Multi-Tech MultiModem ISIHI-2S, Руководство пользователя

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44 MultiModemISI Hybrid Series, ISIHI-2S
Chapter 3—Software/Driver Installation
Configuring the Terminal Adapter
Before you connect the ISIHI-2S to your network terminator, you must configure it to
match your ISDN service and the remote TA. You can use any of the following methods:
• I SDN TA Configuration Utility—recommended for computers with Windows 95 and
Windows NT, version 4.0 operating systems.
• ConfigMenu—recommended for computers with DOS or Windows 3.x and a VT100/
ANSI compatible terminal or data communication program that includes VT100/ANSI
terminal emulation.
• AT Commands—allow you to fine tune TA operation with AT commands and S-
registers. Enter these commands in your data communication program’s terminal
mode. AT commands are described in detail in the Chapter 4.
Before You Start
Consider the following choices before configuring your TA. Then record your choices
here and refer to them during configuration.
Network Configuration
• Network Switch Type _____________________
Select the network switch type your ISDN service uses at its local central office. You
can set the TA to NET3, AT&T 5ESS, NT DMS-100, or US National ISDN-1. If you don’t
know the switch type, get the information from your ISDN service provider.
AT command: !CO=
•
Data TEI _______________________________
The Data TEI is the TEI (terminal endpoint identifier) assigned to the data channel. You
can select Auto TEI, a fixed TEI, or Disable. A TEI is a number used by the central
office switch to uniquely identify each device that is connected to the network. When it
uses dynamic TEI assignments (Auto TEI), the central office switch assigns a TEI each
time the TA connects to the network. However, the ISDN service provider may assign a
fixed TEI at subscription time, in which case you must configure the TA with the fixed
TEI number. You also can disable the channel, which may be useful when multiple TAs
are attached to a network terminator bus. AT command: !D3=
•
Voice TEI ______________________________
The Voice TEI is the TEI assigned to the voice channel. You have the same choices as
for Data TEI: Auto TEI, fixed TEI number, or Disable. AT command: *!D3=
• SPIDs and DNs __________________________
The TA must be configured with the Service Profile Identifier (SPID). The SPID,
assigned by the local phone company, is for the specific BRI line where TA is attached.
The SPID field is empty prior to configuration. AT command: AT!C6= and AT*!C6
The Directory Number (DN) is the phone number another user would call to contact this
TA once it is attached to the ISDN. AT commands: AT!N1= and AT*!N1=
Note: SPIDs only apply for North American switch types.