ELPRO Technologies E2-950 UHF narrow band licensed radio band transceiver module User Manual man E2 950 D1 1x

ELPRO Technologies Pty Ltd UHF narrow band licensed radio band transceiver module man E2 950 D1 1x

User Manual

Version 1.1
Cooper Bussmann
E2-950 Radio Module
Instruction Manual
Read and
Retain for
Future
Reference
Elpro Technologies E2-450 Radio Transceiver Module Instruction Manual
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ATTENTION!
Incorrect termination of the supply wires may cause internal damage. Before turning the power on double-check ALL
connections by referring to this User Manual.
CAUTION
To comply with FCC RF Exposure requirements in section 1.1310 of the FCC Rules, antennas used with this device
must be installed to provide a separation distance of at least 90 cm from all persons to satisfy RF exposure
compliance.
DO NOT
Operate the transmitter when anyone is within 90 cm of the antenna.
Operate the transmitter unless all RF connectors are secure and any open connectors are properly
terminated.
Operate the equipment near electrical blasting caps or in an explosive atmosphere.
All equipment must be properly grounded for safe operations. All equipment should be serviced only by a qualified
ELPRO staff only.
FCC Notice:
Part 90 – This device has been type accepted for operation by the FCC in accordance with Part90 of the FCC rules
(47CFR Part 90). See the label on the unit for the specific FCC ID and any other certification designations.
Note: This device should only be connected to Devices that are covered by either a FCC DoC or
are FCC certified.
Antenna Models:
Manufacturer Model Number Net
ELPRO CFD940 2 dBi Gain
ELPRO SG900EL 5 dBiGain
ELPRO SG940-6 8 dBi Gain
ELPRO YU6-940 11 dBi Gain
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Safety Notices:
Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human
exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its actions in
Docket 93-62 and OET Bulletin 65 Edition 97-01.
Limitations and Condition of Use:
ELPRO E2-950 radio module is designed as a reusable module for use with future development of ELPRO products.
The module is limited for use by ELPRO only. This module is not to be made available for third party use or in any
OEM arrangements.
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CONTENTS
CHAPTER 1 - INTRODUCTION ..................................... 5
CHAPTER 2 - Module Description .................................. 5
..................................................................................... 5
.................................................................................. 5
.................................................................................. 5
M
AIN
H
OST
I
NTERFACE
............................................ 5
2.0
A
LTERNATE
H
OST
I
NTERFACE
.................................. 6
2.1
P
RODUCTION
I
NTERFACES
........................................ 6
2.2
CHAPTER 3 - OPERATION ............................................ 6
CHAPTER 4 - Locale ....................................................... 8
U
NITED
S
TATES
...... E
RROR
!
B
OOKMARK NOT DEFINED
.
4.0
CHAPTER 5 - Interface Pin Description .......................... 8
M
AIN
H
OST
I
NTERFACE
P
IN
D
ESCRIPTION
................. 8
5.0
A
LTERNATE
H
OST
I
NTERFACE
P
IN
D
ESCRIPTION
....... 9
5.1
P
ROTECTIVE
E
ARTHING
P
OINT
................................ 10
5.3
CHAPTER 6 - SPECIFICATIONS ................................. 10
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CHAPTER 1 - INTRODUCTION
The E2-950 is a radio modem module that will be used as a base radio for a number of Elpro wireless products in the
future. It will be primarily used to act as a wireless network adapter for transfer of 802.11 data frames over lower
speed wireless links. The E2-950 consists of a host microcontroller, an RF transceiver section, and a power supply
section.
CHAPTER 2 - Module Description
Main Host Interface
2.0
The main host interface is delivered through a 20 pin standard right angle pin header connector indicated in the
picture above. The pin description will be described in chapter 4. This interface provides power supply to the module.
This interface also provides a serial interface to the module where data can be supplied to be transmitted and
received through.
Alternate Host Interface
Production Interfaces
Main Host
Interface
Grounded Mounting Holes
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Alternate Host Interface
2.1
The alternate host interface port provides similar signals to the main host interface. This port may be used for future
development.
Production Interfaces
2.2
The production interfaces consists of JTAG ports and serial interfaces directly to microcontrollers. These interfaces
are used in production and development only.
CHAPTER 3 - OPERATION
The host system communicates with the E2-950 module via the serial interface provided by the main host interface.
The serial interface is a standard TTL UART interface in full duplex asynchronous connection. The baud rate is
1.0Mbps. RTS and CTS lines are used to provide flow control between the host and radio processors.
The serial protocol is a proprietary message structure.
Message Framing
Message framing is based on PPP Byte stuffing. The special characters 0x7F, 0x7D and 0xFF are the beginning of a
frame, data link escape and end of frame characters respectively.
Each message begins with the transmission of the start of frame character. This is followed by the message data
payload for the message end of the message is indicated by the end of frame character.
Occurrence of the characters for start of frame, end of frame, or the data link escape character within the data packet
is indicated by stuffing an additional data link escape character into the data stream before the special character and
then setting bit 5 of the control character to 0.
