User's Manual
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Conference Phone
993
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Appendix
T
echnical specifications
Operating t
emperature: 32°F — 122°F
(0°C — 50°C)
Power adapt
er input: AC 120V 60Hz
Power adapt
er output: AC 9V
, 300mA
Backup batt
ery:
Alkaline 9V
Headset jack:
2.5mm, 32-150 ohm
1
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