This is a write action that lets an admin force every relay on the splitter back to normal operation mode in one step; unchanged(1) leaves relays as they are, reset(2) triggers the mass reset. Admins use this as an emergency or maintenance-cleanup control to clear any lines left in a bypassed/closed state, rather than resetting each relaySlot/relayPort individually. For example, after a batch of loop tests across many lines, a technician could set this to reset(2) to instantly return every relay to normal without walking the whole relayTable.