Janus WiFi1500CF Plug-In User Manual

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WiFi1500CF Plug-In Modem User Manual
Bulletin
Revision
Date
JA03-UM-WiFi
P00
13 March 2014
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TABLE OF CONTENTS
TABLE OF CONTENTS and DISCLAIMER ............................................................................................................................. 2
1 Scope ............................................................................................................................................................................. 3
2 WiFi1500CF Overview ...................................................................................................................................................... 3-6
2.1 Absolute Maximum Ratings ..................................................................................................................................... 3
2.2 Recommended Operating Conditions ..................................................................................................................... 3
2.3 Plug-In Pin-Out ........................................................................................................................................................ 4
2.4 Power Connections .................................................................................................................................................. 5
2.5 Screw Mount ............................................................................................................................................................ 6
3 Wi-Fi Module .................................................................................................................................................................. 7-10
3.1 Wi-Fi Module Connections ...................................................................................................................................... 7
3.2 Wi-Fi Module Operations ...................................................................................................................................... 8-9
3.3 Wi-Fi Module Firmware ......................................................................................................................................... 10
4 GPS Module (Optional) ................................................................................................................................................ 11-12
4.1 GPS Module Connections ..................................................................................................................................... 11
4.2 GPS Module Operation ......................................................................................................................................... 12
5 Configuration Options .................................................................................................................................................. 13-14
6 Specifications .................................................................................................................................................................... 15
7 Ordering Information ......................................................................................................................................................... 16
8 Applicable Documents ..................................................................................................................................................... 16
9 Revision History ................................................................................................................................................................ 16
DISCLAIMER
The information contained in this document is the proprietary information of Connor-Winfield Corporation and its affiliates (Janus Remote Communication). The contents are confidential and any disclosure to
persons other than the officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of Connor-Winfield, is strictly prohibited. Connor-Winfield makes every effort to ensure the quality of the information it makes available. Notwithstanding the foregoing, Connor-Winfield does not make any warranty as to the information contained herein, and does not accept any liability for any injury, loss or damage of any kind incurred by use of or reliance upon the information. Connor-Winfield disclaims any and all responsibility for the application of the devices characterized in this document, and notes that the application of the device must comply with the safety standards of the applicable country, and where applicable, with the relevant wiring rules. Connor­Winfield reserves the right to make modifications, additions and deletions to this document due to typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and without notice. Such changes will, nevertheless be incorporated into new editions of this application note.
All rights reserved 2014 Connor-Winfield Corporation
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1. Scope:
This document provides a detailed hardware interface description and some general operating instructions for the WiFi1500CF. It does not cover the detailed operating instructions of the individual WiFi (GS1500M) or GPS (JN3) modules. Please refer to the documentation listed in the Applicable Documents section for further information concerning operation of these modules.
2. WiFi1500CF Overview
The WiFi1500CF provides Wi-Fi connectivity and an optional GPS receiver in a footprint compatible with the Janus line of CF Plug-In products. A GainSpan GS1500M module provides WiFi 802.11 b/g/n radio features and comes with S2W (Serial-to-Wi-Fi) application firmware. The GS1500M is easily configured via an AT type command set over a UART interface, and support for a SPI interface is available through an optional firmware load. A Telit JN3 GPS receiver is available as an option and provides a standard NMEA UART interface and 1PPS output for tracking solutions and precision timing requirements.
The power supply and I/O signals are compatible with Janus CF Plug-In host products such as the Terminus T2 and 400AP, or the WiFi1500CF can be used in a custom based solution. The WiFi1500 was specifically designed to provide customers with a cost effective product that is easily integrated into new and existing designs. It is completely interchangeable with other CF Plug-In products to allow for maximum network flexibility while removing the worry of product obsolescence.
