Positron Teleline Isolator 7501-16A, Description And Installation

Page: 15 / 26

Plug-in OPX Card 11
7501-16A, B, C
4. Technical Specifications
For a listing of the card’s electrical specifications, refer to Table 1. For a listing of
the card’s physical specifications, refer to Table 2.
Table 1 Electrical Specifications (measured at 77°F or 25°C,
50% R.H.)
Parameter Specifications
7501-16A 7501-16B 7501-16C
ISOLATION DATA
Isolation resistance 100 000 M
Ω
100 000 M
Ω
100 000 M
Ω
Metallic surge 3 kV max 3 kV max 3 kV max
Insulation voltage 30 kVrms (42 kV
peak) 30 kVrms (42 kV
peak) 30 kVrms (42 kV
peak)
SUPPLY VOLTAGE Floating: 105 to
150 V dc Grounded: -21 to
-27 V dc Grounded: -42 to
-56 V dc
SUPPLY CURRENT 55 mA maximum 350 mA
maximum 125 mA
maximum
POWER DISSIPATION
INSIDE SHELF 6.2 W maximum 8.5 W maximum 6 W maximum
MAXIMUM VOLTAGE TIP
TO RING ±150 V dc ±150 V dc ±150 V dc
MAXIMUM LOOP CURRENT ±100 mA
continuous ±100 mA
continuous ±100 mA
continuous
MAXIMUM LOOP POWER 5W 5W 5W
RESPONSE TIME (subscriber
to line, or line to subscriber) <1 ms <1 ms <1 ms
SERIES RESISTANCE Series resistance
of 25
Ω
is added
to the telephone
loop.
Series resistance
of 25
Ω
is added
to the telephone
loop.
Series resistance
of 25
Ω
is added
to the telephone
loop.