Lathem manual Mounting DDC2 / DDC4 Series, Mounting to a Wall

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Digital Display Wall Clock Guide

Mounting - DDC2 / DDC4 Series

The DDC Series Wall Clocks can be mounted directly to a wall, to a single gang outlet box, double hung from the wall or double hung from the ceiling. When deciding where the clock will be mounted, keep in mind that 115VAC power may be required depending on the installation type.

See page 14, figure 3.

Mounting to a Wall

Tools required for mounting the clock:

Drill with a 5/16" bit

Hammer

Phillips head screwdriver

Wall anchors

Pencil

DDC2

»After deciding the location where the clock will be mounted, make two marks 7" apart and

horizontal.

Note: If mounting near a ceiling, make sure the holes are at least 2 1/4" away from the ceiling.

Note: Make sure you have at least 10 1/2" of side clearance on one side in order to remove the lens and circuit board assembly.

»Drill a 5/16" hole at each mark

»Insert a wall anchor in each hole and tap it flush to the wall with the hammer.

»Insert a screw into each wall 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 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 signal cable in the gang box behind the clock to eliminate possible snagging when the circuit board assembly is removed or replaced. If RS-485 signaling is used, attach the signal pair to the mini Terminal Block Plug and pass the cable from behind the clock, through the hole into the clock's interior).

»Route the 6-position plug (and optional RS485 cable) to the circuit board assembly and attach.

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Contents Installation & Users Guide Lathem Time Corporation Table of Contents Page Page Page Clock Operation IntroductionAbout this Manual DDC-TC Optional AccessoriesPage Setting the DIP Switches DDC2 / DDC4 Series Configuring the DDC Series Wall ClockDIP Switch Settings DDC2/4-RS / DDC2/4-RS-24 Configuring RS485 Communications DDC2/4-RS SeriesBattery Usage DDC2 / DDC4 Series Power Cord Installation DDC2/4-RS Battery Installation DDC2 / DDC4 SeriesSecondary Wiring Wiring Installation DDC2/4-RS SeriesRS485 Wiring DDC-TC WiringReplacing an Existing DDC4 Wall Clock Board Layout DiagramMounting to a Wall Mounting DDC2 / DDC4 SeriesMounting to a Single Gang Box DDC2 Double Mount Wall DDC2 Double Mount Wall DDC4 Double Mount Wall Double Mount Ceiling DDC2 Double Mount Ceiling DDC4 Double Mount Ceiling Time Formats Setting the TimeGrnd Appendix a DDC2-RS / 4-RS Secondary Clock Wiring DiagramsBLK Stand-Alone 115VACBRN / WHT BLU / WHT Wire Synchronous 115VACGrnd BLK Wire Synchronous 24VACAC RTN BLUYEL / WHT VIO / WHT BRN / WHT Wire minute Impulse 59th MinuteBLK YEL / WHT VIO / WHT BRN / WHT Wire Minute Impulse 59th Minute With 12 Hour CorrectionStandard Electric Synchronous BLK YEL Standard Electric AR-2A 2-Wire Dual VoltageStandard Electric AR-2 2-Wire Dual Voltage Synchronous Wired Simplex 59th Minute Dual Motor Simplex 45th Minute Dual Motor Edwards Dual Motor BLK YEL / WHT VIO / WHT BRN/ WHT Standard Electric AR-3 3-Wire Minute ImpulseNational Synchronous Wired Stromberg Synchronous Wired 56th Minute Cincinnati D1 CommonCincinnati D6, Edwards BLK VIO / WHT YEL / WHTVIO / WHT YEL / WHT Wire Pulse Alternating 24VDCElectronic Coded Grnd AC RTN BLK BLUStraight Frequency Wire Minute Impulse 58th Minute Wire Minute Impulse 44th Minute Wire Reverse Polarity Minute Impulse 59th Minute Appendix B DDC2-RS-24 / DDC4-RS-24 Wiring BLK BRN / WHT BLU / WHT DDC2-RS-24 / DDC4-RS-24 WiringRS485 Data Format Appendix C RS485 Wiring DiagramsOmcii to DDC2-RS / 4-RS OMCGND LTR0 to DDC2-RS / 4-RS BLK HLTR4 / 8-512 to DDC2-RS / 4-RS Terminal # Signal JP4 ConnectionWiring Appendix D DDC-TC Timer Control PanelTimer Control InstallationAs a Count Down Timer Operation As a Count Up TimerDWA-S Appendix E LTR-GPS Satellite Receiver / Clock SynchronizerPage Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock DDC2 / DDC4 Appendix F SpecificationsLimited One-Year Limited Warranty Appendix G Warranty
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