5
Physical Characteristics
bfp02.eps
Figure 2. Audio Control Keys
Mute key
Speaker key
Handset receiver
Volume key
Handset
microphone
Table 1. Test Set Audio Control Keys
Key
Description (refer to Figure 2)
MUTE
The
MUTE
key functions only when the test set is off-hook. When the test set is off-hook and being
used as a handset, pressing the
MUTE
key shuts off the handset’s microphone. This is useful in noisy
environments such as near heavy traffic. With the mute on, ambient noise is not picked up by the
test set’s microphone and therefore not transmitted to the receiver. When the mute is on, it is easier
to hear the person at the other end of the line and easier to hear static or noise on the line. Pressing
the
MUTE
key again turns the microphone on.
When the test set is off-hook and is in Speakerphone mode, pressing the
MUTE
key will shut off the
speakerphone’s microphone and will temporarily put the test set into a Receive-Only Loud Speaker
mode. This is a better mode for troubleshooting because it prevents the speaker from cutting out
when a medium to loud noise occurs in your vicinity. Pressing the
MUTE
key again will turn the
speakerphone microphone on.
The TS52PRO allows you to configure the test set to select the Receive-Only Loud Speaker mode as
the default mode (see "Make Receive-Only Loud Speaker the Default" on page 15). If you configure
the test set to enable the Receive-Only Loud Speaker mode, the Speakerphone will no longer be
available. After selecting this option, any time you turn on the speaker, when the test set is off-hook,
the Receive-Only Loud Speaker will be activated rather than the Speakerphone. When the unit is
configured this way, and the speaker is on, the
MUTE
key has no effect.
When mute is activated, the
MUTE
icon is shown on the display.
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