Bedienungsanleitung Fluke networks TS23 PRO (Seite 13 von 22) (Englisch)

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How to Turn the Test Set On and Off

How to Turn the Test Set On

and Off

To turn on the test set, press Q. To turn off the test

set, hold down

Q for 3 seconds. To set the time

period for the automatic shut-off function, see "Test

Set Timeout" on page 12.

Automatic Power-Down

To save battery power, the test set automatically turns

off after 2 minutes of inactivity. The timer starts again

when you press a key or when the test set is in Monitor

mode and receives a call.

How to Use the Monitor and

Talk Modes

The test set has two basic modes of operation: Talk

mode and Monitor mode. Talk mode is used for off-

hook operations (such as dialing verification, automatic

number identification, and audio quality verification).

Monitor mode is for audio monitoring of the Tip and

Ring pair while on-hook. In Monitor mode, the test set

has a high input impedance. This reduces the possibility

of disruptions to conversations or data while you

monitor the line.

Warning

When testing circuits that are close to a

battery source, clipping onto a line may

cause loud pops in the receiver. Holding the

receiver tightly against your ear may cause

acoustic shock. The test set is designed to

rest comfortably on the shoulder with some

space between the receiver and the ear. It

should be used in this position when

working close to a battery source.

Shorting the Tip and Ring leads together

while connected to a data line will disrupt

data on the line.

Monitor Mode

To put the test set in Monitor mode, press Q.

In Monitor mode, the test set is always on-hook. The

test set draws no direct current from the line and it

transmits no signals to the line. In this mode, the test

set has a high ac input impedance. This reduces the

possibility of disruptions to conversations or data while

you monitor the line. You can use either the handset

receiver or the speaker to monitor a line.

To use the speaker to monitor the line, press

s. This

disables the handset receiver and sends all audio

signals to the speaker. Two volume levels are available.

Press

v to toggle the volume level. Press s

again to turn off the speaker and monitor signals

through the handset receiver.

In the Monitor mode, the test set is typically used for

one or more of the following procedures:

•

Verification that a line is idle when looking for a

line to borrow

•

Listening for noise on the line

•

Hunting for tracer tones

•

Measuring the dc voltage on the line

Talk Mode

To select Talk mode, press P. When off-hook, the

test set operates like a standard telephone and is

typically used to verify the proper operation of a voice

telephone line or to establish temporary

communications on a “borrowed pair”.

Low Voltage Lockout

If you press

P, and the test set sees 4 V or less, the

TALK LED is red and the test set will not go off-hook.

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Fluke networks TS23 PRO Seite 13

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