MTX-IND-V2 Industrial Featured GSM-GPRS terminal modem http://www.matrix.es
MTX-IND-V2 User Manual V.1.1
Page. 21
Subject to change without prior notice
RS-232 (By default)
-----------------------
JPC1
-> JP 1-2 Open
-> JP 3-4 Open
-> JP 5-6 Close
-> JP 7-8 Close
JPC3
-> JP 1-2 Open
RS-485
. open bus
(2 Wires)
---------------------
JPC1
-> JP 1-2 Open (No Res)
-> JP 3-4 Open
-> JP 5-6 Open
-> JP 7-8 Open
JPC3
-> JP 1-2 Close
RS-485
. Bus ended with 120 ohm resistor
(2 Wires)
---------------------
JPC1
-> JP 1-2 Close (Res 120)
-> JP 3-4 Open
-> JP 5-6 Open
-> JP 7-8 Open
JPC3
-> JP 1-2 Close
RS-422
open bus and
RS485
4 Wires
---------------------
JPC1
-> JP 1-2 Open (No Res)
-> JP 3-4 Open (No Res)
-> JP 5-6 Close
-> JP 7-8 Open
JPC3
-> JP 1-2 Close
RS-422
bus ended with 120 ohm resistor (4 wires)
---------------------
JPC1
-> JP 1-2 Close (Res 120)
-> JP 3-4 Close (Res 120)
-> JP 5-6 Close
-> JP 7-8 Open
JPC3
-> JP 1-2 Close
