
APPENDIX A
User's Manual
Built-in Modem
Networkcontrolunit(NCU)
Type of NCU | AA |
Type of line | Telephone line (analog only) |
Type of dialing | Pulse |
| Tone |
Controlcommand | AT commands |
| |
Monitor function | Computer’s speaker |
Communicationspecifications
Communication | Data: | Fullduplex | |
system | Fax: | Halfduplex | |
Communication | Data |
|
|
protocol |
| V.21/V.22/V.22bis/V.32 | |
| (FormerCCITT) | /V.32bis/V.34/V.90 | |
| Bell |
| 103/212A |
| Fax |
|
|
|
| V.17/V.29/V.27ter | |
| (FormerCCITT) | /V.21ch2 | |
Communication | Data transmission and reception | ||
speed | 300/1200/2400/4800/7200/9600/12000/14400/ | ||
| 16800/19200/21600/24000/26400/28800/31200/ | ||
| 33600bps |
|
|
| Data reception only with V.90 | ||
| 28000/29333/30666/32000/33333/34666/36000/37333/ | ||
| 38666/40000/41333/42666/44000/45333/46666/48000/ | ||
| 49333/50666/52000/53333/54666/56000bps | ||
| Fax |
|
|
| 2400/4800/7200/9600/12000/14400bps | ||
Transmitting level |
|
| |
Receiving level |
|
| |
Input/output | 600ohms±30% |
| |
impedance |
|
|
|
Error correcting | MNP class 4 and | ||
Data compression | MNP class 5 and | ||
Power supply | +3.3V (supplied by computer) |