THE CONNOR WINFIELD CW85VX-XX NavTrac WiFi Enabled GPS User Manual Exhibit D Users Manual per 2 1033 b3

THE CONNOR-WINFIELD CORPORATION NavTrac WiFi Enabled GPS Exhibit D Users Manual per 2 1033 b3

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CW85VX XX User Manual HTML Version

Exhibit D Users Manual per 2 1033 b3

Bulletin NS24-DS

Revision P01

Date 10 June 2009

NavTrac

CW85

WiFi

Enabled

GPS

Ver III

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

Figure and Table Contents

List of Figures

Figure 1 NavTrac Block Diagram -----------------------------------------------------------------------------------------5

Figure 2 NavTrac Dimensions ------------------------------------------------------------------------------------------ 12

Figure 3 External Battery Connection ---------------------------------------------------------------------------------- 13

Figure 4 Optimal Orientation ------------------------------------------------------------------------------------------- 13

List of Tables

Table 1 Status LED -------------------------------------------------------------------------------------------------------6

Table 2 NavTrac Speciﬁcation ----------------------------------------------------------------------------------------- 11

Table 3 WiFi Transmission Distance ---------------------------------------------------------------------------------- 12

Table 4 Data Type Table ------------------------------------------------------------------------------------------------ 15

Table 5 NavSync OID Table -------------------------------------------------------------------------------------------- 22

Table 6 Revision History ----------------------------------------------------------------------------------------------- 27

Table 7 Additional Documentation List ------------------------------------------------------------------------------- 27

Contents

1 DESCRIPTION ---------------------------------------------------------------------------------------------3-9

1.1 Introduction ---------------------------------------------------------------------------------------- 3

1.2 Global Positioning System (GPS) ---------------------------------------------------------------- 3

1.3 GPS Positioning and Navigation ----------------------------------------------------------------- 3

1.4 Operation ------------------------------------------------------------------------------------------ 5

1.5 Safe Mode ------------------------------------------------------------------------------------------ 8

1.6 Special Considerations when modifying GPS update rate/messages ------------------------ 8

1.7 Diagnostic Messages ------------------------------------------------------------------------------ 9

2 SPECIFICATION --------------------------------------------------------------------------------------- 10-13

2.1 Performance ------------------------------------------------------------------------------------- 10

2.2 Transmission Distance --------------------------------------------------------------------------- 12

2.3 Mechanical Dimensions ------------------------------------------------------------------------- 12

2.4 External Battery Charge Connection ----------------------------------------------------------- 13

2.5 Optimal Orientation ------------------------------------------------------------------------------ 13

3 DEVICE CONFIGURATION ------------------------------------------------------------------------- 14-15

3.1 General Information ------------------------------------------------------------------------------ 14

3.2 Data Type Table ---------------------------------------------------------------------------------- 15

4 NMEA MESSAGES ----------------------------------------------------------------------------------- 16-20

4.1 General NMEA Information ---------------------------------------------------------------------- 16

4.2 GPGGA, GPS ﬁx data --------------------------------------------------------------------------- 17

4.3 GPGLL, Geographic position, Lat/Lon --------------------------------------------------------- 17

4.4 GPGSA, GPS DOP and Active satellites ------------------------------------------------------- 18

4.5 GPGSV, GPS Satellites in View ----------------------------------------------------------------- 18

4.6 GPRMC, Recommended Minimum data ------------------------------------------------------- 19

4.7 GPZDA, UTC Time and Date -------------------------------------------------------------------- 19

4.8 GPVTG, Course over ground and Ground speed --------------------------------------------- 20

5 Lithium Ion Battery and Integrated Charger ------------------------------------------------------20

6 Installation Instructions for Initial Setup ----------------------------------------------------------21

7 Appendix 1 ---------------------------------------------------------------------------------------------- 22-26

NavSync OID Tables ----------------------------------------------------------------------------- 22

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

1 Description

1.1 Introduction

The NavTrac combines GPS technology with WiFi transport. Incorporating NavSync’s own CW20 module with ultra

sensitive GPS receiver, the CW85 provides an 802.11b/g transmission containing NMEA streams giving device loca-

tion (longitude and latitude) and UTC time. The 802.11b/g supports WPA2 encryption and is fully conﬁgurable to a

speciﬁc network.

1.2 GLOBAL POSITIONING SYSTEM (GPS)

The Global Positioning System (GPS) is a military satellite based navigation system developed by the U.S. Department

of Defense and made freely available to civil users. Civilian use of GPS is available at the user’s own risk, subject to the

prevailing DOD policy or limitations, and to individuals understanding of how to use the GPS.

In today’s satellite constellation there are a minimum of 24 operational satellites (plus several operational spares) in 6

orbital planes, at an altitude of about 22,000 km. The GPS system can give accurate 3-D position, velocity, time, and

frequency, 24 hours a day, anywhere in the world. GPS satellites transmit a code for timing purposes, and also a ‘navi-

gation message’ that includes their exact orbital location and system integrity data. Receivers use this information,

together with data from their internal almanacs, to precisely establish the satellite location. The receiver determines po-

sition by measuring the time taken for these signals to arrive. At least three satellites are required to determine latitude

and longitude if the altitude is known (e.g. a ship at sea), and at least a fourth to obtain a 3-D ﬁx.

1.3 GPS Positioning and Navigation

The NavTrac needs to be able to see at least 4 satellite vehicles (SV’s) to obtain an accurate 3-D position ﬁx. When

traveling in a valley or built-up area, or under heavy tree cover, you will experience difﬁculty acquiring and maintain-

ing a coherent satellite lock. Complete satellite lock may be lost, or only enough satellites (3) tracked to be able to

compute a 2-D position ﬁx, or even a poor 3D ﬁx due to insufﬁcient satellite geometry (i.e. poor DOP). Note also, that

inside a building or beneath a bridge, it probably will not be possible to update a position ﬁx. The Receiver can operate

in 2-D mode if it goes down to seeing only 3 satellites by assuming its height remains constant. But this assumption

can lead to very large errors, especially when a change in height does occur. A 2-D position ﬁx is not to be considered

a good or an accurate ﬁx – it is simply a “better than nothing” ﬁx.

The receiver’s antenna must have a clear view of the sky to acquire satellite lock. It is the location of the antenna which

will be given as the position ﬁx. The antenna is located under the NavTrac label and should face upwards for best

signal reception. If the antenna faces downwards, it may not be possible to successfully track any satellites. Mount-

ing the NavTrac in a vertical position is also acceptable, but the antenna may not be able to receive the satellite signals

from those satellites out of line-of-sight from the front of the enclosure, making this a less than ideal position. Please

also note that any obstructions (dense foliage, tall buildings) can obstruct the line-of-sight to the satellites and make

tracking more difﬁcult.

To measure the range from the satellite to the receiver, two criteria are required: signal transmission time and signal

reception time. All GPS satellites have several atomic clocks to keep precise time. These are used to time-tag the mes-

sage (i.e. code the transmission time onto the signal) and to control the transmission sequence of the coded signal.

The receiver has an internal clock to precisely identify the arrival time of the signal. Transit speed of the signal is a

known constant (the speed of light), therefore: time x speed of light = distance.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

Once the receiver calculates the range to a satellite, it knows that it lies somewhere on an imaginary sphere whose

radius is equal to this range. If a second satellite is then found, a second sphere can again be calculated from this

range information. The receiver will now know that it lies somewhere on the circle of points produced where these two

spheres intersect. When a third satellite is detected and a range determined, a third sphere intersects the area formed

by the other two. This intersection occurs at just two points. The correct point is apparent to the user, who has a rough

idea of position. A fourth satellite is then used to synchronize the receiver clock to the satellite clocks. In practice, 4

satellite measurements are sufﬁcient for the receiver to determine a position, as one of the two points will be totally

unreasonable (possibly many kilometers out into space).

