Lathem DDC2, DDC4

Page 55 Digital Display Wall Clock Guide Specifications

Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock

DDC2-RS / DDC4-RS

Contents

Main Page Table of Contents Page Page Page Introduction Clock Operation About this Manual Optional Accessories Page Configuring the DDC Series Wall Clock Setting the DIP Switches - DDC2 / DDC4 Series DDC2 DDC4 DIP Switch Settings Configuring RS485 Communications - DDC2/4-RS Series DDC2-RS DDC4-RS Battery Usage - DDC2 / DDC4 Series DDC2/4-RS / DDC2/4-RS-24 Battery Installation - DDC2 / DDC4 Series DDC2 DDC4 Power Cord Installation - DDC2/4-RS DDC2-RS Wiring Installation - DDC2/4-RS Series Secondary Wiring RS485 Wiring DDC-TC Wiring Replacing an Existing DDC4 Wall Clock Board Layout Diagram - + Mounting - DDC2 / DDC4 Series Mounting to a Wall DDC2 DDC4 Mounting to a Single Gang Box Page Page DDC2 (Double Mount - Wall) DDC4 (Double Mount - Wall) Double Mount - Ceiling DDC2 (Double Mount - Ceiling) DDC4 (Double Mount - Ceiling) Setting the Time Time Formats 24 Hour Format 12 Hour Format Appendix A - DDC2-RS / 4-RS Secondary Clock Wiring Diagrams Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Appendix B - DDC2-RS-24 / DDC4-RS-24 Wiring - + Page 45 Digital Display Wall Clock Guide DDC2 / 4-RS -24 Wiring DDC2-RS-24 / DDC4-RS-24 Wiring BLU / WHT Run BRN / WHT BLK BLK Correction AC Return Appendix C - RS485 Wiring Diagrams RS485 Data Format OMCII to DDC2-RS / 4-RS 11 30 GND of JP4 : Trans - OMC II LTR 0 BLK D- of JP4 GND of JP4 ORN GRY D+ of JP4 11 30 LTR4 / 8-512 : D+ D- D- of JP4 D+ of JP4 Appendix D - DDC-TC Timer Control Panel Wiring Installation Operation As a Count Up Timer As a Count Down Timer Appendix E - LTR-GPS Satellite Receiver / Clock Synchronizer Page Page Appendix F - Specifications Appendix G - Warranty Limited One-Year Limited Warranty