NT-621 Series balun

Model

DC12V Power &Audio Transmit   (NT-621A)

AC24V Power  Transmit             (NT-621B)

AC24V Power &Audio Transmit   (NT-621C)

Environment

Close-Circuit TV (CCTV) equipment for security and surveillance

Devices

CCTV cameras, monitors, switchers, sequencers, multiplexer, digital video recorders (DVR) and other CCTV equipment

Transmission

Transparent to the user

Bandwidth

Video: DC to 8 MHz

Maximum Input

1.1 Vp-p

Insertion Loss

Less than 2 dB per pair over the frequency range from DC to 8 MHz

Return Loss

Greater than 15 dB over the frequency range from DC to 8MHz

Common Mode

Greater than 40 dB @ 8 MHz

Max. Distance for Color Video

Cat 600meters

Cable - UTP

24 Gauge or lower solid copper twisted pair wire impedance: 100 ohms at 1 MHz

Maximum capacitance: 20 pf / foot.

Attenuation: 6.6 dB / 1000 ft at 1 MHz

Cable - BNC

Impedance: 75 ohms at 1 MHz (RG59 / U). Maximum 25 ft. of coax allowed per end-to-end link.

Connectors

RJ 45 Pin 4, Pin 5 for video.

Impedance

Input: 75 ohms (BNC) Output: 100 ohms (RJ45)

Temperature

Operating: 0 to 55  C.

Storage: -20 to 85 C.

Humidity: up to 95%