AT&T 993 user manual Technical specifications

Models: 993

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Appendix

Technical specifications

Operating temperature:

32°F — 122°F

 

(0°C — 50°C)

 

 

Power adapter input:

AC 120V 60Hz

 

 

Power adapter output:

AC 9V, 300mA

 

 

Backup battery:

Alkaline 9V

 

 

Headset jack:

2.5mm, 32-150 ohm

 

 

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AT&T 993 user manual Technical specifications