Lathem DDC2 User Manual
Page 27
Page 21
Digital Display Wall Clock Guide
DDC2 / 4-RS Wiring
Appendix A - DDC2-RS / 4-RS Secondary Clock Wiring Diagrams
Note: See Appendix B for DDC2-RS-24 / DDC4-RS-24 wiring.
Stand-Alone (115VAC)
GRND
AC IN
AC RTN
B
L
K
B
L
K
115VAC
Local
Power
Set switches 1-5 of S1 as shown.
Indicates depressed side of switch
OPEN
1
2
3
4
5
6
7
8
H
M
Hour and Minutes must be set manually. Use of a
9Volt alkaline battery is recommended to avoid
resets after power failures.