Page 2 - Copyright © 2010 Lathem Time Corporation. All rights reserved.
Lathem, the Lathem logo, LTR4-512, LTR8-512, LTR8-512M, Radio Sync, LTR MasterLink, Terminal Manager and PayClock are registered trademarks of Lathem Time Corporation. Other product names mentioned in this manual may be trademarks of their respective companies and are hereby acknowledged. WARNING: C...
Page 3 - Table of Contents
Table of Contents Welcome ..........................................................................................................1 Step 1 - Mounting the Master .................................................................................2 S URFACE M OUNT .........................................
Page 4 - LTRx-512 Installation and User’s Guide; Welcome; and the
LTRx-512 Installation and User’s Guide 1 Welcome Thank you for purchasing your new MASTER CLOCK. You can use your new Master to ring bells or turn on circuits for up to 99 seconds, as well as to synchronize the time on secondary wall clocks or devices. This manual covers 3 models of MASTER clocks: t...
Page 5 - Step 1 - Mounting the Master; Power Supply Box
LTRx-512 Installation and User’s Guide 2 Step 1 - Mounting the Master The Master comes ready to surface mount on the wall. However, you can also install the Master in a standard 19" rack, recess the power supply into the wall or hide the power supply in the floor or ceiling and hang only the dis...
Page 8 - Rack Mount
LTRx-512 Installation and User’s Guide 5 Rack Mount The LTR8-512 and LTR8-512M come with two L-shaped brackets (optional on the LTR4-512) so you can install your Master in a standard 19-inch rack To install the Master in a 19-inch rack 1. Place the Master on its back with the display unit facing up ...
Page 9 - Hidden Power Supply Mount
LTRx-512 Installation and User’s Guide 6 10. Remove the two screws from the side of the display unit 11. Using these same screws, attach an “L” bracket (or ear) 12. Repeat to attach the other ear 13. Mount the unit in the rack 14. Follow the wiring steps in the next chapter before attaching the box ...
Page 11 - Step 2 – Wiring the Master; Until you complete this part of the wiring, do not turn on
LTRx-512 Installation and User’s Guide 8 Step 2 – Wiring the Master Wire the display panel and power relay units for bell control and clock synchronization. Refer to the diagrams in Appendix C2 for more details. Until you complete this part of the wiring, do not turn on the AC power to P4, and keep ...
Page 16 - C - Enable the Relays
LTRx-512 Installation and User’s Guide 13 If you enter a time less than 13:00 (1:00 PM), then you will see SELECT [0] PM / [1] AM Press [0] for PM or [1] for AM. If you choose ‘PM’, then the time will display in 24-hour format to confirm your entry Press the [#] key at the top (‘00’ seconds) of the ...
Page 17 - D - Choose Clock Types; NN
LTRx-512 Installation and User’s Guide 14 3D - Choose Clock Types If you will use the Master to synchronize electro-mechanical wall clocks (analog or digital), then use Function [2] to choose the clock type for Clock #1 and/or Clock #2, following the instructions below. Clock Control Codes can be fo...
Page 18 - E - Test Bell Circuits; to start this function; F – Set Daylight Savings
LTRx-512 Installation and User’s Guide 15 3E - Test Bell Circuits Manual Bell Control Use Manual Bell Control Function [3] (described on Pg. 20 to test selected bell circuits . Press [#][3][#] to start this function Auto Test the Bells Use the Auto Bell Test feature to turn on all bell relays once p...
Page 19 - G – Setup Communication; Display
LTRx-512 Installation and User’s Guide 16 3G – Setup Communication The “factory default” communication settings (LTR8-512 and LTR8-512M only) are: Baud Rate: 9600 Terminal ID#: 065 Use Function [B] (described on Pg. 30) if you if you need to change these settings for MasterLink configurations involv...
Page 20 - Additional Functions:
LTRx-512 Installation and User’s Guide 17 Additional Functions: All of the Master’s functions are described in the next section of this guide. Remaining steps, which may be performed “as needed” by the Installer or User, include the following: Function Number Programming Operation . 0 Enter Password...
Page 21 - Function Descriptions; Starts the Programming Functions and Confirms Entries; Program Keys
LTRx-512 Installation and User’s Guide 18 Function Descriptions [#] Starts the Programming Functions and Confirms Entries [*] Ends Program functions and/or Cancels Entries (except the “Quick Check”) Quick Check Commands Quick Check commands display system information for about 2 seconds. You can pre...
Page 26 - The following will show on the display:
LTRx-512 Installation and User’s Guide 23 The following will show on the display: For Firmware version 4.05 and earlier: For Firmware version 4.06 and later: To select the appropriate mode: Press [1] DATA ENTRY to create a new schedule Press [2] DATA SCAN to view a schedule Press [3] DATA EDIT to ch...
