Honeywell K9696V2 6.2.1Coaxial Cable, 6.2.2Grounding, Frequent Questions, Cabling to camera

Frequent Questions

6.2.1Coaxial Cable

Cabling to camera

For short camera-to-monitor distances (several hundred feet), use pre-assembled or field-connected lengths of RG59/U coaxial cable, with continuous shielding, using a BNC connector at each end.

Length limit

The cable length between a camera and the Multi-Media unit should be limited to 230 meters/750 feet. When installing coaxial cable, avoid loops, kinks, or wraparounds.

Table 17

Recommended maximum length of coaxial cable

Requirement	Length (feet)	Length (meters)
not amplified	750	230
amplified	3,400	1,035

Amplifier

As needed, optional video signal amplifiers can be used where longer distances separate cameras and monitors. Amplifiers at the camera output or along the coaxial cable run increase camera-to-monitor distance to a maximum length of 3,400 feet for RG59/U cable.

Coaxial cable checklist

•Terminate all unused inputs and unused outputs in their correct impedance.

•In long cable runs, use the minimum possible number of connectors. Each connector causes attenuation.

•In long transmission systems, use balanced coaxial cable.

•Splicing coaxial cables can cause reflection of the signal, resulting in distortion, when improper connectors are used.

•For outdoor applications, use weatherproof connectors.

6.2.2Grounding

Consult a certified electrician to avoid ground loops—video and audio— in your Multi system. Unbalanced coaxial cable runs between low power sources can create ground loop problems.

Do not remove the third wire on a three-prong electrical plug

(aka “lifting” the ground). This is a violation of local electrical codes, and goes against recommendations of the Underwriters Laboratory.

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