Power requirements, Built-in modem, Power requirements built-in modem – Toshiba Satellite M40 (PSM40) User Manual
Page 172
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User’s Manual
A-2
Specifications
Power Requirements
Built-in Modem
AC adaptor
100-240 volts AC 
50 or 60 hertz (cycles per second) 
Computer
15 VDC 
5.0 amperes 
Network control unit (NCU)
Type of NCU
AA
Type of line
Telephone line (analog only)
Type of dialing
Pulse
Tone
Control command
AT commands
EIA-578 commands
Monitor function
Computer's speaker
Communication specifications
Communication
System
Data: Full
duplex
Fax: Half
duplex
Communication
protocol
Data
ITU-T-Rec
(Former CCITT)
Bell
Fax: 
ITU-T-Rec
(Former CCITT)
V.21/V.22/V.22bis/V.32/
V.32bis/V.34/V.90
103/212A
V.17/V.29/V.27ter/V.21 ch2
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