Page 31 - DATA ENTRY
LTRx-512 Installation and User’s Guide 28 [A]=Program Holidays You can enter up to 16 dates as holidays in your LTRx-512. During holidays, only the events that you set to occur on holidays will turn on when they reach the scheduled time. Examples: 1) Select S mtwtf SH for an event to occur on S unda...
Page 33 - APPENDIX A - SPECIFICATIONS; plus
LTRx-512 Installation and User’s Guide Daylight Savings Codes 30 APPENDIX A - SPECIFICATIONS ELECTRICAL: Input Voltage 120 or 220 / 240 VAC @ 60Hz or 50Hz Input Power 50 VA max (less than 0.5A @ 120V) Memory / Quartz Time Backup 10 year (nom.) Lithium Battery Bell / Clock Control Relays 120VAC / 28V...
Page 34 - APPENDIX B – DAYLIGHT SAVINGS COUNTRY CODES
LTRx-512 Installation and User’s Guide Daylight Savings Codes 31 APPENDIX B – DAYLIGHT SAVINGS COUNTRY CODES ALBANIA 02 ENGLAND 01 MALTA 02 ANDORRA 02 ESTONIA 02 MONACO 02 ARMENIA 02 FALKLAND ISLANDS 10 NETHERLANDS 02 AUSTRIA 02 FINLAND 02 NEW ZEALAND 11 AZERBJAN 02 FRANCE 02 NORWAY 02 AZORES 02 GER...
Page 35 - APPENDIX C1 - SECONDARY CLOCK TYPE CODES; Type Description
LTRx-512 Installation and User’s Guide Secondary Clock Types 32 APPENDIX C1 - SECONDARY CLOCK TYPE CODES Type Description Page 01 SYNCHRONOUS WIRED 33 01 LATHEM TYPE SS 33 01 CINCINNATI D10 33 01 IBM 77 SERIES 33 01 SIMPLEX 77 SER 33 01 SIMPLEX 93-9 33 01 SIMPLEX 91-9 33 01 SIMPLEX 941-9 33 01 SIMPL...
Page 36 - APPENDIX C2 - WIRING SECONDARY CLOCKS
LTRx-512 Installation and User’s Guide Wiring Diagrams 33 APPENDIX C2 - WIRING SECONDARY CLOCKS TYPE 01 - SYNCHRONOUS WIRED TYPES INCLUDE: Lathem Type SS Wall Clocks Cincinnati D10 (115VAC), D12 (24VAC) IBM 77 Series Simplex 77 Series, 93-9, 91-9, 941-9, 943-9, 6310-9231 Stromberg 3000 All circuits ...
Page 42 - TYPE; MINUTE DUAL MOTOR
LTRx-512 Installation and User’s Guide Wiring Diagrams 39 115VAC TYPE All circuits should be fused or protected by a circuit breaker (10Amp maximum) 24VAC TYPE All circuits should be fused or protected by a circuit breaker (10Amp maximum) TYPE 09 - SIMPLEX 59 TH MINUTE DUAL MOTOR TYPE 10 - SIMPLEX 4...
Page 44 - see NOTE for Type 15 re:
LTRx-512 Installation and User’s Guide Wiring Diagrams 41 Type 14 - ELECTRONIC CODED CLOCKS Clocks run normally with 120 VAC power. For any bells or clock correction, the generator prestart relay (SK1) first turns on for the signal-generator to reach frequency. SK1 turns on at the 00 second after a ...
Page 45 - All circuits should be fused or protected by a
LTRx-512 Installation and User’s Guide Wiring Diagrams 42 Clock correction and bell circuit operations are generated by sequentially applying various frequencies onto the 120 VAC. Each bell and clock correction circuit has its own frequency. Each bell and clock correction circuit has a receiver circ...
Page 60 - MODEM
LTRx-512 Installation and User’s Guide Installing the Modem 57 APPENDIX E – INSTALL THE OPTIONAL MODEM Installation of the optional internal modem should be performed by a trained and competent electronics technician. Follow these steps; 1. Turn off the power to the Master Clock. You can either acce...
Page 61 - cable pair (as illustrated
LTRx-512 Installation and User’s Guide Connecting the LTR-GPS Satellite Receiver/Synchronizer 58 APPENDIX F – Connecting the LTR-GPS Satellite Receiver / Synchronizer Lathem’s LTR-GPS is a Global Positioning Satellite receiver using 12-channels to access the accurate date and time signal transmitted...
Page 67 - Limited One-Year Limited Warranty
LTRx-512 Installation and User’s Guide 64 Limited One-Year Limited Warranty Lathem warrants the hardware products described in this guide against defects in material and workmanship for a period of one year from date of original purchase from Lathem or from an authorized Lathem reseller. The conditi...
Page 68 - Index
LTRx-512 Installation and User’s Guide 65 Index A Administrator password .......................... 11, 19 Auto Bell Test ...................................... 15, 22 B Baud rate ............................................... 29 Baud Rate ............................................... 18 Bell sch...