TTC T-BERD 107A, Справочное руководство

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4-20
SECTION 4
AUXILIARY
FUNCTIONS
Auto Learn — Enables the T-BERD 107A
to reassign addresses to line repeaters. Press-
ing the
LOOP UP or LOOP DOWN switch
transmits the Auto Learn loop code, which
clears all current addresses from the span
repeaters. Then, each repeater is automati-
cally assigned a new address based on its
position on the span. The first repeater is
assigned address 01, the second one is
assigned address 02, etc. Each repeater
acknowledges its new address by returning
an address or address code (bit errors). The
process continues until all the repeaters on
the span have been assigned a new address
(no more address or address codes are
received).
Auto Query — Enables the T-BERD 107A
to query each line repeater on the span for
its address. Pressing the
LOOP UP or LOOP
DOWN switch transmits the Auto Query
loop code, which sequentially queries each
line repeater for its address. The first line
repeater responds with its address or an
address code (bit errors). If an address code
of 555 is displayed, the repeater has no
assigned address. The RESULTS display
is blanked for approximately five seconds.
Then, the second line repeater responds
with its address. The address and blank
display cycle continues until each line re-
peater has responded with its address. If the
process is interrupted for any reason, the
Auto Query loop code must be transmitted
again, and the process begins again with the
first repeater on the span.