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Product Variants
Model
OBU-352
V2X On-Board Unit, 0A1
OBU-352EC
C-V2X On-Board Unit, V2Xcast
OBU-352ED
DSRC-V2X On-Board Unit, V2Xcast
OBU-352UC
C-V2X On-Board Unit, V2Xcast
OBU-352UD
DSRC-V2X On-Board Unit, V2Xcast
EVK-352
V2X Starter Kit, 0A1
EVK-352EC
C-V2X Starter Kit, V2Xcast
EVK-352ED
DSRC-V2X Starter Kit, V2Xcast
EVK-352UC
C-V2X Starter Kit, V2Xcast
EVK-352UD
DSRC-V2X Starter Kit, V2Xcast
Reviewers
Department
Name
PD
Nidor Huang
RD
P.C Kang
Modification History
Revision
Date
0.1
2021/08/23
0.2
2021/10/13
0.3
2022/04/15
A printed version of this document is an uncontrolled copy
© 2023 Unex Technology Corporation – Company Confidential
Quick Start Guide
for
OBU-352 Family
Description
®
®
®
- Europe ETSI C-V2X stack, 0A1
®
®
- US C-V2X stack, 0A1
®
Acceptance Date
2023/05/10
2023/05/10
Originator
Nidor Huang
Creating document
Adding product variants
Adding product characteristics
Nidor Huang
Adding dimensions and weight
Adding EVK package content
Nidor Huang
Adding GNSS antenna detection mechanism
Doc. No: Unex-QSG-21-001
Document Number
Revision
Authors
- Europe ETSI C-V2X stack, 0A1
- Europe ETSI ITS-G5 stack, 0A1
®
- US C-V2X stack, 0A1
®
- US DSRC/WAVE stack, 0A1
- Europe ETSI ITS-G5 stack, 0A1
- US DSRC/WAVE stack, 0A1
Note
Comment
Unex-QSG-21-001
0.8
Nidor Huang
1/30
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Summary of Contents for Unex OBU-352EC
- Page 1 Adding product characteristics 2021/10/13 Nidor Huang Adding dimensions and weight Adding EVK package content 2022/04/15 Nidor Huang Adding GNSS antenna detection mechanism 1/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential...
- Page 2 Adding V2X antenna detection function Updating maximum supply voltage Updating Unex logo 2023/03/08 Nidor Huang Adding GNSS reset in Unex BSP interface settings 2023/05/10 Nidor Huang Changing Ethernet over USB protocol to RNDIS 2/30 A printed version of this document is an uncontrolled copy...
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Page 3: Table Of Contents
Figure 7: Ethernet port ......................14 Figure 8: I/O port (J8) ......................14 Figure 9: I/O port cable connector ................... 15 3/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... - Page 4 Table 14: SAR ADC functions ....................22 Table 15: SAR ADC performance .................... 23 Table 16: SW2 and SW3 functions ..................23 4/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential...
- Page 5 Table 21: USB1 pinout (CN2) ....................27 Table 22: GPIO pinout (J1) ...................... 27 Table 23: Dimensions and weight .................... 29 Table 24: Unex BSP interface settings ..................30 5/30 A printed version of this document is an uncontrolled copy...
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Page 6: Objective
Customer's sole and exclusive remedy and the entire liability of Unex under this limited warranty will be, at Unex's option, return for repair to Unex's repair center with freight and insurance prepaid or shipment of a replacement within the warranty period or a refund of the purchase price if the hardware is returned to Unex. -
Page 7: Safety Guidelines
• The photos shown in this document may seem different from actual product. However, the differences do not affect actual functionalities. 7/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 8: Figure 1: Obu-352 Series Package Content
Doc. No: Unex-QSG-21-001 Figure 1: OBU-352 series package content Figure 2: EVK-352 series package content 8/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 9: Functional Block Diagram
Doc. No: Unex-QSG-21-001 Figure 3: OBU-352 series complete assembly appearance 6. Functional Block Diagram Figure 4: Functional block diagram 9/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 10: Electrical Characteristics
Conditions Min. Typ. Max. Unit Ta (Ambient operating temperature) Free-air temp. °C USB0 Vbus Supply voltage POWER USB1_Vbus output Vbus voltage 10/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... - Page 11 *5: RX (J8.3) / EXT_GNSS_TX (J8.14) *6: I under Min. = OPEN; I over Max. = SHORT; I between Min/Max. = NORMAL. 11/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential...
