User`s guide

3.3 Product feature:
Screen image capture
To illustrate the screen image
capture feature, follow these steps:
1. On the PC, on the 8960 Web
control page, select the Get
Image icon. This button
retrieves a copy of the test set’s
current screen.
2. Click the image again to capture
a new screen (or refresh the
image). Normal Windows
functions are available for the
image. You can save the image
by right-clicking the image and
using the browser’s “Save
Picture As…” feature and
choosing to save the image in a
GIF or bitmap file format.
3. To close the image, click the X
in the upper-right corner of the
window.
3.4 Product feature:
Protocol logging
The E6701A GPRS lab application
enables the test set to log GPRS pro-
tocol messages. The log results are
displayed in a web page format. You
control which messages are logged
by choosing observation points. Here
are some important points about the
log data.
• You are using the PC to access
this data.
• The data is formatted to be read
by a web browser, such as
Internet Explorer, in the PC.
Note: You cannot view the log
data on the test set’s display.
• To save this log data, you must
store it in the PC’s memory,
which you will learn to do in
section 3.4.3).
• There is only one logging
memory location in the test set
for log data, which holds about
4 MB.
• If you select Start Logging
again, any previous data in the
memory location will be
overwritten.
• You can log while using any of
the data connection types in the
test set: IP Data, ETSI A,
ETSI B, or BLER.
1. On the PC, on the 8960 Web
control page, select the
Protocol Logging icon.
2. Select Logging Setup.
3. Change the observation points
and buffer operation. At least
one observation point must be
selected. For this demonstration,
select GMM/SM and GSM_L3
and make sure the other
observation points are NOT
selected.
As shown in Table 2, observation
points correspond to seven protocol
layers you can log. Logging data will
only be collected for layers that have
been selected prior to the start of
logging.
Table 2. Observation points and
corresponding protocol layers
L1_Interface Raw information between the
DUT and test set
RLC/MAC Access and control messages
LLC Unnumbered and supervisory
messages
GMM/SM Attach, detach, security, and
PDP context messages
GSM_L3 Common control channel
messages
SNDCP Network-level messages
IP IP datagram data and control
fields
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