Enterasys Networks CSX7000 Manuel d'utilisateur télécharger pdf (Page 67)

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Central Site Remote Access Switch 67

ARDWARE

VERVIEW

System Adapters

DIGITAL MODEMS

The CyberSWITCH supports the DM-8, DM-24, DM-24+ and DM-30+ Digital Modem adapters.

These adapters allow the CyberSWITCH to receive calls from asynchronous PPP remote devices

connected by modem. They also provide a vehicle for remote analog console access.

Available Digital Modem adapters include the following type and quantity of modems on a single

adapter card:

The Digital Modems support the following remote modem options:

All modem adapters:

• V.34+ (33.6 Kbps)

• V.34 (28.8 Kbps)

• V.32 bis (from 300 bps to 14.4 kbps)

• MN4 (with error control)

• MN5 (with data compression)

• V.42 (with error control and data compression)

DM-24+ and DM-30+ modem adapters only:

• K56Flex (56 Kbps) (firmware may be upgraded to the ITU V.90 standard)

The number of adapters in a system is limited by the number of ISDN channels and adapter slots

available. A maximum of four DM-8s or three DM-24s, DM-24+s, or DM-30+s can be installed and

configured at one time. You may combine DM-8s and DM-24s in the same system as long as you

do not exceed a maximum of three cards.

Note: Digital Modem adapters are also known as DIG-8 (DM-8), DIG-24 (DM-24), DIG-24+ (DM-

24+), and DIG-30+ (DM-30+).

For the DM-24+ and DM-30+, no “+” follows the Digital Modem adapter designation in

CFGEDIT. Do not be alarmed; in the case of the DM-24 and DM-24+, the system

automatically distinguishes between the two different types of modems.

DM-8 eight V-34+ (33.6 Kbps) modems

DM-24 twenty-four V-34+ (33.6 Kbps) modems

DM-24+ twenty-four K56Flex (56 Kbps) modems

DM-30+ thirty K56Flex (56 Kbps) modems

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Enterasys Networks CSX7000 Manuel d'utilisateur Page 67

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