5.0 Making An Auxiliary Equipment
Interface Connection (Busy Lead Detection)
When needed, connect an industry standard non-electronic telephone device such as a FAX machine, an
industry-standard telephone, or a data device, such as a modem, on a line ahead of the common equipment. The
system will detect an off-hook condition in the connected device and turn on the status light for the line at the
system telephones to indicate that the line is busy.
Each line board makes one auxiliary equipment connection available for use. This connection is at pins 1 and 6 of
the lines 1,2 jack and is associated with line 2 of that line board.
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6
5
4
3
2
1
Industry-Standard
Telephone Device
Such As: Fax
Machine, Model
2500 Telephone,
Modem, Etc.
(No A-Lead Control Required)
Line 1 Conn.
Line 2 Conn.
(Front View Of Jack)
Line Board
PLUS066
Making A Typical Auxiliary Interface Connection
IMI89–172
Installing The Loop Start Line Board
