Kera SELENA - Page 27

SELENA Multifunctional LED Clock USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013 www.ledclocks.com
27
RS-485
COMMUNICATION CABLE
( 2 COND. )
SHIELDING OPTIONAL
TO MORE SLAVES
RS-232 (PC) to RS-485
CONVERTER
( option # 901 )
PC
WITH RS-232 or USB PORT
AND INSTALLED
“PC2KERA” DRIVER S/W
( option # 721 )
+ TX
GND
- TX
Optional
shield
+ comm
- comm
UP TO 64 SLAVES
Or Optional up to 400 clocks
RS-232
COMMUNICATION CABLE
( 2 COND. ONLY )
SHIELDING OPTIONAL
RS-232 or USB (PC)
SERIAL PORT
PC
WITH RS-232 or USB PORT
AND INSTALLED
“PC2KERA” DRIVER S/W
( option # 721 )
RX
GND
PC USED AS THE MASTER
WITH TWISTED PAIR ( RS-485 ) SYNC COMMUNICATION WIRING ALLOWING FOR LARGE NUMBER OF SLAVES
OVER LONG WIRING DISTANCES.
PC USED AS THE MASTER
WITH SERIAL RS-232 SYNC COMMUNICATION WIRING ALLOWING FOR SMALL NUMBER OF SLAVES
OVER SHORT OR MEDIUM WIRING DISTANCES.
88:88
88:88
88:88
88:88
88:88
TO MORE SLAVES
Observe the conductor polarity
while wiring to the terminals
Observe the conductor polarity
while wiring to the terminals