2.1 Absolute Maximum Ratings:
Parameter Min Typ Max Unit Note
Operating Temperature -40 - +85 °C Storage Temperature -40 - +85 °C SUPPLY (input) - 6.0 volts GPS antenna bias (output) - TBD mA
2.2 Recommended Operating Conditions:
Parameter Min Typ Max Unit Note
Operating Temperature -40 - +85 °C Storage Temperature -40 - +85 °C SUPPLY (input) 4.75 .0 5.25 volts SUPPLY (input) [w/ GPS] TBD mA WiFi1500CF v1.0 SUPPLY (input) [w/o GPS] TBD mA WiFi1500CF v2.0 PWRMON/VAUX (output; @ 2.8V) 100 TBD mA default configuration PWRMON/VAUX (output; @ 3.3V) 200 TBD mA optional configuration GPS antenna bias (output) 3.3 volts
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2. WiFi1500CF Overview continued
WiFi POWER
SUPPLY
VIO POWER
CONNECTOR
VAUX
GPS POWER
WiFi1500CF
VIO
UART I/O
SPI I/O
GPIO10,31
RESET
GPIO30
VIO POWER
LEVEL
TRANSLATORS
VIO POWER
LEVEL
TRANSLATORS
GS1500M
WiFi MODULE
UART0
SPI
GPIO
UART1
ANALOG I/O
I2C
PROGRAMSERVICE
RESET
GPS MODULE
JN3
RF
WiFi ANTENNA
UART I/O
1PPS
UART
1PPS
DISABLEENABLE
Components not populated on WiFi1500CF v2.0 (without GPS)
Figure 1. WiFi1500CF Block Diagram
RF
GPS ANTENNA
CONNECTOR
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2. WiFi1500CF Overview continued
2.3 Plug-In Pin-Out
Pin Name Description I/O Signal I/O Level Pull Type Notes
1 SUPPLY 5.0 +/- 0.5 V Positive Supply Input Power Input N/A N/A 1 2 SUPPLY 5.0 +/- 0.5 V Positive Supply Input Power Input N/A N/A 1 3 DISABLE WiFi Disable WiFi Supply CMOS Input SUPPLY PULL-UP to SUPPLY 2 4 RXD GS1500M UART0_TX CMOS Output VIO N/A 3 5 N/C No Connection N/A N/A N/A 4 6 CTS GS1500M UART_RTS CMOS Output VIO N/A 3 7 N/C No Connection N/A N/A N/A 4 8 1PPS GPS 1PPS output CMOS Output VIO N/A 5,9 9 TXD GS1500M UART0_RX CMOS Input VIO N/A 3 10 N/C No Connection N/A N/A N/A 4 11 RTS GS1500M UART0_CTS CMOS Input VIO N/A 3 12 GROUND Supply Reference Power N/A N/A ­ 13 UART1_TX GS1500M UART1_RX CMOS Input VIO N/A 6,9 14 UART1_RX GS1500M UART1_TX CMOS Output VIO N/A 6,9 15 GPIO30 GS1500M GPIO30 CMOS Bi-Direction VIO N/A 9 16 GPIO31 GS1500M GPIO31 CMOS Bi-Direction VIO N/A ­ 17 SERVICE Enable Firmware Load TTL Input VIO PULL-UP to VIO 7 18 PWRMON Reference Voltage Analog Output N/A N/A ­ 19 N/C No Connection N/A N/A N/A 4 20 RESET Reset Cellular Radio CMOS Input N/A PULL-UP to 3.3V 8 21 N/C No Connection N/A N/A N/A 4 22 N/C No Connection N/A N/A N/A 4 23 N/C No Connection N/A N/A N/A 4 24 N/C No Connection N/A N/A N/A 4 25 GROUND Supply Reference Power N/A N/A ­ 26 GROUND Supply Reference Power N/A N/A ­ 27 N/C No Connection N/A N/A N/A 4 28 N/C No Connection N/A N/A N/A 4 29 N/C No Connection N/A N/A N/A 4 30 N/C No Connection N/A N/A N/A 4 31 I2C_SDA GS1500M 12C Data CMOS Bi-Direction N/A N/A 5,6 32 I2C_SCL GS1500M 12C Clock CMOS Bi-Direction N/A N/A 5,6 33 GPS_RX GPS UART - RX CMOS Input VIO N/A 9 34 GPS_TX GPS UART – TX CMOS Output VIO N/A 9 35 N/C No Connection N/A N/A N/A 4 36 ASYNC GS1500M GPIO19-ASYNC CMOS Output VIO N/A ­ 37 GPIO10 GS1500M GPIO10 CMOS Bi-Direction VIO N/A ­ 38 SPI_WAKE GS1500M SPI_WAKE CMOS Output VIO N/A ­ 39 GROUND Supply Reference Power N/A N/A ­ 40 SPI_MISO GS1500M SPI_DOUT CMOS Output VIO N/A ­ 41 SPI_MOSI GS1500M SPI_DIN CMOS Input VIO N/A ­ 42 SPI_CS GS1500M SPI_CS CMOS Input VIO N/A ­ 43 SPI_CLK GS1500M SPI_CLK CMOS Input VIO N/A ­ 44 ADC1 GS1500M A/D Converter 1 Analog Output N/A N/A 5,6 45 ADC2 GS1500M A/D Converter 2 Analog Input N/A N/A 5,6 46 ADC1 GS1500M A/D Converter 1 Analog Input N/A N/A 5,6 47 N/C No Connection N/A N/A N/A 4 48 VAUX Reference Voltage Analog Output N/A N/A ­ 49 GROUND Supply Reference Power N/A N/A -
NOTES: N/A – not applicable VIO – I/O logic level. VIO is 2.8V by default; can be configured to 3.3V by
changing 0 ohm jumpers on the board.