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Page 12: Power Consumption
*3: TX @ 100% duty cycle (CH172, 20dBm) 8. I/O Interfaces 8.1. OBU-352 8.1.1. External Interfaces 8.1.1.1. LED Figure 5: LED 12/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 13: Figure 6: Usb0 (Cn2)
The power input/output is determined by the hardware design of the OTG cable. However, setting of the USB mode and detection of external device should be implemented by the user. 13/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 14: Figure 7: Ethernet Port
9: I/O ). A cable IGURE PORT CABLE CONNECTOR assembly with 24AWG wire should be used to connect to vehicular wire harnesses. 14/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 15: Figure 9: I/O Port Cable Connector
GPIO2 Female Connector Female Connector Female Terminal JST 20CPT-B-2A (Rear) JST 20CPT-B-2A (Front) JST SCPT-A021GF-0.5 Figure 9: I/O port cable connector 15/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 16: Figure 10: V2X Antenna Ports
FAKRA-C. User should connect a GNSS antenna to this port with a FAKRA-C plug cable. A FAKRA-C active GNSS antenna is provided in OBU-352 package. 16/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 17: Table 10: Gnss Antenna Status
NMEA Sentence Status Consumption (mA) OPEN < 12 $PSTMANTENNASTATUS,1*4C NORMAL between 12- 58 $PSTMANTENNASTATUS,0*4D SHORT > 58 Turned OFF once triggered $PSTMANTENNASTATUS,2*4F 17/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 18: Internal Interfaces
GNSS 1 pulse per second input 0=Tamper tripped, 1=Normal operation. J6.51 TAMPER# SW3.2 ON: J6.51 close to OBU-352 tamper SW3.2 OFF: J6.51 open from OBU-352 tamper 18/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 19: Table 12: Mini Pcie Pinout (J6, Row 1)
The SIM slot has a metal flip lid. It is necessary to slide the lid into “Unlock” position before open it. 19/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 20: Figure 13: Sim Slot (J7)
Doc. No: Unex-QSG-21-001 Lock Unlock Open Figure 13: SIM slot (J7) 20/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 21: Figure 14: Tamper Input (J5)
The tamper detection mechanism is part of the FIPS 140-2 Level 3 security 21/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 22: Figure 15: Sar Adc Input (J4)
Reserved. Leave open if not used. J4.4 Reserved Reserved. Leave open if not used. J4.5 Reserved Reserved. Leave open if not used. J4.6 Ground 22/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 23: Figure 16: Dip Switches. Sw3 (Left), Sw2 (Right)
ON: Trigger when tamper SW close to GND (1K PU) SW3.2 TRIGGER_SW Trigger mode OFF: Trigger when tamper SW open from 3V3 (30K PD) 23/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 24: I/O Conversion Board (Evk-352 Series Only)
Ground CN4.6 Not Connected CN4.7 Not Connected CN4.8 Not Connected CN4.9 Not Connected Console is a RS232 DCE (Data Communication Equipment). 24/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 25: Ext Gnss
Ext GNSS is a RS232 DTE (Data Terminal Equipment). If an external GNSS source can output NMEA sentences over RS232, this is to port to connect. Please note that software integration of GNSS protocol will be needed for proper functionality. Contact Unex representative for more detail. -
Page 26: Can1
If CAN1 termination jumper caps (JP3/JP4) are closed, a pair of 60 Ω termination resistors (total 120 Ω) are added to CAN1 port. If jumper caps are removed, the termination resistors are disconnected. 26/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 27: Usb1
Figure 25: GPIO headers (J1) Table 22: GPIO pinout (J1) Symbol Level (V) Description J1.1 GPIO1 GPIO1 J1.2 Ground J1.3 GPIO2 GPIO2 J1.4 Ground 27/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 28: Dc Power Jack
Input power range is DC 6-48V. Suggested power is 12W or higher. 8.2.8. Reset Button Figure 27: Reset button Pushing the reset button can reboot Linux system. 28/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 29: Dimensions And Weight
Figure 29: Mechanical dimensions - FRONT Table 23: Dimensions and weight Model Length (mm) Width (mm) Height (mm) Weight (g) 95.0 103.0 31.2 152.6 OBU-352 29/30 A printed version of this document is an uncontrolled copy © 2023 Unex Technology Corporation – Company Confidential... -
Page 30: Software Settings
Doc. No: Unex-QSG-21-001 10. Software Settings The following BSP settings are applicable for Unex software package only. Table 24: Unex BSP interface settings Function Description Console RS232, 115200bps, 8N1, ttyAMA2 EXT GNSS RS232, 230400bps, 8N1, ttyAMA1 (GPIO100=0) GNSS NMEA UART1, 230400bps, 8N1, ttyAMA1 (GPIO100=1) GNSS Debug (Opt.)
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