This read-write enumerated value chooses which alarm relay(s) switch when the shock sensor reports an alarm condition: none, Relay 1, Relay 2, or both. An admin wires this to alert on physical impacts or tampering with the enclosure, such as someone striking or attempting to force it. If the rack sits in an area prone to accidental bumps from equipment carts, the admin sets cpqCmcSetupShockRelays to relay2(4) to route impact alerts to a lower-priority relay.