Black Box IC443A, Installation Manual

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5
CHAPTER 1: Specifications
1. Specifications
Cable Required — Between Balun pairs: (1) Unshielded twisted pair (UTP)
cable:
Construction Standard: Category 3 or higher;
Gauge: 24 AWG or lower
Termination: RJ-45 plugs;
Pairs: Four (8 wires used) to carry all video and
audio channels;
Impedance: 100 ohms at 1 MHz;
Maximum Capacitance: 20 pF/ft. (6.1 pF/m);
Maximum Attenuation: 6.6 dB/1000 ft. (2 dB/km);
To attached devices:
Video: (1) Standard 75-ohm coaxial cable with a BNC
male connector on the Balun end;
Audio: (2) Standard RCA phono cables
Compliance — FCC Class B, DOC Class/MDC classe B;
CISPR Pub. 22 Class B
Standard — Composite (baseband) video: NTSC, PAL, or SECAM
Impedance — Coaxial side: 75 ohms;
Phono side: 600 ohms;
UTP side: 100 ohms
Bandwidth — Video: DC to 10 MHz;
Audio: 20 Hz to 50 KHz
Maximum RF
Input —
1.1 volts at 60 Hz
Insertion Loss — Less than 2 dB over the DC-to-10-MHz frequency range
Return Loss — Greater than 15 dB over the DC-to-10-MHz frequency
range
Common-Mode
Rejection —
Greater than 40 dB at 10 MHz