1. SUPPLY pins are internally connected.
2. Disable input for WiFi supply (independent of GPS supply). Pin is internally pulled up to SUPPLY voltage and can be left floating for always­on operation. For shutdown, pull low with open collector/drain driver.
3. The GS1500M UART interfaces are cross connected to appear as a DCE devices on the WiFi1500CF pinout.
4. N/C (no connection). The pin has no function and makes no electrical connection.
5. Must be enabled by installing 0 ohm jumpers on the board. See Configuration Options section.
6. Not supported in standard firmware
7. Enable input for loading GS1500 firmware. Pin is internally pulled up to VIO voltage and can be left floating. For enabling firmware load, pull low with open collector/drain driver. (There is also provision for a jumper for this on the board.).
8. Connected to GS1500 RESET pin and a 22K pullup resistor to 3.3 V through a 1 k series resistor.
9. Only available on WiFi1500CF V1.0 boards (with GPS). Pin is N/C (no connection) on WIFi1500CF V2.0 boards.
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2. WiFi1500CF Overview continued
2.4 Power Connections
SUPPLY – 5.0 volt supply for the module (referenced to the GROUND pins). The two SUPPLY pins (pins 1 and 2) are internally connected together.
PWRMON / VAUX – These pins are connected to the internal VIO supply that powers the level shifters used on several of the I/O pins. The two pins are internally connected; the different names are used to maintain compatibility with other CF Plug-In products. This voltage can be used as a reference for an external interface. The VIO supply can be connected to an internal 2.8 volt supply or an internal 3.3 volt supply. The default is the 2.8 volt supply so as to be compatible with the CF Plug-In host products (e.g T2, 400AP). See the Configuration Options section for information on changing the VIO supply.
The following I/O pins use the level shifters or are associated with the VIO supplies:
Pin Name Pin Name
4 RXD 34 GPS_RX 6 CTS 35 GPS_TX 8 1PPS1 36 ASYNC 9 TXD 37 GPIO10 11 RTS 38 SPI_WAKE 13 UART1_TX 40 SPI_MISO 14 UART1_RX 41 SPI_MOSI 15 GPIO301 42 SPI_CS 16 GPIO31 43 SPI_CLK 17 SERVICE2
1. These pins are not connected on the WiFi1500CF v2.0 (w/o GPS)
2. This pin uses a discrete transistor implementation for a level shifter.
1
1
ENABLE – Used to disable the GS1500M and level shifter power supplies. This pin is internally pulled up to the SUPPLY voltage which enables the power supplies by default. Pulling this pin low will disable the internal GS1500M and level shifter power supplies. The GPS supply is unaffected. This can allow for reduced power consumption by disabling the GS1500M WiFi module while allowing the GPS receiver to continue to operate.
2.5 Screw Mounting
The WiFi1500CF allows for the use of a #4 machine screw to help keep a socketed module in place where environmental variables may cause problems otherwise. If the user wishes to have a stand-off underneath the module to help alleviate possible stress from mounting hardware, below are the Janus part numbers and associated drawings for an available solution.
4-40 Hex Female Stand-off: MC-0356-G 4-40 3/16” Pan Head Phillips Machine Screw: MC-0357-G
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Figure 2. Screw Diagram
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3. WiFi Module
The GainSpan GS1500M provides the WiFI connectivity for the WiFi1500CF. A complete description of this module is beyond the scope of this document. Detailed hardware and operational information can be found in the GS1500M
documentation listed in the Applicable Documents section.
3.1 WiFi Module Connections
The connections between the GS1500M module and the WiFi1500CF pins are shown in the table below.
