Fluke 271-U 115V Product Manual - Page 26

Front Panel Connections, Rear Panel Connections

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271 Users Manual Front Panel Connections MAIN OUT MAIN OUT is the 50 Ω / 600 Ω output from the main generator. It will provide up to 20 V p-p into a high-impedance load or 10 V p-p into a matched 50 Ω / 600 Ω load. It can tolerate a short circuit for 60 seconds. Caution To avoid risk of damage to the instrument, do not apply external voltages to this output. AUX OUT AUX OUT is a TTL/CMOS level output synchronous with MAIN OUT. Symmetry is the same as that set for the main output but the phase relationship between MAIN OUT and AUX OUT is determined by the PHASE setting specified on the TRIGger menu. AUX OUT logic levels are nominally 0 V and 5 V from typically 50 Ω. AUX OUT will withstand a short-circuit. Caution To avoid risk of damage to the instrument, do not apply external voltages to this output. EXT TRIG EXT TRIG is the external trigger input for trigger, gate, sweep, FSK and hop operating modes. It is also the input used to synchronize the generator as a slave to an external master generator. Caution To avoid risk of damage to the instrument, do not apply external voltages exceeding ±10 V to this input. Rear Panel Connections CLOCK IN/OUT The function of the CLOCK IN/OUT socket is set from the SYStem menu as follows: INPUT The socket becomes an input for an external clock. OUTPUT This is the default setting. The internal clock is made available at the socket. When two or more generators are synchronized the master is set to OUTPUT and the signal is used to drive the CLOCK IN inputs of the slaves. PHASE LOCK When two or more generators are synchronized the slaves are set to PHASE LOCK. As an output the logic levels are nominally 1 V and 4 V from typically 50 Ω. CLOCK IN/OUT will withstand a short-circuit. When used as an input the threshold is TTL/CMOS compatible. 3-2 MyFlukeStore Shop for Fluke products online at: www. .com 1.888.610.7664

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271
Users Manual
Front Panel Connections
MAIN OUT
MAIN OUT
is the 50
Ω
/ 600
Ω
output from the main generator. It will provide up to 20
V p-p into a high-impedance load or 10 V p-p into a matched 50
Ω
/ 600
Ω
load. It can
tolerate a short circuit for 60 seconds.
Caution
To avoid risk of damage to the instrument, do not apply
external voltages to this output.
AUX OUT
AUX OUT
is a TTL/CMOS level output synchronous with
MAIN OUT
. Symmetry is the
same as that set for the main output but the phase relationship between
MAIN OUT
and
AUX OUT
is determined by the
PHASE
setting specified on the
TRIG
ger menu.
AUX OUT
logic levels are nominally 0 V and 5 V from typically 50
Ω
.
AUX OUT
will
withstand a short-circuit.
Caution
To avoid risk of damage to the instrument, do not apply
external voltages to this output.
EXT TRIG
EXT TRIG
is the external trigger input for trigger, gate, sweep, FSK and hop operating
modes. It is also the input used to synchronize the generator as a slave to an external
master generator.
Caution
To avoid risk of damage to the instrument, do not apply
external voltages exceeding ±10 V to this input.
Rear Panel Connections
CLOCK IN/OUT
The function of the
CLOCK IN/OUT
socket is set from the
SYS
tem menu as follows:
INPUT
The socket becomes an input for an external clock.
OUTPUT
This is the default setting. The internal clock is made
available at the socket. When two or more generators are
synchronized the master is set to
OUTPUT
and the signal is
used to drive the
CLOCK IN
inputs of the slaves.
PHASE LOCK
When two or more generators are synchronized the slaves
are set to
PHASE LOCK
.
As an output the logic levels are nominally 1 V and 4 V from typically 50
Ω
.
CLOCK IN/OUT
will withstand a short-circuit.
When used as an input the threshold is TTL/CMOS compatible.
3-2
Shop for Fluke products online at:
1.888.610.7664
www.
MyFlukeStore
.com