5
CHAPTER 1: Specifications
1. Specifications
Cable Required:
Between Balun pairs: Unshielded twisted pair (UTP):
Construction Standard: Category 3 or higher;
Gauge: 24 AWG or lower;
Termination: RJ-45 plugs;
Pairs: 3 or more (6 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 RG59/U coaxial cable with a
BNC male connector on the Balun end, preferably the
cable supplied with the Balun;
Audio: (2) Standard RCA phono cables
Compliance:
FCC Class B, IC Class/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 8 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-8-MHz frequency range
Return Loss:
Greater than 15 dB over the DC-to-8-MHz frequency range
Common-Mode
Rejection:
Greater than 40 dB at 8 MHz
