Owner`s manual

Introduction
4 MultiModemISI Hybrid Series, ISIHI-2S/2U
elcome to Multi-Techs new MultiModemISI Hybrid Series,
model ISIHI-2S/2U, a multiport hybrid ISDN card for Remote
W
Access Server (RAS) applications. Included on the ISIHI-2S/2U are four
V.90/K56flex central site modems for incoming analog modem and fax
calls, as well as two terminal adapters. Each terminal adapter appears as two
ports to the server PC using the ISIHI-2S/2U. The terminal adapters identify
incoming analog calls and route them to the central site modems. The
ISIHI-2S/2U also supports dial-out applications via the modems or terminal
adapters.
The card features eight RAS ports using two Basic Rate Interface (BRI)
ISDN lines. The eight ports allow a server to accept any combination of
analog modem and digital ISDN calls, giving the user the flexibility to
customize the settings of the terminal adapters and modems. Since the two
BRI lines constitute only four Bearer channels, only four of the eight ports
can be active at any one time. The two terminal adapters handle the four
B-channels as four independent data connections (see diagram below).
RJ-45 jack
Com Ports
Line 1
Line 2
Modem
Modem
Modem
Modem
TA
TA
7
8
3456
3
4
3456
6
2
1
5
ISDN
RJ-45 jack
Introduction
Welcome and Product Description