Aeroflex 2945A - Fig. 2-12 Display of Forward;Reverse Data

EDACS REPEATERS
2-26
Fig. 2-12 Display of forward/reverse data
In the lower half, the display lists (in hexadecimal) the codewords that have been sent between the
Service Monitor and the repeater.
The number of times the codeword has been sent and received, and the identity of the codeword
are shown against each word.
The upper half of the display shows one of the codewords from the list in binary form. The
codeword displayed is highlighted in the list and is selected by using either the [up] or [down]
keys, or by using the variable rotary control. Above this window is shown the full title of the
codeword.
The binary display of the codeword is presented in two parts.
The small window labeled ‘PARITY’ shows the contents of the parity field of the codeword. This
field consists of the 12 least significant bits of the codeword.
The larger window, comprising of three character lines, displays the main part of the codeword
which consists of 20 or 28 bits.
The lower line shows the contents of the codeword (without parity), with the most significant on
the left. The upper two lines show the meaning of the bits.