Multitech MT56DSU-R, Руководство пользователя

Страница: 24 / 64

MT56DSU-R Owner's Manual
24
3.1 Introduction
This chapter provides information on the operating functions of the
MT56DSU-R. During normal operation the MT56DSU-R requires no
operator intervention.
Many of the optional features of the MT56DSU-R are selected by
setting a switch. Please refer to changing the default DIP switch
settings in Installation (Chapter 2) to change your particular
environment.
3.2 Options
The switchable features of the MT56DSU-R are:
• Data Rate • Clocking
• Async/Sync • RTS Forced On
• Anti-Streaming • DSR Forced On
• Elastic Store • Async Word Length
• System Status • Normal/Diagnostics
• Circuit Assurance
The MT56DSU-R has a pre-configured (default) setting for each of
these options when shipped from the factory. Chapter 2 of this
manual covers the changing of these option DIP switches. Chapter 4
covers the Normal/Diagnostic switch function. The following sections
describe the option in terms of the operation of the MT56DSU-R in a
DDS or other 4-wire network.
3.2.1 Data Rate
This option allows selection of the MT56DSU-R’s data transmission
rate. The data rate selected here must match the DDS or other 4-
wire network line rate that you subscribed for with your telco.
The default for this function is a data rate of 56K bps. (Refer to
Chapter 2 for option switch selection.)
3.2.2 Async/Sync
This option allows selection of the MT56DSU-R’s type of data
transmission used. The transmission type selected here must match
the DTE. The default is “sync” (synchronous data transmission).
82023101.p65 2/12/01, 2:52 PM 24