46
AXIS 221 - The I/O Units Connectors
Schematic Diagram - Power Terminal Block and Power Connectors
The D-Sub Connector
The
AXIS 221 provides
one 9-pin D-sub connector, providing the physical interface for an
RS-232 port, used for connecting accessory equipment.
A diagram of the RS-232 connector, complete with pin assignment table, is shown below.
Pin
Function
1
CD
2
- RXD
3
- TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
3
2
o
o
Mode
Power
Supply
3.3V
z
z
z
z
z
z
z
z
z
z
o
o
Internal
~
Switch
o
z
GND
AC
1
AC/DC+
GND/DC-
=
+
-
Axis Power Supply
PS-K 9V max 9W or
according to parts list
5
4
3
2
1
6
7
8
9
