ZyXEL Communications Omni 56K II User Manual

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Omni 56K II and Omni 56K Plus II User’s Guide 
3-4 
 
 
 
 
 
 
 
       Specifications and Functions 
3.5  Omni 56K II and Omni 56K Plus II Capability 
The data/fax/voice feature of Omni 56K II and Omni 56K Plus II is described below: 
Table 3-3 Feature Description 
FEATURE DESCRIPTION 
Data 
2W Dial-Up Line 
Multi-auto/V.92/V.90/V.34bis/V.34/V.32bis/V.32/V.22bis/V.22/ Bell212A 
Hardware/Software Flow Control 
Error Control/Data Compression 
ZyXEL AT Command Set 
External Plug and Play for Windows 95/98/2000/Me/XP in RS232 mode 
External Plug and Play for Windows 98 /2000/Me/XP in USB mode 
Repeat Dial/Cyclic Dial 
Caller ID 
Distinctive Ring 
AT Protection for software application 
Fax 
V.17/V.29/V.27ter 
G3 T.30 Protocol 
EIA Class 1/ Class 2/ Class 2.0 command set 
Voice 
4 bit IMA ADPCM 
Remote Recording on PC storage 
IS-101 Command Set 
3.6   Data Function 
3.6.1 
Physical Layer Capability 
The Omni 56K II and Omni 56K Plus II modems are high performance universal modems capable of 
transmission speeds up to 56/48Kbps full-duplex on a 2-wire dial-up line. Universal compatibility covers a 
broad range of ITU-T and BELL standards. 
Table 3-4 Physical Layer Capacity 
STANDARD 
BIT RATE [BPS] 
BAUD RATE 
[BAUD] 
MODULATION CARRIER 
FREQUENCY [HZ] 
V.92 – upstream 
24000-48000 
8000 
PCM 
V.92 – downstream  28000-56000 
8000 
PCM 
V.90  28000-56000 
8000 PCM 0