Functional Details
Wireless Communication
Rev. 1
SmartHub Underdash OBC Hardware Guide
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NOTE:
INP1 is also used to power on the device from shutdown state. For proper power
management implementation, the input should be connected to the vehicle's ignition
switch.
Open Collector Outputs
The SmartHub Underdash OBC provides four O.C output lines for external peripheral control.
Wireless Communication
Wireless LAN
Overview
The SmartHub Underdash OBC provides a Wireless Local Area Network (IEEE 802.11) module.
Wireless LAN communication is especially suited for high-speed data transfer over the air, when a
Wireless LAN hotspot infrastructure exists. For applications that require large data transactions, Wireless
LAN is the most economical way to implement the solution.
Bluetooth communication is used for Bluetooth-enabled connections with peripherals such as an audio
headset and printer.
Wireless LAN Operation
The WLAN module is compliant with the IEEE 802.11 b/g/n standard and uses DSSS (Direct Sequence
Spread Spectrum), OFDM (Orthogonal Frequency Division Multiplexing), DBPSK, DQPSK, CCK, and QAM
baseband modulation technologies.
In addition to supporting WPA / WPA2, WEP 64-bit, and 128-bit encryption, this module supports the
following:
IEEE’s
802.11i security standard through the implementation of AES (Advanced Encryption Standard), CCMP (Counter
Mode CBC-MAC Protocol), and WEP with TKIP security mechanisms.
IPsec with DES / 3DES / ASE encryption and MD5 / SHA-1 authentication
(the AW-GH381 supports) 802.11e QoS (Quality of Service) for voice applications
Bluetooth 4.1
The SmartHub Underdash OBC provides a Bluetooth 4.1 BLE module.
