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1MRS757105 B
2.2.2
2.2.3
2.3
RER601/603
Technical Manual
Console switch
The console switch enables or disables console access. When console access is
disabled, both serial ports may be used as an application serial port. When the
switch is in the right position, RS1 is in the serial port mode and when it is in the
left position, RS1 is in the console mode.
DIP switches
The DIP switches are used to select an application port mode (RS-2) and settings
(RS-232 or RS-485). By default, all are set to "0" when the port is in the RS-232
mode. DIP switches 2-4 apply only when the RS-485 mode is selected with DIP
switch 1.
Table 1:
DIP switches
Number
Function
1
RS-232/RS-485
2
HALF/FULL
3
BIAS
4
TERMINATION
Back panel
The IEC 60870-5-104 gateway has an antenna connector and a slot for a SIM card
on the back panel.
Do not insert or remove the SIM card while the GPRS module is in
operation. The SIM card contents may become corrupted if the card
is removed while the GPRS module is writing data to it.
RER601/603 overview
State
Description
"0" = RS-232
Selects the RS-port
"1" = RS-485
operation
"0" = full
Selects between half-
"1" = half
duplex (2-wire) and full
duplex (4-wire)
"0" = OFF
Turns RS-485 biasing
"1" = ON
on or off
"0" = OFF
Turns RS-485
"1" = ON
termination on or off
Section 2
9
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