Physical and Operating Environment
Operating relative humidity
The following are the cable specifications for the cables used
with the Cisco Unified IP Phone Expansion Module 7916:
• 2 RJ-11 jacks with 6-pin connectors for the interface cable
• 48-V power connector. The diameter of the center pin in the
Expansion Module power jack (Switchcraft 712A) is 0.1 in.
(2.5 mm). The center pin is positive (+) voltage. The
miniature power plug required to mate with the power jack
on the Expansion Module is a Switchcraft 760 or
Where to Find More Information
The following sections provide sources for obtaining additional
documentation from Cisco Systems.
Value or Range
32 to 104°F (0 to 40°C)
10 to 95% (noncondensing)
14 to 140°F (-10 to 60°C )
203 mm, 8.0 in.
121 mm, 4.75 in.
51 mm, 2.0 in.
366 g, 0.82 lb.
48 VDC, 40mA max