HP 37717C, Calibration Manual, Page: 100 / 399

2-11
Installation
Connecting to the Network
OR DISCONNECTING OPTICAL CABLES.
• When connecting or disconnecting optical cables between the module
and device-under-test, observe the connection sequences given below.
Connecting: Connect the optical cable to the input of the device-
under-test before connecting to the module’s Optical
Out connector.
Disconnecting: Disconnect the optical cable from the module’s Optical
Out connector before disconnecting from the device-
under-test. Always ensure the shutter closes properly
and covers the laser aperture.
• NEVER examine or stare into the open end of a broken, severed, or dis-
connected optical cable when it is connected to the module’s Optical
Out connector.
• Arrange for service-trained personnel, who are aware of the hazards
involved, to repair optical cables.
C AU T I O N 1. Use of controls or adjustments or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
2. Always leave the fibre optic connector dust caps on each connector
when not in use. Before connection is made, always clean the connector
ferrule tip with acetone or alcohol and a cotton swab. Dry the connector
with compressed air. Failure to maintain cleanliness of connectors is
liable to cause excessive insertion loss.
Laser Warning Symbols
The front panel of optical modules Options UH1 and UH2 has the
following label:
CLASS 1 LASER PRODUCT
This label indicates that the radiant energy present in this instrument is
non-hazardous.
The front panel of optical modules Options URU, UKT and USN has
the following label: