Agilent Technologies E4419B User Manual page 37

This connector allows the power meter to be controlled remotely
using either the RS232 or RS422 serial interface standards.
9. Serial Label
Each power meter has it's own individual identification number.
Refer to "Instrument serial numbers", on page 2-82 for further
information.
10. 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.
11. Ground Connector
Binding post, accepts 4 mm plug or bare-wire connection.
Agilent E4419B User's Guide
Getting Started
The Rear Panel at a Glance
1-17