Black Box TS560A, Руководство пользователя

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4.2.4 T
ONE
G
ENERATOR
The tone mode generates audio tones for use with tone
tracers on all pairs, a selected pair, or a selected pin. The
signal generated on a pair has the signal on one pin and
the complement of the signal on the other pin of the
pair, yielding a nominal 10 volts peak-to-peak across the
pair. The SEL button selects one of the four tone sounds
provided. Use the up/down arrows to scroll through the
pairs and pins that have signals on them. All pins not
being driven are held at tester ground. The LAN
Solution Network Tester will automatically turn off in 30
minutes.
4.3 Network Test Modes
4.3.1 F
LASH
L
INK
LED
The Flash Link LED mode starts with the Voltage Check
test (see
Section 4.1
), then searches for link pulses on
the tester’s jack, automatically configuring the interface
to connect to a hub, switch, or NIC (similar to auto-
MDI/MDI-X) if one is found. An audio tone signal is
sent down the cable, so the cable can be located at the
other end with a tone-tracer-established link to indicate
the link status. Once a link is established, the Link LED
on the tester will light and begin blinking at the same
CHAPTER 4: Functional Description