DDC4 (Double Mount - Ceiling).......................................................................................................... 19
Setting the Time............................................................................................................................................20
Time Formats............................................................................................................................................20
12 Hour Format.....................................................................................................................................20
24 Hour Format.....................................................................................................................................20
Appendix A - DDC2-RS / 4-RS Secondary Clock Wiring Diagrams...........................................................21
Stand-Alone (115VAC)............................................................................................................................ 21
3-Wire Synchronous (115VAC)............................................................................................................... 22
3-Wire Synchronous (24VAC)................................................................................................................. 23
3-Wire minute Impulse (59th Minute).......................................................................................................24
3-Wire Minute Impulse (59th Minute With 12 Hour Correction)..............................................................25
Standard Electric Synchronous.................................................................................................................26
Standard Electric AR-2A 2-Wire Dual Voltage........................................................................................27
Standard Electric AR-2 2-Wire Dual Voltage...........................................................................................28
Synchronous Wired...................................................................................................................................29
Simplex 59th Minute Dual Motor..............................................................................................................30
Simplex 45th Minute Dual Motor..............................................................................................................31
Edwards Dual Motor.................................................................................................................................32
Standard Electric AR-3 3-Wire Minute Impulse.......................................................................................33
National Synchronous Wired....................................................................................................................34
Stromberg Synchronous Wired (56th Minute)...........................................................................................35
Cincinnati D1............................................................................................................................................36
Cincinnati D6, Edwards 2406................................................................................................................... 37
2-Wire Pulse Alternating (24VDC).......................................................................................................... 38
Electronic Coded.......................................................................................................................................39
Straight Frequency....................................................................................................................................40
3-Wire Minute Impulse (58th Minute).......................................................................................................41
3-Wire Minute Impulse (44th Minute).......................................................................................................42
2-Wire Reverse Polarity Minute Impulse (59th Minute)...........................................................................43
Appendix B - DDC2-RS-24 / DDC4-RS-24 Wiring.....................................................................................44
DDC2-RS-24 / DDC4-RS-24 Wiring....................................................................................................... 45
Appendix C - RS485 Wiring Diagrams........................................................................................................ 46
RS485 Data Format...................................................................................................................................46
OMCII to DDC2-RS / 4-RS......................................................................................................................47
LTR0 to DDC2-RS / 4-RS........................................................................................................................48
LTR4 / 8-512 to DDC2-RS / 4-RS............................................................................................................49
Appendix D - DDC-TC Timer Control Panel...............................................................................................50
Wiring....................................................................................................................................................... 50
Installation................................................................................................................................................ 51
Operation.................................................................................................................................................. 52