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Connections – Westermo EDW-100 User Manual

Page 25

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25

6616-2203

LED indicators, also

integrated in the RJ-45

connector.

(for details see next page)

S2 DIP-switch

Termination

(for details see page 25)

S1 DIP-switch under lid

(for details see page 25)

Ethernet 1

RJ-45 connection

(for details see next page)

Connections

Power connection
screw terminal

RS-232 (DTE)

* Direction relative this unit

RS-422/485 interface
screw terminal

The EDW-100 supports redundant power
connection. The positive input are +VA and
+VB, the negative input for both supplies are
COM. The power is drawn from the input
with the highest voltage.

4-position Direction* Description

No. 1

In

R+
line RS-422

No. 2

In

R–
line RS-422

No. 3

In/Out

T+
line RS-422/485

No. 4

In/Out

T–
line RS-422/485

4-position

Description

No. 1

Common

No. 2

+VA

No. 3

+VB

No. 4

Common

9-position

Direction

Description

No. 1

N/C

Not connected (DCD)

No. 2

In

Received Data (RD)

No. 3

Out

Transmitted Data (TD)

No. 4

Out

Data Terminal Ready
(DTR)

No. 5

Signal Ground (SG)

No. 6

In

Data Set Ready (DSR)

No. 7

Out

Request To Send (RTS)

No. 8

In

Clear To Send (CTS)

No. 9

N/C

Not connected (RI)