Black Box IC132C Manual page 18

Signal
GND Ground
TD Transmit Data
RTS Request To Send
DTR Data Terminal Ready
RD Receive Data
CTS Clear To Send
DSR Data Set Ready
DCD Data Carrier Detect
RI Ring Indicator
Refer to the above chart if your RS-232 device has a DB9 connector. Use
a DB9-to-DB25 adapter with your device to adapt it to the cable's DB25
port. Call Technical Support for details.
Table 5-2. DB9 (EIA-574 DTE).
Name
NOTE
CHAPTER 5: Technical Description
Pin #
5
3
7
4
2
8
6
1
9
Mode
—
Output
Output
Output
Input
Input
Input
Input
Input
17