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Phason 

Installing the RS485-FD Converter 

25048008 

 

Connecting the communication and common reference wiring 

1.

 

Connect all the devices in series. For example, 

A

 on the RS485-FD to 

A

 on the first device, to 

A

 

on the second device, and so on. Use the wires specified in the table on page 2 and follow the 

guidelines on page 3. 

2.

 

Remove the termination resistors from each device, 

except for the last one on the communication 

channel

. The last device 

must

 have the termination resistors in place. For the location of the 

termination resistors, see the installation guide for each specific product. 

 

 

 

For controls having only four-position connectors, it is a good idea to leave the 

communication cable one foot longer than is needed for connecting to the 

terminals (

A

B

C

, and 

D

). You can then use the extra length of wire to connect 

to a reference point on the circuit board in place of the 

E

 terminal.  

 

For information about which terminal to use in place of the 

E

 terminal, see the 

user manual for the specific device, or contact Phason Customer Support. 

 

 

Connecting the RS485-FD to the computer 

After connecting the communication 
and common reference wiring to all the 

devices, connect the RS485-FD to the 
computer. 

1.

 

Plug the communication connector 
into the communication socket on 

the RS485-FD. 

2.

 

Connect the square end of the USB 

cable to the RS485-FD and the 
rectangular end directly to one of 

your computer’s USB ports. 

 

 

 

 

Because of the RS485-FD power requirements, if you are using a USB hub, it 

must be one that has an external power supply,

 not one powered from the 

computer's USB port

.  

 

If this is the first time you have connected the RS485-FD to the computer, your 

operating system will tell you that it has detected new hardware and ask to 

install the drivers. Read the next section before installing the drivers. 

 

 

Содержание RS485-FD

Страница 1: ...the Phason software on your computer to communicate with the devices along a communication channel A communication channel is a continuous line of cable connecting all devices in the series in other...

Страница 2: ...computer 3 Installing the software drivers on the computer Communication cable requirements The following types of cable are acceptable Phason does not recommend other types of wire Unshielded twiste...

Страница 3: ...gory 5 CAT5 You can use either unshielded twisted pair UTP or shielded twisted pair STP cable Phason does not recommend other types of wire There are additional guidelines to follow when using STP cab...

Страница 4: ...other models must be removed using wire cutters For more information about the location of termination resistors see the installation guide for your specific product If you remove the termination resi...

Страница 5: ...f wire to connect to a reference point on the circuit board in place of the E terminal For information about which terminal to use in place of the E terminal see the user manual for the specific devic...

Страница 6: ...m the USB stick 5 When installation has finished connect the RS485 FD to one of your computer s USB ports To manually start driver installation open My Computer or Windows Explorer Browse the USB stic...

Страница 7: ...from temporary high voltage conditions caused by electrical interference power surges and lightning strikes Transient voltages also known as surges or spikes can travel through low voltage data signa...

Страница 8: ...Phone 204 233 1400 Fax 204 233 3252 Phason Inc 2 Terracon Place Winnipeg Manitoba Canada R2J 4G7 E mail support phason ca Web site www phason ca...

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