Whenever the start flag character is detected, the framer state is reset to receiving the first data payload byte. (Start
flag should never occur in the data payload due to the escaping scheme above.)
The end of frame character ensures that the transmitter and receiver are synchronised at the beginning of the next
data frame. If they are not correctly synchronised, the 0xFF will result in the additional “ones” being detected as a long
stop condition at the receiver and subsequent characters being correctly synchronised.
Message Format
Endian
All multi-byte fields are transmitted in little endian format.
General Message Format
Table 1 describes the general format of the messages including the start and end flags.
START_FLAG 1 byte Start of message identifier (0x7E)
Service_code 2 bytes Service code to identify message type and message ID
Payload Data 0-n bytes
Message payload data. Interpreted according to Service code
END_FLAG 1 byte End of message identifier (0xFF)
Table 1: General message format
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Service code encoding
Table 2 describes the encoding of the Service code field from the Service Type and Service ID
b15 - b14 Service Type
00: request
01: indicate
10: confirm
11: unused
b13 - b0 Service ID
0x41: Transmit
0x42: Flush
0x43: Receive
0x44: Local_Management
0x45: Extended Transmit
0x46: Extended Flush
0x47: Extended Receive
Table 2: Service code encoding
Service types
Table 3 describes the service types and their interactions.
Request
(0b00)
Request messages are used where a message acknowledgement is
required. A confirm message is expected to be sent from the other party.
Matching of request and confirm messages depends on the message ID.
Messages may include a unique handle to that can used to match request to
confirm, or the process transmitting the message can ensure that only one
message of that type is outstanding at any time.
Indicate (0b01) Used when acknowledgement of the message is not required. Indicate
messages do not have any matching confirm message.
Confirm (0b10) Confirm messages are returned to the process that initiated a Request
message to acknowledge receipt of the request message (and possible
acknowledge processing of the request message is complete). Generation of
the Confirm message and the details of any payload data depend on the
Service ID for the message.
The Service ID for the confirm must match the service ID for the original
request message.
Table 3: Service types
For more detailed information about the protocol, refer to ELPRO document; spec_E2-Radio-io-protocol_V2-5.doc.
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CHAPTER 4 - Locale
The E2-950 radio is designed to operate in frequency bands as listed below. These bands are fully supported for
North America.
Model (X is W for 25kHz bandwidth, N for 12.5kHz) Supported Frequency Band
E2-950-WR-P5W-F937-X 932-942 MHz
CHAPTER 5 - Interface Pin Description
Main Host Interface Pin Description
5.0
Pin
Signal Description Direction
1 GND Ground
2 5V_RADIO 5V supply rail supplied by host Input to module
3 GND Ground
4 5V_RADIO 5V supply rail supplied by host Input to module
5 GND Ground
6 VSUP_CON Main DC input power supply rail of the host (9-30V) Input to module
7 GND Ground
8 VSUP_CON Main DC input power supply rail of the host (9-30V) Input to module
9 3.3V_RADIO
3.3V supply rail supplied by host Input to module
10 CTS0_7 Clear to send (When toggled, it indicates that the
host should wake up.)
Output from module
11 3.3V_RADIO
3.3V supply rail supplied by host Input to module
12 RTS0_7 Ready to Send (When toggled, it indicates that the
radio processor should wake up.)
Input to module
13 BRX Not used
14 TXD0_7 Data Transmit Input to module
15 BTX Not used
16 RXD0_7 Data Receive Output from module
17 _SHDN Radio Shutdown Input to module
18 AUX1 Not used
19 nR_OC Over Current Output from module
20 GND Ground
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Alternate Host Interface Pin Description
5.1
Pin
Signal Description Direction
1 VSupply 13.8V regulated supply from host Input to module
2 GND Ground
3 VSupply 13.8V regulated supply from host Input to module
4 GND Ground
5 5V_CON 5V regulated supply from host Input to module
6 GND Ground
7 5V_CON 5V regulated supply from host Input to module
8 GND Ground
9 5V_CON 5V regulated supply from host Input to module
10 nR_OC Over Current Output from module
11 3.3V_CON 3.3V supply rail supplied by host Input to module
12 nEN_RADIO_PWR
Radio Power Enable Input to module
13 3.3V_CON 3.3V supply rail supplied by host Input to module
14 TXD0_7 Data Transmit Input to module
15 RXD0_7 Data Receive Output from module
16 RTS0_7 Ready to Send (When toggled, it indicates that
the radio processor should wake up.)
Input to module
17 CTS0_7 Clear to Send (When toggled, it indicates that
the host should wake up.)
Output from module
18 N.C Not connected
19 N.C Not connected
20 Test Point Not used
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Protective Earthing Point
5.3
There are five mounting screw points around the cage which are connected to the ground plane of the module. These
should be screwed on with metallic screws to the metallic casing or ground points on the host system. Diagram above
shows 2 of the possible 5 screw points for illustration only.
CHAPTER 6 - SPECIFICATIONS
Transmitter/Receiver
Frequency 932-952MHz
Transmit Power Licensed - 5 Watt (+37dBm)
Data Encoding 2-FSK, 4-FSK
Receiver Sensitivity 25 KHz channel :
-98dBm @19,200 bps (4FSK), -108dBm @ 9600 bps (2FSK)
12.5 KHz channel :
-99dBm @9600 bps (4FSK), -109dBm @ 4800 bps (2FSK)
Channel Bandwidths 25 KHz channel
12.5 KHz channel
Data Rate 12.5 KHz channel : 4800 bps, 9600 bps
25 KHz channel : 9600 bps, 19,200 bps
Range, Line of Site (LoS) 35Km (21mi.)
Antenna Connector Female SMA Standard Polarity
Supply Voltage 9-30V (VSUP_CON)
Operating Temperature -40 to +70 C
Humidity 0-99% RH Non-Condensing

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