Specifications
Serial I/O Connections, 030 Module
Adept MV Controller User’s Guide, Rev C 63
Typical Cable Connections
For many applications, including connecting to a serial printer or terminal, 25-pin or 9-pin
adapter cables may be required. The next few tables give some examples. Because the
Adept MV controller uses the same connector and compatible pinouts as the IBM PC-AT
computer, suitable cables may be available from your local computer dealer.
• Table 5-3, “Pin Assignments for 9-Pin to 25-Pin (DCE) Cable”
• Table 5-4, “Pin Assignments for 9-Pin to 25-Pin (DTE) Cable”
• Table 5-5, “Pin Assignments for 9-pin to 25-pin (Wyse WY-60 Terminal) Cable”
• Table 5-6, “Pin Assignments for 9-pin to 9-pin (AT-Compatible) Cable”
• Table 5-7, “Typical 25-pin Null-Modem Adaptor Pinout”
Typical Cable Connections, 9-pin to 25-pin (DCE)
The following connections will work for many applications, including most modems and
other DCE (Data Circuit-terminating Equipment) devices. See next page for typical
connections to a terminal or other 25-pin DTE device.
a
Pins 1 and 9 are not connected inside the Adept MV Controller.
No connection is required, but if you are using a standard cable
that connects to these pins no damage should occur.
b
Pins 4, 6, 7, and 8 are used for “hardware handshake”, also
known as “modem control”. To enable them, use the
CONFIG_C
utility program, the V
+
FSET
program instruction, or the
FSET
monitor command. In some applications you can omit some or
all of these lines; consult the documentation for the device that
you are connecting to the Adept controller.
Table 5-3. Pin Assignments for 9-Pin to 25-Pin (DCE) Cable
030 RS-232
9-Pin Female
Pin Number Function
25-Pin Male
(DCE)
Pin Number
not used Shield 1
1 (CD carrier detect - not used)
a
8
2 RXD (from DCE device) 3
3TXD (to DCE device) 2
4DTR
b
(to DCE device) 20
5Signal ground 7
6DSR
b
(from DCE device) 6
7RTS
b
(to DCE device) 4
8CTS
b
(from DCE device) 5
9 (RI ring indicator - not used)
a
22
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