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B&B Electronics 485OPDR-HS - Quick Start Guide User Manual

Connections, Dip switches wiring example

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Connections

3

1

Terminal Block

Connectors

A – F

Terminal Block
Connectors
G – M

DIP Switches

1 – 8

DIP Switches

Wiring Example

Terminal

Block

Signal

A

OUT (+)

A-F Side

B

OUT (-)

C

Signal

Ground

D

Power

Ground

E

IN (+)

F

IN (-)

G

IN (+)

G-M Side

H

IN (-)

J

+10 to 30

VDC

K

OUT (+)

L

OUT (-)

M

Signal

Ground

2

Set DIP switches for RS-422, 2-Wire RS-485

or 4-Wire RS-485. The sample settings shown

below are for 2-Wire RS-485 half duplex

operation.

Switches 1, 2, 3, 4, 5 = ON

Switch 6 = OFF

Switches 7, 8 = Not Used

RS-485 Echo

Off

2W 2W

Bias

IN

Term

IN

Not

Used

Not

Used

Switch

1

2

3

4

5

6

7

8

Position

ON

ON

ON ON ON

ON

***

***

OFF

OFF

OFF OFF OFF

OFF

***

***

RS-422 Echo

On

4W 4W

Bias

OUT

Term

OUT

Not

Used

Not

Used

H

In -

G

In +

L

Out -

K

Out +

J

10-30

VDC

M

IGND1

Out -

B

Out +

A

In -

F

In +

E

GND

D

IGND2

C

2-Wire RS-485 System

TD/RD(A)-

TD/RD(B)+

GND/REF

Signal
Ground

POWER
SUPPLY

AC Power lines
or AC outlet
using plug

Cable is 2 twisted pairs

+ shield (not shown)

485OPDR-HS

.

.

.

.

-V NC +V
L N

Attention: Please follow proper ESD

protection procedures when configuring
this device.