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Product Information
3
AXC-232 RS-232/422/485 Card
Enabling RS-485 Mode
Set internal jumper JP2 in the ON position to enable RS-485 mode, as shown in FIG. 2.
Card Edge Pinouts
Preparing captive wires
1.
Strip 0.25 inch of wire insulation off all wires.
2.
Insert each wire into the appropriate opening on the connector according to the wiring
diagrams and connector types described in this section.
3.
Tighten the screws to secure the wire. Do not tighten the screws excessively; doing so may
strip the threads and damage the connector.
FIG. 3
JP2 Internal Jumper (232/485 mode)
Card Edge Pinouts
Pin
Signal
Function
1
GND
Ground (RS-232)
2
RX
Receive data (RS-232)
3
TX
Transmit data (RS-232)
4
+12V
Power
5
RX -
Receive data (RS-422)
6
RX +
Receive data (RS-422)
7
TX -
Transmit data (RS-422)
8
TX +
Transmit data (RS-422)
9
GND
Ground
10
CTS
Hardware handshaking - Clear-to-send
11
RTS
Hardware handshaking - Ready-to-send
12 - 16
Factory Use
JP2
(232 mode)
OFF
ON
JP2
OFF
ON
(485 mode)
If the device is using a separate power supply, do not connect the power wiring from
the AXC-232 to that device.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GND
RX
TX
+12 V
RX
RX+
TX-
TX+
GND
CTS
RTS
RS-232
RS-422
Hardware Handshaking