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DIGITAL LINK MEASURING INSTRUMENTS

ERROR DETECTOR

MP1776A

100 MHz to 12.5 GHz

Supports Measurement for up to 50 Gbit/s System (Installed with 4 Channels)

MP1776A is an error detector housing four error detectors that can

measure error up to 12.5 Gbit/s. It has four-channels independent

measurement mode, two-channels or four-channels combined mea-

surement mode and be used for development, manufacturing and

maintenance of transmission systems and modules from 12.5 Gbit/s

to maximum 50 Gbit/s.

Features

• Max. 4-channels in one box

• Independent measurement of 4-channels

• PRBS patterns from 2

– 1 to 2

– 1

• Max. 32 Mbit programmable pattern at 4-channels combined mode

(corresponding six frames of STM-256/ STS-768)

• Burst data BER measurement for optical circulating loop test

• Good operability by GUI

• Display 4-channels measurement results on screen

Specifications

• MP1776A (main frame), MU177601B (12.5 Gbit/s Error Detector)

Operating frequency 100 MHz to 12.5 GHz

PRBS pattern: 2

– 1 (n: 7, 9, 11, 15, 20, 23, 31)

Zero substitution pattern: 2

(n: 7, 9, 11, 15), consecutive zero-pattern can be inserted up to pattern length – 1

Programmable data

Measurement pattern Independent: 2 to 8,388,608 bits

2-channels combined: 4 to 16,777,216 bits

4-channels combined: 8 to 33,554,432 bits

Logic inversion: Positive/negative switching possible

Measurement mode Independent

∗

, 2-channels combined

∗

, 4-channels combined

∗

Synchronization method Normal, frame

Error detection mode Insertion, omission, total

Error ratio: 0.0000 x 10

–16

to 1.0000 x 10

Error count: 0 to 9,999,999, 1.0000 x 10

to 9.9999 x 10

Measurement items Clock frequency:

0.1 to 12.5 GHz (independent), 0.2 to 25 GHz (2-channels combined), 0.4 to 50 GHz (4-channels combined)

∗Resolution: 1 kHz, accuracy: 10 ppm ±1 kHz

Sync threshold value Internal, 10

–n

(n: 2, 3, 4, 5, 6, 7, 8)

Auto search function Supported

Input waveform: NRZ

Input amplitude: 0.5 to 2.0 Vp-p

Threshold voltage: –3.000 to +1.750 V (1 mV step)

Data input Termination condition: GND/–2.0 V

Input impedance: 50 Ω

Connector: APC-3.5

Number of input: 1 (MU177601B 12.5 Gbit/s Error Detector Unit)

Input level: 0.5 to 2.0 Vp-p

Input waveform: Square wave only (<0.5 GHz, Duty: 50%), Sine or square wave (≥0.5 GHz, duty: 50%)

Clock delay: ±500 ps (1 ps step)

Clock input Polarity inversion: POS/NEG inversion selectable

Input impedance: 50 Ω

Connector: APC-3.5

Number of input: 1 (MU177601B 12.5 Gbit/s Error Detector Unit, up to 4 channel can be added.)

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