This assumes the satellite and receiver timing to be identical. In reality, when the NavTrac compares the incoming

signal with its own internal copy of the code and clock, the two will no longer be synchronized. Timing error in the

satellite clocks, the Receiver, and other anomalies, mean that the measurement of the signals transit time is in error.

This effectively, is a constant for all satellites, since each measurement is made simultaneously on parallel tracking

channels. Because of this, the resultant ranges calculated are known as “pseudo-ranges”.

To overcome these errors, the NavTrac matches or “skews” its own code to become synchronous with the satellite

signal. This is repeated for all satellites in turn, thus measuring the relative transit times of individual signals. By ac-

curately knowing all satellite positions, and measuring the signal transit times, the user’s position can be accurately

determined. Utilizing its considerable processing power, the NavTrac rapidly updates these calculations from satellite

data to provide a real time position ﬁx.

The following DOP terms are computed by the NavTrac:

HDOP Horizontal Dilution of Precision (Latitude, Longitude)

VDOP Vertical Dilution of Precision (Height)

TDOP Time Dilution of Precision (Timing errors)

PDOP Position Dilution of Precision (3-D positioning)

GDOP Geometric Dilution of Precision (3-D position & Time)

Estimated accuracy = DOP x measurement accuracy

While each of these terms can be individually computed, they are formed from covariances and are not independent

of each other. For example, a high TDOP will cause receiver clock errors which eventually results in increased position

errors. Horizontal accuracy ﬁgure of 95% is the equivalent to 2RMS (twice root-mean-square) or twice the standard

deviation radial error. Similarly, for vertical and time errors, a ﬁgure of 95% is the value of 2 standard-deviations of

vertical or time error.

Root-mean-square (RMS) error is the value of one standard deviation (67%) of error.

Circular Error Probability (CEP) is the value of the radius of a circle, centered at a position containing

50% of the position estimates.

Spherical Error Probability (SEP) is the spherical equivalent of CEP, which is centered at a position

containing 50% of the position estimates.

CEP and SEP are not affected by large errors, which could make the values an overly optimistic measurement. These

probability statistics are not suitable for use in a high accuracy positioning system. The NavTrac reports all accuracies

in the form of a standard deviation (RMS) value.

•

1 Description continued

1.3 GPS Positioning and Navigation continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

1.4 Operation

The default 802.11 network settings of the CW85 are as follows:

Topology: Infrastructure Mode

Source IP: DHCP client

Source Port: Varies

Channel: 6

Network SSID: CW85_Setup (higher priority) or LTRX_IBSS (lower priority)

Data Rate: 1 Mbps

WPA2 Security Passphrase: GSDemo123

Note: The unit will also transmit on a network with security disabled even though the phrase

is conﬁgured.

Packet type: UDP

Destination IP: 192.168.1.2

Destination Port: 9999

Upon power up, the NavTrac will scan for 802.11b/g networks to associate with and attempt to obtain an IP address

through DHCP. During this time, the GPS receiver is turned on and the NavTrac will attempt to obtain a valid GPS ﬁx.

Once the GPS receiver is turned on, a ‘heartbeat’ LED (POWER) will blink once per second indicating that the NavTrac

unit is fully operational. The STATUS LED will give an indication of network status and GPS status as indicated in Table 1.

Figure 1 CW85 Block Diagram

802.11 WiFi

Antenna

Li lon Battery

& Integrated Charger

Power Reg

802.11 TX/RX ARM7 Microntroller

ADC Input

Digital Trigger

Hardware Control

Interrupt/Wakeup Input

Serial Port

Available on PCB Only

*May require special software build for some features

Flash

Data Storage

Integrated GPS

Antenna

GPS Receiver

LED Indicators

1 Description continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

1.4 Operation continued

Status LED

Condition Status LED

No network detected and no GPS Fix OFF

Network detected but no GPS Fix Blinks once every 2.5 seconds

No network detected but GPS Fix Blinks once every 5 seconds

Network detected and GPS Fix Blinks once every 500 mS

Table 1: Status LED

The default conﬁguration of the unit is set to send out NMEA messages immediately to the user conﬁgured server

address. This can only occur if the unit has acquired an IP address and the network it has connected to is compat-

ible with the conﬁgured destination IP (192.168.1.2 by default). This default behavior may be changed by the user via

SNMP – see Section 3 ‘Device Conﬁguration via SNMP’.

When the unit ﬁrst powers on, the GPS “cold” starts, which means that the GPS has no ephemeris or almanac infor-

mation. This mode requires higher satellite signal strength to acquire a GPS ﬁx than is required for tracking. Once

the unit begins tracking satellites, it begins to download the almanac and ephemeris information. Depending on the

number of satellites in view with sufﬁcient strength, this could take 12-15 minutes, although in an open-sky situation

it will occur much more quickly. After the GPS has successfully downloaded the ephemeris and almanac information,

lower level signal testing may be done.

Note: The accuracy numbers quoted in the speciﬁcations section assume that the unit has valid ephemeris and

almanac information.

The following conﬁguration options are not available on V3.0 and V3.01.

The operation of the NavTrac unit is highly user conﬁgurable. Not only can the network settings be conﬁgured via the

SNMP interface, but the operational parameters can be changed. Appendix 1 lists the parameters that are conﬁgurable,

as well as their default values. By default, the device will send out all of the NMEA sentences via UDP. However, indi-

vidual sentences can be turned off, and the rate at which these sentences can be sent out can vary (see Section 1.6).

Additionally, the user can choose to send out packets via TCP/IP instead of UDP/IP for both the current GPS data, and

for the logged data in ﬂash memory.

Changes to the connection type (TCP/UDP) will not take effect until the device is restarted. Changes to the TCP port

or destination IP will also take effect only after the device is restarted. Alternatively, because UDP is a ‘connectionless’

protocol, any changes to the port or destination IP will take effect on the next transmission. Additionally, changes to

most of the other network settings require a restart to take effect. This allows the user to fully conﬁgure the device

before those changes take effect.

The NavTrac will check for association prior to sending out the NMEA sentences at the conﬁgured transmission rate. If

the unit is not associated with a network, it will rescan every 10 seconds until it ﬁnds one of the conﬁgured networks.

There are three different SSIDs that the unit can be conﬁgured to scan, each one with its own channel. These networks

can be used for either Infrastructure mode or AdHoc mode (Note: to utilize ADHOC mode for normal situations, do not

use the GSNADHOCSSID and corresponding channel settings, but use the GSNAPSSID1-3 settings). In AdHoc mode,

the unit will not create an AdHoc network, but will scan for an existing network.

Security options can be set per SSID. Available security options are no encryptions, WEP64, WEP128, WPA, or WPA2-

PSK. Each SSID can support all of these security options, or a subset. This is selectable through the SNMP interface.

By default, all security options are supported. It is recommended to enable only those security options that are neces-

sary to enable the most secure operation. Note: this operation is not available on V4.0 and lower.

1 Description continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

1 Description continued

1.4 Operation continued

The NavTrac utilizes ﬂash memory for saving the NMEA streams in case the unit is unable to transfer the data. This

could occur if a network is not present, if the unit is unable to associate with the network, or if there is a TCP socket

problem (if TCP has been set as the default for transmission). The user can also control how often the messages are

saved to ﬂash memory. For example, the unit can be conﬁgured to transmit every 3 seconds, while, at the same time,

the unit may only save to ﬂash memory every other period (every 6 seconds) to maintain the longest history pos-

sible in memory. Once the NavTrac unit is re-associated with the network (or, with TCP, has re-established the socket

connection), it will send out the contents of its ﬂash memory, starting with the oldest data and ending with the newest,

then erase its memory after the entire contents have been successfully transmitted. As long as the NavTrac is able to

detect that it is on the network, it will continue its normal operation of sending out the selected NMEA streams at the

selected rate.

If the NavTrac is conﬁgured for TCP rather than UDP communications, any socket error on the TCP connection causes

the data to be saved to ﬂash memory. If the socket connection is closed, it will attempt to restart it.

