Westermo IDW-90 - Manual (Page 16)

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