Справочник Пользователя для Pelco FR85011

Скачать
Страница из 32
 
C1642M-A (1/05)
13
 
With the FT85011 transmitter/FR85011 receiver powered off, set the Data Selection switch to 
the required data communication using a small screwdriver. Refer to Table A for data commu-
nication switch settings. 
Note the following:
The FT85011 transmitter/FR85011 receiver allows data translation between RS-232 and 
RS-422 signal levels. Consequently, the Data Selection switch can be set to 0 (RS-232) 
on the transmitter and to 1 (RS-422) on the receiver. Conversely, the Data Selection 
switch can be set to 1 (RS-422) on the transmitter and to 0 (RS-232) on the receiver.
If you wish to change the data communication setting after the FT85011 transmitter/
FR85011 receiver has been powered on, power off the transmitter/receiver, change the 
data communication setting, and then power on the transmitter/receiver again.
 
MOUNTING
 
The FT85011 transmitter/FR85011 receiver can be mounted into a rack or can be used as a 
standalone module. As a standalone module, the unit can be placed on a desktop or can be 
mounted to a wall.
 
NOTE:  
 
As a matter of convenience, it is recommended that you set the desired data 
communication before mounting the FT85011 transmitter/FR85011 receiver. To set the 
desired data communication, refer to the 
 
 
 
Table A.  
 
Data Communication Switch Settings
 
Data Communication
Switch Setting
 
RS-232
0 (default setting)
RS-422
1
RS-485 2-Wire
2
RS-485 4-Wire
3
Manchester/Bi-Phase
4
Coaxitron
5
Not used
6-9
 
C1642M-A FT85011.book  Page 13  Wednesday, January 19, 2005  12:46 PM