Additional functionality has been built into the NavTrac to enhance the data logging feature. There are commands

to save all data, even if there is no network issue. The rate at which the data is saved is controlled in the same way

as when it is saving only unsuccessful transmissions. A command to force a log dump over the conﬁgured IP/Port

is available in this mode, as well as a command to erase the entire log. Because the data is saving continuously to

the ﬂash memory, a dump of the ﬂash memory will not occur automatically. The user must tell the unit to dump its

memory. As the log becomes full, the oldest data is erased and overwritten with the newest data. If the device is pow-

ered down with data in its memory, it will recover the beginning and end of the lost data when it is powered on again.

New data will saved in a continuous fashion right after the newest data in memory. If no data is in memory, an internal

ﬂag in volatile RAM will remain set until the ﬁrst data bytes are stored in memory. The unit will then attempt to send

out this data. Since this is a volatile ﬂag, it will not remain set following a power cycle.

After a data log is sent out, the ASCII characters “log complete” will be sent out at the end of the transmission, signal-

ing that all of the data has been retrieved from memory. At that point, the ﬂash memory is given the command to erase

the data log. Erases are done in the spare time of the system, and a full log erase can take up to 2 minutes, although

the typical time is about 1 minute. New data will still be saved to memory during the log erase. If a unit is powered off

during the erase cycle, it will not continue to erase on the next power up. Instead, the new data being stored into the

ﬂash will be appended to whatever data remained in memory.

Key Features of the NavTrac include:

• Sensitive GPS Receiver with Tracking as Low as -150dBm

• 802.11b/g Compliant

• WPA2 Encryption

• Integrated Rechargeable Battery

• User Programmable Update Rates

• Internal Flash Memory for Saving GPS Data

The speciﬁcations in the following sections refer to the standard software builds of the NavTrac. The performance and

speciﬁcation of the NavTrac can be modiﬁed through the User Conﬁguration and additional I/O capabilities may be

available with special software builds. Please contact the factory for more details.

Please refer to section 4 NMEA Messages for detailed information on the available NMEA messages.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

1 Description continued

1.5 Safe Mode

The NavTrac has been conﬁgured with a Safe Mode. If the unit cannot associate with any of the three conﬁgured SSIDs,

or it loses its association and cannot re-associate, it will enter a mode that will search for the AdHoc network NAVTRAC_

ADHOC on channel 11, with no security. In this mode, the IP address of the device changes to 192.168.1.50 and it search-

es for an SNMP manager at 192.168.1.51. It will search for approximately 25-30 seconds, after which time it will go back

to its normal search for the three conﬁgured SSIDs. This behavior will only be displayed once per power on.

The recommended method for entering this mode is to power the device off, and turn off any of the networks it is

conﬁgured to associate with. Then start the NAVTRAC_ADHOC network, using the IP 192.168.1.51 and turn the

NavTrac on. Once the NavTrac sees the AdHoc network, conﬁguration via SNMP is available. The NavTrac will remain

in this mode until the connection has been lost for a short period of time. Please note, this mode occurs during the

normal operational mode, so the device is still obtaining GPS data during this time. If the NavTrac is able to resolve the

destination IP, it will attempt to send packets.

The NavTrac also supports a setting for returning to its original factory conﬁguration. This command will reset the

device to the defaults in Appendix 1. However, the MAC address will be reset to the value 00 50 4A 9B A0 00. The MAC

address MUST be reset to its initial value (written on the label on the backside of the unit) after using this command.

Failure to do so may result in an unusable unit. After receiving the command to reset the MAC address, the NavTrac

should have the power cycled.

1.6 Special considerations when modifying GPS update rate/messages

(OID .1.3.6.1.4.1.28295.99.1.2.1.16.5)

This takes effect when the internal counters controlling each GPS message reach 0. For example, if you’ve set the mes-

sage to 100 seconds, and then change it to 10, you have to wait until the 100 second period is up before the 10 second

period takes effect. Also note, all messages that are to be enabled should be occurring at a common interval prior to

changing this rate or changing them may result in different GPS messages reporting at different epochs.

(OID .1.3.6.1.4.1.28295.99.1.2.1.19.5)

This takes effect when the internal counters controlling the GPS save rate reach 0. If the data transmission rate is set

to 3, and this rate is set to 1, then data will save every 3 seconds if the network is not detected. If the data transmis-

sion rate is set to 3, and this is set to 2, then this would save every 6 seconds if the network is not detected.

(OID .1.3.6.1.4.1.28295.99.1.2.1.21.5)

This OID controls which GPS messages are enabled. The bit map of the binary representation of the number

conﬁgured is as follows:

Bit 0 - GPGGA,

Bit 1 - GPGLL,

Bit 2 - GPGSA,

Bit 3 - GPGSV,

Bit 4 - GPRMC,

Bit 5 - GPZDA,

Bit 6 - GPVTG

For example: 127 is 0111 1111b, which enables all messages (the default)

3 is 0000 0011b, which enables GPGGA and GPGLL

Note that if the current transmission rate is not 1 second intervals, then messages that are newly enabled could be on

a different epoch than previously enabled messages. The recommended method of changing the messages is to set

the transmission rate to 1 second, enable the required messages, wait until all messages are appearing on 1 second

intervals together, and then change the data rate to the desired number.

Failure to follow the above can result in messages being sent that are not from the same EPOCH, as each messages

runs on its own counter and updating the interval does not update the counter for a message until that counter = 0.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

1 Description continued

1.7 Diagnostic Messages

(OID .1.3.6.1.4.1.28295.99.1.2.1.11.5)

A diagnostic message containing the RSSI and VBAT voltage as measured on board is available on command to be

sent out the data port. Each time a 0 or a 1 is written to the appropriate OID, a message of the form:

<MAC ADDY>,$PNVTC, RSSI, VBAT*<checksum>

where RSSI is the received signal strength and VBAT indicates battery level.

This VBAT voltage is not the actual battery voltage at the battery, but the voltage as measured on board the ARM

processor. Currently, this number corresponds to the levels where the unit goes into ‘forever standby’ mode. This will

occur at 630 currently, and 650 for turn on. SNMP warning messages begin at 730.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

2.1 Performance

CW85 WIFI ENABLED GPS SPECIFICATIONS

GPS RECEIVER SPECIFICATIONS

Physical Note

Module Dimensions 3.773” (W) x 3.149” (H) x 1.253” (D)

95.83mm (W) x 79.98mm (H) x 31.83mm (D)

GPS Performance

GPS Channels 16

Frequency 1575.42 MHz – L1 C/A Code

TTFF Cold Start @ -135 dBm 46 seconds 1, 6

TTFF Warm Start @ -141 dBm 34 seconds 1, 6

TTFF Hot Start @ -141 dBm 5 seconds 1, 6

Re-acquisition Time @ -147 dBm <3 seconds 2

Acquisition Sensitivity

(ﬁx not available)

TTFF (Hot) with all signals at -138 dBm: 30 s 3

TTFF (Hot) with all signals at -141 dBm: 41 s

(ﬁx available) -147 dBm 4

Tracking Sensitivity -150 dBm 5

Static Accuracy 50% Conﬁdence (CEP) 1.2 m 6

95% Conﬁdence (CEP) 3.1 m 6

Maximum Horizontal Speed 515 m/s 7

Maximum Vertical Speed 15 m/s 8

Maximum Altitude 18 Km 9

Maximum Acceleration (g) 2 g

WIFI SPECIFICATIONS

WiFi Performance

Maximum Transmit Power 15 dBm

Frequency Band 2.4GHz ISM

Transmission Speed 1Mbps default, contact factory for 2Mbps

Modulation Direct-Sequence Spread Spectrum (DSSS)

Protocol 802.11b/g compatible

Security 802.11i (WPA2-PSK)

AES Encryption/Decryption Hardware implemented

2 Speciﬁcations

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

2.1 Performance continued

GENERAL SPECIFICATIONS

Power (Avg.) Transmitting ~1.1W Note

Operation When Not Transmitting <0.5W

Standby Mode <50 uA 10

Internal Li lon Rechargeable Battery 900 mAH

Battery Life 8+ hours 11

Battery Charge Current 500mA max 12

Battery Charge Temperature Range 0C to 45C

Operating Temperature Range -15°C to 60°C 13

Storage Temperature Range -20C to 45C 14

Shock / Vibration TBD

GPS Fix Rate Maximum Once per second

Wireless Transmission Period Default is once per second, user conﬁgurable via SNMP

ANTENNA REQUIREMENTS

802.11 Antenna Stubby 802.11 included, reverse SMA connection provided

GPS Antenna Internal Passive Antenna Provided

The speciﬁcations refer to the standard software builds of the CW85. The performance and speciﬁcation of the CW85 can be modiﬁed with the use of

customized software builds.

