ATG429EBPOperationManual
3‐6
June4,2015
Rev.A2
(17) ENT Key
IN EDIT Mode:
Completes an entry sequence. Until the ENT key
is pressed, an entry may be edited with the DEL
key. If an entry is not allowed for some reason
(out of range, illegal key), the old data will be
retained.
TX MODE (Non-Edit):
Resets the TX timer counters of each active slot
to their initial value. This allows the TX labels to
be synchronized in their output order if all have
the same word rate. They will be sent out in
descending TX block order (10 through 1), e.g.:
The user wants to simulate a DME LRU that
transmits 6 labels in bursts 100 msec. apart. The
user would enter the first label in the group in the
TX slot 10 with a word rate of 100. The second
label would go in the TX slot 9 with a word rate of
100. This would continue for the remaining labels
with the last label of the group being entered in
TX slot 5.
Once all the data has been entered correctly and
the user is ready to synchronize the labels, he
(she) should press the ENT key.
There will be no visible indication that anything
has occurred, but the words have been
synchronized and are being transmitted in bursts
of 6, 100 msec apart. If any data is changed later,
the ENT key should be pressed again to
resynchronize the words.
(18) Battery Charging Jack
Allows the internal batteries to be charged by
connecting to the battery charger furnished with
the 429EBP.
(19) Parallel Printer Output Port Allows connection to an IBM compatible parallel
printer using a standard IBM/CENTRONICS
parallel interface cable.
(20) D.O. Key IN EDIT MODE:
While in the EDIT mode, this key allows the
hexadecimal value `D' to be entered.
IN RX MODE:
Pressing this key when trap mode is first
activated (before entering the Trap Label) will
activate the DATA ONLY trap mode. This mode
expands the trap capacity to 8192 words,
however, no label or rate information is stored.
This means that the user must enter a trap label
when prompted. This mode will be cleared when
trap mode is turned off.
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