Agilent Technologies E4418B User Manual page 39

8. Serial Label
Each power meter has it's own individual identification number. Refer to
"Instrument serial numbers", on page 2-75 for further information.
9. Rmt I/O
This connector is an RJ-45 series shielded modular jack assembly. It
provides a TTL logic level output when a measurement exceeds a
predetermined limit. TTL inputs are also provided to initiate zero and
calibration cycles.
10. Ground Connector
Binding post, accepts 4 mm plug or bare-wire connection.
Agilent E4418B User's Guide
Getting Started
The Rear Panel at a Glance
1-17