16
6620-2200
Connections
Position Direction* Description
Product marking
No 1
In
R+ (A’) Receive
RS-422/485 4-wire R+
No 2
In
R– (B’) Receive
RS-422/485 4-wire R–
No 3
In/Out
T+ (A) Transmit
RS-422/485 4-wire
T/R+
Out
T+ (A/A’)
Transmit/Receive
RS-485 2-wire
No 4
Out
T– (B) Transmit
RS-422/485 4-wire
T/R–
In/Out
T+ (A/A’)
Transmit/Receive
RS-485 2-wire
LED Indicators
(for details
see page 18)
DIP-switches accessible under lid
(for details see page 20–23)
DIP-switch S5
RS-422/485 termination
(for details see page 23)
Position Direction* Description
Product marking
1
In
AC: Neutral
DC: – Voltage
COM
2
In
AC: Line
DC: + Voltage
+VA
Summary of Contents for IDW-90
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