Agilent Technologies 81680A Guia do Utilizador descarregar pdf (Página 58)

Performance Tests Performance Tests

58 Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition

Return Loss Test

This performance test applies to Agilent 81623B/4B/6B/Optical Heads.

1 Make sure that all connectors are clean.

2 Connect the equipment as shown in Figure 11 .

3 Press [Preset] on the mainframe.

Figure 11 Return Loss Reference Setup

Zero the Return Loss Module and the Optical Head

5 Enable the internal laser source of the Return Loss Module and allow 20

minutes for it to stabilize.

To ensure traceability, use the 81610CC Reference Cable for calibration

measurements. Do not use the 81610CC Reference Cable for

measurements on a Device Under Test. Instead, use a measurement

patchcord.

It is important to maintain the quality of the straight connector end

of the 81610CC Reference Cable. Never add another connector to

the straight end of the 81610CC Reference Cable, since a physical

connection is made. When the straight end of the 81610CC

Reference Cable is connected to the 81634B Power Sensor module,

no physical connection is made so there should be no degradation

of connector quality.

NOTE

CAUTION

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 111 112

Sem comentários

Agilent Technologies 81680A Guia do Utilizador Página 58