How to measure current using the CSR?
Some of the riser/extender cards offer a CSR option. The CSR (Current Sensing Resistor) is used to measure the current consumption of the unit that plugs into the riser/extender. The typical CSR has a value of 0.005 ohm, 1% tolerance and rated at 1/2W (10amp). Under operation, the user will simply measure the voltage drop across the CSR, then divide it by 0.005 to obtain the current. I=V/R=V/0.005. A good DMM (Digital Multi-Meter) of 4 digit accuracy is recommended. A DMM with 4 point probes would be excellent. Each CSR can handle only one power rail. Some extenders have multiple CSRs to handle multiple powers. TQ17: Adex Flexible cable extender configuration Most of the Adex’s flexible cable extenders can be ordered in Female to Male, Female to Female, and Male to Male configurations. The extender cable construction can be either swap or non-swap. The standard extender is Female to Male, with a connector at one end, and a gold finger at the other end, and it is not swapped. However, f
