Lathem DDC2 Series Installation And User Manual Download

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Digital Display Wall Clock

DDC2 / DDC4 Series

Installation &

User's Guide

Summary of Contents for DDC2 Series

Page 1: ...Digital Display Wall Clock DDC2 DDC4 Series Installation User s Guide ...

Page 2: ...n This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turnin...

Page 3: ...C2 4 RS DDC2 4 RS 24 7 Battery Installation DDC2 DDC4 Series 8 DDC2 8 DDC4 8 Power Cord Installation DDC2 4 RS 8 DDC2 RS 8 DDC4 RS 9 Wiring Installation DDC2 4 RS Series 9 Secondary Wiring 9 RS485 Wiring 9 DDC TC Wiring 9 Replacing an Existing DDC4 Wall Clock 10 Board Layout Diagram 10 Mounting DDC2 DDC4 Series 11 Mounting to a Wall 11 DDC2 11 DDC4 12 Mounting to a Single Gang Box 12 DDC2 13 DDC4 ...

Page 4: ... Simplex 45th Minute Dual Motor 31 Edwards Dual Motor 32 Standard Electric AR 3 3 Wire Minute Impulse 33 National Synchronous Wired 34 Stromberg Synchronous Wired 56th Minute 35 Cincinnati D1 36 Cincinnati D6 Edwards 2406 37 2 Wire Pulse Alternating 24VDC 38 Electronic Coded 39 Straight Frequency 40 3 Wire Minute Impulse 58th Minute 41 3 Wire Minute Impulse 44th Minute 42 2 Wire Reverse Polarity M...

Page 5: ...nt Up Timer 52 As a Count Down Timer 52 Appendix E LTR GPS Satellite Receiver Clock Synchronizer 53 Connecting to a Lathem DDC2 RS or DDC4 RS Digital Clock 55 Appendix F Specifications 56 Appendix G Warranty 57 ...

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Page 7: ...the wall or ceiling During power failures a 9 Volt alkaline battery not supplied can maintain the DDC Series Wall Clock s internal time keeping although the display is blank during power failures Clock Operation When the Digital Display Series Wall Clocks are set to operate as stand alone or synchronous wired secondary clocks the time base is derived from the AC power source The frequency 50Hz or ...

Page 8: ...e a secondary clock to virtually any master controlled system or can be synchronized with the RS485 signal from the Lathem LTR4 512 or LTR8 512 Master LTR0 mini master Terminal Manager Software or the OMNI CHRON Time Clock DDC2 RS 24 DDC4 RS 24 Same as above models with the 24 suffix have an optional power transformer that allows for 24VAC operation These models are designed to be powered from an ...

Page 9: ...l method to mount Receiver outside the DDC2 if Receiver is used Receiver not included DDC TC Timer Control Panel to use the DDC2 4 Series as a count up down timer LTR4 512 LTR8 512 LTR8 512M Master Clocks capable of synchronizing the DDC Series Wall Clocks as well as many other brands and types of wall clocks Available configurations include 8 6 4 and 2 bell circuits Mlink Master Link software for...

Page 10: ...8 10 Hex Nuts SAM0630 Kit middle Includes 1 Mounting Plate Assembly 2 Modified End Caps 2 Chase Nipples 4 10 Screws 8 10 Lock Washers 4 10 Hex Nuts SAM0625 Kit right Includes 1 Mounting Plate Assembly 2 Modified End Caps 1 End Cap Support 2 Chase Nipples 4 10 Screws 8 10 Lock Washers 4 10 Hex Nuts 4 6 Screws 4 6 Lock Washers 4 6 Hex Nuts ...

Page 11: ...the case replace the end cap and secure with the four phillips head screws DDC4 Remove the two phillips head screws from the left or the right end cap and remove Slide the front panel assembly out of the case Carefully flip the front panel assembly over and lay it face down on a clean smooth work surface Locate switch S1near the center of the circuit board and set the DIP switches See figure1below...

