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Physical features, Communication ports, Antenna – Wavetronix Click 400 (900 MHz radio) (CLK-400) - User Guide User Manual

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CHAPTER 29 CLICK 421

Physical Features

The Click 421 has several communication ports, plus features for configuration.

Figure 28.2 – Diagram of the Click 421

Communication Ports

The back of the Click 421 features a 5-position connector that plugs into a T-bus connector

and provides power and RS-485 communication to the device. It also passes that RS-485

communication to all other devices on the T-bus.

The top of the device has two pluggable screw terminal blocks. The first block features -485,

+485 and two ground screw terminals for wiring RS-485 communication. (It will not be

necessary, however, to wire RS-485 through the screw terminal block if the device is con-

nected to a T-bus with uninterrupted RS-485 communication.) The second block features

RTS, CTS, TD and RD screw terminals for RS-232 communication. Both of these screw

terminal blocks can be removed for easy preinstallation wiring.

The front of the Click 421 features a DB-9 connector for RS-232 communication. A straight-

through cable can be used to connect from this port to a computer so that the device can be

configured using Click Supervisor.

Any data on one port will be transmitted simultaneously on all other ports.

Antenna

The Click 421 has a reversed polarity SMA antenna connector. An external antenna can be

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