GS1500M WiFi1500CF GS1500M WiFi1500CF Pin Name Interface Pin Name Pin Name Interface Pin Name
1 GND GND 25 I2C_CLK Pullup to VIO 321 I2C_SCL 2 JTAG_TCLK N/C 26 I2C_DATA Pullup to VIO 311 I2C_SDA 3 JTAG_TDO N/C 27 SSPI_DOUT Level Shifter 44 SPI_MISO 4 JTAG_TDI N/C 28 SSPI_CLK Level Shifter 43 SPI_CLK 5 JTAG_TMS N/C 29 SSPI_CS Level Shifter 42 SPI_CS 6 JTAG_nTRST N/C 30 SSPI_DIN Level Shifter 41 SPI_MOSI 7 ALARM1 N/C 31 VIN_3V3 3.3V 8 RTC_OUT1 N/C 32 GND GND 9 VBAT 3.3V 33 EN_1V8 3.3V 10 DC_DC_CNTL N/C 34 VDDIO 3.3V 11 ADC1 --- 44,461 ADC1 35 UART1_CTS N/C 12 ADC2 --- 451 ADC2 36 UART1_RTS Pullup to VIO 17 SERVICE 13 ALARM2 N/C 37 UART1_RX Level Shifter 13 UART1_TX 14 MSPI_DIN N/C 38 UART1_TX Level Shifter 14 UART1_RX 15 MSPI_DOUT N/C 39 UART0_TX Level Shifter 4 RXD 16 VOUT_1V8 Internal2 40 UART0_RTS Level Shifter 6 CTS 17 GND GND 41 UART0_RX Level Shifter 9 TXD 18 MSPI_CLK N/C 42 UART0_CTS Level Shifter 11 RTS 19 MSPI_CS0 N/C 43 GPIO31 Level Shifter 16 GPIO31 20 MSPI_CS1 N/C 44 GPIO30 Level Shifter 15 GPIO30 21 GPIO21 N/C 45 GPIO29 N/C 22 GPIO20 N/C 46 GPIO28 Level Shifter 38 SPI_WAKE 23 GPIO19 Level Shifter 36 ASYNC 47 EXT_RSTn Pullup to 3.3V 20 RESET 24 GPIO10 Level Shifter 37 GPIO10 48 GND GND
-- Antenna u.FL connector
1 Jumpers must be installed to connect these pins. See the Configuration Option section. 2 The GS1500M VOUT_1V8 pin can be jumpered to the JN3 module’s BOOT pin. See the Configuration Option section.
Antenna
The GS1500M has an on-board PCB (printed circuit board) antenna and a u.FL RF connector to support an external WiFi antenna. The u.FL connector is located on the edge of the GS1500M module board that overhangs the WiFi1500CF board. Commands entered via the GS1500’s UART or SPI port can be used to select which antenna is used.
UART interface
UART0 on the GS1500M is brought out through a level shifter and support is provided for TX, RX, CTS and RTS signals. While the GS1500 has DTE (Data Terminal Equipment) UART configuration, an internal crossover network converts this to appear as a DCE (Data Communications Equipment) device on the pin-out of the WiFi1500CF. This makes it compatible with host processors (e.g. Janus 400AP, T2) and other microcontroller devices that typically present a DTE UART interface. The default settings for the UART0 interface are 9600 baud, 8 bit characters with no parity bits and one stop bit (8N1).
ASYNC
Connected to the GS1500M GPIO19 pin through a level shifter. When enabled via the command interface, this pin can be used to provide notification of asynchronous messages at the UART0 port. (See ‘Enhanced Asynchronous Notification’ in the GS1500M Serial-to-WiFi Adapter Application Programming Guide.)
SPI interface
The GS1500M SPI slave port is brought out through a level shifter and support is provided for the SPI_MISO, SPI_MOSI, SPI_CS, SPI_CLK and the SPI_WAKE pins. The SPI port provided as an alternative to the UART0 interface on the GS1500M, and can provide faster communication speeds (up to 3 Mbps) than the UART0 interface.
SPI_WAKE
Connected to the GS1500M GPIO28 pin through a level shifter. This pin is asserted high during data transmission periods. It notifies the host (SPI master) that it can begin receiving data by providing the SPI clock signal. In addition, it provides an indication that the SPI interface is operational following start up. (See ‘SPI Interface Handling‘ and ‘Node Start Up Handling’ in the GS1500M Serial-to-WiFi Adapter Application Programming Guide.)
