Lathem LTR-512 ユーザーズマニュアル
LTRx-512 Installer’s Guide
1
Welcome
This Installer’s Guide covers three different Master Clocks. The LTR4-512, the LTR8-512
and the LTR8-512M. All three units are installed and programmed in similar fashions. The main
difference between the three units is the LTR4-512 has 4 circuits that can be programmed to ring
bells or activate circuits for up to 99 seconds and/or synchronize the time on two types of clock
systems (any clock systems types listed in Appendix B, plus RS-485 time sync devices). The
LTR8-512 and LTR8-512M have 8 circuits that can be programmed to ring bells or activate
circuits for up to 99 seconds and/or synchronize the time on three types of clock systems (any two
clock system types listed in Appendix B, plus RS-485 time sync devices). You can program up to
512 events to activate a single or multiple circuits on a given day and time. The LTR8-512 and
LTR8-512M can also connect to a PC running Microsoft Windows using the optional LTR
MasterLink software. The LTR8-512M has a built in Modem capable of communicating with the
PC or for synchronizing with the NIST Atomic Clock.
Unless otherwise specified, LTRx-512 refers to all units. Information that applies to specific
units will be noted.
units will be noted.
The list below describes the functions that you can set for this Master:
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Passwords
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Date and time
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Clock types to sync
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Manual bell control (example: sounding a fire alarm)
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Bell schedules (with events lasting up to 99 seconds)
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Dates when automatic schedule changes go into effect
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Manual circuit disabling (example: for safety during maintenance)
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Daylight savings time features
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Instant bell schedule changes
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Instant clock synchronization
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Holiday schedules
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Communications when using the LTR MasterLink software with your Master, an RS-485
network or modem access (LTR8-512 and LTR8-512M only)
network or modem access (LTR8-512 and LTR8-512M only)