HSM Status indicators (nShield Solo and Solo XC)

This guide covers the following HSMs:

  • nShield Solo

  • nShield Solo XC

The blue Status LED indicates the operational status of the module.

Status LED Description


Status: Power off

There is no power supply to the module. Check that the module is correctly inserted in its PCIe slot, then restart the computer.

On, occasionally blinks off.

Status: Operational mode

The HSM is accepting commands. The more frequently the Status LED blinks off, the greater the load on the module.

Flashes two short pulses, followed by a short pause.

Status: Initialization mode

Used to create and load Security World data on the HSM and to erase Security World from the HSM and return it to factory state.

Flashes two long pulses followed by a pause.

Status: Maintenance mode

Used for reprogramming the module with new firmware. The module only goes into Maintenance mode during a software upgrade.

Flashes SOS, the Morse code distress code (three short pulses, three long pulses, three short pulses).

After flashing SOS, the Status LED flashes an error code in Morse code.

Status: Error mode

If the module encounters an unrecoverable error, it enters Error mode. In Error mode, the module does not respond to commands and does not write data to the bus.

For HSMs running firmware Remote Administration 2.61.2 and above, the error code is also reported by the enquiry utility in the hardware status field of the Module.

If a command does not complete successfully, the module normally writes an error message to the log file and continues to accept further commands. It does not enter Error mode. For information about error codes, see the User Guide for your HSM.

Use the mode switch to move between Maintenance, Operational, and Initialization modes. See Mode switch and jumper switches for more information.