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3. WiFi Module Continued
3.2 WiFi Module Operations
Operation of the GS1500M WiFi module requires a serial connection to the device, either through its UART0 port or its slave SPI port. (The SPI Mode 0 firmware load is required to support the SPI port connection.) Operational commands and data strings are transferred using the serial connection. A complete description is beyond the scope of this User Manual; please refer to the GS1500M Serial-to-WiFi Adapter Application Programming Guide.
The GS1500M can operate in 3 different modes that are related to how the serial interface is utilized:
Command mode (default) – Command strings using an ‘AT’ command format can be used to configure the module.
Data processing mode – Using escape character sequences, data can be sent and received from up to 16 different IP address-port locations.
Auto connect mode – The module can be pre-configured to connect to a network at start-up as either a TCP or UDP client or server. Following start-up, serial data is automatically sent to and received from a remote IP address via the selected protocol.
3.2.1 Set-up:
This section describes the minimum hardware set-up requirements and some basic command procedures to operate the GS1500M module.
3.2.1.1 Hardware Set-up
Hardware set-up requires the following:
- UART connection (GS1500M UART0). At a minimum the TX and RX lines must be supported. The WiFi1500CF interface pins are at VIO voltage levels; the default value is 2.8 volts. The default UART configuration is 9600 baud, 8 bits, no parity, 1 stop bit (8N1).
- Antenna selection. The GS1500M has a printed circuit antenna that is selected by default. Alternatively, an external WiFi antenna may be connected to the u.FL connector on the GS1500M module board. In this case the U.FL connector antenna must be selected via a AT command; see the Basic Configuration section below.
- Power. Apply power to the unit by providing 5.0 +/- 0.25 volts across the WiFi1500CF SUPPLY and GND pins.
3.2.1.2 Basic Commands:
In general, the AT commands are insensitive to character case. Successful commands usually return the characters “OK” (if the default verbose mode is enabled). Please refer to the GS1500M Serial-to-WiFi Adapter Application Programming Guide for details. Those commands requiring user parameters are indicated with the parameter being given in inequality brackets, e.g. <PARAMETER>. Below are a few basic commands that can be used to demonstrate serial connectivity with the GS1500M:
AT+NSTAT=? NetworkStatusquery
AT+WS ScanforWiFinetworks
WT+NMAC=? MACaddressquery
The following disassociate command should be used before proceeding with any of the operational examples given in the sections below to insure that any previous operating mode is cleared:
AT+WD Disassociate
A reset to factory default conditions can be achieved with the following command:
AT&F Restoretofactorydefaults
3.2.1.3 Basic Configuration:
When first powered, the GS1500M module will initialize and then send “Serial2WiFi APP” to the UART port, whereupon the module is ready to receive commands. (If the module has been configures to auto connect, a network status message is sent instead.)
The antenna output should be set to the printed circuit board antenna or the external antenna connected to the u.FL connector. The antenna selection command is:
AT+ANTENNA=<n>
Where <n> specifies whether the printed circuit board antenna or the external u.FL antenna is selected:
1 = printed circuit board antenna 2 = u.FL connector
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3. WiFi Module Continued
3.2 WiFi Module Operations continued
3.2.2 Operation examples
Below are several examples of configuring the GS1500M module. The UDP Client example configures the module to connect to an existing infrastructure WiFi network using command mode, then sends UDP data to a server using data mode. The Web Provisioning example is a command mode sequence of instructions that initiates the module’s provisioning web server. The Auto Connect example configures the unit to automatically connect as a TCP server to a specific client. Upon restart in the Auto Connect mode a connection is made between the client and server, at which point data can be transparently passed back and forth between them.
These examples assume that the GS1500M WiFi module begins configured in its default state, and that no encryption is used.
3.2.2.1 UDP Client
Issuing the following sequence of commands will set up the GS1500M module as a station in an existing infrastructure WiFi network:
AT+WM=0 Mode(0=infrastructure).
AT+NDHCP=1 DHCP(1=enable).
AT+WA=<SSID> AssociatewithaWiFinetworkhaving
designatedSSID.
AT+NCUDP=<Dest-Address>,<Port> SetupUDPClient.SuccessfulCommandwillreturn Returns:CONNECT<CID> aConnectionIdentiernumber.
At this point UDP data can be sent to a server (at <Dest-address>, <port>) with the following command:
<Esc>S<CID><data><Esc>E  SendUDPdata.
