The Sapling LPA-24G-1 2.4 GHz FHSS TRANSCEIVER User Manual
The Sapling Company, Inc 2.4 GHz FHSS TRANSCEIVER
User Manual
USER MANUAL
NOVEMBER 2013
2.433-2.449 GHz Frequency Hopping Transceiver Module
Model: A-CCA-LPA-24G-1
FCC ID: R73LPA-24G-1
REV 4
Page 2 of 7
Introduction
This module is only authorized to be installed in fixed mount installation and may
not be installed in a mobile or portable device.
The LPA-24G-1 RF module is to be used in Sapling Analog Clocks such as the
SAL Series Clocks and equivalent models.
The module is only to be connected to and installed in other Sapling products.
Specifications
The PCB antenna gain is +3.3dB maximum.
The maximum output power will be 18 dBm.
The transmit cycle is a sequence of 80 data strings on 76 different frequencies,
each transmitted for 3 msec.
Every transmit cycle is 240 msec in duration (80 x 3msec).
The frequency hopping pattern is proprietary to Sapling and covers the range from
2.433 to 2.449 GHz.
Connections
The picture shows the LPA-24G-1 RF module, connectors, and FCC ID label.
LPA-24G-1
FCC ID: R73LPA-24G-1
J4 POWER & DATA
J3 PROGRAMMING
Page 3 of 7
LPA-24G-1 Connectors
J3 PROGRAMMING CONNECTOR
PIN 1*
TDO/TDI
PIN 2
3.3 VOLTS
PIN 3
TDI
PIN 4
3.3 VOLTS
PIN 5
S2 DRV (TMS)
PIN 6
1.8 VOLTS
PIN 7
TCLK
PIN 8
TEST
PIN 9
GROUND
PIN 10
GROUND
PIN 11
RST
PIN 12
TXD
PIN 13
SHIELD
PIN 14
RXD
* PIN 1 IS THE SQUARE PAD.
J4 GEARBOX CONNECTOR
PIN 1*
MOT SEC 1 1.8 VOLTS
PIN 2
MOT SEC 2
PIN 3
MOT MIN 1 1.8 VOLTS
PIN 4
MOT MIN 2
PIN 5
GRBX SEL A
PIN 6
GRBX SEL B
PIN 7
PWR DET
PIN 8
S1
PIN 9
GROUND
PIN 10
S2
PIN 11
3.3 VOLTS
PIN 12
GRBX DET
PIN 13
1.8 VOLTS
PIN 14
GROUND
* PIN 1 IS THE SQUARE PAD.
J3 PROGRAMMING
J4 POWER & DATA
Page 4 of 7
Installed
The picture below shows the LPA-24G-1 RF module in an analog clock. It shows
the SAL-GBS-09S-0, a battery powered wireless analog clock.
SAL-GBS-09S-0
LPA-24G-1
J3 PROGRAMMING
J4 POWER & DATA
Page 5 of 7
The picture below shows the LPA-24G-1 RF module installed. The picture is the
back of an SAL-GBS-09S-0, a battery powered wireless analog clock, and the FCC
ID and the Compliance Label.
SAL-GBS-09S-0
LPA-24G-1
INSTALLED
INSIDE .
J3 PROGRAMMING
Page 6 of 7
SAL-GBS-09S-0 Label
The label below is an example of the FCC ID and the Compliance Label.
Operation
1. The line powered version of the LPA-24G-1 RF module will transmit the
time for 240 msec and receive the time for up to 20 seconds once a minute.
2. The battery powered version of the LPA-24G-1 RF module will transmit the
time for 240 msec and receive the time for up to 20 seconds every 2 hours.
FCC Statement:
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO
OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS
TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE
USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
Changes Or Modifications Not Expressly Approved By The Party Responsible
For Compliance Could Void The User's Authority To Operate The
Equipment.
Page 7 of 7
Antenna(s)
This transmitter must be installed to provide a separation distance of at least
8.1 cm from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter for satisfying RF exposure
compliance.