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Rapco 1800 Series Distribution Amplifiers
	Frequency and Timing Distribution with Optional Auto-Changeover (Model 1876C shown) Common Features 19" Rack-Mount x 1U Height Alarm Contact Unit gives indication of power, input or output faults Cables Interconnection cables for power and input signal are available for order Amplifier gain Input to loaded output voltage gain 0 ± 1dB The models 1866 and 1886 distribution amplifiers provide fully automatic switchover function between a pair of time & frequency sources in the event of signal loss. The models 1876 and 1896 provide signal distribution from only one source. In both cases, a built in high-quality signal distribution function, provides up to 10 frequency (RF), and 10 timing (1 Hz) or 14 RF outputs in 1 RU of rack space. Each output is driven by an independent buffer, and individually monitored for signal failure. These units are AC and/or DC powered from time sources for reliability and battery backup possibility. Units may be powered from dc output from a master clock such as a model 1804. Special versions are available for timecode distribution (model 1896D) and telecom E1 frequency 2.048 MHz per G703.10 (model 1976).

FeaturesDocuments

1866A Frequency and Timing Changeover/Distribution Unit. Accepts 1 x Frequency (sine) and 1 x Timing input 50ohm, BNC and produces 10 10 x outputs 50ohm, BNC. D.C. power (twin inputs).
1866C Frequency Changeover/Distribution Unit. Accepts 1 x Frequency (sine) input 50ohm, BNC and produces 14 x outputs 50ohm, BNC. A.C. power with dc support.
1886A Frequency and Timing Changeover/Distribution Unit. Accepts 1 x Frequency (sine) and 1 x Timing input 50ohm, BNC and produces 10 10 x outputs 50ohm, BNC. D.C. power (twin inputs).
1886C Frequency Changeover/Distribution Unit. Accepts 1 x Frequency (sine) input 50ohm, BNC and produces 14 x outputs 50ohm, BNC. A.C. power with dc support.

1876A Frequency and Timing Distribution Unit. Accepts 1 x Frequency (sine) and 1 x Timing input 50ohm, BNC and produces 10 10 x outputs 50ohm, BNC. A.C. power with dc support.
1876C Frequency Distribution Unit. Accepts 1 x Frequency (sine) input 50ohm, BNC and produces 14 x outputs 50ohm, BNC. A.C. power with dc support.
1896A Frequency and Timing Distribution Unit. Accepts 1 x Frequency (sine) and 1 x Timing input 50ohm, BNC and produces 10 10 x outputs 50ohm, BNC. D.C. power (twin inputs).
1896C Frequency Distribution Unit. Accepts 1 x Frequency (sine) input 50ohm, BNC and produces 14 x outputs 50ohm, BNC. D.C. power (twin inputs).
1896D imecode Distribution Unit. Accepts 1 x Timecode input (BNC) and produces up to 14 x outputs 50ohm, BNC. Timecodes supported include IRIG-A, IRIG-B, XR3, or 2137.
1976DG703.10 Frequency Distribution unit. Accepts 1 x 2.048MHz Frequency (sine) input 50ohm, BNC and produces 24 x outputs 75ohm, BNC. A.C. power with dc support.