Table 6-3: Db9M Accessory Cable Rs-232 Pin Assignment - Access 104i-COM-8SM User Manual

Cable accessories are available to provide interface to the 40-Pin headers on this board,
connecting to a 40 pin screw terminal board, a DB37 for panel or enclosure mounting (an
external / system cable is optionally available to mate with that DB37 and breaks it out to
four DB9M's) or to four DB9M connectors.
DB-9 Male Pin for
each of Ch A-H
Ch x - 1
Ch x - 2
Ch x - 3
Ch x - 4
Ch x - 5
Ch x - 6
Ch x - 7
Ch x - 8
Ch x - 9

Table 6-3: DB9M Accessory Cable RS-232 Pin Assignment

DB-9 Male Pin for
each of Ch A-H
Ch x - 2
Ch x - 4
Ch x - 5
Ch x - 7
Ch x - 8
Table 6-4: DB9M Accessory Cable RS-422 Pin Assignment
DB-9 Male Pin for
each of Ch A-H
Ch x - 2
Ch x - 4
Ch x - 5
Table 6-5: DB9M Accessory Cable RS-485 Pin Assignment
DB9 Male
RS-232 Signals
(DTE Standard)
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
RS-422 Signals
TX+
RX+
GND
TX-
RX-
RS-485
Signals (2 Wire)
TX/RX +
TX/RX -
GND
17
RS-232 Signal
Descriptions
Data Carrier Detected
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request To Send
Clear to Send
Ring Indicator
RS-422 Signal
Descriptions
Transmit Data +
Receive Data +
Signal Ground
Transmit Data -
Receive Data -
RS-485 Signal
Descriptions
Transmit / Receive +
Transmit / Receive -
Signal Ground
Manual 104i-COM-8SM