Digi WVA Wireless WiFi Vehicle Adapter User Manual Hardware
Digi International Inc Wireless WiFi Vehicle Adapter Hardware
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Wireless Vehicle Bus Adapter Application Developer's Guide
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Hardware
Specifications | Connector Pinout | Wiring Harness | Regulatory Information & Certifications
Hardware Specifications
Specification Value
Power requirements
Power input/Power supply 9-36 VDC; +12 V battery systems
Power consumption
Idle: 1.5W
Max: 2.5W
Sleep: 30mW
Temperature
Functional operating
temperature*
-40° C to +70° C* (-40° F to +158° F)
*70° C operating temperature achieved with 0.85 meters/sec of airflow.
Touch temperature
safety limits
-40° C to + 55° C (-40° F to 131° F)
The upper temperature safety limit of + 55° C, per Standard UL/IEC 60950-1, is less than the upper limit of +70° C for functional
operating temperature owing to the limitations on physical contact with product.
Storage temperature -40° C to +85° C (-40° F to +185° F)
Hardware Interfaces
Vehicle bus J1939 - Two
J1708 - One
Diagnostic port connector 9-pin Deutsch connector; see pinout here.
Internal sensors
Vibration: Wakes the WVA from sleep mode; feature configured through the Power Management - Wake on Movement
configuration settings.
Voltage: Wakes the WVA from sleep mode; feature onfigured through the Power Management - Wake on Alternator
configuration settings.
Vehicle voltage
measurement Maximum range of +33V
Button
Performs several functions:
Resets the WVA to factory defaults: press and hold for ten seconds.
Silences the buzzer/audible alarm; only applicable when the alarm is enabled through applications.
Wakes the WVA from sleeping; must be configured through the WVA's Power Management configuration settings.
Buzzer/audible alarm Application-defined buzzer capability. The buzzer is controlled programmatically through the web services resource hw/buzzer.
LEDs
Two LEDs:
- Power: Green when power is applied to unit.
- Application-defined: Amber when enabled. The use of this LED is controlled through the application programming interface (API).
Hardware
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LEDs are controlled programmatically through two web services resources: hw/leds and hw/leds/led_name
USB High Speed Type A; Host Mode Only. 0.5A current available at port
Wi-Fi
802.11 b/g/n internet speeds
Data rate Up to 72.2 Mbps
Transmit power +12 dBm typical (varies by mode and channel)
Receiver sensitivity
Varies by data rate:
1Mb: -91dBm
11Mb: -89dBm
54Mb: -75dBm
65Mb: -71dBm
Security WPA2
Firmware & software
interfaces
Configuration and
management interface Web user interface
Programming interface RESTful web services interface
Security
WPA2 with pre-shared key (PSK)
HTTP authentication
See also Security in the WVA
Memory Total memory 128 MB flash, 64 MB RAM
Available user space 20 MB flash
Real time clock Real time clock for setting system time; interface to setting system time is the web services resource /ws/hw/time.
Dimensions
Height 2.33 in (5.92 cm)
Diameter 2.15 in (5.46 cm)
Height, installed 2.57 in (6.53 cm)
Weight 0.26 lb (0.12 kg)
Environmental/regulatory
approvals
Automotive ISO-10452, ISO-10605, SAE 1455, ISO 7637-2, -3
International EMC
(Electromagnetic
Emissions/Immunity/Safety)
standards
Emissions: CE, FCC PART 15 (Class B), CISPR25, EN5502
Immunity: EN55024, EN301, SAE J1113
Safety: UL 60950-1, EN 60950-1, CSA 22.2 No. 60950
Environmental Automotive Environmental tests per SAE 1455.
Resistant to the following chemicals, per SAE J1455 Section 4.4: gasoline, fuel additives, diesel fuel.
NEMA IP54
Connector Pinout
The connector on the WVA is a 9-pin Deutsch connector with the following pin orientation and pinout.
Hardware
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WVA 9-pin connector pinout
Pin Signal
APower (-)
BPower (+)
CCAN J1939 HI (+)
DCAN J1939 LO (+)
ECAN J1939 Shield
FJ1708 (+)
GJ1708 (-)
HCAN J1939 HI (+)
JCAN J1939 LO (+)
Notes:
1. Reference Vehicle Wiring Schematics for additional wiring information: wire color, locations.
2. Consult vehicle manufacturer for recommended connection methods.
Available Interfaces On the Wiring Harness
The wiring harness for the WVA is available for purchase separately; Digi part number is 76000931. The wiring harness uses a 9-pin
Deutsch connector.
Hardware
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The following interfaces are available on the wiring harness. Labels on the wires indicate their interface function.
Power
Ground and 12V power for powering the WVA
Ground and 12V power for powering a CAN simulator
J1939+ and J1939-
A second J1939+ and J1939-
J1708+ and J1708-
Regulatory Information and Certifications
RF Exposure Guidance
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be
installed and operated with a minimum distance of 20 cm between the radiator and persons. This transmitter must not be co-located
or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures.
FCC Part 15 Class B Certifications and Regulatory Information (USA Only)
All Wireless Vehicle Bus Adapter products comply with the FCC Part 15 Class B standards cited in this section:
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Radio Frequency Interface (RFI) (FCC 15.105)
This device has been tested and found to comply with the limits for Class B digital devices pursuant to Part 15 Subpart B, of the FCC
rules. These limits are designed to provide reasonable protection against harmful interference in a residential environment. This
equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Labeling Requirements (FCC 15.19)
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired
operation.
If the FCC ID is not visible when installed inside another device, then the outside of the device into which the module is installed must
also display a label referring to the enclosed module FCC ID.
Modifications (FCC 15.21)
Changes or modifications to this equipment not expressly approved by Digi may void the user’s authority to operate this equipment.
Industry Canada (IC) Certifications
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause
undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en
compromettre le fonctionnement.
Safety Statements
5.10 Ignition of Flammable Atmospheres
Warnings for Use of Wireless Devices
Observe all warning notices regarding use of wireless devices.
Potentially Hazardous Atmospheres
Observe restrictions on the use of radio devices in fuel depots, chemical plants, etc. and areas where the air contains chemicals or
particles, such as grain, dust, or metal powders, and any other area where you would normally be advised to turn off your vehicle
engine.
Safety in Hospitals
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Wireless devices transmit radio frequency energy and may affect medical electrical equipment. Switch off wireless devices wherever
requested to do so in hospitals, clinics, or healthcare facilities. These requests are designed to prevent possible interference with
sensitive medical equipment.
Pacemakers
Pacemaker manufacturers recommended that a minimum of 15cm (6 inches) be maintained between a handheld wireless device and
a pacemaker to avoid potential interference with the pacemaker. These recommendations are consistent with independent research
and recommendations by Wireless Technology Research.
Persons with Pacemakers:
Should ALWAYS keep the device more than 15cm (6 inches) from their pacemaker when turned ON.
Should not carry the device in a breast pocket.
If you have any reason to suspect that the interference is taking place, turn OFF your
device.
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