10. TERMINATING RESISTANCE AND ID ADDRESS SETTINGS

The ID address of the RS-485 and the terminating resistance can be set by using the switches Nos. 1 through 9 of the DIP Switch (10) located on the bottom of the Main Unit.

 

 

 

 

 

 

 

Switch No.

 

 

Function

 

 

1 – 8

 

 

Sets the ID address.

 

 

 

 

 

 

 

 

9

 

 

Turns ON/OFF the terminating resistance

 

 

 

 

 

 

 

 

10

 

 

None

 

 

 

 

 

 

 

[1] Setting the terminating resistance

The terminating resistance is built in each Camera, and it can be turned ON/OFF by using the pin No. 9 of the DIP Switch (10) of each Camera. To prevent the attenuation of the signal, turn ON the terminating resistances of the 2 Cameras located at both ends of the longest route, of all cameras to be connected to the RS-485 interface, and turn OFF the terminating resistances of the other Cameras.

DIP Switch (10)

1

2

3

4

5

6

7

8

9

10

OFF

SETTINGS OF ID ADDRESS

TERMINATING RESISTANCE

DIP Switch (10)

BASE OF MAIN UNIT

[2] Setting the ID address

The ID address for communication of the RS-485 can be set by using the switches No. 1 through 8 of the DIP Switch (10). (Refer to "Setting the ID address" table - P26, 27)

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Elmo PTC-200C instruction manual Setting the terminating resistance, Setting the ID address

PTC-200C specifications

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