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MultiCam Boards Documentation > GRABLINK series Documentation > GRABLINK Base Handbook > Camera Link Electrical Specification > Power over Camera Link > PoCL Cable Requirements
PoCL Cable Requirements

Current Capacity for PoCL Cables

Camera Link Standard (version 2.0) requires that the power and drain wires within a cable assembly shall be capable of handling 1.0 A camera current under fault conditions. The power and drain wires shall be at least AWG 28 or larger diameter.

Conductor Resistance for PoCL Cables

Camera Link Standard (version 2.0) requires that the DC resistance of any power wire or drain wire shall not exceed 2.5 Ω for the length of the cable assembly.

Note. The overall voltage drop on the loop is 1.0V ensuring at least 10V at the camera side for the minimal supply voltage of 11 V.

Considering that AWG 28 conductors have a typical resistance per unit length of 0,21 Ω/meter, cables using this wire gauge satisfy the above requirements for cable lengths up to 11 meters.

Note. The 10V minimal voltage requirement at the camera side can be satisfied with longer cables if the minimal supply voltage is higher than 11 V or if the camera draws less than 400 mA.