RS-232 Cables and Connector Options
49
DB-9 Connectors
Four and eight-port boards can be configured with male or female DB-9 connec-
tors (DTE wiring only).
DB-9 connectors are available only in the “fan-out” cable configuration (see
Figure 27, on page 46).
Table 8
DB-9 Quad and Octa Cable Options and Part Numbers
DB-9 Male
DB-9 Female
DTE Quad
7600003
7600001
DTE Octa
7600015
7600013
Table 9
DB-9 Connector Pin Assignments
Signal
Description
Direction
Pin #
GND
Chassis Ground
N/A
Shell
DCD
Data Carrier Detect
Input
1
RxD
Received Data
Input
2
TxD
Transmitted Data
Output
3
DTR
Data Terminal Ready
Output
4
SG
Signal Ground
reference
5
DSR
Data Set Ready
Input
6
RTS
Request to Send
Output
7
CTS
Clear to Send
Input
8
RI
Ring Indicator
Input
9