Table 2 CW85 Speciﬁcation

Notes:

1. These are RMS values

2. Maximum Sensitivity -147 dBm

3. Simulator Test, all signals at speciﬁed power level

4. Estimated

5. Simulator Test, continuous ﬁx with all signals at speciﬁed power level

6. Open-sky, 24 hrs statistic, active antenna (signal range is between 30 to 49 dB/Hz)

*Note: These values are antenna dependent and may vary

7. Limited by International Trafﬁc in Arms Regulation (ITAR)

8. Deﬁned by navigation integrity check

9. Limited by International Trafﬁc in Arms Regulation (ITAR)

10. Not available on some models

11. Continuous transmission, 1 ﬁx per second, 27°C

8 hours of operation are not guaranteed for the entire operational temperature range

12. Total current drawn by the device via USB port. If the device is operating during charge, the current

required for operation reduces the available charge current, maintaining a maximum draw of 500mA

13. Although the battery will continue to function from -15° to 60°C, the battery lifetime is reduced

14. Exceeding the speciﬁcations for storage range will decrease the life and capacity of the Lithium Ion battery

The unit will continue to operate above the storage temperature, but the battery life will be signiﬁcantly shorter

2 Speciﬁcations continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

2 Speciﬁcations continued

2.2 Transmission Distance

Estimation of maximum transmission distance on 802.11b/g signal versus transmission rate:

Open Plan Building Semi Open Ofﬁce Closed Ofﬁce

11 Mbps 160 m (525 ft) 50 m (165 ft) 25 m (80 ft)

5.5 Mbps 270 m (855 ft) 70 m (230 ft) 35 m (115 ft)

2.0 Mbps 400 m (1300 ft) 90 m (300 ft) 40 m (130 ft)

1.0 Mbps 550 m (1750 ft) 115 m (375 ft) 50 m (165 ft)

To give the longest possible transmission range, the NavTrac is conﬁgured to transmit at 1.0 Mbps.

Table 3 WiFi Transmission Distance

2.3 Mechanical Dimensions

Figure 2 NavTrac Dimensions

DO NOT SCALE DRAWING

FINISH

PROPOSED GPS TRACKER

MATERIAL

CONNOR-WINFIELD CORP. ANY

DRAWING IS THE SOLE PROPERTY OF

DATE

DRAWN BY

SIZE

SCALE:1:2 WEIGHT:

REV.

PROPRIETARY AND CONFIDENTIAL

THE INFORMATION CONTAINED IN THIS

CONNOR-WINFIELD CORP IS PROHIBITED.

WITHOUT THE WRITTEN PERMISSION OF

REPRODUCTION IN PART OR AS A WHOLE

DOC. CONTROL

SHEET 1 OF 1

ENG APPR.

COMMENTS:

MFG APPR.

DWG. NO.

DIMENSIONS ARE IN MILLIMETERS

TOLERANCES:

FRACTIONAL

ANGULAR: MACH BEND

TWO PLACE DECIMAL .05

THREE PLACE DECIMAL

NAME

1.25

31.83

79.99

3.15

95.97

3.78

1.06

79.99

3.15

R90

3.54

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

2 Speciﬁcations continued

2.4 External Connections

2.5 Optimal Orientation

DO NOT SCALE DRAWING

FINISH

PROPOSED GPS TRACKER

MATERIAL

CONNOR-WINFIELD CORP. ANY

DRAWING IS THE SOLE PROPERTY OF

DATE

DRAWN BY

SIZE

SCALE:1:2 WEIGHT:

REV.

PROPRIETARY AND CONFIDENTIAL

THE INFORMATION CONTAINED IN THIS

CONNOR-WINFIELD CORP IS PROHIBITED.

WITHOUT THE WRITTEN PERMISSION OF

REPRODUCTION IN PART OR AS A WHOLE

DOC. CONTROL

SHEET 1 OF 1

ENG APPR.

COMMENTS:

MFG APPR.

DWG. NO.

DIMENSIONS ARE IN MILLIMETERS

TOLERANCES:

FRACTIONAL

ANGULAR: MACH BEND

TWO PLACE DECIMAL .05

THREE PLACE DECIMAL

NAME

1.25

31.83

79.99

3.15

95.97

3.78

1.06

79.99

3.15

R90

3.54

External LED Indicators USB Battery Charge Connection Antenna Connection

ON/OFF SWITCH

SATELLITE

SATELLITE SATELLITE

Figure 3 External Connections

Figure 4 NavTrac Optimal Position

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

3.1 General Information

The NavTrac parameters are conﬁgured via a Simple Network Management Protocol (SNMP) manager. SNMP is an industry

standard protocol for networked devices. It deﬁnes the messaging protocol and the structure (but not the content) of an

information database, called the Management Information Base (MIB), which is contained in managed network devices.

There are several versions of SNMP, the NavTrac supports version 1 (SNMPv1).

The structure of the MIB is hierarchical in nature with several well deﬁned levels of parameters and the ability to deﬁne

more parameters at the device level. An SNMP agent and the MIB reside in the device, giving access to read-only and

conﬁgurable parameters. Each parameter has a unique object identiﬁer (OID), a dotted decimal notation which describes its

location in the SNMP hierarchy.

Managed devices in an SNMP network also have speciﬁed ‘community names’. These are used to group managers and

devices and help identify where information is sent. A managed device can have different community names for reading

and writing operations.

We recommend using Net-SNMP software as an easy method to understand and begin managing the NavTrac parameters

using SNMP. The Net-SNMP homepage is www.net-snmp.org, the latest version can be downloaded free of charge from

SourceForge.net at http://sourceforge.net .

Once installed, the net-SNMP software can be used to read (get) and write (set) to the NavTrac parameter database using

the “snmpget” and “snmpset” commands.

The format of a snmpget command is:

snmpget [OPTIONS] AGENT OID

Desired options include:

The SNMP version speciﬁer, ‘-v 1’. The NavTrac uses SNMPv1.

An output format speciﬁer, ‘-O a’, which requests string values to be printed as ASCII text.

The community name, ‘-c GSN_GET’. The community name for reading a NavTrac device is “GSN_GET”.

The agent for the NavTrac is the IP address of the unit, which is conﬁgured via DHCP. Please see Section 1.4 and Section 6

for the default network settings and details on how to bring the device up on a network.

The OID’s for the NavTrac parameters are given in the NavTrac OID Table. Each OID is preﬁxed with .1.3.6.1.4.1.28295.1

-or- .1.3.6.1.4.1.28295.99.1. Using the 1st table entry “GSNSENSORSERVERIP” as an example, the snmp data read re-

quest would be:

snmpget –v 1 -O a -c GSN_GET 192.168.1.102 .1.3.6.1.4.1.28295.99.1.2.1.6.5

A typical response would look like:

SNMPv2-SMI::enterprises.28295.99.1.2.1.6.5 = IpAddress: 192.168.1.2

Writing to parameter database is accomplished using the snmpset command.

