Multi-tech-systems ISIHP-2U Manuel d'utilisateur télécharger pdf (Page 9)

Introduction

MultiModemISI Hybrid Series, ISIHP-2S/2U/4S/4U/4SD 9

Communication Protocols for ISIHP Ports

Ports on the ISIHP card can be associated with different protocols, as

follows:

Auto-Protocol. Modem or terminal adapter automatically negotiates

with host to operate using the hosts current protocol.

Central Site Modem. Common designation for analog modems built

into the ISIHP card. These are V.90 modems. For the ISIHP-2S/2U,

the last four modems should be designated as Central-Site modems;

for the ISIHP-4S/4U, the last eight modems should be designated as

Central-Site modems. (See Port/Device table on previous page.)

MultiLink PPP async. This protocol allows the functional bundling

together of three WAN ports so they function as a single high-

bandwidth data pipeline using only one IP address. Bundling occurs

on demand when the needed bandwidth exceeds that available on a

single circuit.

PPP async. (Point-to Point Protocol, asynchronous) Protocol

allowing computers a dial-up connection to the Internet. PPP includes

error detection, data compression and other improvements over Serial

Line Internet Protocol (SLIP) connections.

V.120. Terminal rate adaptation protocols. These apply to ISDN B-

channels when using a V interface. This protocol includes V.110.

X.75. An international standard that allows X.25 packet-switched

networks to communicate with each other. X.75 is a gateway protocol

for interconnection of X.25 public networks.

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Multi-tech-systems ISIHP-2U Manuel d'utilisateur Page 9