The experiment presents 3 MIL connector on the top of the box SIGNAL, PWR, TEST.

SIGNAL is used to connect the experiment to an RS-232 port of the E-link TM/TC interface. The connector used is MIL-C-26482, 8 pin socket, size 12, orientation normal, in order to fit the mating connector of the harness.

PWR is a 4 pin socket MIL connector (type: D38999/20WB4SA) used for experiment power up. It can be used either as a switch (with a special mating connector that has shorted pins) or as external power port.

TEST is a 4 pin socket MIL connector (type: D38999/20WB4SN) used to connect the experiment to a PC for service purpose and for a final pre-flight check. When this connector is populated, the unit can receive telecommands only from the service line, while data from the unit will be transmitted on both (telemetry and service channel).

The connectors have three different keys in order to avoid mistakes.