Chapter 5 Datacom Testing
Frame Relay testing
SmartClass E1 Tester User’s Guide 71
Specifying polarity settings
The following procedure describes how to configure clock and data polarity
settings.
To specify polarity settings
1 If you haven’t already done so, launch the Frame Relay application (see
“Launching the Frame Relay application” on page 64).
2 On the Configuration menu, select Data/Clock Polarity Settings, and
then specify Normal (uses the phasing specified by the interface stan-
dard) or Inverted (uses the inverse of the phasing specified by the inter-
face standard) for the following settings:
3 If you need to specify other settings for the test, press Cancel to return to
the Configuration menu.
You have specified the polarity settings.
Monitoring traffic on
Datacom interfaces
The E1/Datacom Tester can monitor frame relay traffic on Datacom interfaces.
To monitor traffic on a Datacom interface
1 If you haven’t already done so, launch the Frame Relay application (see
“Launching the Frame Relay application” on page 64).
2 On the Configuration menu, select Datacom Settings, and then specify
the settings.
3 Specify the frame header settings:
a On the Configuration menu, select FR Header Settings.
b Select DLCI Rx, and then enter a value, from 0 to 1023, for the
received data link connection identifier (DLCI).
The E1/Datacom Tester will display test results for the traffic on this
DLCI in the DLCI result category; results for the entire link appear in the
Link result category.
c Select Lng Frm Thresh, and then enter a value, from 5 to 9999 bytes,
to indicate the threshold for long frames on the receiver.
The E1/Datacom Tester will maintain a count of received frames that
exceed the specified threshold.
4 Specify the local management interface settings. See “Configuring the LMI
Settings” on page 69.
5 Specify how link trace results should be displayed. See “Configuring the
trace settings” on page 70.
6 Specify the polarity settings. See “Specifying polarity settings” on page 55.
7 After you finish configuring the test settings, press Cancel to return to the
Test menu.
Setting Parameter
TxClock Polarity Specify the polarity for the Tx Clock
RxClock Polarity Specify the polarity for the Rx Clock
TxData Polarity Specify the polarity for the transmitted data
RxData Polarity Specify the polarity for the received data
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