13
RS-232 Cable Wiring (CAMINO-101)
The RS-232 cable supplied with CAMINO-101 contains 9 different wires. However, only 3 wires
are being used. This cable is a cross-over connection, not a straight thru connection. Refer to the
following wiring method when connecting to an external RS-232 device.
2.2.3.4 RS-232 Connector & Wiring (CAMINO-101A & CAMINO-101W)
The RS-232 connector pins on CAMINO-101A and CAMINO-101W models are different than
CAMINO-101 model.
On CAMINO-101A and CAMINO-101W, there are additional pin assignments at the RS-232
connector specifically for connecting to optional external Tx-off Switch Box. See also Tx-Off
Switch Box User Guide.
NO.
NAME
FUNCTION
1
/
/
2
RX
Receive Data
3
TX
Transmit Data
4
GND
I/O Ground
5
GND
RS-232 Ground
6
/
Tx-Off
7
/
Tx-Off LED
8
GND
RS-232 Ground
9
GND
I/O Ground
TXD: Data output
from CAMINO-101
RS-232 Ground
RXD: Data input
to CAMINO-101
I/O Ground
RS-232 Ground
I/O Ground
Reserved
Tx-Off LED
Tx-Off
Figure 2-2-3-4
RS-232 Pin definitions, CAMINO-101A / W
Table 2-2-3-4 RS-232 wiring details
RX
TX
GND
TX
RX
GND
CAMINO-101 RS-232
(DB-9 male)
PC RS-232
(DB-9 female)
Figure 2-2-3-3 Connecting to PC via RS-232
