Kera SELENA - Page 40

SELENA Multifunctional LED Clock USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013 www.ledclocks.com
40
2 CONDUCTOR CABLE
RS485 or RS232 OUTPUT
Communication Terminals
ZONE SLAVE
ZONE SLAVE
ZONE SLAVE
SELENA clocks assigned as ZONE Slaves
( with wired or wireless option series # 725 or # 724RS )
Observe the conductor polarity
while wiring to the Master and
Slave terminals
+ comm
- comm
R
E
D
B
L
A
C
K
RED
BLACK
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
ZONE SLAVE
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