Tektronix SD-42, User Manual

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Getting Started
1–2
SD-42 & SD-46 User Manual
Connector Care
The front of the SD-42/SD-46 Optical-to-Electrical Converter Head has a
precision 3.5 mm connector for attaching the optical head electrical signal output
to the lower input connector of an adjacent SD-24 or SD-26. These are high-pre-
cision connectors with a higher mechanical tolerance than standard SMA
connectors. Never attach a cable to a plug-connector if the cable has a worn or
damaged connector — damage may result.
Use extra care when attaching or removing a cable from the connectors. Turn
only the nut, do not turn the cable. When attaching a cable to the Optical-to-
Electrical Converter Head, align the connectors carefully before turning the nut.
Use light, finger pressure to make this initial connection. Then tighten the nut
lightly with a wrench.
For best repeatability and to prolong the life of connectors, use a torque wrench
and tighten the connection to the range of 7–10 lb-in (79–112 N-cm).
The front of the SD-42/SD-46 has a precision FC/PC optical connector
receptacle. This is for attaching a fiber optic signal cable. This connector
receptacle has a locating keyway. To ensure repeatable connections, it is
important to align this keyway on the connector and connector receptacle before
tightening the nut. The nut should be tightened with light, finger pressure only.
The connector receptacle must be kept free of dirt and dust. The cover cap should
be replaced whenever the unit is not in use or a fiber is not connected.