3.2.2.2 Web Provisioning
The web provisioning feature included in the default firmware load allows the GS1500M to host a few simple web pages that allow for provisioning of the module. It can be set by issuing the following commands:
AT+NSET=<IP>,<SUBNETMASK>,<GATEWAYIP> StaticConguration.
AT+WM=2 Mode(2=limitedAccessPoint).
AT+WA=<SSID>,,<CHANNEL>  StartAPnetworkusingSSIDondesignatedCHANNEL.
AT+DHCPSRVR=1 DHCPserver(1=enable).
AT+WEBPROV=<USERNAME>,<PASSWORD> Startwebprovisioning.TheUSERNAMEandPASSWORD
willberequiredtologin.
At this point a client can connect to the GS1500M module at it’s <IP> address. The GS1500M will request the <USERNAME> and <PASSWORD> to be entered. This gives access to web pages hosted on the module that allow for provisioning of the GS1500M.
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3. WiFi Module Continued
3.2 WiFi Module Operations continued
3.2.2 Operation examples
3.2.2.3 Auto Connect
In the example below, the GS1500M module is configured to connect to an access point, the auto connect feature is enabled, and the settings are stored in a profile. When re-started, the unit will connect to the access point whereupon
serial data can be transferred to and from a remote IP address.
AT+NDHCP=1  DHCPenable
AT+WAUTO=0,<SSID>  Setautowirelessparameters(0=infrastructure).
AT+NAUTO=1,1,<DestinationIP>,<Port> Setautonetworkparameters(TCPserver).
ATC1  Settheautoconnectmode
AT&W0 Savethecongurationinprole0
AT&Y0 Settoloadprole0atstart-up
At this point the GS1500M module should be restarted, either by pulling the RESET pin (WiFi1500CF pin 47) low or by removing and re-establishing power to the unit. The GS1500M will respond with its network settings upon successfully associating with the wireless network. Serial data can now be sent to and from the GS1500 via the serial port. A telnet session or a simple TCP terminal can be opened at the client (destination IP) to demonstrate the sending and receiving of serial data.
In order to terminate the Auto Connect session, enter a sequence of three ‘+’ (plus) symbols followed by one second of no data being entered. Following this the command mode will be available.
3.3 WiFi Module Firmware
The GS1500M WiFi module can be loaded with several versions of the S2W (Serial-to-WiFi) application firmware. Because of limited memory, certain features are only exclusively available in specific firmware loads. By default, the module is loaded with the Web Provisioning firmware. The table below illustrates the features available on the available firmware loads:
Firmware Notes
Enterprise Security (EAP) SPI Mode 0 Enables SPI interface Web Server Provisioning DEFAULT Wi-Fi Protected Setup (WPS) RF Test
Contact Janus about providing the WiFi1500CF with firmware loads other than the default Web Server Provisioning version.
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4. GPS Module (Optional)
The Telit JN3 GPS receiver provides position and timing information using standard NMEA (National Marine Electronics Association) strings over a UART interface. In addition, a 1PPS signal is available to provide an accurate timing mark when a high quality fix is available. A complete description of this module is beyond the scope of this document. Detailed hardware and operational information can be found in the JN3 GPS receiver documentation listed in the Applicable Documents section.
4.1 GPS Module Connections
The connections between the JN3 module and the WiFi1500CF pins are shown in the table below.
JN3 WiFi1500CF JN3 WiFi1500CF Pin Name Interface Pin Name Pin Name Interface Pin Name
1 NC N/C 13 GND GND 2 NC N/C 14 NC N/C 3 1PPS Level Shifter 8 1PPS 15 NC N/C 4 EXT_INT N/C 16 NC N/C 5 NC N/C 17 NC N/C 6 NC N/C 18 SDA2 N/C 7 BOOT Internal1 19 SCL2 N/C 8 NC N/C 20 TX Level Shifter 34 GPS_X 9 VCC_IN 3.3V 21 RX Level Shifter 33 GPS_RX 10 GND GND 22 VBATT N/C 11 RF_IN u.FL Connector 23 VCC_IN 3.3V 12 GND GND 24 GND GND
N/C – Not Connected 1 The GS1500M VOUT_1V8 pin can be jumpered to the JN3 module’s BOOT pin. See the Configuration Option section.
Antenna
A u.FL connector is provided for connecting a GPS antenna. This connector is located on the top surface of the WiFi1500CF board at the pin 25 corner. This connector also provides a 3.3 volt bias at the antenna connector for powering remote amplifiers that are often built in to GPS antennas.
