7 (12)
2.3.2 Serial Subnetwork Interface
Fig. 3
D-sub connector (DE-9F)
Pin
Description
RS-232
RS-422
RS-485
1
+5 V Output (100 mA max.)
x
x
x
2
RS-232 Rx
x
3
RS-232 Tx
x
4
(reserved)
5
Signal Ground
x
x
x
6
RS-422 Rx +
x
7
RS-422 Rx -
x
8
RS-485 + / RS-422 Tx +
x
x
9
RS-485 - / RS-422 Tx -
x
x
Housing
Shield
x
x
x
Do not connect Signal Ground to Protective Earth (PE) of other nodes on
the subnetwork as this may damage the on-board serial transceivers.
Connect it only to the Signal Ground on other nodes.
Bias and/or termination resistors may be required depending on the type of
serial network. Please refer to the User Manual for more information.
Anybus
®
Communicator
™
Startup Guide
SP2444 1.0 en-US