User's Manual

LPT-24 User’s Guide
Rev 2.0
Page 4 of 6
3 Introduction
The LPT-24 is a frequency hopping spread spectrum (FHSS) transmitter module designed to be
compatible with FCC Part 15.247 (US) and RSS-210 (Canada) regulations for license free
operation in the 2.4000 to 2.4835 GHz frequency band.
This transmitter module is intended to be mounted on a carrier circuit board, which will be used
in a variety of housings. General applications will be for hand-held remote control of industrial
equipment.
This transmitter has an integrated on-board chip antenna, eliminating the need for an external
antenna.
4 Specifications
Parameter MIN TYP MAX UNITS
Frequency Range 2.4000 2.4835 GHz
Supply Voltage 4.0 6 10 VDC
Frequency Stability (synthesized with TCXO reference) +/- 2.5 PPM
Operating Temperature -40 +70
°C
R.F. Power Output 10 12 mW
Data Throughput 4800 bps
Type of Emission: Frequency Hopping Spread Spectrum
Number of Radio Channels: 756
5 Connections
Refer to Schematic DSCH-2377R05.
The LPT-24 has the following connections
Pin # Schematic Function Input/Output
1 CN23 3 V Out O
2 CN20 Din2; RXD I/O; Digital
3 CN19 D7; SPI SCK I/O; Digital
4 CN12 Din5; SPI MOSI I/O; Digital
5 CN15 D6; SPI MISO I/O; Digital
6 CN9 OFF DETECT (ESTOP) I
7 CN7 Lo Batt In Analog In
8 CN24 RESET; SPI RESET I
9 CN5 LO BAT LED O
10 CN3 ON LED O
11 CN1 A1 I/O; Analog In, Digital Out
12 CN6 A4 I/O; Analog In, Digital Out
13 CN4 A3 I/O; Analog In, Digital Out
14 CN2 A2 I/O; Analog In, Digital Out