ADTRAN DSU 56/64, Руководство пользователя

Страница: 24 / 44

Chapter 2. Installation
2-2 DSU 56/64 User Manual 61200062L1-1
Power Up
The DSU 56/64 is equipped with a captive six-foot power cord that
is terminated with a three-prong plug for connecting to a grounded
power receptacle.
CONFIGURATION
The DSU 56/64 has eight options for controlling the operation of
both the network and DTE interfaces. These options are selected by
setting individual switches on either position DIP switch that is
accessible from the rear panel. A chart showing the options and
switch settings is attached to the bottom of the unit.
Clear To Send (CS) - SW 1
Down - Normal
In the down position, CS follows the RS lead with the selected
amount of delay. The only exceptions to this occur when network
or test conditions prevent data from being transferred over the DTE
interface. During these conditions CS is turned off.
Up - On
CS is forced on all the time.
Clear to Send Delay (CS Delay) - SW 2
Switch Position
RS to CS Delay
Down - Short
250
µ
s + 125
µ
s
Up - Long
10
ms + 125
µ
s
Ensure that a grounded, 115 VAC, 60 Hz receptacle is used for powering
the DSU 56/64 unit.