Sanyo VCC-6974 RS-485 terminal connections, Connection to a VCR, Connection to a multiplexer

CONNECTIONS

CAMERA IN terminal

ALARM input

G

RS485

A

control

terminal

B

terminal

ALARM IN

9

10

11

12

13

14

15

16

C 1

2

3

4

5

6

7

8

9 10 11 12 13 1415 16

SENSOR ALARM

C A B C AL C R1 R2 C SW C

VCR

MONITOR

RS485

OUT

CONTROL

1

2

IN

OUT

A

B

Multiplexer

Monitor

POWER

RS485

GND

ON

B

12V DC IN

A B

System controller

Timelapse VCR

Before making any connection, make sure all the peripheral devices are turned off.

Multiple units are connected in series using twisted-pair cables (bridge connection). To set the addresses and make other fine adjustments, please refer to page 57.

RS-485 terminal connections

Connect a shielded twisted-pair cable (AWG22) from signal A to signal A, and from signal B to signal B of the RS485 control terminal of each of the devices.

•Connection to a VCR

Make the connection between the RS485 (A, B, G) terminal on this unit and the VCR RS485 A and B terminals and the C terminal.

•Connection to a multiplexer

Make the connection between the RS485 (A, B, G) terminal on this unit and the multiplexer control terminals (A, B, C).

G B A

	Shielded twisted-pair cable
Push in to insert cable	To A signal
	To B signal
	Ground

English 11