SELENA
Multifunctional LED Clock
USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013
www.ledclocks.com
28
TO MORE SLAVES IN THE NETWORK
CLOCK WITH
OPTIONAL OPTO-REPEATER
( when required )
( option # 841 )
PC COMPUTER with RS232 or USB
serial port and with installed
PC2KERA driver S/W
( option # 721 )
MASTER CLOCK
( SELENA or Other )
GENERAL MASTER—SLAVE SYSTEM
WITH SELENA OR OTHER MASTER CLOCK, OR A PC USED AS THE MASTER.
RS485, RS232 OR OTHER SYNC COMMUNICATION WIRING AND
THE OPTIONAL OPTO-REPEATER MAY BE USED TO BOOST THE COMMUNICATION SIGNAL.
GPS
WWVB
INTERNET
GPS
WWVB
INTERNET
RS232 OR RS485
COMMUNICATION
88:88
88:88
88:88
88:88
88:88
88:88
88:88
O
P
T
IO
N
A
L
RS-232 (PC) to RS-485
CONVERTER may be necessary
( option # 901 )