Instruction manual

Headset Adapter Adjunct
The 500A Headset Adapter is powered locally by a 2012D Transformer, which plugs into a
115V ac receptacle.
Power from the transformer is applied to the voice terminal mounting
cord via a 400B2 adapter at the wall jack and conducted to the 500A on its connecting cord.
Refer to “Voice Terminal Adjunct Power Supplies” in Section 4 for additional information.
The 502B Headset Adapter does not require supplemental power, except when used with a
34-Button Deluxe, 22-Button BIS, 34-Button BIS, or BIS with Display voice terminal, or when
located more than 200 feet from the switch.
Detailed headset adapter connection information is provided in the following figures:
● Figure 2-30—
Typical Headset Adapter to 7300H Series Voice Terminal Connections
Not Requiring Auxiliary Power
● Figure 2-31
—Typical Headset Adapter to 7300H Series Voice Terminals Connections
Requiring Auxiliary Power
● Figure 2-32—Typical Headset Adapter Connections for 12-Button MET Sets
MET Headset Adapter:
Use of a headset with
Adapter (18 inch cord) or
a 10-Button
a JS0180-4A
MET voice terminal requires a JS0180-3A Headset
Headset Adapter (8 foot cord).
Figure 2-29. 500A/502B Headset Adapter
2-195