Do not short the antenna output
UART interface
The UART on the JN3 GPS module is brought out through a level shifter and support is provided for the TX and RX signals. The default setting for the JN3 GPS UART interface is 4800 baud, 8 bit characters with no parity bits and one stop bit (8N1).
The JN3 GPS module provides a NMEA interface on the UART; more information can be found in the ‘JN3 Product Description’ document listed in the Applicable Documents section.
1PPS output
A 1PPS (one pulse-per-second) output is available from the GPS receiver when a high quality (3D) position fix is obtained. The pulse width is 200 ms and the leading edge of the pulse is synchronous with one second timing.
The 1PPS signal appears on the WiFi1500CF pin that is designated as the GS1500M UART0 DCD pin. The DCD pin is a standard 1PPS interface on serial connections to hosts running NTP (network timing protocol) applications. For a full implementation, the JN3 UART TX and RX signals should also appear on the UART0 interface. This can be accomplished by changes to the configuration jumpers. See the Configuration Options section.
WiFi1500CF Plug-In Hardware User Guide JA03-UM-WiFi Page 11 Rev: P00 Date: 03/13/14
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4. GPS Module (Optional) continued
4.2 WiFi Module Operation
Hardware set-up requires the following:
- UART connection (JN3 UART). The TX and RX lines are supported on the WIFi1500CF pins 34 (GPS_TX) and 35 (GPS_RX). These interface pins are at VIO voltage levels; the default VIO value is 2.8 volts. The default UART configuration is 9600 baud, 8 bits, no parity, 1 stop bit (8N1).
- Antenna connection. The JN3 requires that a suitable external GPS antenna be connected to the u.FL connector on the WiFi1500CF board. The GPS antenna has to be located so as to allows a reasonable ‘view of the sky’ in order to receive the GPS satellite signals.
- Power. Apply power to the unit by providing 5.0 +/- 0.25 volts across the WiFi1500CF SUPPLY and GND pins.
Basic operation of the JN3 GPS module consists of utilizing the NMEA messages that are output by the module on the UART interface. By default, the module will output the following NMEA messages on start-up:
Message Rate
GGA once per second GSA once per second RMC once per second GSV once every five seconds
NMEA input messages can be used to control a number of the JN3 GPS modules operational characteristics, including the UART interface parameters, the standard NMEA messages being output, and the rate at which the NMEA messages are output. See the SiRF NMEA Reference Manual for additional information. Below is a complete list of the available NMEA messages:
Message Description
GGA GPS Fixed Data GLL Geographic Position – Latitude/Longitude GSA GNSS DOP and Active Satellites GSV GNSS Satellites in View RMC Recommended Minimum Data VTG Course Over Ground and Ground Speed ZDA 1PPS Timing Message
In addition to the NMEA messages, the JN3 module supports the SiRF One Socket Protocol (OSP) protocol. Please refer to the Applicable Documents section for further reference material.
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5. Configuration Options
Interface Voltage* R22 R23 USAGE
2.8 volts (default) 0 ohm OMIT T2 & 400AP
3.3 volts OMIT 0 ohm user interface
GS1500M Flash programming
CF SERVICE pin 17 pulled low
-- or -­JP1 installed
J2F GPS Flash programming
JP2 installed
GS1500 SPI INTERFACE CF PIN FUNCTION
GPIO1 SPI CLK GPIO2 SPI CS GPIO3 SPI MOSI GPIO4 SPIMISO GPIO5 SPI WAKEUP
5. Configuration Options Notes
* Interface voltage: VIO affects the following CF terminals:
GPIO1 GPIO5 UART TX CELL LED GPS TX+ GPIO2 GPIO6 UART RX GPS LED GPS RX+ GPIO3 GPIO7 UART RTS TRACE RX GPIO4 UART DCD UART CTS TRACE TX
+ GPS RX/TX can be configured to bypass level shifters for use with the 400AP.
GS1500 ADC/DAC INTERFACE
CF PIN FUNCTION INSTALL
ADC1 GS ADC1/DAC R3 ADC2 GS ADC2 R4 DAC GS ADC1/DAC R5
GS1500 SERIAL ASYNC CF PIN FUNCTION INSTALL
GPIO7 ASYNC R1
GS1500 drives ASYNC high during asynchronous serial output.
