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COMSPHERE 3821Plus Modem
D-2 February 1998 3821-A2-GB20-30
Table D-1
(2 of 2)
Model 3821
Plus
Technical Specifications
Specifications Description
ENVIRONMENT
Operating Temperature
Relative Humidity
Shock and Vibration
Storage Temperature
32°F (0°C) to 122°F (50°C)
5% to 90% (noncondensing)
Withstands normal shipping
–4°F (–20°C) to 158°F (70°C)
DTE INTERFACE
25-pin D-subminiature
connector
EIA-232-E/ITU-T V.24
POWER CONSUMPTION 7.5 watts (typical)
DIMENSIONS
(Modem Card)
Height
Width
Depth
Weight
7.37 inches (18.7 cm)
1 inch (2.5 cm)
14.37 inches (36.5 cm)
1 pound 6 ounces (.62 kg)
TRANSMIT LEVEL
Dial Line
Leased Line
Permissive (–9 dBm through –32 dBm in 1-dBm increments)
0 through –15 dBm in 1-dBm decrements
VOICE FREQUENCY
LINE REQUIREMENTS
2-wire dial (PSTN) or 2-wire leased line
PSTN INTERFACE RJ21X
PRIVATE LINE
INTERFACE
50-pin mass termination