SELENA
Multifunctional LED Clock
USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013
www.ledclocks.com
34
MASTER—SLAVE SYSTEM WITH RF ( RADIO ) COMMUNICATION
using SELENA with INTERNAL RF MODEM AS THE MASTER.
GPS
WWVB
INTERNET
RS232 OR RS485
COMMUNICATION
FIRST SLAVE CLOCK
WITH RF ( RADIO ) MODEM
AND RS232 OR RS485 INPUT
( Option # 725RF and # 725
or # 725232 )
SLAVE CLOCKS
WITH INTERNAL RF ( RADIO ) MODEMS
( option # 725RF )
88:88
88:88
88:88
88:88
OPTIONAL
JU
M
P
E
R
R
S
23
2
O
R
R
S
48
5
FR
O
M
G
P
S
,W
W
V
B
O
R
E
TH
E
R
N
E
T
SYNC USING THE CLOCK
AS THE MASTER
AND BROADCASTER
SYNC USING GPS
WWVB OR ETHERNET
AND THE CLOCK
AS BROADCASTER
RXIN
RS D.IN
RFTX IN
TXOP
RFRX OUT
RS D.OUT
RXIN
RS D.IN
RFTX IN
TXOP
RFRX OUT
RS D.OUT
JU
M
P
E
R
S
TXD
RXD
GND
NOTE:
NOT ALL TERMINALS AND SIGNALS MAY BE
AVAILABLE IN ALL MODELS OR CONFIGURATIONS.
OTHER SYNC WIRING MODES ARE POSSIBLE.
