APPENDIX A

User's Manual

Computer 15VDC

 

5.0amperes

 

 

Built-in Modem

 

 

 

Networkcontrolunit(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

Data:

Full duplex

system

Fax:

Half duplex

Communication

Data

 

 

protocol

ITU-T-Rec

 

V.21/V.22/V.22bis/V.32

 

(Former CCITT)

/V.32bis/V.34/V.90

 

Bell

 

103/212A

 

Fax

 

 

 

ITU-T-Rec

 

V.17/V.29/V.27ter

 

(Former CCITT)

/V.21 ch2

Communication

Data transmission and reception

speed

300/1200/2400/4800/7200/9600/12000/14400/

 

16800/19200/21600/24000/26400/28800/31200/

 

33600 bps

 

 

 

Data reception only with V.90

 

28000/29333/30666/32000/33333/34666/36000/

 

37333/38666/40000/41333/42666/44000/45333/

 

46666/48000/49333/50666/52000/53333/54666/56000

 

bps

 

 

 

Fax

 

 

 

2400/4800/7200/9600/12000/14400 bps

Error correcting

MNP class 4 and ITU-T V.42

Data compression

MNP class 5 and ITU-T V.42bis

A-2