Honeywell VCU-04 Manual Do Utilizador

39

There is a DIP switch (include two bits) in the circle. It is used for 

selecting RS-485 matched distance mode.
The Voyager equipment supports biasing and end-of-line termination for 

the RS-485 network. 

a. RS-485 allows the wiring of a multidrop communication 

network of up to 1200 m in length. SW1 DIP switches Pin1, 
Pin2 set in ON position.

b. RS-485 Port communication network should not exceed 15 

m in length. SW1 DIP switches PIN1, PIN2 set in OFF 
position.

Figure 26 Jumpers

SW1.1&2

ON

Long distance - up to 1200m

OFF

Short distance - up to 15m