SYSTEM CONNECTOR INTERFACE
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LZT 123 8020 R1A
5 System Connector Interface
5.1 Overview
Electrical connections to the radio device (except the antenna),
are made through the System Connector Interface. The system
connector is a 60pin, standard 0.05 in (1.27 mm) pitch device.
The system connector allows both board-to-board and board-to-
cable connections to be made. Use a board-board connector to
connect the radio device directly to a PCB, and a board-cable
connector to connect the radio device via a cable.
Figure 5.1 below shows the numbering of the connector pins.
A ground connection is provided at the mounting hole next to
the RF connector on the radio device as shown below. Connect
this ground point to the DGND pins of the radio device by the
shortest, low-impedance path possible. The purpose of this
connection is to allow any antenna ESD strikes to bypass the
radio device’s internal ground path.
Pin 59
Pin 1
Pin 60
Pin 2
Ground
connection
Figure 5.1 Radio Device, viewed from underneath
The following table gives the pin assignments for the system
connector interface and a short description for each signal.
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