Appendix

Technical specifications

REN1.5B

Power

Three AA batteries are required for

 

 

 

backlighting of the AUDIO ASSIST, MUTE

 

 

 

and

lights. The telephone must also

 

 

 

be connected to a telephone line for all

 

 

 

features to work.

 

 

 

 

 

Line feed voltage

48V +/- 2V

 

 

 

 

 

Line loop current

18mA to 100mA

 

 

 

 

Ringer levels

Off = 0dB

 

 

 

HI = 85dB

 

 

 

 

Compliance

FCC and UL approved

 

 

 

 

Memory

One-touch memory: 3 memory locations,

 

 

 

 

16 digits per location

 

 

 

Two-touch memory: 10 memory locations,

 

 

 

 

16 digits per location

 

 

 

 

 

 

16

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AT&T 929 user manual Technical specifications, REN1.5B