Page 12: ...or 1 1 0 1 0 Standard Electric AR 3 3 Wire Minute Impulse 0 0 1 1 0 National Synchronous Wired 1 0 1 1 0 Stromberg Synchronous Wired 0 1 1 1 0 Cincinnati D1 1 0 0 0 1 Cincinnati D6 Edwards 2406 0 1 0 0 1 2 Wire Impulse Alternating 24VDC 1 1 0 0 1 Electronic Coded 3510 Hz Receiver Required 0 0 1 0 1 Straight Frequency 3510 Hz Receiver Required 1 0 1 0 1 3 Wire Minute Impulse 58th Minute 0 1 1 0 1 3...

Page 13: ...head screws from the left or the right end cap and remove Slide the front panel assembly out of the case Carefully flip the front panel assembly over and lay it face down on a clean smooth work surface Locate position J2 on the left upper side of the back of the front panel See figure 2 page 9 Lift the shunt straight up off the single pin of position J2 Align the shunt to cover both pins of positi...

Page 14: ...he circuit board assembly See figure 2 page 9 Slide the battery into the cradle making sure the Positive and Negative connections of the battery and cradle match Snap the battery onto the connections located inside the battery cradle Slide the front panel display back into the case replace the end cap and secure with the two phillips head screws Power Cord Installation DDC2 4 RS Note This section ...

Page 15: ...nd screw located on the inside back of the case Slide the front panel display back into the case replace the end cap and secure with the two phillips head screws Wiring Installation DDC2 4 RS Series Secondary Wiring The DDC Wall Clock comes with a detachable wiring harness to make installation easier The wiring harness can be removed from the back of the main circuit board at position J1 as shown ...

Page 16: ...older style clock and attach the wires to the new DDC Series Wall Clock as described above Board Layout Diagram J2 Factory Default Off J2 Install shunt on last clock for RS485 connections Figure 2 JP2 Hours Minutes Up Down J4 J3 J1 OPEN 1 2 3 4 5 6 7 8 DIP Switch S1 9VDC Alkaline Battery Cradle Lathem Time Corp DDC2 4 E PROM Jumper J2 Ground Beeper D D JP4 JP1 JP3 Fly Lead Connector ...

Page 17: ... anchor leaving 1 4 exposed Remove the four phillips head screws from the left or the right end cap and remove Slide the lens and circuit board assembly out of the case and set aside Line up the two keyholes on the back of the case and slip over the two screws and tighten securely The lower mounting holes can be marked at this point the case removed holes drilled and wall anchors installed if so d...

Page 18: ...ll anchors installed if so desired Remove the desired vent cap that any required wiring will route through If the wiring will be installed through the back of the clock conduit access route the fly leads of the clock s Cable Harness Assembly from the interior of the clock through the hole in the Clock s rear plate Use wire nuts or crimp connectors to join these leads with the power and synch signa...

Page 19: ...tion plug and optional RS485 cable to the circuit board assembly and attach Slide the lens and circuit board assembly back into the case replace the end cap and secure with the four phillips head screws DDC4 Note If mounting near a ceiling make sure the top of the single gang box is at least 2 1 4 away from the ceiling Note Make sure you have at least 16 of side clearance on one side in order to r...

Page 20: ...ewdriver 15 16 open end wrench The double wall mount plate attaches to a double or single gang box installed securely in the wall Required wiring should be available through the gang box at time of installation Remove the two chase nipples from the mounting plate posts Run the required wiring from the gang box through one of the mounting posts of the mounting plate Secure the mounting plate secure...

Page 21: ...ttach the modified end caps to the end of the clocks that will be attached to the wall mount plate using the original end cap screws Run the required wiring through the matching hole in the modified end cap Line the two posts from the mounting plate up with the two holes of the modified end caps Insert the chase nipples through the holes of the modified end caps and secure to the mounting plate wi...

Page 22: ...ws Align the holes of the end cap support plate with the holes in the modified end cap and secure with 4 6 phillips head screws supplied Line the two posts from the mounting plate up with the two holes of the modified end cap Insert the chase nipples through the holes of the modified end cap and secure to the mounting plate with a 15 16 wrench Slide the front panel assemblies in partially Secure t...

Page 23: ...x at time of installation Remove the two chase nipples from the mounting plate posts Run the required wiring from the gang box through one of the mounting posts of the mounting plate Secure the mounting plate securely to the gang box with the proper screws not supplied Note When mounting DDC2 clocks the short side of the mounting plate must be parallel to the long side of the clocks When mounting ...

