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5. System Connector Interface
5.1 Overview
LZT 123 7589 R1A
Electrical connections to the radio device (except the antenna), are made
through the System Connector Interface. The system connector is a 60-pin,
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 60
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.
Ground
connection
Pin 1
Pin 2
19
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