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Atlas Bio Series Access Control Panels Installation Guide

DIP Switch

RS485 Terminal Resistance

Address Switch Settings Address Switch Settings

1 5

2 6

3 7

4 8

Important Notes

1. There are six DIP switches on the back of

FR1500A, Switches 1-4 are for RS485 address,

Switch 5 is reserved, Switch 6 is to suppress

noise on long RS485 cable.

2. Set odd numbers for IN reader, and even

numbers for OUT reader (for e.g. Two readers

for one door- the RS485 address 1 is for IN

reader, RS485 address 2 is for OUT reader)

3. If FR1500A is powered from Atlas-460 panel,

the length of wire should be less than 100

meters or 330 ft.

4. The External RS485 interface can

supply a maximum of 500mA current,

The FR1500A startup current is 240mA. So

Atlas-460 can only power two FR1500A.

5. If the cable length is more than 200 meters

or 600 ft , the number 6 switch should be ON

as shown below:

Distance: More than 200 meters

6.6.1 DIP Switch Setting for FR1500A

ZKTeco Atlas Bio Series User Manual

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