The format of a snmpset command is:

snmpset [OPTIONS] AGENT OID TYPE VALUE

Necessary options are the same as snmpget, although the ‘-O’ output speciﬁer is not used. The type and value of the pa-

rameter must be speciﬁed in a single character, as shown in the following Data Type Table 4. The data type for the NavTrac

parameters appears in the in the NavTrac OID Table.

3 Device Conﬁguration via SNMP

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

Type TypeSpeciﬁer Description

INTEGER i A whole number

STRING s Character string

IpAddress a Four-octet string of hexadecimal data

Table 4: Data Type

The parameter value itself is enclosed in quotations.

Using the same example as above, writing to the 1st table entry “GSNSENSORSERVERIP” would look like:

snmpset –v 1 -c GSN_SET 192.168.1.102 .1.3.6.1.4.1.28295.99.1.2.1.6.5 a “192.168.1.4”

In this example, the NavTrac sensor server IP address is being set to “192.168.1.4”.

There is additional information on the format and use of these and many other operations available in the documentation

that accompanies the Net-SNMP software package.

3.2 Data Type Table

3 Device Conﬁguration via SNMP continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

4 NMEA Messages

4.1 General NMEA Information

Each NMEA message is preceeded by the ASCII value of the MAC address. This is separated from the NMEA mes-

sage by a comma, and intended to be used as a unique identiﬁer for each message. All messages start with $, have

ﬁelds delimited by commas and end with <CR><LF>. Approved NMEA messages are recognized by the ﬁrst 5 charac-

ters after the $ which deﬁne both the kind of talker providing the information (2 characters, GP in the case of a GPS)

and the type of information (3 characters).

EXAMPLE OUTPUT – no FIX

0050C29BA003,$GPGGA,195713.000,0000.0000,S,00000.0000,W,0,00,00.0,0.0,M,0.0,M,,*5A

0050C29BA003,$GPGLL,0000.0000,S,00000.0000,W,195713.000,V,A*49

0050C29BA003,$GPGSA,A,1,,,,,,,,,,,,,0.0,0.0,0.0*30

0050C29BA003,$GPRMC,195713.000,V,0000.0000,S,00000.0000,W,0.00,0.00,281008,,,A*7D

0050C29BA003,$GPZDA,000000.000,22,08,1999,01,00*57

0050C29BA003,$GPVTG,0.00,T,,,0.00,N,0.00,K,A*70

Note: The GPGSV sentence is not sent out on start up until it contains non-zero data.

EXAMPLE OUTPUT – with a FIX

0050C29BA003,$GPGGA,193927.070,4154.8388,N,08845.3577,W,1,08,00.9,279.1,M,-34.9,M,,*59

0050C29BA003,$GPGLL,4154.8388,N,08845.3577,W,193927.070,A,A*43

0050C29BA003,$GPGSA,A,3,04,08,09,11,17,20,28,32,,,,,1.7,0.9,1.4*32

0050C29BA003,$GPGSV,2,1,08,4,38,201,40,8,13,177,33,9,21,314,31,11,22,051,34*4C

0050C29BA003,$GPGSV,2,2,08,17,73,333,47,20,23,088,37,28,66,115,47,32,16,062,24*7C

0050C29BA003,$GPRMC,193927.070,A,4154.8388,N,08845.3577,W,0.00,134.12,281008,,,A*72

0050C29BA003,$GPZDA,193927.070,28,10,2008,01,00*56

0050C29BA003,$GPVTG,134.12,T,,,0.00,N,0.00,K,A*75

The following Approved NMEA messages are available from the CW85:

Message Section

GPGGA 4.2

GPGLL 4.3

GPGSA 4.4

GPGSV 4.5

GPRMC 4.6

GPZDA 4.7

GPVTG 4.8

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

4.2 GPGGA, GPS ﬁx data.

Time and position, together with GPS ﬁxing related data.

$GPGGA,hhmmss.sss,Latitude,N,Longitude,E,FS,NoSV,HDOP,Altref,M,msl,M,DiffAge,DiffStation*cs

Field Description

$GPGGA NMEA sentence header (Position Data)

hhmmss.sss UTC Time in hours, minutes, seconds. and decimal second format.

Latitude User datum latitude degrees, minutes, decimal minutes format (ddmm.mmmmmm)

N Hemisphere: ‘N’= North, ‘S’ = South

Longitude User datum longitude degrees, minutes, decimal minutes format (dddmm.mmmmmm)

E Longitude Direction: ‘E’= East, ‘W’ = West

FS Fix Status:

0 No ﬁx

1 Standard GPS

2 Differential GPS

NoSv Number of satellites used in the position solution

HDOP 2-D Horizontal Dilution of Precision (0.00 to 99.99)

AltRef Altitude (meters) above user datum ellipsoid.

M Units of height (meters)

msl Mean Sea Level

M Units of Mean Sea Level (meters)

DiffAge Age of differential correction

DiffStation Differential base station ID

cs Message checksum in hexadecimal

4.3 GPGLL, Geographic position, Lat/Lon.

Latitude and longitude, with time of position ﬁx and status.

$GPGLL, Latitude,N,Longitude,E,hhmmss.sss,Status,Mode*cs

Field Description

$GPGLL NMEA sentence header (Position Data)

Latitude User datum latitude degrees, minutes, decimal minutes format (ddmm.mmmmmm)

N Hemisphere: ‘N’= North, ‘S’ = South

Longitude User datum longitude degrees, minutes, decimal minutes format (dddmm.mmmmmm)

E Longitude Direction: ‘E’= East, ‘W’= West

hhmmss.sss UTC Time in hours, minutes, seconds. and decimal second format.

Status Status: V=navigation receiver warning, A=data valid

Mode Mode Indicator:

D = Valid, Differential

A = Valid, Autonomous

E = Invalid, Estimated

N = Invalid, Not Valid

cs Message checksum in hexadecimal

4 NMEA Messages continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

4.4 GPGSA, GPS DOP and Active satellites.

GPS receiver operating mode, satellites used for navigation, and DOP values.

$GPGSA,Smode,FS,sv,sv,sv,sv,,,,,,,,PDOP,HDOP,VDOP*cs

Field Description

$GPGSA NMEA sentence header (Satellite Data)

Smode A= Automatic switching 2D/3D; M=Manually ﬁxed 2D/3D

FS Fix Status:

1 No ﬁx

2 2D GPS Fix

3 3D GPS Fix

sv Satellites in use, null for unused ﬁelds (12 available ﬁelds)

PDOP 3-D Position Dilution of Precision (0.00 to 99.99)

HDOP 2-D Horizontal Dilution of Precision (0.00 to 99.99)

VDOP Vertical Dilution of Precision (00.0 to 99.9).

cs Message checksum in hexadecimal

4.5 GPGSV, GPS Satellites in View.

The number of satellites in view, together with each PRN, elevation and azimuth, and C/No value. Up to four satellite details

are transmitted in one message, with up to three messages used as indicated in the ﬁrst ﬁeld.

$GPGSV, NoMsg, MsgNo, NoSv{,sv,elv,az,cno}{,sv,elv,az,cno}{,sv,elv,az,cno}{,sv,elv,az,cno}*cs

Note: {} designate optional sections that appear only if there is satellite data.

Field Description

$GPGSV NMEA sentence header (Satellite Data)

NoMsg Total number of GPGSV messages being output

MsgNo Number of this message

NoSv Number of satellites in view

sv Satellites ID

elv Satellite elevation angle (degrees)

az Satellite azimuth angle (degrees)

cno Satellite signal/Noise ration (dB/Hz)

cs Message checksum in hexadecimal

4 NMEA Messages continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

4.6 GPRMC, Recommended Minimum data.

The ‘Recommended Minimum’ sentence deﬁned by NMEA for GPS/Transit system data.

