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Lathem
DDC2, DDC4 manual
1
1
63
63
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63 pages, 1.13 Mb
Digital Display Wall Clock
DDC2 / DDC4 Series
Installation &
User's Guide
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
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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