In an example, when a short circuit occurs on the system line 130, the current monitor 220 may detect a change in the current along the connection line 200. The output voltage of the current monitor 220 may change based on the change in current. For example, a normal output signal on the output signal line 254 may be at a baseline voltage (e.g., 2.5 volts (V)), and when a voltage on the output signal line 254 increases (e.g., towards 5V) or decreases (e.g., towards 0V), the change in the voltage on the output signal line 254 is representative of the change in the current on the connection line 200.

For example, when a short circuit occurs on the system line 130, the current detected by the current monitor 220 may increase resulting in the output signal (e.g., a voltage level) on the output signal line 254 to increase/decrease depending on a location of the short circuit. For example, if a short circuit occurs on the side of the communication interface 202, the current on the detection line 200 may increase in the direction of the communication interface 204 towards the communication interface 202 (e.g., right to left in FIG. 2), and if a short circuit occurs on the side of the communication 204, the current on the detection line 200 may increase in the direction of the communication interface 202 towards the communication interface 204 (e.g., left to right in FIG. 2).