CTD-N Technical Manual
P/N 95F-6000-00 (February 2017)
page 17
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Figure 8.
CTD-N Setup with B176-207 Battery Adapter Cable
Connecting to the RS-485 Interface
A CTD-N with an RS-485 interface is shown set up with a laptop computer in Figure 9.
To connect a CTD-N with an RS-485 interface to your computer:
1. Disconnect the dummy connector from the bulkhead connector on the instrument.
2. Connect the test cable to the bulkhead connector on the instrument and to the RS-485 con-
nector of the RS-485/RS-232 converter.
For those customers who order an RS485-RS232 converter from us, we ship a B&B
Electronics Model 4WSD9R, which is a powered converter also capable of
RS422/RS232 conversion that is configured with four dip switches.
RS-422
- RS-485
Echo On
- Echo Off
4 Wire
- 2 Wire
4 Wire
- 2 Wire
To work properly with our test setup, the dip switches should be set to:
RS-485
Echo Off
2 Wire
2 Wire
3. Connect the RS-232 connector of the RS-485/RS-232 converter to the serial port on your
computer.
4. Connect the power supply to the POWER connector on the test cable.