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LTRx-512 Installation and User’s Guide
11
Step 3 – Setting Up the Master
If you will use the Master to sync clocks, you must first use relays #7 & #8 (terminal block P1) for
synching. If you have an LTR8-512 or LTR8-512M and will use a second clock type, you must use
relays #5 & #6 (terminal block P2) for those clocks
Bell Zone
#1
Bell Zone
#2
Bell Zone
#3
Bell Zone
#4
Bell Zone
#5
Bell Zone
#6
Bell Zone
#7
Bell Zone
#8
Relay #1 Relay #2 Relay #3 Relay #4 Relay #5 Relay #6 Relay #7 Relay #8
---Clock Sync #2--- ---Clock Sync #1---
Here are some suggested ways to program your Master’s relays:
• Eight (8) bell zones that can last from 1 second to 99 seconds. Use this setup if your
Master will not synchronize secondary clocks (other than DDCx-RS types).
• Six (6) bell zones and one electro-mechanical wall clock sync control. Use this setup if
your Master will sync only one type of clock in one string.
• Four (4) bell zones and two electro-mechanical wall clock sync controls. Use this setup if
you will synchronize two clock types, or if you have two strings of clocks (typically 20 to
35 clocks to a string).
The steps below lead you through getting the Master up and running.
3A - Enter the Password
The user password allows you to access user functions, but you must use the administrator password to
access advanced functions. You can change the user password, but you cannot change the administrator
password. To keep the administrator functions secure, only give this guide to authorized personnel. All
factory programmed passwords can be spelled out using the letters of a telephone keypad. For
example, the administrator password is 332537 or DEALER. Perform the following keypad entries to
enter the administrator password.
Step Press See on Display .
1 [#][0][#] PASSWORD 000000
2 [3][3][2][5][3][7] PASSWORD 332537
3 [#] ADMINISTRATOR
PASSWORD ACCEPTED
The display will return to the time and date after 3 seconds.
Note that if you stop using the keypad for over 5 minutes, you must re-enter your password
3B - Set the Date and Time