GS1500 I2C INTERFACE CF PIN FUNCTION USAGE
I2C SCL I2C CLK install R9 to enable I2C SDA I2C DATA install R10 to enable optional pull-up resistors: I2C CLK - R21 I2C DATA - R20
J2F GPS I2C INTERFACE R9 R10
disabled (default) OMIT OMITt enabled 0 ohm 0 ohm
GPS POWER SUPPLY BYPASS
Dedicated GPS low noise supply can be omitted by: Installing: FB5 Removing: U8 FB4 R29,R30 C18,C19,C20,C21
GS1500 STANDBY MODE
Not supported. Allows placing GS1500 module into a low power mode for a set time period.
UART TX/RX INTERFACE WIFI GPS R14 R15 R16 R19 R8 R13 R6 R7 R12 USAGE
UART0 TX/RX @VIO GPS TX/RX @VIO 0 ohm 0 ohm OMIT OMIT OMIT OMIT 0 ohm 0 ohm OMIT T2 w VIO@2.8V (default) UART0 TX/RX @VIO GPS TX/RX @3.3V OMIT OMIT 0 ohm 0 ohm OMIT OMIT 0 ohm 0 ohm OMIT 400AP w VIO@2.8 disabled
UART0 TX/RX @VIO
OMIT OMIT OMIT OMIT 0 ohm 0 ohm OMIT OMIT 0 ohm GPS w/ PPS on DCD
WiFi1500CF Plug-In Hardware User Guide JA03-UM-WiFi Page 13 Rev: P00 Date: 03/13/14
© Copyright 2014 Janus Remote Communications Specifications subject to change without notice
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5. Configuration Options continued
Figure 3. Top Components
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Figure 4. Bottom Components
© Copyright 2014 Janus Remote Communications Specifications subject to change without notice
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6. Specifications
General:
Dimensions: 2.75” x 1.4” x 0.475”
Operational temperature range: -40°C to 85°C
RoHS compliant
WiFi Radio:
802.11b/g/n compliant
Security Protocols:
- WEP
- 802.11i WPA/WPA2 Personal Security (AES and TKIP)
- Enterprise Security (EAP-FAST, EAP-TLS, EAP-TTLS, PEAP)
Networking Protocols:
- UDP, TCP/IP (IPv4)
- DHCP, ARP, DNS, SSL, HTTP/HTTPS Client and Server
Interface:
- UART to 921.6kbps
- SPI up to 3Mbps
FCC Certified
CE Compliant
GPS Receiver (optional):
L1 band 48 channel receiver
NMEA data, PPS output
Time to First Fix (90% @ -130 dBm):
- 1s Hot Start
- <35s Cold Start
Sensitivity:
- Acquisition: -147 dBm
- Navigation: -160 dBm
- Tracking: -163 dBm
Dedicated GPS antenna connection with active antenna
WiFi1500CF Plug-In Hardware User Guide JA03-UM-WiFi Page 15 Rev: P00 Date: 03/13/14
© Copyright 2014 Janus Remote Communications Specifications subject to change without notice
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Page 16
WiFi1500CF Plug-In Modem User Manual
7. Ordering Information
Model DESCRIPTION WiFi1500CF v1.0 Modem WiFi Plug-In Modem – GPS enabled WiFi1500CF v2.0 Modem WiFi Plug-In Modem – without GPS
8. Applicable Documents
CF Plug-In Products: Terminus T2 Products User Manual – Hardware Guide Terminus 400AP Products User Manual – Hardware Guide GainSpan GS1500M WiFi module: GS1500M Data Sheet Serial-to-WiFi Adapter Application Programming Guide Serial-to-WiFi Adapter Command Reference AN-025 Serial to WiFi Bridge AN-039 Provisioning Methods with S2W AN-045 S2W UDP, TCP, HTTP Connection Management Examples Telit JN3 GPS Receiver: JN3 Product Description JN3 Hardware User Guide SiRF NMEA Reference Manual SiRFstarIV™ One Socket Protocol Interface Control Document One Socket Protocol Interface Control Document Including SiRF Binary Protocol Reference Manual
Revision History
Revision Revision Date Note
P00 03/13/2014 Preliminary WiFi1500CF Plug-In User Manual
Division of The Connor-Winfield Corporation
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630.499.2121 Fax: 630.851.5040
www.janus-rc.com
Janus Remote Communications Europe
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Shannon Industrial Estate
Shannon, Co. Clare, Ireland
Phone: +353 61 475 666
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