APPENDIX A
User’s Manual
Computer 15 VDC 5.0 amperes
Built-in Modem
Network control unit (NCU) |
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Type of NCU | AA |
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Type of line | Telephone line (analog only) | ||
Type of dialing | Pulse |
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| Tone |
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Control command | AT commands |
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Monitor function | Computer’s speaker |
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Communication specifications |
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Communication | Data: | Full duplex | |
system | Fax: | Half duplex | |
Communication | Data |
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protocol |
| V.21/V.22/V.22bis/V.32 | |
| (Former CCITT) | /V.32bis/V.34/V.90 | |
| Bell |
| 103/212A |
| Fax |
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| 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 |
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| 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 |
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| Fax |
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| 2400/4800/7200/9600/12000/14400 bps | ||
Error correcting | MNP class 4 and | ||
Data compression | MNP class 5 and | ||
