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From July 1st, 2024, GradConn & GCT (both Aloco Group companies) will merge under the GCT brand. Please click here to find out more.

Tell me about card detection switch functionality?

SIM Connectors are available with or without card detection switch functionality to help identify whether a SIM card is in position.

If the SIM connector has card detect functionionality, it is either one of two switch types: 

Normally Open (NO) - This means the contact configurtion is open (circuit is broken) and the circuit is closed when a SIM card is inserted Normally Closed (NC) - The circuit is closed until the SIM card is inserted 

Both configuration are effective and simply depend on your application as to which option works best.

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