6
TS54TDR/TS53 PRO Test Sets
Users Guide
+
The polarity icon shows when the polarity of the dc voltage across the line’s Tip and Ring wires is
reversed. If you connect the red clip to a more positive voltage than the black clip (reverse polarity),
+ shows on the display. If you connect the red clip to a more negative voltage than its black test
lead, the icon does not show. The test set operates correctly if the polarity is reversed.
!
|
!
shows when the test set is in Monitor mode (on-hook). | shows when the test set is in Talk mode
and connected to an active telephone line (off-hook). The icon alternates between on-hook and off-
hook when a call comes in.
MUTE The MUTE icon shows when the test set is in mute mode. See the description of the
N key on
page 8.
%
The speaker icon shows when the speaker is on. To turn the speaker on or off, press s. See the
description of the s key on page 9. The speaker stays on until you turn it off or until the test set
turns off.
&
The high-volume icon shows when the volume for the handset or speakerphone is set to a level of 5
or more. At lower levels, the icon does not show. In Monitor mode, this icon shows when you select
the high-volume level (level 8).
To adjust the volume of the speaker that is on, press C D.
Table 1. Display Icons (continued)
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