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Alarm generation, Frequency – EXFO FTB-8100 Series Transport Blazer for FTB-200 User Manual

Page 137

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Port Tabs

SONET/SDH Application

125

Port TX (Optical Interfaces - SONET)

Alarm Generation

³

Type: LOS (Loss Of Signal): Turns off the output port laser signal.

³

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

Frequency

³

Frequency Offset (ppm): Allows entering a positive or a negative
frequency offset in ppm. The default setting is 0.

³

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

³

Nominal Frequency (bps): Indicates the nominal frequency of the
signal.

³

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 offset. 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

OC-3/STM-1

± 50 ppm

155520000 bps

OC-12/STM-4

± 50 ppm

622080000 bps

OC-48/STM-16

± 50 ppm

2488320000 bps

OTU1

± 50 ppm

2666057143 bps

OC-192/STM-64

± 50 ppm

9953280000 bps

OTU2

± 50 ppm

10709225316 bps

OTU1e

± 115 ppm

11049107143 bps

OTU2e

± 115 ppm

11095727848 bps

OTU1f

± 115 ppm

11270089286 bps

OTU2f

± 115 ppm

11317642405 bps