$GPRMC,hhmmss.sss,status,latitude,Hemisphere,longitude,E,spd,cmg,ddmmyy,mv,mvd,Mode*cs

Field Description

$GPRMC NMEA sentence header (Recommended Minimum Sentence)

hhmmss.sss UTC Time in hours, minutes, seconds

status Status: V=navigation receiver warning, A=data valid

Latitude User datum latitude degrees, minutes, decimal minutes format (ddmm.mmmmmm)

N Hemisphere: ‘N’= North, ‘S’ = South

Longitude User datum longitude degrees, minutes, decimal minutes format (dddmm.mmmmmm)

E Longitude Direction: ‘E’= East, ‘W’= West

spd Speed over ground (knots)

cmg Course made good

ddmmyy Date in Day, Month, Year format

mv Magnetic variation

mvd Magnetic variation direction

Mode Mode Indicator:

D = Valid, Differential

A = Valid, Autonomous

E = Invalid, Estimated

N = Invalid, Not Valid

cs Message checksum in hexadecimal

4.7 GPZDA UTC Time and Date

This message transfers UTC Time and Date. Since the latency of preparing and transferring the message is variable, and the

time does not refer to a particular position ﬁx, the seconds’ precision is reduced to 2 decimal places.

$GPZDA,hhmmss.sss,dd,mm,yyyy,Int,Unsigned*cs

Field Description

$GPZDA NMEA sentence header (Time and Date)

hhmmss.sss UTC Time in hours, minutes, seconds

dd UTC day

mm UTC month

yyyy UTC year

Int Local zone hours

Unsigned Local zone minutes

cs Message checksum in hexadecimal

4 NMEA Messages continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

4.8 GPVTG, Course over ground and Ground speed.

Velocity is given as Course over Ground (COG) and Ground Speed

$GPVTG,cogt,T,cogm ,M ,knots,N,kph,K,Mode*cs

Field Description

$GPVTG NMEA sentence header (Speed and heading)

cogt Course over ground (true)

T True - ﬁxed ﬁeld

cogm Course over ground (magnetic)

M Magnetic - ﬁxed ﬁeld

knots Speed over ground (knots)

N Knots - ﬁxed ﬁeld

kph Speed over ground (kph)

K Kilometers per hour – ﬁxed ﬁeld

Mode Mode Indicator:

D = Valid, Differential

A = Valid, Autonomous

E = Invalid, Estimated

N = Invalid, Not Valid

cs Message checksum in hexadecimal

4 NMEA Messages continued

5 Lithium Ion Battery and Integrated Charger

The NavTrac unit contains a 900mAH Lithium Ion rechargeable battery and integrated battery charger. To charge the battery, a

user needs to connect a 5V, 500mA capable power supply. The interface provided for charging the battery is a mini-USB con-

nector. There is no serial data connection to the connector, just power and ground. No data is available to or from this port.

The operation range of this battery is -15° to 60°C, while the charging and storage temps are restricted to 0° to 45°C and -20° to

45°C, respectively. This is because, although the battery will operate from 45° to 60°C, long term storage at that temperature can

cause a considerable reduction in battery capacity. Long term operation above 45°C is not recommended for the best battery life.

The unit does contain circuitry for over/under temperature protection of the charging circuitry. The internal temperature protec-

tion will restrict a user from charging a battery below 0°C or above 45°C. This temperature is not measured ambient tempera-

ture, but is the temperature inside the enclosure. It is accurate to within about 3°C. There is about 3 degrees of hysteresis built

into the charging circuitry to help prevent the battery charger from toggling on/off at a rapid rate. If the battery charger detects

the out-of-temperature band, it will ﬂash the battery charging LED at a very rapid rate.

If an error is detected when charging the battery (ie – the battery voltage is too low and possible internal damage is suspected),

the battery charging LED will also ﬂash at a rapid rate. If 2-3 successive attempts to charge the battery fail, the battery should be

replaced. Please contact the factory for details on replacement batteries.

The battery is charged using a constant-current, constant-voltage method. There is a safety timeout period of 2 hours once the

charging is in the constant-voltage mode. This will prevent damage to the battery from leaving power connected for too long.

The LED provided on the front panel for charging status will be lit when battery charging begins and will be constantly on until

the battery is 90% charged. The LED will go off when the battery reaches 90% of its capacity, so it is advised to leave the bat-

tery charging for approximately 30 minutes after the LED goes off. Total battery charging time depends on how depleted the

battery is at the time of charge. If the battery voltage is not so low as to require trickle charging prior to entering constant-cur-

rent mode, the charge cycle is approximately 3 hours. Please note that if the NavTrac unit turns off due to a low battery condi-

tion, the charge indicator is turned off, even if the device is on the charger. This is because the microcontroller is in a special

mode until it is restarted to ensure a proper shutdown in low battery conditions. To re-enable the LED indicator that shows the

battery is charging properly, please do the following: charge the battery for a fewminutes. Remove the charger and cycle the

power. Then re-insert the charger. The LED should function properly after this procedure. It is NOT necessary to follow this

procedure to charge the battery, this is just to re-enable the indicator if the unit goes into its low battery shutdown mode.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

6 Installation Instructions for Initial Setup

Power the NavTrac by turning the switch to the “ON” position (you may need to use a paper clip). Make sure the

WiFi antenna is properly connected and the internal GPS antenna is properly oriented (the NavTrac label should be

facing upwards towards an open view of the sky).

Provide a wireless router or a network access point that is conﬁgured for DHCP. The SSID should be set to

‘CW85_Setup’ and conﬁgured for Channel 6 with Wireless Encryption disabled.

The recommended settings are to have the router at 192.168.1.X (Please do not use 192.168.1.2 - that address

is pre-conﬁgured for the Data Server) and to have it serve addresses on the 255.255.255.0 Subnet. If this is not

the ﬁrst time that you have installed the NavTrac unit and you have altered the SSID and Channel settings in the

device, please use your altered settings.

Provide the host computer(s) IP settings to match those of the NavTrac GSNPRIMARYSNMPMGRIP address (for

SNMP parameter management) and the GSNSENSORSERVERIP address (for GPS data). The default values for

these are 192.168.1.2. Please note that if this computer is connected wirelessly to the network, then it must have

the same SSID/Channel/Encryption settings as above.

Obtain and install a copy of Net-SNMP on the host computer conﬁgured with the GSNPRIMARYSNMPMGRIP as

the IP address (default: 192.168.1.2); see www.net-snmp.org. Use the Net-SNMP commands to read (snmpget)

and write (snmpset) the NavTrac conﬁgurable parameters. See Section 3 – Conﬁguration via SNMP.

If you don’t already have server software that is listening for the incoming data stream, or if you would like an

easy-to-setup program for viewing the NMEA streams/debugging, we suggest using NetCat; see http://netcat.

sourceforge.net/. Netcat can be used to display the ASCII GPS data being sent from the NavTrac. Once the unit has

received an IP address via DHCP, it will begin transmitting UDP packets to 192.168.1.2, port 9999.

Monitoring the GPS data using Netcat:

Netcat is a utility that can be used to read the UDP packets containing the GPS data from the NavTrac. The netcat

utility is freely available at http://netcat.sourceforge.net/.

The NavTrac GPS receiver communicates on port 9999. A simple netcat command line to display the GPS data

would look like:

nc –l –p 9999 –u

An example of the output that would be seen in a NetCat window:

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

OID relative to .1.3.6.1.4.1.28295.99.1.2.1

NAME OID1 Access Type Default Range Comments

GSNSENSORSERVERIP 6.5 R/W IP ADDRESS 192.168.1.2 All possible values IP address of the sensor data server for the CW85

GSNSENSORDATAPORTNUM 9.5 R/W INTEGER 9999 All possible values Port number of the sensor data server for the CW85

NAVTRACLOGSERVERIPADDR 6.3 RW IP ADDRESS 192.168.1.2 All possible IP for the data log. Changes for UDP are automatic,

changes for TCP take effect following a reboot

NAVTRACLOGSERVERPORTNUM 9.3 RW INTEGER 9998 All possible Port for the data log. Changes for UDP are automatic,

changes for TCP take effect following a reboot

NAVTRACLOGSERVERPORTTYPE 7.3 RW INTEGER (UDP) 1-2(TCP is 2) Packet type for the log. Change to this take effect

following a reboot.

