CTD-N Technical Manual
P/N 95F-6000-00 (February 2017)
page 89
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
NOTE.
The original 4-pin bulkhead connector is replaced with a 6-pin bulkhead connector when the
CTD-N includes the External Sensor Interface, battery, or the End Cap Switch Kit. The optional End Cap
Switch Kit gives the user the ability to easily connect and disconnect the internal battery.
Table 10:
Test Cable Pin Out
CONNECTOR
PIN
RS-232
RS-485
DB-9
2
RXD
RS-485A
DB-9
3
TXD
RS-485B
DB-9
5
DATA GROUND
DATA GROUND
POWER JACK
Internal
+ POWER
+POWER
POWER JACK
External
GROUND
GROUND
Figure 47.
Test Cable Wiring
NOTE.
This test cable is used with both RS232 and RS485 systems. The RS485 systems use a converter
between the test cable power box and the computer.
TELEDYNE
RD INSTRUMENTS
NXIC SERIES
TEST CABLE
P/N C176-183
Computer
Side
Sensor
Side
1
2
3
4
FACE VIEW
1
2
4
3