GM-TTT - Alpermann+Velte

Installation & Operation Manual GM-TTTPage 14GPIOption G: Relay pointsSwitcher COM1-NC1 (Normally Closed)and COM1-NO1 (Normally Open).• Max. switchable power: 5 W.• Max. switchable voltage: 175 V.• Max. switching current: 0.25 A• Max. transportable current: 1 AOption P: Pulse outputsTTL level pulsesOption A: Power supply and data telegram to driveanalogue clocks.Pin 1: NC1Pin 2: NO1Pin 6: COM1Pin 3: Seconds pulsePin 4: Minutes pulsePin 5: GNDPin 1: V+ OutPin 2: V- OutPin 7: Signal OutPin 8: Signal GNDREF. DATA INInterface for the external reference time input, it ismissing in case of a built-in reference.P_SEC: 1pps signal (seconds pulse), internal triggerat rising or falling edge according toselection (menu REFER - MODE 1).Input low: max. 0.8 V.Input high: 2-15 V.RxD: Serial data protocol with fixed format(Meinberg): 2400/7/E/2.Input low: max. 0.8 V.Input high: 2-15 V.With option GPS IN:DSUB9M “DC GPS IN“Pin 1: P_SECPin 2: RxDPin 5: GNDPin 6: V+ = 11 - 30 VDC, 2WPin 7: V- (GND)OPTION 1With option DCF IN:BNC antenna input.With option GPS IN:SMA antenna input.BNC, 50 ΩSMAOPTION 2With option V (VITC generator): video + VITCoutput, according to SMPTE 12M-1995.Video output: gain = 1 ±1%.BNC (IEC 169-8), 75 Ω