Page 24: ...ted too near a wall on one side to secure the end caps install the wall side end caps now Remove the center vent cap from the top of each DDC2 clock Line the two posts from the mounting plate up with the vent holes of the DDC2 clocks Insert the chase nipples through the vent holes and secure to the mounting plate with a 15 16 wrench Slide the circuit board assemblies in partially Secure the requir...

Page 25: ... clocks will be mounted too near a wall on one side to secure the end caps install the wall side end caps now Remove the center vent cap from the top of each DDC4 clock Line the two posts from the mounting plate up with the vent holes of the DDC4 clocks Insert the chase nipples through the vent holes and secure to the mounting plate with a 15 16 wrench Slide the front panel assemblies in partially...

Page 26: ...d When setting the hour if the display is set to 12 Hour a dot in the upper left corner of the display represents the PM hours Note Setting the minutes past 59 will not cause the hour to advance Note Avoid using sharp or pointed objects to set the time as damage to the buttons may occur A standard pencil eraser is suggested Time Formats The DDC2 DDC4 Series Wall Clocks can be set to display in 12 ...

Page 27: ...e Appendix B for DDC2 RS 24 DDC4 RS 24 wiring Stand Alone 115VAC GRND AC IN AC RTN BLK BLK 115VAC Local Power Set switches 1 5 of S1 as shown Indicates depressed side of switch OPEN 1 2 3 4 5 6 7 8 H M Hour and Minutes must be set manually Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 28: ...depressed side of switch Wiring applies to secondary wall clocks such as Lathem type SS Cincinnati D10 IBM 77 Series Simplex 77 Series 93 9 91 9 941 9 943 9 Stromberg 3000 To Other Clocks 115VAC From Master Clock H M BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock will correct minutes hourly at HH 59 and hour and minutes twice daily at 5 59 ...

Page 29: ...side of switch Wiring applies to secondary wall clocks such as Lathem type SS Cincinnati D10 IBM 77 Series Simplex 77 Series 93 9 91 9 941 9 943 9 Stromberg 3000 To Other Clocks 24VAC From Master Clock H M 115VAC Local Power BLU WHT Correction BRN WHT Return GRND AC IN AC RTN BLK BLK Clock will correct minutes hourly at HH 59 and hour and minutes twice daily at 5 59 ...

Page 30: ...ay Impulse Simplex 75 Series 91 4 93 4 941 4 943 4 IBM 75 Series OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch BRN WHT GRND AC IN AC RTN A B C VIO WHT YEL WHT BLK BLK To Other Clocks 24VDC From Master Clock 115VAC Local Power H M Clock must be set within 20 minutes of actual time for master to synchronize Use of a 9Volt alkaline battery is recommended to a...

Page 31: ...C VIO WHT YEL WHT BLK BLK Wiring applies to secondary wall clocks such as Lathem ISC 3 Wire 12Hour Simplex 91 941 Set switches 1 5 of S1 as shown Indicates depressed side of switch OPEN 1 2 3 4 5 6 7 8 To Other Clocks 24VDC From Master Clock 115VAC Local Power H M Clock will correct minutes hourly at HH 58 and hour and minutes twice daily at 5 58 ...

Page 32: ...cks 115VAC From Master Clock OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M For 24VAC correction use wiring shown on page 23 BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock will correct minutes hourly at HH 59 and hour and minutes twice daily at 5 12 ...

Page 33: ...RND AC IN AC RTN AB PC YEL WHT BLK BLK To Other Clocks 24VDC 48VDC From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Clock must be set to actual time Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 34: ...RND AC IN AC RTN AB PC YEL WHT BLK BLK To Other Clocks 24VDC 48VDC From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Clock must be set to actual time Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 35: ...witches 1 5 of S1 as shown Indicates depressed side of switch Wiring applies to secondary wall clocks such as Cincinnati D8 Faraday Honeywell ST402A H M For 24VAC correction use wiring shown on page 23 BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock will correct minutes hourly at HH 58 and hour and minutes twice daily beginning at 5 05 ...