NAVTRACDATASERVERPORTTYPE 7.5 RW INTEGER 7(UDP) 1-2(TCP is 2) Packet type for the data. Changes to this take effect

following a reboot

NAVTRACTESTVAR 11.5 RW INTEGER 0 0-1 Writing a 0 or 1 to this will cause a diagnostic sentence

to be sent containing RSSI and battery status.

NAVTRACGPSUPDATERATE 16.5 RW INTEGER 1 0-86399 Data transmission rate in seconds.

NAVTRACFLASHUPDATERATE 19.5 RW INTEGER 1 0-86399 Data save rate as a multiple of the transmission rate.

NAVTRACMSGENABLE 21.5 RW INTEGER 127 Meaningful range The binary representation of this integer number controls

currently 0 - 127 which GPS messages are enabled.

NAVTRACFLASHALWAYSSAVE 27.5 RW INTEGER 0 0-1 Setting this bit enables the Always Save feature. This will

cause data to be saved to ﬂash memory at the conﬁgured

rate EVEN IF the network is detected and the data trans

mits. Note that if this is set to 1, data WILL NOT be sent

out the data log UNTIL given command 28.5.

NAVTRACFLASHDUMP 28.5 RW INTEGER 0 0-1 Datalog Dump command. Writing a 0 or 1 to this bit

provides a one time successful dump of the data log..

Reading this bit returns the last value set. This bit does

not have to be cleared or set speciﬁcally, writing either will

cause the dump operation.

NAVTRACFLASHERASE 29.5 RW INTEGER 0 0-1 Datalog Erase command. Writing a 0 or a 1 to this bit

forces the datalog to erase. Reading this bit returns the last

value set. This bit does not have to be cleared or set

speciﬁcally, writing either will cause the erase operation.

Table 5: NavTrac OID Table

7 Appendix 1

Notes

1. The OID column includes the ending ‘instance identiﬁer’ which must be included in the MIB variable. (‘0’ indicates a scalar object; a non-zero value is an object in a table.

2. These values are assigned via DHCP, which is by default enabled on the device.

3. On V3.0, the 2nd GSNAPSSID was LTRX_IBSS and the 3rd was CW85_Setup. For V3.01, the table shows the correct values.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

OID Relative to .1.3.6.1.4.1.28295.1.

NAME OID1 Access Type Default Range Comments

GSNFWVERSION 1.1.2.0 R INTEGER All possible values Integer returned, convert to hex for ﬁrmware version.

Example: 67108867 = ID: 0x00040003 (Version 4.0 sample)

GSNPLATFORMVERSION 1.1.3.0 R INTEGER All possible values Platform version

GSNRESTOREFACTORYCFG 1.1.4.0 RW INTEGER - PLEASE CONSULT FACTORY PRIOR TO USE. THIS

WILL RESET THE MAC ADDRESS, USE .1.3.5.0 to re-set

the MAC to original state.

GSNLASTERROR 1.1.5.0 RW STRING - Last error occurred

GSNREBOOTNODE 1.1.6.0 RW INTEGER - Restart Network

GSNBATTERYWARNINGLEVEL 1.1.8.0 RW INTEGER 730 - Battery Warning Level - Do Not Chnage

GSNBATTERYSTANDBYLEVEL 1.1.9.0 RW INTEGER 630 - Battery Standby Level - Do Not Change

GSNSCANTYPE 1.2.1.0 RW INTEGER 0(Passive)-1(Active), 1(Active) DO NOT CHANGE FOR NORMAL OPERATION

GSNADHOCSSID 1.2.2.0 RW STRING “<null>” - SSID in ad hoc mode. This is used for a special mode

when you need to create an AdHoc network. Use

GSNAPSSID1-3 for normal operation when wanting to

join an existing AdHoc network. If this is conﬁgured, the

unit will continue to try and create this AdHoc network

rather than continuing to search for the other SSIDs.

GSNADHOCCHANNEL 1.2.3.0 RW INTEGER 6 All supported channels Channel in ad hoc mode

GSNAUTHALGO 1.2.4.0 R INTEGER Auth algo used - Do Not Change

GSNPSKPASSPHRASE 1.2.5.0 W STRING GSDemo123

Read Disabled

GSNOUTERAUTHTYPE 1.2.6.0 R INTEGER - DOES NOT EXIST FOR WPA2_PSK VERSION

GSNINNERAUTHTYPE 1.2.7.0 R INTEGER - DOES NOT EXIST FOR WPA2-PSK VERSION

GSNUSERNAME 1.2.8.0 RW STRING - DOES NOT EXIST FOR WPA2-PSK VERSION

GSNPASSWD 1.2.9.0 RW STRING - DOES NOT EXIST FOR WPA2-PSK VERSION

GSNPSKKEY1 1.2.10.0 W STRING “<null>” 256-bit pseudo-random Pre computed PSK key. This key is derived

Read Disabled sequence. from SSID1 and the pass phrase.

GSNPSKKEY2 1.2.11.0 W STRING “<null>” 256-bit pseudo-random Pre computed PSK key. This key is derived

Read Disabled sequence. from SSID2 and the pass phrase.

GSNPSKKEY3 1.2.12.0 W STRING “<null>” 256-bit pseudo-random Pre computed PSK key. This key is derived

Read Disabled sequence. from SSID3 and the pass phrase.

7 Appendix 1 continued

Table 5: NavTrac OID Table

Notes

1. The OID column includes the ending ‘instance identiﬁer’ which must be included in the MIB variable. (‘0’ indicates a scalar object; a non-zero value is an object in a table.

2. These values are assigned via DHCP, which is by default enabled on the device.

3. On V3.0, the 2nd GSNAPSSID was LTRX_IBSS and the 3rd was CW85_Setup. For V3.01, the table shows the correct values.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

OID Relative to .1.3.6.1.4.1.28295.1.

NAME OID1 Access Type Default Range Comments

GSNIPADDRESS 1.3.1.0 RW IP ADDRESS “<null>” All possible values IP address of the NavTrac

GSNSUBNETADDRESS 1.3.2.0 RW IP ADDRESS 255.255.255.0 All possible values Subnet of NavTrac

GSNGATEWAYIPADDRESS 1.3.3.0 RW IP ADDRESS “<null>” All possible values Gateway IP in Infrastructure mode.

STATICIPENABLED 1.3.4.0 RW INTEGER 0 0-1, 0| Set to 1 to enable Static IP. Set to 0 to enable DHCP.

GSNMACADDRESS 1.3.5.0 RW HEX 0x00504A9BAYYY All possible values Mac address. Read with -O t option

To be used only i8n conjucntion with GSN Restore

Factory CFG

GSNPRIMARYSNMPMGRIP 1.4.3.0 RW IP ADDRESS 192.168.1.2 All possible values, IP of SNMP manager

GSNSECONDARYSNMPMGRIP 1.4.4.0 RW IP ADDRESS 192.168.1.2 All possible values, IP of backup SNMP manager

GSNAPSSID1 1.4.5.1.2.1 R/W STRING “CW85_Setup” All possible values SSID’s of the access point to be used in infrastructure

mode. They will be searched in order.

GSNAPSSID2 1.4.5.1.2.2 R/W STRING “CW85_Setup”3 All possible values

GSNAPSSID3 1.4.5.1.2.3 R/W STRING “LTRX_IBSS”3 All possible values

GSNAPCHANNEL1 1.4.5.1.3.1. R/W INTEGER 6 All possible values Access point channel number for the corresponding SSID.

