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The basic Digit Grabber dialed digit meter
monitors and analyzes DTMF and dial pulse
signaling through any telephone or wireless
communications system. It is a high-impedence
(100K ohms) instrument that bridges the line
without loading. Tones are heard through the
monitor speaker as they are displayed.
In the display mode, digit strings of up to 32
characters are captured and frozen on the large,
alphanumeric screen. When more than 32 digits
appear the first digits drop off to allow the
latest characters to be shown. In the analysis
mode, interdigit timing and tone burst timing are
displayed for tone dialing and make/break ratio
and pulses per second are displayed for pulse
dialing. Digit Grabber operates on a standard 9V
battery.
The basic model is a valuable test tool for
technicians working with store and forward
dialers; security systems; keypad maintenance on
standard, mobile or cellular phones; and other CPE
items using tone digits for programming or
signaling.
The MF model is suited to carrier
troubleshooting of MF signaling, especially for
equipment used in Feature Group B or D service and
does not have an analysis mode. |
