BCBZ Series Zone Clock Installation Manual
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50 Spring Street, P.O. Box 575, Ramsey, New Jersey 07446 Tel: 201-934-8500, Fax: 201-934-9832, Web Site: www.bogen.com
Can the BCBZ series digital clock be used as an independent clock?
No, the BCBZ zone clock requires communication input and must be used with one of the Sapling Master
Clocks, the BCSM Master Clock, the BCBD 2000 or the BCGPS.
What protocols can be run on the BCBZ series digital zone clock?
The BCBZ series zone clock can use a 2 wire digital communication system or RS485 protocol can be
utilized. Please refer to system information for wiring diagrams.
How many clocks can be run on the same communication line using an RS485 protocol? What is
the maximum distance between clocks on the communication line?
Each BCBZ 1000 digital clock has an input and an output port. Each output port can drive up to 32 clocks
in parallel. When using a daisy chain method of communication (see drawing in the RS485 system infor-
mation) 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 emanat-
ing 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 dis-
play "FirE", a 3000 series master clock must be used which receives a signal from an existing alarm sys-
tem.
What happens if voltage on the power line drops from 24 VAC (24 volt model) to a lower voltage?
The clock will still function, and will maintain the same level of brightness. However, the current con-
sumption will increase proportionately to the decrease in voltage.
Frequently Asked Questions
