This read-write INTEGER sets the administrator's desired hot-swap state for a module: on(1) meaning it may be used, or off(2) meaning it is administratively disabled regardless of whether it is physically present. An admin would set this to off before physically removing or replacing a module, so the system does not raise spurious alarms when the module's operational status subsequently goes down. For example, before pulling a line card for maintenance, the admin sets this object to off(2) for that module slot to gracefully take it out of service first.