Applications For 2 Mbit/S Signals; Monitoring 2 Mb/S, Full Check (Approx. 25 Min - Wavetek ANT-20 Operating Manual

ANT-20SE
3

Applications for 2 Mbit/s signals

Most of the applications described in the following sections are also available as "quick check"
versions.
3.1

Monitoring 2 Mb/s, full check (approx. 25 min)

Monitoring an unknown 2 Mbit/s signal
Fig. SA-1
Connecting the item under test
The balanced or coaxial sockets of the item under test are connected to input [12] or [14] of the
receiver for the "Monitoring 2 Mb/s, full check (approx. 25 min)" application.
Tip: If the item under test is not equipped with a PMP socket, you can connect the ANT-20 to
Measurement
The application automatically detects the correct impedance and receive level (ITU-T or PMP)
and starts the line type test. This determines the type of signal present at the receiver input:
• PCM31
• PCM31CRC
• Unframed
• AIS_2M
• Unknown (if none of the above signal types could be clearly determined, e.g. because a
different bit rate was present)
The clock frequency deviation of the incoming signal is measured. The measured value will be
displayed if it is more than ±2 ppm.
Standard Applications
Monitoring an unknown 2 Mbit/s signal
a "hot" line using a probe (e.g. TKD-1 from Wavetek Wandel Goltermann).
ANT-20 NEXT
SA-5