ZyXEL Communications 2864 Series, Руководство пользователя, Страница: 20 / 267

1–4
The 2864 Series Standard Features
• Synchronous/Asynchronous operations for external stand alone models and
rack mount
models. (Parallel port interface is for asynchronous transmission
only)
• Asynchronous operations for PC internal card model.
• MNP class 4/5 error correction/data compression.
• V.42/V.42bis error correction/data compression. V.42 with selective reject.
• Extended AT command set.
• V.25bis async/sync command set.
• Operation on 2-wire dial-up line or 2/4-wire leased line. (4-wire leased line on
2864L only.)
• Auto-dial/answer and manual originate/answer.
• Tone/Pulse dialing.
• Dial tone, busy signal, and ringback detection.
• Programmable speaker volume control.
*. V33, V.29, V.27bis and V.26bis are only available in model 2864L for 4-wire
leased-line operation. The other operation modes are common to all models.
V.26bis works in half-duplex mode on 2-wire dial-up line.
†. 1800 Hz guard tone for V.22bis/V.22 answer mode, 6 dB below data signal level.
V.27bis
*
2 400 1 200 4-DPSK 1800
V.26bis
*
2 400 1 200 4-DPSK 1800
V.23 1200 / 75 1200 / 75 FSK
V.23 600 / 75 600 / 75 FSK
V.22bis
†
2 400 600 16-QAM 1200 Orig.
2400 Ans.
V.22
†
(BELL 212A)
1 200 600 4-DPSK 1200 Orig.
2400 Ans.
V.21 300 300 FSK
BELL 103 300 300 FSK
G3 FAX implemented according to T.30, V.17,V.29 and V.27ter.
Cellular Modes ZyXEL proprietary cellular modes; 14400 bps to 4800 bps.
Standard Bit rate
(+/-0,01%)
[bps] Baud rate
(+/-0,01%)
[baud] Modulation Carrier
frequency
[Hz]