The Emergency Transfer Relay (ETR) port is a standard RJ-45 network port. Use the ETR port to connect to up to two 808A Emergency Transfer Panels. These panels provide basic telephone services in the event of system failure.

When the Emergency Transfer Relay (ETR) feature is activated, the green ETR LED is lit.

For more information on Emergency Transfer Relay, see Installing an 808A Emergency Transfer Panel and associated telephones.

For information on installing the 808A Emergency Transfer Panel, see 808A Emergency Transfer Panel Installation Instructions, which ships with the Emergency Transfer Panel.