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ISDN 7507 Display Terminal
Cords
Two cords are supplied with the 7507 display terminal: a coiled 9-foot modular handset cord and
a line cord. An optional 12-foot handset cord is available.
Ringing
The 7507 display terminal has electronic tone ringing with patterns that can be selected by using
the SELECT and CONFERENCE/RING buttons in sequence. The volume is controlled by the
Volume arrow buttons.
Mounting Options
The 7507 display terminal comes equipped with a nonadjustable desk stand.
Color Options
The base of the 7507 display terminal is always black. The top of the 7507 display terminal is
available in misty cream or black.
Distance Limitations
The maximum signaling distance from the port board to the work location jack based on DIW 24
AWG cable is:
Terminating resistor in work location—1900 feet
Terminating resistor in satellite closet—1600 feet
Power Requirements
The 7507 display terminal requires an auxiliary power supply. The power supply can be provided
at a central location or may be collocated with the 7507 display terminal. If the auxiliary power
supply fails or loses its power, the 7507 display terminal will provide basic voice service with the
phantom power provided by the switch.
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