Peripiheral Component Interconnect (Pci) For Isihp Cards; Communication Protocols For Isihp Ports - Multitech ISIHI-2S User Manual

1.2

Peripiheral Component Interconnect (PCI) for ISIHP Cards

First developed by companies such as Intel
Component Interconnect (PCI) bus used by your ISIHP card provides high performance and is easy to use.
Because PCI devices contain registers with the device information required for configuration, full auto
configuration of PCI Local Bus add-in boards and components is supported. Performance factors include a
bus data path of 32 bits, and clock speeds of 33 MHz.
1.3

Communication Protocols for ISIHP Ports

Ports on the ISIHP card can be associated with different protocols, as follows:
Auto-Protocol
Auto-Protocol Callback
Central Site Modem
PPP async
V.120
X.75
TM , AT&T TM
Terminal adapter automatically detects and switches to use the protocol of the
client terminal adapter.
Same as Auto-Protocol except that it causes the host terminal-adapter to dial
back with the same protocol with which the client dialed in.
The digitally terminated V.90 modems built into ISIHx series cards (except the
4SD model). 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.)
(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.
Terminal rate adaptation protocols. These apply to ISDN B-channels when
using a V interface.
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.
and Digital Equipment Corporation
Chapter 1 - Introduction
TM , the Peripheral
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