Lathem DDC2, DDC4 manual Mounting to a Single Gang Box

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Digital Display Wall Clock Guide

Page 12

»Slide the lens and circuit board assembly back into the case, replace the end cap and secure with the four phillips head screws.

DDC4

»After deciding the location where the clock will be mounted, make two marks 12" 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 16" of side clearance on one side in order to remove the front panel.

»Drill a 5/16" hole at each mark

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

»Insert a screw into each wall anchor leaving 1/4" exposed.

»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 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.

»Slide the front panel display back into the case, replace the end cap and secure with the two phillips head screws.

Mounting to a Single Gang Box

Two mounting holes have been located in the center of the case 2 1/4" apart for mounting to a single gang wall box. A 7/8" hole has been placed between the mounting holes that will accept conduit if desired.

See page 14, figure 3.

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Contents Installation & Users Guide Lathem Time Corporation Table of Contents Page Page Page Introduction Clock OperationAbout this Manual Optional Accessories DDC-TCPage Configuring the DDC Series Wall Clock Setting the DIP Switches DDC2 / DDC4 SeriesDIP Switch Settings Configuring RS485 Communications DDC2/4-RS Series Battery Usage DDC2 / DDC4 SeriesDDC2/4-RS / DDC2/4-RS-24 Battery Installation DDC2 / DDC4 Series Power Cord Installation DDC2/4-RSRS485 Wiring Wiring Installation DDC2/4-RS SeriesSecondary Wiring DDC-TC WiringBoard Layout Diagram Replacing an Existing DDC4 Wall ClockMounting DDC2 / DDC4 Series Mounting to a WallMounting 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 Setting the Time Time FormatsBLK Appendix a DDC2-RS / 4-RS Secondary Clock Wiring DiagramsGrnd Stand-Alone 115VACWire Synchronous 115VAC BRN / WHT BLU / WHTAC RTN Wire Synchronous 24VACGrnd BLK BLUWire minute Impulse 59th Minute YEL / WHT VIO / WHT BRN / WHTWire Minute Impulse 59th Minute With 12 Hour Correction BLK YEL / WHT VIO / WHT BRN / WHTStandard Electric Synchronous Standard Electric AR-2A 2-Wire Dual Voltage BLK YELStandard Electric AR-2 2-Wire Dual Voltage Synchronous Wired Simplex 59th Minute Dual Motor Simplex 45th Minute Dual Motor Edwards Dual Motor Standard Electric AR-3 3-Wire Minute Impulse BLK YEL / WHT VIO / WHT BRN/ WHTNational Synchronous Wired Stromberg Synchronous Wired 56th Minute Common Cincinnati D1BLK VIO / WHT YEL / WHT Cincinnati D6, EdwardsWire Pulse Alternating 24VDC VIO / WHT YEL / WHTGrnd AC RTN BLK BLU Electronic CodedStraight 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 DDC2-RS-24 / DDC4-RS-24 Wiring BLK BRN / WHT BLU / WHTAppendix C RS485 Wiring Diagrams RS485 Data FormatOMC GNDOmcii to DDC2-RS / 4-RS BLK H LTR0 to DDC2-RS / 4-RSTerminal # Signal JP4 Connection LTR4 / 8-512 to DDC2-RS / 4-RSAppendix D DDC-TC Timer Control Panel WiringInstallation Timer ControlOperation As a Count Up Timer As a Count Down TimerAppendix E LTR-GPS Satellite Receiver / Clock Synchronizer DWA-SPage Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock Appendix F Specifications DDC2 / DDC4Appendix G Warranty Limited One-Year Limited Warranty
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