SELENA
Multifunctional LED Clock
USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013
www.ledclocks.com
40
2
C
O
N
D
U
C
T
O
R
C
A
B
LE
RS485 or RS232 OUTPUT
Communication Terminals
Z
O
N
E
S
L
A
V
E
Z
O
N
E
S
L
A
V
E
Z
O
N
E
S
L
A
V
E
S
E
L
E
N
A
c
lo
ck
s
as
si
g
n
ed
a
s
Z
O
N
E
S
la
ve
s
(
w
it
h
w
ir
ed
o
r
w
ir
el
es
s
o
p
ti
o
n
s
er
ie
s
#
72
5
o
r
#
72
4R
S
)
Observe the conductor polarity
while wiring to the Master and
Slave terminals
+ comm
- comm
RE
D
BL
AC
K
RE
D
BL
AC
K
EXAMPLE OF A WIRED MULTI-ZONE SYSTEM WITH ZONE CLOCKS IN SEPARATE ENCLOSURES
GPS
WWVB
INTERNET
Optional
PC as MASTER
ZONE 1
ZONE 2
ZONE 3
ZONE 4
88:88
88:88
88:88
88:88
Z
O
N
E
S
L
A
V
E
ZONE N
88:88
TO MORE ZONES
IF NECESSARY
PC COMPUTER
With installed
PC2KERA driver S/W
( option # 721 )
RS232, RS485 or USB COMMUNICATION
RS-232/USB (PC) to RS-485 CONVERTER
may be necessary ( option # 901 )
NOTES:
1) For Multi-Zone Type “A” the
slave zones should have the
function Fn 34 and also function
Fn 50 enabled.
2)
For Multi-Zone Type “B” the
slave zones should have the
function Fn 34 and also func-
tions Fn 90 and / or Fn 91 en-
abled.
3) If a PC or other external refer-
ence is NOT used as the Master,
one of the zones may be as-
signed as the SUB-MASTER by
activating the function Fn 32.
NOTE: Similar configuration may be setup using any type of wire-less communication.
SELENA clock
assigned as one of the zones
or as the SUB-MASTER
