8400-M022-O1 Rev K
Model 190 Indicator
10
Serial and I/O Cable Installation
1.
Loosen the 4 Captive screws securing the rear housing to the front housing assembly and
then loosen a gland connector for the serial cable. Refer to Figure No. 2 for an illustration of
the connector layout.
2.
Slip the serial cable through the gland connector and into the enclosure.
3.
Remove 3" of the outer insulation jacket then remove 1/4" of insulation from each of the
wires (refer to Figure No. 3).
4.
Remove the 9-connector terminal block connector from P3 on the 190 mainboard. Grasp the
terminal block connector and lift straight up away from the board.
5.
Referring to the table below and the labels on the circuit board for terminal connections,
connect each wire to the terminal block.
6.
To terminate a wire, loosen the screws in the terminal block and then insert the wire into the
terminal opening. Tighten the screw to secure the wire in place.
7.
Repeat the procedure until all wires are in place.
8.
After all terminations have been made, remove the excess cable from the enclosure.
P3 I/O Connections (Refer to Figure No. 6)
SERIAL INTERFACE
INPUT/OUTPUTS
P3 Board Label
Function
P3 Board Label
Function
TXD
Transmit
IN1
Input 1
RXD
Receive
OUT1
Output 1
GND
Ground
OUT2
Output 2
+9-24 DC
9V DC to 24V DC
OUT3
Output 3
COMMON
Common
P2 Power Connections (Refer to Figure No. 6)
P2 Board Label
Function
+9V
9V DC
GND
Ground
CHGND
Chassis Ground
+BAT
+ (Plus) Battery
-BAT
- (Negative) Battery
Figure No. 6
P3
P2
P2
Power
P3
I/O