20
Valcom, Inc.
5614 Hollins Road
Roanoke, VA 24019
USA
P. 540-563-2000
F. 540-362-9800
www.valcom.com
If your master clock is set to receive data through wires from another device as its primary time input, the
wires must be attached to the proper ports on the master clock. The diagram below shows the locations
and the functions of each port.
Inputs and Outputs - Sync-Wire
Consult the wiring diagrams on the following pages for information on how to install wiring specific to
your synchronization method. Relevant port numbers will be listed with each diagram.
IMPORTANT: Your master clock will only accept input from another device if you command it to do so
through the web interface or front panel pushbuttons. For information on how to do this, please see the
section labeled
Web Interface - Synchronization
Outputs
27 26 25 24 23 22
Clock 1
Sync Relay
Clock 2
Sync Relay
N
or
m
al
ly
O
pe
n
N
or
m
al
ly
O
pe
n
N
orm
al
ly
C
lo
se
d
N
orm
al
ly
C
lo
se
d
N
or
m
al
ly
C
om
m
on
Re
la
y C
om
m
on
17 16 15 14 13 12 11 10 9 8 7
Sync Inputs
V Out
40ma
A
C
/D
C
C
om
m
on
Duc
an
e Re
se
t
A
la
rm
C
om
m
on
24
VAC
Sy
nc
A
la
rm
12
V
D
C
/2
4V
A
C
5V
D
C D
ry C
on
ta
ct
+5
V
D
C
D
uka
ne
M
in
. P
ul
se
C
om
m
om
12
0V
AC
Sy
nc
1R
au
lan
d D
igi
tal
