Optical Output; Angled And Straight Contact Connectors - Agilent Technologies 81570A User Manual

Optical Output

Getting Started with Attenuator Modules
Optical Output

Angled and Straight Contact Connectors

Agilent 81570A Variable Optical Attenuator modules and 81576A Variable Optical
Attenuator modules with Power Control are designed for straight connector interfaces.
Agilent 81571A Variable Optical Attenuator modules and 81577A Variable Optical
Attenuator modules with Power Control are designed for angled connector interfaces.
The Agilent 81578A (with option 050 or 062) Variable Optical Attenuator modules are
designed for straight (FC/PC) multimode connector.
The inclusion of an angled contact connector is not optionable, and depends on the module
part number.
Angled contact connectors help you to control return loss, since reflected light tends to
reflect into the cladding, reducing the amount of light that reflects back to the source.
CAUTION If the contact connector on your instrument is angled, you can only use cables with angled
connectors with the instrument.
Angled Contact Straight Contact
Connector Symbol Connector Symbol
Figure 7 Angled and Straight Contact Connector Symbols
Figure 7 shows the symbols that tell you whether the contact connector of your attenuator
module is angled or straight. The angled contact connector symbol is colored green.
You should connect straight contact fiber end connectors with neutral sleeves to straight
contact connectors, or connect angled contact fiber end connectors with green sleeves to
angled contact connectors.
NOTE You cannot connect angled non-contact fiber end connectors with orange sleeves directly
to the instrument.
See "Accessories" on page 25 for further details on connector interfaces and accessories.
Agilent 81570A, 71A, 76A, 77A & 78A Variable Optical Attenuators, Eigth Edition 23