Cisco AS5200 - Universal Access Server Manuel d'utilisateur télécharger pdf (Page 13)

Cisco AS5200 Universal Access Server Overview 1-13

12-Port Modules

56K 12-Port Module

The 56K 12-port module uses Rockwell’s K56Flex technology. The module can send data

at up to 56 kbps and receive data at up to 33.6 kbps. Connections at 56 kbps start as analog,

are converted to digital, and are not converted back to analog at the service provider.

Because one conversion (from digital to analog) is omitted, speeds of up to 56 kbps are

possible. However, the actual speed that you can achieve with the module depends on the

condition of your local telephone network.

Note The initial release of the 56K module operates at up to 33.6 kbps (V.34) and offers

a ﬁrmware upgrade to enable 56 kbps (K56Flex) when it is available.

The 56K 12-port module supports the following protocol and modulation standards:

• K56Flex modulation at 56000, 54000, 52000, 50000, 48000, 46000, 44000, 42000,

40000, 38000, 36000, 34000, and 32000 bps

• ITU-T V.42bis compression and MNP Class 5 data compression

• ITU-T V.42 error correction (including MNP Class 2, 3, and 4 and LAPM)

• ITU-T V.34 33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000,

9600, 7200, 4800, and 2400 bps

• ITU-T V.32 at 9600 and 4800 bps

• ITU-T V.25 modem standard

• ITU-T V.23 in two modes: split speed and half-duplex 1200 bps

• ITU-T V.22bis at 2400 bps

• ITU-T V.22 at 1200 and 600 bps

• ITU-T V.21 at 300 bps

• Bell 212A at 1200 bps

• Bell 103A at 0 to 300 bps

• MNP Class 10 ACE

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Cisco AS5200 - Universal Access Server Manuel d'utilisateur Page 13