Openpath Core Series - Page 10

Openpath Core Series

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





WIRING

OPENPATH

READERS



Openpath

Readers

and

ACUs

communicate

via

RS-485.

The

following

wire

types

are



compatible,

listed

in

the

order

of

preference

which

impacts

distance.





●

Shielded

CAT6A

(recommended,

additional

two

pairs

can

be

used

for

sensors)



●

Shielded

CAT6



●

Shielded

RS485

w/22-24AWG

(lower

gauge,

thicker

wire

is

better)



●

Shielded

CAT5



●

Unshielded

CAT6



●

Unshielded

CAT5



●

Shielded

22/6



●

Unshielded

22/6





Ideally,

use

one

twisted

pair

for

GND

and

VIN

(power)

and

one

twisted

pair

for

+B

and



-A

(data).





Recommended

maximum

cable

length

:

300

ft

(91

m)

with

CAT6

or

500

ft

(152

m)

if



two

wire

pairs

are

used

for

GND

and

VIN

(power).





For

shielded

wiring:

Connect

one

side

of

the

drain

wire

(the

shield

around

the

wires)



to

the

GND

terminal

on

the

ACU.

Both

the

shield

and

the

GND

wire

can

share

the



same

GND

terminal.

Do

not

connect

the

other

side

of

the

shield

to

anything.





For

standard

reader

installation

:

We

recommend

that

you

install

a

1-Gang

20

CU



box

in

order

to

flush-mount

the

reader.

Alternatively,

the

reader

may

also

be

surface



mounted

with

the

included

back

plate.





Note:

For

elevators,

all

relays

and

readers

must

be

connected

to

the

same

ACU.

If

you



need

more

than

four

access

controlled

floors

or

readers,

add

the

Openpath

Elevator



Expansion

Module.

See

WIRING

THE

OPENPATH

ELEVATOR

BOARD

.





WARNING:

Always

remove

power

from

the

Smart

Hub

and

locking

hardware

when



wiring

readers

and

other

devices.

Failure

to

do

so

can

damage

the

ACU.









 



Version 1.8 

© Openpath 2020 

Page 10 

