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NCI Technologies NCI 100 User Manual

Summary of NCI 100

  • Page 1

    Features tel /mic vol bass treble pre- tone vol vol bass treble music nite bell vol user manual for telecom paging amplifiers models nci 20, nci 50 & nci 100 nci technologies • telephone system interface for paging. • full range volume and tone controls. • output fully short circuit protected. • sep...

  • Page 2

    Control panel layout 6" • power output: nci 20 20 watts rms nci 50 50 watts rms nci 100 100 watts rms • distortion: less than 1% at 1,000hz rated output • frequency response: ± 3 db, 100 ≈ 20,000hz • inputs: tel/mic 600 Ω balanced music 10k Ω unbalanced • sensitivity tel 150mv mic 1mv music 100mv • ...

  • Page 3

    In accordance with your particular system installation and requirements, make the following connections at the terminal block at the right. A) pins 1&2 – tel/mic (balanced input) connect to either the telephone system page port, c.O. Port, a telephone set or an external microphone (600 Ω balanced - ...

  • Page 4

    Vox control setting dip switch settings dip switches (1-7) set the dip switches according to your particular system installation and requirements as follows. Note: switch 8 is not used. A) dip switches 1&2 – tel/mic if connected to a phone system page port set both switches to the on position. If an...

  • Page 5

    Main controls a) fuse warning replace only with same type fuse (3ag sloblo) with rating depending on which model of amplifier you have. Model nci 20 3 / 4 amp nci 50 1 1 / 4 amp nci 100 2 amp b) power on indicator provides indication that the amplifier is powered. C) gnd a chassis ground post has be...

  • Page 6

    A - typical paging from a telephone system page port with control contacts 1 - connect voice source to pins 1 & 2 2 - connect page control to pins 5 & 6 3 - set dip switches as shown setting of dip switch 6 (pre-tone enable) to the on position is optional. Note: the input impedance of pins 1 & 2 is ...