Download LED Clocks - KERA Technologies

SELENA Multifunctional LED Clock
USER MANUAL V.27
GPS
WWVB
INTERNET
OPTIONAL
PC COMPUTER with RS232 or USB
serial port and with installed
PC2KERA driver S/W
( option # 721 )
RS232, USB or RS485
COMMUNICATION
POWER LINE
RS-232 (PC) to RS-485
CONVERTER may be
necessary
( option # 901 )
PLC
88:88
88:88
88:88
SLAVE CLOCKS
WITH INTERNAL POWER LINE MODEMS
( option # 724RS )
1, 2 or 3 PHASE EXTERNAL
POWER LINE MODEM
WITH RS232 OR RS485 INPUT
( option # 724XRS )
TO MORE SLAVES IN THE NETWORK
MASTER—SLAVE SYSTEM WITH COMMUNICATION over the POWER LINE WIRING
using EXTERNAL PLC MODEM and a PC AS THE MASTER.
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KERA TECHNOLOGIES INC. 2010
www.ledclocks.com