CTD-ES and CTD-ER Technical Manual
95F-6001-00 (February 2017)
page 51
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Bulkhead Connector Wiring
Refer to Table 4 for the required connections from the bulkhead connector to the computer,
and to Table 5 for the connections from the connector to the power supply. Figure 23 shows the
bulkhead connector pin orientation as viewed from the face.
Figure 23.
Bulkhead Connector—Face View Female
Table 4:
Computer Connections
Bulkhead Connector
Computer DB9 Connector
PIN
COLOR
LABEL
FUNCTION
PIN
LABEL
FUNCTION
1
Black
GND
Ground
5
GND
Ground
2
White
RXD/RS-485A
Received Data
3
TXD/RS-485B
Transmitted Data
4
Green
TXD/RS-485B
Transmitted
Data
2
RXD/RS-485A
Received Data
Table 5:
Power Supply Connections
Bulkhead Connector
Power Supply
PIN
COLOR
LABEL
FUNCTION
1
Black
GND
Ground
Ground
3
Red
Power(+)
Instrument Power
6–14 VDC