SELENA
Multifunctional LED Clock
USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013
www.ledclocks.com
30
TO MORE SLAVES IN THE NETWORK
MASTER—SLAVE SYSTEM WITH COMMUNICATION over the POWER LINE WIRING
using SELENA WITH INTERNAL PLC MODEM AND A PC AS THE MASTER.
GPS
WWVB
INTERNET
RS232, USB or RS485
COMMUNICATION
RS-232 (PC) to RS-485
CONVERTER may be
necessary
( option # 901 )
FIRST SLAVE CLOCK
WITH POWER LINE MODEM
AND RS232 OR RS485 INPUT
( Option # 724RS and # 725
or # 725232 )
S
L
A
V
E
C
L
O
C
K
S
W
IT
H
IN
T
E
R
N
A
L
P
O
W
E
R
L
IN
E
M
O
D
E
M
S
(
o
p
ti
o
n
#
7
24
R
S
)
POWER LINE
RXIN
RS D.IN
PLC IN
TXOP
PLC OUT
RS D.OUT
JU
M
P
E
R
S
R
S
23
2
O
R
R
S
48
5
FR
O
M
P
C
SYNC USING PC
AS THE MASTER
AND BROADCASTER
SYNC USING PC
AS THE MASTER
AND THE CLOCK
AS BROADCASTER
88:88
88:88
88:88
88:88
OPTIONAL
PC COMPUTER with RS232 or USB
serial port and with installed
PC2KERA driver S/W
( option # 721 )
TXD
RXD
GND
RXIN
RS D.IN
PLC IN
TXOP
PLC OUT
RS D.OUT
JU
M
P
E
R
S
R
S
23
2
O
R
R
S
48
5
FR
O
M
P
C
TXD
RXD
GND
SYNC USING
PLC MODEM FOR
CLOCK AS SLAVE OR
AS THE MASTER
RXIN
RS D.IN
PLC IN
TXOP
PLC OUT
RS D.OUT
JU
M
P
E
R
S
R
S
23
2
O
R
R
S
48
5
FR
O
M
P
C
TXD
RXD
GND
NOTE:
NOT ALL TERMINALS AND SIGNALS MAY BE
AVAILABLE IN ALL MODELS OR CONFIGURATIONS.
OTHER SYNC WIRING MODES ARE POSSIBLE.
