The Sapling Company, Inc.
1633 Republic Road
Huntingdon Valley, PA 19006
215.322.6063 P.
215.322.8498 F.
www.sapling-inc.com
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Frequently Asked Questions
Can the SBD 1000 digital clock be used as an independent clock?
No, the SBD 1000 requires a communication input and must be used with either a Sapling master clock or a SBD 2000.
Some clocks require a 9 volt battery backup for timekeeping. What happens to the SBD 1000 if a power failure occurs?
Upon restoration of power, the SBD 1000 immediately receives a correction signal from the master clock and resets itself to display the correct
time. This occurs within seconds of “power-up”, so no battery backup is required for a timekeeping base within the individual clocks. Since the
SBD 1000 does not require a battery backup, the clock never needs to be opened.
How can I interface the SBD 1000 with Rauland, Dukane and other systems?
The SMA 2000 or 3000 Master Clock or the SBD 2000 digital clock can be used as an interface between other systems and SBD 1000 clocks.
How many clocks can be run on the same communication line using a RS485 protocol? What is the maximum distance between clocks
on the communication line?
Each SBD 1000 digital clock has a RS485 input and an output. Each output port can drive up to 32 clocks in parallel. 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 method of connection for communication, 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” and “FirE” on the clock?
“BELL” displays can be programmed by either the Sapling 2000 or 3000 Series master clocks. To display “FirE”, a SMA 3000 Series master clock
must be used, which receives a signal from an existing alarm system.
What happens if voltage on the power line drops from 24 VAC to lower voltage?
The clock will still function, and will maintain the same level of brightness. However, the current consumption will increase proportionally to the
decrease in voltage.
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