CONNECTION
LOCATION OF MODEM MICROSWITCHES ON THE PC SIDE
MIF Digital Feeder Protection
14.3.3. MODEM SATELSA MGD-2400-DHE (V.25BIS)
VALUE
ON
OFF
ON
OFF
ON-OFF
ON-OFF
VALUE
ON
ON-OFF
OFF
OFF-OFF
ON
ON
14-5