1 power, 4 rs-485, 2 profibus dp – Westermo FD-20 User Manual
Page 11: 3 rs-232 (dte)
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11
6630-2220
6.2.1 Power
2-pos screw terminal
Direction
Description
No. 1In
0 VDC (–)
No. 2
In
+12 to +48 VDC (+)
6.2.4 RS-485
2-pos Detachable screw terminal
Direction
Description
No. 1In/Out
Transmit/Receive T/R+ (T+)
No. 2
In/Out
Transmit/Receive T/R– (T–)
6.2.2 PROFIBUS DP
9-pos D-sub
Direction
Description
No. 1–
–
No. 3
–
–
No. 3
In/Out
RxD/TxD-P
No. 4
Out
CNTR-P
No. 5
–
DGND
No. 6
Out
VP
No. 7
–
–
No. 8
In/Out
RxD/TxD-N
No. 9
–
DGND
6.2.3 RS-232 (DTE)
9-pos D-sub
Direction
Description
No. 1–
–
No. 2
In
Receive Data (RD)
No. 3
Out
Transmit Data (TD)
No. 4
Out
Data Terminal Ready (DTR)
No. 5
–
Signal ground (SG)
No. 6
–
–
No. 7
Out
Request To Send (RTS)
No. 8
In
Clear To Send (CTS)
No. 9
–
–
1
2
1
2
5
4
3
2
1
9
8
7
6
1
2
3
4
5
6
7
8
9
Female
Male
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