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Frequency – EXFO RTU 310-310G IP Services Test Head User Manual

Page 147

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Port Tabs

Ethernet and Fibre Channel Application

135

Electrical TX

Frequency

Note: Frequency offset generation is not available for 10Base-T test and when

Through Mode is selected.

Frequency Offset (ppm): Allows entering a positive or a negative
frequency offset in ppm. Choices are listed in the table below. The
default setting is 0. The frequency offset value can be changed on the
fly even when activated (On).

Actual Frequency (bps): Indicates the frequency (actual frequency +
Frequency offset) that will be used for transmission.

Nominal Frequency (bps): Indicates the nominal frequency of the
signal. The nominal frequencies are listed in the table below.

On/Off button: Allows enabling the frequency offset generation. This
setting is disabled (Off) by default.

Interface

Frequency Offset

a

a.

The frequency offset range is guaranteed for a source signal at 0 ppm. In the event

that the source signal already has an offset then, the output signal may exhibit an

offset larger than the range specified.

Nominal Frequency

100Base-T

±120 ppm

125000000 bps

1000Base-T

±120 ppm

1250000000 bps