nRF Module User Manual (Model: HM2401)
INTRODUCTION This manual contains important instructions for HM2401 and must be read in its entirety before installing or commissioning the equipment. For safety, only qualified technician, who has received training or has demonstrated skills can install and maintain this device under the guide of this document. Contact Information Hoymiles Power Electronics Technology Co. , Ltd. No.18 Kangjing Road, Hangzhou, Zhejiang Province, China Phone: +86-571-28056101 Fax: +86-571-28056137 http://www.hoymiles.
Table of Contents INTRODUCTION ..................................................................................................................... 2 1. Important Safety Information .......................................................................................... 4 Read this First ................................................................................................................... 4 Safety Instructions...................................................................................
1. Important Safety Information Read this First This manual contains important instructions to follow during installation and maintenance of the nRF module. Safety Instructions ·Only qualified personnel can install or replace the nRF module. · Do not attempt to repair the module as it contains the parts that are not serviceable to users. If the module breaks down, please contact your distributor for maintenance. Opening the module without permission will invalidate the warranty.
2. Module Interfaces 2.1 HM2401 Dimensions HM2401 dimensions: 19.7mm(W)*32.8mm(L)*3.5mm(H) Figure 1 shows the HM2401 dimensions. Figure 1 HM2401 dimensions 2.2 Pin Definition This Table 1 describes the interface pins . NO. Symbol I/O Type Function 1 Gnd P Power supply reference ground pin 2 NC I Null pin, no internal connection 3 P1.5 I/O RESERVED, P1.5, which is connected to P1.5 on the IC 4 P1.6 I/O RESERVED, P1.6, which is connected to P1.6 on the IC 5 P0.1 I/O RESERVED ,P0.
the IC 6 P0.6 I/O RESERVED, P0.6, which is connected to P0.6 on the IC 7 SCK I/O Serial peripheral interface clock pin 8 GND P Power supply reference ground pin 9 RXD I/O UART_RX, which is connected to P0.4 on the IC 10 TXD Output UART_TX, which is connected to P0.
3.3 Limited module procedures NA 3.4 Trace antenna designs NA 3.5 RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. If the device built into a host as a portable usage, the additional RF exposure evaluation may be required. 3.6 Antennas Antenna Type PCB antenna Peak Gain 2dBi 3.
3.8 Information on test modes and additional testing requirements a) The modular transmitter has been fully tested by the module grantee on the required number of channels, modulation types, and modes, it should not be necessary for the host installer to re-test all the available transmitter modes or settings.
The host integrator installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules. When testing the host product, all the transmitters must be operating. The transmitters can be enabled by using publicly-available drivers and turned on, so the transmitters are active.
5. Troubleshooting If the nRF module can’t work well, please follow this guideline: a) Try to repower on the device. If the LED on the module can’t light, please change the module or send the whole device to us. b) If the LED can light, please change the antenna. c) After changing the antenna, if it still can’t work, please change the module or send the whole device to us. 6. Technical Data Model Type Channel List Modulation Type Antenna Gain Working Voltage Power Consumption HM2401 2.
