Tektronix CTS 850, User Manual

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Functional Overview
CTS850 SDH/PDH Test Set User Manual
2–15
Connecting Signals
To connect signals to the CTS850, use the electrical and optical
connectors located at the bottom and right side of the front panel.
For optical connections, the CTS850 accepts both single mode and
multimode fiber. For electrical connections, the CTS850 accepts
75
W
coaxial cable with BNC connectors for SDH rates and 2 Mb/s
Unbalanced, 8 Mb/s, 34 Mb/s, and 140 Mb/s rates. The CTS850
accepts Siemens connectors for 2 Mb/s Balanced signals.
Connecting Optical Signals
NOTE
. The optical TRANSMIT output is produced by a Class 1 laser
device. The output from a Class 1 laser is safe to view without
special eye protection. However, because other optical signals in
your environment may exceed the Class 1 limits, we recommend eye
protection as a precaution.
NOTE
. When performing a loopback test with the CTS 850 and using
the 1550 nm laser, always use 10 dB of attenuation. Always pad the
input level to less than – 10 dBm.
To connect optical signals to the CTS850:
1. Unscrew the dustcap that covers the optical port on the CTS850.
2. Remove the dustcap (if present) covering the connector on the
optical fiber.
3. Carefully insert the transmit end of the optical fiber into the
RECEIVE port on the CTS850. Line up the key on the optical
fiber connector with the cutout on the optical port connector.
Make sure that the optical fiber connector is fully inserted into
the optical port.
4. Tighten the optical fiber connector so it does not accidentally
come loose during use.