Peripheral InstallationStrata CT I&M Manual October 2000 6-15Figure 6-10 Multiple Door Lock Control Options (DDCB/HDCB)Night Transfer/Night Relay Options with PIOU, PIOUS, orPEPU Night Transfer/Night Relay option may be programmed for either the Night Relay or theMOH relay function. (See Figures 6-7, and 6-8.)Note Only the PIOU/PIOUS, or PEPU with the lowest Program 03 code (41, 42 or 43)will provide the Night Transfer (NT) or MOH relay control function.When configured for the NT function with Program 77-1, the relay activates if the system isin the Night mode. The relay can be programmed to activate continuously when the NightTransfer button (only) is set for the Night mode (for indirect answering machine control),or to pulsate at one-second On/three-seconds Off (for a night bell) when incoming Exchangelines ring (Night Transfer 1~4 = tenant 1~4 Exchange lines) per Program *15 and 77-3.When configured for the MOH function with Program 77-1, the relay activates any time anExchange line is on hold. In this configuration, the relay is normally used to control the MOHsource.PDKU(See Chapter 4 -Wiring Diagrams)DDCBAC2B345RJ11 3425Relay Contactto CustomerSuppliedDeviceMDFB12RJ11 34MDFB1RJ11 34MDFB134Door PhoneADoor Phone BorDoor Lock Control22Door PhoneC34DDCB Wiring ChartSee Chapter 4—Wiring for PDKU pin-out information.See Chapter 2—Installation for pin-out information.RelayControlContactPDKU to DDCB KSU JackDT (34) / DR (9) to PIN 3 / 4PT (35) / PR (10) to PIN 5 / 6Notes1. Relay control contact will close when the door phone is in the ringing, talk, or monitor state.2. Relay contact specifications are -24VDC at 1.0 amp. max. Do not connect relay contacts to 120 AC commercial power.4301Door LockControlContact213Strata CT (Ports 004,012, 020, 028)
