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DDC2
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Page 55
Digital Display Wall Clock Guide
Specifications
Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock
DDC2-RS / DDC 4-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
Stand-Alone (115VAC)
GRND AC IN AC RTN
BLK BLK
3-Wire Synchronous (115VAC)
Page
Page
Page
Page
Page
Page
Page
Simplex 59
Minute Dual Motor
Simplex 45
Minute Dual Motor
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Appendix B - DDC2-RS-24 / DDC4-RS-24 Wiring
- +
DDC2-RS-24 / DDC4-RS-24 Wiring
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