Multitech BL-Series Specifications Page 119

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Multitech Modem Setup and Configuration Instructions
Multitech Modem Setup and Configuration
Instructions
Introduction
This document specifies how Multitech MultiModem II (MT2834BLK) modems can be set up and configured
for a variety of applications. This document focuses on their use over leased lines in Urban Systems'
applications.
References
The following list of references may prove useful if sufficient information is not contained herein.
Multitech Home Page
MultiModemII Home Page
Instructions for testing modems using a back to back leased line setup (also included below)
Multitech Support Page
Considerations
Things you should consider before beginning your modem configuration are:
1. What type of leased line will you be using - 2 wire or 4 wire?
2. Will you require a fallback PSTN connection if the leased line fails?
3. Are you using a data stream or protocol that is sensitive to inter-byte delays - UVMS protocol for
example?
4. What serial baud rate will be required at each end?
5. Is the data stream or protocol required to be 8 bit - for example UVMS and EEV?
Before you start Obtain the following:
Required modems
Small screwdriver/pen for changing dip settings
RS232 data leads (straight through, with no twist) to connect to your host application
PC with 2 COM ports, suitable for testing purposes
Terminal or Hyperterm software for testing purposes
MultiModemII Owner's Manual
Suitable connecting leads to allow back to back testing (RJ-11 to RJ-11 with pin 1 and 6 straight
through), and connection to BT leased line termination (RJ-11 to BT termination, 2 wire or 4 wire).
Procedure
The procedure outlined below will initially configure and test the modems with a back to back connection, and
then configure them for the final application.
file:///A|/html/multitech_config.htm (1 of 3) [27/06/2001 20:47:50]
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