Contents XPS/XPS-E User's Manual
30 COMSOFT
5.2.3 Connector Assignment RS422/485 (XPS-E only)
The connection is realised via a 9-pin D-SUB plug.
Pin Signal Function Direction
1 I(B) Indicate (-) I
2 R(A) Receive Data (+) I
3 T(A) Transmit Data (+) O
4 T(B) Transmit Data (-) O
5 G Ground ---
6 R(B) Receive data (-) I
7 C(A) Control (+) O
8 I(A) Indicate (+) I
9 C(B) Control (-) O
Table 13: Connector Assignment RS422/485 Interface
O = Output
I = Input
5.2.4 Cabling RS422 without Hardware Handshake
XPS/XPS-E End Device
Assignment Assignment
9pol 15pol
Pin Signal Signal Pin
3 T(A) R(B) 11
4 T(B) R(A) 4
2 R(A) T(B) 9
6 R(B) T(A) 2
5 GND GND 8
Figure 14: RS422 Cabling with Hardware Handshake
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