Page 36: ...3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M For 24VAC correction use wiring shown on page 23 BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock must be set to proper hour Clock will correct minutes hourly at HH 58 Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 37: ...3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M For 24VAC correction use wiring shown on page 23 BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock must be set to proper hour Clock will correct minutes hourly at HH 45 Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 38: ... Clock OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M For 24VAC correction use wiring shown on page 23 BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock must be set to actual time Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 39: ...From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch BRN WHT 24 VDC Pulse Common YEL WHT 48 VDC Correction GRND AC IN AC RTN BLK BLK VIO WHT H M Clock must be set to actual time Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 40: ...s 115VAC From Master Clock OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M For 24VAC correction use wiring shown on page 23 BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock will correct minutes hourly at HH 00 and hour and minutes twice daily at 6 00 ...

Page 41: ... Clocks 115VAC From Master Clock OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M For 24VAC correction use wiring shown on page 23 BLU WHT Run Correction BRN WHT BLK BLK AC Return Clock will correct minutes hourly at HH 56 and hour and minutes twice daily at 11 56 ...

Page 42: ...BLK To Other Clocks 24VDC 60VDC From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Clock must be set within 20 minutes of actual time for master to synchronize Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 43: ...6VDC From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of SW1 as shown Indicates depressed side of Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Clock must be set within 20 minutes of actual time for master to synchronize Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 44: ... 1 5 of S1 as shown Indicates depressed side of switch A B YEL WHT GRND AC IN AC RTN BLK BLK VIO WHT To Other Clocks 24VDC From Master Clock 115VAC Local Power H M Clock must be set within 20 minutes of actual time for master to synchronize Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 45: ...C IN AC RTN BLU WHT BLK BLK RED GRAY WHT 3510 Hz Reciever 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Requires 3510Hz receiver not supplied Clock will correct minutes hourly at HH 57 and hour and minutes twice daily at 5 57 ...

Page 46: ...AC IN AC RTN BLU WHT BLK BLK RED GRAY WHT 3510 Hz Reciever 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Requires 3510Hz receiver not supplied Clock will correct minutes hourly at HH 57 and hour and minutes twice daily at 5 57 ...

Page 47: ...HT YEL WHT BLK BLK To Other Clocks 24VDC From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Clock must be set within 20 minutes of actual time for master to synchronize Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 48: ...HT YEL WHT BLK BLK To Other Clocks 24VDC From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Clock must be set within 20 minutes of actual time for master to synchronize Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 49: ... AC RTN BLK BLK VIO WHT To Other Clocks 24VDC From Master Clock 115VAC Local Power OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch H M Clock must be set within 20 minutes of actual time for master to synchronize Use of a 9Volt alkaline battery is recommended to avoid resets after power failures ...

Page 50: ...for 24VAC operation The 24VAC power from the Master Clock or Power Supply should be connected to the two black wires leading from J1 See figure 7 below for location of J1 Correction wiring should be applied according to the secondary type selection as shown in Appendix A CAUTION Applying any voltage higher than 24VAC to the input two black leads from J1 WILL cause damage to the DDC2 RS 24 and DDC4...

Page 51: ... Guide DDC2 4 RS 24 Wiring DDC2 RS 24 DDC4 RS 24 Wiring H M OPEN 1 2 3 4 5 6 7 8 Set switches 1 5 of S1 as shown Indicates depressed side of switch To Other Clocks 24VAC From Master Clock BLU WHT Run Correction BRN WHT BLK BLK AC Return ...

Page 52: ...s byte Command for Time update 11 Hex for Seconds 01 59 22 Hex for Minutes 00 59 33 Hex for Hour 00 23 44 Hex for Day of Week Sunday 0 55 Hex for Month 01 12 66 Hex for Date 01 31 777 Hex for Year offset from 1984 000 127 Z The Checksum 1 s compliment of the mod 64 sum of all characters in the string except the CR and the Checksum CR Carriage Return Transfer of the above string must be done at 960...

Page 53: ...Other Clocks BLK BLK 115VAC Local Power OMCII DB9 Female Plug Cable should be RS232 twisted pair CAT3 or CAT5 type Maximum distance to last DDC Clock is 4000 feet Last DDC Clock must have jumper installed on position J2 See page 8 for details Set switches 1 5 of S1 as shown Indicates depressed side of switch OPEN 1 2 3 4 5 6 7 8 11 30 OMC II GND of JP4 D of JP4 D of JP4 GND Trans Trans H M DDC2 RS...

