Conventional Systems Technical Manual - Alcad

MODULATORS FOR TV DOOR ENTRY INSTALLATIONSElements which generate an analogue TV channel from the video signal of the video door entry video unit for coaxial cable andthen distribute this channel to the TV installation of the dwellings. Compatible with the TV standards of several countries.Equipped with DC outlet to power the B/W video unit (coaxial) for TV door entry system, model TCB-210. Wall-mounting.Available in two models, depending on the TV channels (i.e. frequencies) they can generate.70 mm111 mm42 mm230V~ ±10%50-60HzDC OUT : 15V0.2 A965 SERIESMODULATORCod. 9650007MDA-300MULTISTANDARD BIII MODULATOR WITH DC OUTPUT TO FEED VIDEOUNIT WITH EXTERNAL POWER SUPPLYModulator which can generate any TV channel situated between 174 MHZ and 302MHz fromthe video signal of the video unit. Compatible with the following television standards: B CCIR,B ITALY, D OIRT, D POLAND, I IRELAND and I SOUTH AFRICA.Incorporates micro-switches for selecting the TV output channel and TV standard (1) and a levelcontrol for the output channel (2).Operating temperature -10 to + 55 °CDescription of terminals and technical characteristicsTECHNICAL CHARACTERISTICSStandardB CCIRB ITALYD OIRTD POLANDI IRELANDI SOUTH AFRICAVideo signal inputFrequency range174 - 302 MHz1SW1DC output voltageTV channel outputVideo input connectionF FEMALE2TV output connectionF FEMALEVideo input level0.7 - 1.4 Vpp (75 Ω)ModulationDSBOutput level86 dBµV ± 2.0Output level adjust20 dBCarrier/Noise ratio (C/N)>58 dBMains voltage230 V ±10% 50/60 Hz15 V 0.2 A88