GSNAPCHANNEL2 1.4.5.1.3.2 R/W INTEGER 6 All possible values

GSNAPCHANNEL3 1.4.5.1.3.3 R/W INTEGER 6 All possible values

GSNAPWEPKEYIDSSID1 1.4.5.1.4.1 RW INTEGER 0 0-3 WEP Key ID

GSNAPWEPKEYIDSSID2 1.4.5.1.4.2 RW INTEGER 0 0-3 WEP Key ID

GSNAPWEPKEYIDSSID3 1.4.5.1.4.3 RW INTEGER 0 0-3 WEP Key ID

GSNAPWEPKEYLENSSID1 1.4.5.1.5.1 RW INTEGER 5 (WEP64) 5 or 13 WEP Key Length

GSNAPWEPKEYLENSSID2 1.4.5.1.5.2 RW INTEGER 5 (WEP64) 5 or 13 WEP Key Length

GSNAPWEPKEYLENSSID3 1.4.5.1.5.3 RW INTEGER 5 (WEP64) 5 or 13 WEP Key Length

GSNAPWEPKEYVALSSID1 1.4.5.1.6.1 RW STRING 0x00, 0x00, 0x00, 10 Bytes or 26 Bytes WEP Key Value

0x00, 0x00 using O-F and 0-9

GSNAPWEPKEYVALSSID2 1.4.5.1.6.2 RW STRING 0x00, 0x00, 0x00, 10 Bytes or 26 Bytes WEP Key Value

0x00, 0x00 using O-F and 0-9

GSNAPWEPKEYVALSSID3 1.4.5.1.6.3 RW STRING 0x00, 0x00, 0x00, 10 Bytes or 26 Bytes WEP Key Value

0x00, 0x00 using O-F and 0-9

GSNAPPSKPASSPHRASESSID1 1.4.5.1.7.1 RW STRING “<null>” - AP Pass Phrase

GSNAPPSKPASSPHRASESSID2 1.4.5.1.7.2 RW STRING “<null>” - AP Pass Phrase

GSNAPPSKPASSPHRASESSID3 1.4.5.1.7.3 RW STRING “<null>” - AP Pass Phrase

7 Appendix 1 continued

Table 5: NavTrac OID Table

Notes

1. The OID column includes the ending ‘instance identiﬁer’ which must be included in the MIB variable. (‘0’ indicates a scalar object; a non-zero value is an object in a table.

2. These values are assigned via DHCP, which is by default enabled on the device.

3. On V3.0, the 2nd GSNAPSSID was LTRX_IBSS and the 3rd was CW85_Setup. For V3.01, the table shows the correct values.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

OID Relative to .1.3.6.1.4.1.28295.1.

NAME OID1 Access Type Default Range Comments

GSNWEPKEYAUTHMODESSID1 1.4.5.1.8.1 RW INTEGER Open Authentication DO NOT CHANGE

GSNWEPKEYAUTHMODESSID2 1.4.5.1.8.2 RW INTEGER Open Authentication DO NOT CHANGE

GSNWEPKEYAUTHMODESSID3 1.4.5.1.8.3 RW INTEGER Open Authentication DO NOT CHANGE

GSNENCRYPTIONMODESSID1 1.4.5.1.9.1 RW INTEGER 219(DBh) All possible Values Encryption control for SSID1. Bitmap of the binary equivalent

controls which encryption methods are allowed.

Note: Bit 3 and 6 are Not Available on WPA2-PSK version.

Not available on version 4.0 and prior.

GSNENCRYPTIONMODESSID2 1.4.5.1.9.2 RW INTEGER 219(DBh) All possible Values Encryption control for SSID2. Bit 0 WEP, Bit 4 WPA2-Personal

Bit 1 WPA-Personal, Bit 5 RESERVED - Set to 0

GSNENCRYPTIONMODESSID3 1.4.5.1.9.3 RW INTEGER 219(DBh) All possible Values Encryption control for SSID3. Bit 2 RESERVED - Set to 0

Bit 6 WPA2-Enterprise (N/A), Bit 3 WPA-Enterprise

Bit 7 Open Encryption (none)

GSNCONFIGCOMPLETE 1.4.6.0 RW INTEGER DO NOT CHANGE

GSNGETCOMMSTRING 1.4.10.0 R STRING GSN_GET DO NOT CHANGE

GSNSETCOMMSTRING 1.4.11.0 R STRING GSN_SET DO NOT CHANGE

GSNTRAPCOMMSTRING 1.4.12.0 R STRING GSN_TRAP DO NOT CHANGE

GSNTRAPCONFIGINTNEWTMR 1.4.13.0 RW HEX 0x0000001400000000 HEX String Wakeup interval for conﬁg traps,

(10 seconds) Note: 1 sec is 0x0000000200000000

Read the HEX value with the -Ot option rather than -Oa.

GSNTRAPLINKUPINTNEWTMR 1.4.14.0 RW HEX 0x0000002800000000 HEX String Wakeup interval for linkup traps.

(20 seconds) Note: 1 sec is 0x0000000200000000

Read the HEX value with the -Ot option rather than -Oa.

GSNFWUPDATEIP 1.6.1.0 RW IPAD-DRESS 192.168.1.2 All possible values

GSNFWUPDATEPORT 1.6.2.0 RW INTEGER 8355 All possible values

GSFWUPGRADENEEDED 1.6.3.0 RW INTEGER 0 DO NOT USE

7 Appendix 1 continued

Table 5: NavTrac OID Table

Notes

1. The OID column includes the ending ‘instance identiﬁer’ which must be included in the MIB variable. (‘0’ indicates a scalar object; a non-zero value is an object in a table.

2. These values are assigned via DHCP, which is by default enabled on the device.

3. On V3.0, the 2nd GSNAPSSID was LTRX_IBSS and the 3rd was CW85_Setup. For V3.01, the table shows the correct values.

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

OID Relative to .1.3.6.1.4.1.28295.1.

NAME OID1 Access Type Default Range Comments

GSNHRDWAREVERSION 2.10.1.0 R INTEGER All possible values, The hardware version is loaded at boot time

not deﬁned by the software from a hardware register.

GSNBOOTROMVERSION 2.10.2.0 R INTEGER All possible values, The boot ROM version is loaded at boot time by the

not deﬁned software from a speciﬁc memory location

GSNWLANFWVERSION 2.10.3.0 R INTEGER - Firmware version

GSNBUPVERSION 2.10.4.0 R INTEGER - BUP version

GSNMODEMBVERSION 2.10.5.0 R INTEGER - Modem B version

GSNSTREAMVERSION 2.10.6.0 R INTEGER - Stream processor version

GSNLASTERRCODE 2.10.7.0 R INTEGER - Last error code

GSNLASTERRPARAM 2.10.8.0 R STRING - Last error parameter

GSNRANDOMVECTOR 2.10.9.0 R STRING - Rx timestamp LSBs for random calculation

GSNRANDOMELEMENTS 2.10.10.0 R INTEGER -

GSNLOWPOWERXTAL 2.10.11.0 R INTEGER -

Table 5: NavTrac OID Table

Notes

1. The OID column includes the ending ‘instance identiﬁer’ which must be included in the MIB variable. (‘0’ indicates a scalar object; a non-zero value is an object in a table.

2. These values are assigned via DHCP, which is by default enabled on the device.

3. On V3.0, the 2nd GSNAPSSID was LTRX_IBSS and the 3rd was CW85_Setup. For V3.01, the table shows the correct values.

7 Appendix 1 continued

NS24-DS CW85 NavTrac Data Sheet Rev P01 Date: 06/10/09

Revision History of Version 3.0

Revision Date Released By Note

P00 01/29/09 Engineering Preliminary Release

Po1 06/10/09 OID Table Revisions

Table 6 Revision History

THE CONNOR WINFIELD CW85VX-XX NavTrac WiFi Enabled GPS User Manual Exhibit D Users Manual per 2 1033 b3

THE CONNOR-WINFIELD CORPORATION NavTrac WiFi Enabled GPS Exhibit D Users Manual per 2 1033 b3

Exhibit D Users Manual per 2 1033 b3

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