Avaya Definity Telephone Wiring

8400-series 4-wire wiring diagram

400B2 Adapter to power optional speakerphone

400B2 adapter 400B2 wiring diagram

[Port Circuit Pack and Telephone Pin Designations ] [Main Distribution Frame Connections (110-type)]
To make connections to test at the 110-style jacks at the main distribution frame, use Independent Technologies ITC-3502B 8-Wire 110 Block to RJ-45 adapter (Jensen product no. 43-316).

John Neuhaus, john at jneuhaus.com, Saturday, January 12, 2008