Wise TSW200E1, Руководство пользователя

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TSW200E1
5 - The E1/G.704 Module
When the E1/G.704 is selected, the screen shown below is displayed. This screen allows the
user to select the operating mode.
MODULE ENTER MORE
F1 F2 F3 F4
E1/G.704
TX/RX FRAMED
THROUGH FRAMED
MUX
DEMUX
MONITOR
The next screen is reached with <F4> (MORE). It allows selection of more operating modes,
as follows.
BACK MODULE ENTER
F1 F2 F3 F4
E1/G.704
FREQUENCY/ LEVEL
ROUND TRIP DELAY
To alternate between these two menu screens, use <F4> (MORE) or <F1> (BACK). Press
<F2> (MODULE) to go back to the Module screen.
To select one of the available modes on any of these two screens, place the cursor at the
desired line, using the ↑ or ↓ keys. Then, press <F3> (ENTER). The first setup screen for the
selected mode will be displayed. The following subsections describe the operation of each mode.
In this module, the signal generation and analysis are done in a framed (structured) way. The
signal is generated at 2048 Kbps. The user can choose to use CRC or not (as in ITU-T Rec. G.704)
and to use 30 or 31 channels.
The E1/G.704 module performs the error analysis for one or more timeslots, counting:
•
errored bits (BIT ERROR)
•
errored blocks (BLK ERROR)
•
FAS ERROR
•
CRC ERROR
•
E-BIT and
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