NEC 915MSG 915MHz Wireless Transceiver Module User Manual 915M SG DataSheet

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Document ID	1439817
Application ID	8UNCm53GY49Wlug60krL4Q==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	23.09kB (288618 bits)
Date Submitted	2011-03-30 00:00:00
Date Available	2011-09-26 00:00:00
Creation Date	2011-03-07 16:55:32
Producing Software	GPL Ghostscript 9.0
Document Lastmod	2011-03-07 16:55:32
Document Title	915M-SG_DataSheet
Document Creator	PDFCreator Version 1.1.0
Document Author:	1139701011438

Small size 915MHz
915MHz wireless transceiver module
「915M_
915M_SG」
SG」
The 915M-SG is a 915MHz Low power wireless transceiver module.
Product Photo
＜ Features
Features＞
・
Integrated by MCU, RF circuits, antenna
・
Communicated by the functions of device detect and data transmission
・
1:1,1:N, and N:N communication style
・
Controlled by UART I/F
・
Low power sleep mode
・
DC3.0V supply voltage
・
FCC certification
Document Number ＩＴ471-0013-X701
February 2011 （rev.1.0）
＜Specifications
Specifications＞
Product name
Carrier frequency
Communication protocol
Modulation
Wireless bit rate
Transmit Power
Effective range
Interface
915M_SG
903.5ＭＨｚ～926.5ＭＨｚ （24 channel）
Proprietary protocol
GFSK
9.6kbps/100kbps
Maximum 8dBm (At the feeding point of the antenna)
About 250m （Reference value）
・UART serial communication
Data length: 8bit
Baud rate : 9.6kbs,19.2kbps,38.4kbps,57.6kbps,115.2kbps
Data length: 8bit
Parity: no parity
Stop: 1stop bit
Flow control: none
Supply Voltage
Current Consumption
Operating conditions
Weight
Dimensions
Restrictions
Reguration
・DC +3.0±0.3V
・TX: Typ. 34mA
・RX: Typ. 23mA
・Sleep Mode : Typ. 3uA
(power-supply voltage DC 3.0Ｖ)
・Operating temperature range：-20℃～+75℃
・Operating humidity range：85%RH or less （No do be dewy）
About 3g
37.3mm×18.8mm×5.2mm （D×W×H）
RoHS-Compliant (Pb free)
FCC certification
Document Number ＩＴ471-0013-X701
February 2011 （rev.1.0）
＜FCC statement＞
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.
Modifications not expressly approved by NEC Engineering, Ltd. could void the user's authority to
operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-- Consult the dealer or an experienced radio/TV technician for help.
Radiofrequency radiation exposure Information:
The radiated output power of the device is far below the FCC radio frequency exposure limits.
Nevertheless, the device shall be used in such a manner that the potential for human contact during
normal operation is minimized.
Document Number ＩＴ471-0013-X701
February 2011 （rev.1.0）
＜output I/F connector＞
connector＞
connector type
product name
Signal level
： Stacking connector 20pin 0.5mm pitch
： JST 20R-JMCS-G-TF(NSA) Receptacle
： CMOS
Customer
： Recommended connector
JST 20P3.0-JMCS-G-TF(N) Plug
Stacking height 3mm
・Module pin definitions
Pin
No.
Type
VCC
power
Power
－
GND
GND
GND
－
TxD
OUT
UART data transmit
HiZ
RxD
IN
UART data receive
HiZ
WAKEUP
IN
WAKEUP input
HiZ
RESET
IN
RESET input
HiZ
GPIO1
－
Reserve
－
n.c
TSI
IN
TSI input
HiZ
internal Pullup
TSO
OUT
TSO output
HiZ
10
GPIO4
Reserve
－
n.c
11
VCC
power
power
－
DC3.0Ｖ(Recommend power supply voltage)
12
GND
GND
GND
－
13
GND
GND
GND
－
14
CTS
－
15
P_STATE
16
FLMD0
－
TEST Pin
－
n.c
17
TOOL0
－
TEST Pin
－
n.c
18
TOOL1
－
TEST Pin
－
n.c
19
RTS
－
Reserve
20
GND
GND
－
OUT
Definition
State of
reset
Pin name
Detail
DC3.0Ｖ(Recommended power supply voltage)
Sleep mode enable = High /disable = Low input
Internal Pullup
RESET Low input
Internal Pullup
Reserve
n.c
Mode output
Normal mode = Low / sleep mode =High output
GND
Document Number ＩＴ471-0013-X701
February 2011 （rev.1.0）
n.c
－
＜RF connector＞
connector＞
RF Connector connects with antenna through cable.
connector type
product name
impedance
： Ultra small surface mount coaxial connector
： Hirose Electronic U.FL-R-SMT-1
： 50Ω
＜antenna and cable for antenna connection＞
connection＞
・antenna
product name
impedance
antenna gain
： MIDORI ANZEN NMA-01
： 50Ω
： less than 3dBi
Unit:mm
・cable for antenna connection
product name
： Hirose Electronic
impedance
： 50Ω
cable length
： 300mm
HRMBPJ-U.FL-04N1-A-100RS
Unit:mm
Document Number ＩＴ471-0013-X701
February 2011 （rev.1.0）
＜Dimensions＞
Dimensions＞
RF connector
cap
20pin Staking connector
Staking hight 3mm
Top view
Side view
unit：mm
Document Number ＩＴ471-0013-X701
February 2011 （rev.1.0）
＜Installation＞
Installation＞
Contact
NEC Engineering,Ltd.
General inquiries
Sales&Marketing Division
4-10-27 Higashishinagawa Shinagawa-ku Tokyo 140-0002 Japan
TEL: +81 3 6713 1200
URL http://www.nec-eng.com/
Document Number ＩＴ471-0013-X701
February 2011 （rev.1.0）

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Modify Date                     : 2011:03:07 16:55:32+09:00
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Document ID                     : cd18cd1d-4aeb-11e0-0000-850377de93b3
Format                          : application/pdf
Title                           : 915M-SG_DataSheet
Creator                         : 1139701011438
Description                     : ()
Author                          : 1139701011438
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