Frequently Asked - Valcom V-D11025A Installation And Programming Manual

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Frequently Asked Questions
Can the V-D11025A or V-D11040A digital clock be used as an independent clock?
Yes, the clock is capable of being used as an independent, slave, master or chronograph clock.
Some clocks require a 9 volt battery backup for timekeeping. What happens to the V-D11025A or V-D11040A if a power failure occurs?
The V-D11025A or V-D11040A come equipped with a 10 year battery backup. Upon restoration of power, the clock immediately corrects itself from
its built-in time base. This occurs within seconds of "power-up". Some clocks which do require a 9 volt battery backup risk having the battery
die during extended shut downs. Each individual clock must then be opened in order to replace the battery. Since the V-D11025A or V-D11040A
includes a 10 year battery backup, the clock never needs to be opened.
What happens to the V-D11025A or V-D11040A system if its input is lost?
Since the V-D11025A or V-D11040A digital clock is able to act as a master clock, if the communication input is lost to the V-D11025A or V-D11040A,
the clock will continue to run on its own. The V-D11025A or V-D11040A will also continue sending communication to any clocks down the line that
it is connected to.
How do I take advantage of the V-D11025A or V-D11040A chronograph functions?
The Valcom Control Box controls all chronograph functions of the V-D11025A or V-D11040A.
HH:MM or MM:SS, and the readout can count up from 00:00:00 to 99:59:59 or count down with a programmable starting point from 99:59:59 to
00:00:00, with interrupt and resume capabilities.
How many clocks can be run on the same communication line? What is the maximum distance between clocks on the communication
line?
Each V-D11025A or V-D11040A digital clock has a RS485 input and an output port. Each output port can drive up to 32 clocks in parallel, however
daisy chaining is the recommended wiring configuration. When using a daisy chain method of communication you can run an unlimited number of
clocks on the same communication line by connecting the clocks to each other individually where each clock drives the next clock in line. When
using a daisy chain wiring configuration, the maximum distance between each clock can be up to 3,000 feet. When an output drives more than
one clock in parallel, the combined length of all the lines emanating from one clock can not exceed 3,000 feet.
How can I display "BELL" text on the clock?
"BELL" displays can be programmed by V-WMCA master clocks.
Valcom, Inc.
5614 Hollins Road
Roanoke, VA 24019
The display can be programmed to show either
540-563-2000 P.
540-362-9800 F.
www.valcom.com
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