Serial Port Communications Terminal; Pickup Terminal; Chasis Ground, Guard, Neutral - Radian RD-30 Operation Manual

Operations Overview
4.10 Serial Port Communications Terminal
The communications terminal is interfaced via a DB-9 connector. Through the use of this
terminal, a myriad of capabilities present themselves. Not only can each RD-30 software package
be utilized, the RD-30 can actually be re-calibrated through this terminal. Additionally, the flash
memory storage for both the DSP and Xilinx programs is accessible through this terminal making
the RD-30 field upgradable.
4.11 Pickup Terminal
The sensor input terminal on the RD-30 comes in the form of a 4 Pin Lemo connector. Radian
Disk sensors, infrared and visible LED optical pickups can be utilized to sense disk rotation
or equivalent revolutions. See Section 2.1 Generating RD-30 Model Numbers for further
information.
4.12 Chasis Ground, Guard, Neutral
Chassis Ground – ideally tied to the best available earth ground. If the RD-30 is mounted in a
rack, no connection is required. The Chassis grounds main purpose is for safety.
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RD-30 Operations Manual