Page 54: ... Ground GND BLK BLK 115VAC Local Power To Other Clocks LTR0 Fly Leads Cable should be RS232 twisted pair CAT3 or CAT5 type Maximum distance to last DDC Clock is 4000 feet Last DDC Clock must have jumper installed on position J2 See page 8 for details Set switches 1 5 of S1 as shown Indicates depressed side of switch OPEN 1 2 3 4 5 6 7 8 H M LTR 0 BLK ORN GRY GND of JP4 D of JP4 D of JP4 DDC2 RS 4 ...

Page 55: ...115VAC Local Power To Other Clocks LTR4 8 512 Terminal Connections Cable should be RS232 twisted pair CAT3 or CAT5 type Maximum distance to last DDC Clock is 4000 feet Last DDC Clock must have jumper installed on position J2 See page 8 for details Set switches 1 5 of S1 as shown Indicates depressed side of switch OPEN 1 2 3 4 5 6 7 8 DDC2 RS 4 RS JP4 Connector LTR4 8 512 D D D of JP4 D of JP4 11 3...

Page 56: ...wires include Up Down Hours Minutes Beeper and Ground To wire the DDC TC to the DDC Series Wall Clock locate JP2 and JP4 on the back of the DDC display panel see figure 2 page 10 pass the wire through a knockout at both the DDC TC double gang box not included the DDC Wall Clock and follow the diagram below Beeper Ground Minutes Hours Up Down Rear View Used for Reference DDC Series Wall Clock JP2 J...

Page 57: ...nce the wiring has been attached place the wires inside the double gang wall box and mount the DDC TC to the box with the four screws supplied with the DDC TC by inserting them through the mounting holes and securing Mounting Holes Mounting Holes Set Hours Stop Continue Count Down Start 00 00 Quit Set Minutes Stop Continue Start HH MM Count Up TIMER CONTROL ...

Page 58: ...start the count press Count Down To pause the count press Stop Continue To continue the count press Stop Continue To return to clock mode press Quit Note To pause and continue press the corresponding Stop Continue button that started the operation In the Count Down mode when 00 00 is reached an audible tone will sound and the display will return to clock mode When in Count Up or Count Down mode wh...

Page 59: ...es can be further increased using Lathem s SWIFT485 RS 485 Converter Repeater The supported products include LTR 0 Master Clock 1 Clock Ctl DWA S Sonochron 1 Bell Ckt LTR4 512 Master Clock 1 Clk 2 Ckt LTR8 512 Master Clock 1 Clk 6 Ckt LTR8 512M Master Clock w Modem DDC2 RS 2 Digital Wall Clock 115v DDC2 RS 24 2 Digital Wall Clock 24v DDC4 RS 4 Digital Wall Clock 115v DDC4 RS 24 4 Digital Wall Cloc...

Page 60: ...pter Active GPS Antenna with 25ft Cable Antenna Mounting Bracket and Hardware Installation and Set Up Guide Separately from Lathem for Installer convenience GPS INSTALL TOOLS Battery Beeper assemblies aid in Antenna positioning LTR GPS Specifications Size Weight 3 25 x 2 x6 6 1 lb Power 6 12vAC DC 300mA max Certificates FCC Part 15 ICES003 ...

Page 61: ...Page 55 Digital Display Wall Clock Guide Specifications Connecting to a Lathem DDC2 RS or DDC4 RS Digital Clock DDC2 RS DDC4 RS ...

Page 62: ...anel steel end caps with black textured paint DDC4 Extruded aluminum main case with black textured paint steel front panel with black textured paint molded plastic end caps with black texture Line Power DDC2 DDC4 115VAC 80mA typical 220VAC 80mA typical optional DDC2 RS 24 DDC4 RS 24 24VAC 400mA typical Standby Power DDC2 DDC4 9VDC 1 2mA Alkaline Battery not included Environment DDC2 DDC4 32o to 15...

Page 63: ...iginal carton or equivalent fully insured with shipping charges prepaid Lathem will not assume any responsibility for any loss or damage incurred in shipping 6 WARRANTY DISCLAIMER AND LIMITATION OF LIABILITY Except only the limited express warranty set forth above the products are sold with no expressed or implied warranties of any kind and the implied warranties of merchantability and fitness for...

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