AT&T 1177 Answering Machine User Manual


 
43
Appendix
Technical specifications
RF FFrequency BBand
(Handset tto BBase)
912.75MHz — 917.10MHz
Modulation
FM
RF FFrequency BBand
(Base tto HHandset)
2410.2MHz — 2418.9MHz
Channels
30
Operating TTemperature
32°F — 122°F
0°C – 50°C
Base UUnit VVoltage
(AC VVoltage, 660Hz)
108 — 132 Vrms
Base UUnit VVoltage
(AC AAdapter OOutput)
9 Vdc @600 mA
Handset VVoltage
3.1 — 4.2 Vdc @400 mAh
91-005677-041-000.ATT1477.qxd 2/13/1950 7:21 PM Page 43