Connection system and simulator using such a connection system

A system for connecting a plurality of contacts to a computer system, the system comprising:

• a plurality of channels, each connected to a contact of the plurality of contacts and being selectively configurable in a first mode of acquisition of a signal present on the contact or in a second mode of application of a signal to the contact;
• and
• circuitry connected to the computer system by a computer network and configured to control the configured channels in the second mode of application of a signal as a function of data received from the computer system and to transmit to the computer system data representative of signals measured by the channels configured in the first mode,
• the circuitry further being configured to store in memory a correspondence table defining association of at least one channel with a function managed in the computer system and to modify the correspondence table upon command from a user interface,
• the circuitry including a first switch that connects the contact to a first voltage, and a second switch that connects the contact to a second voltage which is lower than the first voltage, and a third switch that connects the contact to one of the first voltage, the second voltage, and an open pin,
• the circuitry including a first amplifier including a first input that is connected directly to the contact and a second input that is connected to the contact through a resistor, the second input also being connected to the third switch, the first amplifier being configured to detect a short circuit of the channel of the contact,
• the circuitry including a second amplifier including a third input that is connected to the contact and to the third switch, the second amplifier being configured to measure a voltage of the contact in the first mode, and
• wherein either of the first switch or the second switch is closed in the second mode and each of the first switch and second switch are open in the first mode.