Unex RSU-352 Series User manual

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Document Number
Unex-QSG-21-002
Revision
0.8
Authors
Nidor Huang
Quick Start Guide
for
RSU-352 Family
Product Variants
Model
Description
RSU-352
V2X Roadside Unit, 0A1
RSU-352EC
C-V2X Roadside Unit, V2Xcast® - Europe ETSI C-V2X stack, 0A1
RSU-352ED
DSRC-V2X Roadside Unit, V2Xcast® - Europe ETSI ITS-G5 stack, 0A1
RSU-352UC
C-V2X Roadside Unit, V2Xcast® - US C-V2X stack, 0A1
RSU-352UD
DSRC-V2X Roadside Unit, V2Xcast® - US DSRC/WAVE stack, 0A1
Reviewers
Department
Name
Acceptance Date
Note
PD
Nidor Huang
2023/03/24
RD
P.C Kang
2023/03/24
Modification History
Revision
Date
Originator
Comment
0.1
2021/08/23
Nidor Huang
Creating document
0.2
2021/10/12
Nidor Huang
Adding product variants
Adding product characteristics
Adding dimensions and weight
0.3
2021/11/18
Nidor Huang
Updating temperature range
Updating mechanical drawing
0.4
2022/04/15
Nidor Huang
Adding GNSS antenna detection mechanism
Adding V2X antenna detection mechanism
0.5
2022/06/28
Nidor Huang
Adding GORE® Vent
0.6
2022/12/30
Nidor Huang
Updating product variants to 352 series
Updating functional block diagram
0.7
2023/03/03
Nidor Huang
Updating Unex BSP interface settings
Updating mounting bracket instructions

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© 2023 Unex Technology Corporation – Company Confidential
Revision
Date
Originator
Comment
0.8
2023/03/24
Nidor Huang
Updating Unex logo
Adding GNSS reset in Unex BSP interface settings
Adding installation precaution about surge protection

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TABLE OF CONTENTS
1. Objective...................................................................................................5
2. Reference .................................................................................................5
3. Limited Warranty Policy ............................................................................5
4. Safety Guidelines......................................................................................6
5. Product Appearance .................................................................................6
6. Functional Block Diagram.........................................................................8
7. Electrical Characteristics ..........................................................................8
7.1. Absolute Maximum Ratings .................................................................................. 8
7.2. Recommended Operating Conditions................................................................... 9
7.3. Power Consumption.............................................................................................. 9
8. I/O Interfaces ..........................................................................................10
8.1. Status LED .......................................................................................................... 10
8.2. PoE (Power-Over-Ethernet)................................................................................ 10
8.3. 5.9GHz V2X .........................................................................................................11
8.4. GNSS .................................................................................................................. 12
8.4.1. GNSS Antenna Detection ..................................................................... 12
9. Accessories ............................................................................................13
9.1. GORE® Vent........................................................................................................ 13
9.2. Surge Protector ................................................................................................... 14
9.3. Cable Gland ........................................................................................................ 14
9.4. Mounting Bracket ................................................................................................ 15
10. Dimensions and Weight ..........................................................................20
11. Software Settings....................................................................................21
LIST OF FIGURES
Figure 1: RSU-352 series package content .............................................................................. 7
Figure 2: RSU-352 series complete assembly appearance...................................................... 7
Figure 3: Functional block diagram ........................................................................................... 8
Figure 4: Status LED ............................................................................................................... 10
Figure 5: PoE port.................................................................................................................... 10
Figure 6: V2X antenna ports and V2X antennas EX-53...........................................................11
Figure 7: GNSS antenna port and GNSS antenna.................................................................. 12
Figure 8. The GORE® Vent...................................................................................................... 13
Figure 9: PoE surge protector ................................................................................................. 14
Figure 10: Cable gland drawing............................................................................................... 15
Figure 11: RSU-352 mounting bracket assembly (horizontal) steps ....................................... 16

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Figure 12: RSU-352 mounting bracket assembly (vertical) steps ........................................... 17
Figure 13: An example illustration of RSU-352 mounting on a horizontal mast/gantry........... 17
Figure 14: An example illustration of RSU-352 mounting on a vertical mast/post .................. 18
Figure 15: Earth wire connection position (left), earth wire and earth wire screw (right) ........ 19
Figure 16: Mounting bracket dimensions ................................................................................ 20
Figure 17: Mechanical dimensions .......................................................................................... 20
LIST OF TABLES
Table 1. Absolute maximum ratings........................................................................................... 8
Table 2. Recommended operating conditions ........................................................................... 9
Table 3: Power consumption ..................................................................................................... 9
Table 4: LED function .............................................................................................................. 10
Table 5: V2X antenna status.....................................................................................................11
Table 6: GNSS antenna status ................................................................................................ 13
Table 7: Dimensions and weight.............................................................................................. 21
Table 8: Unex BSP interface settings ...................................................................................... 21

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1. Objective
The purpose of this document is to provide necessary information to help setup and
installation of RSU-352 series products. To provide for safe installation and operation of the
equipment, read the safety guidelines at the beginning of this manual and follow the
procedures outlined in the following chapters before connecting power to RSU-352. Keep
this operating manual handy and distribute to all users, technicians and maintenance
personnel for reference.
2. Reference
•Unex RSU-352 datasheet
•61-00021-00_RSU-352_0A1_Drawing
•80-00032_EX-40_Drawing_B
3. Limited Warranty Policy
Unex Technology Corporation selling the product warrants that commencing from the
date of shipment to customer and continuing for a period of twelve (12) months. This limited
warranty extends only to the original customer of the product. 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. Unex’s obligations hereunder are conditioned upon the
return of affected hardware in accordance with Unex's service center's then-current Return
Material Authorization (RMA) procedures.
This warranty does not cover:
•Products found to be defective after the warranty period has expired.
•Products subjected to misuse or abuse, whether by accident or other causes.
Such product conditions will be determined by Unex at its sole and unfettered
discretion.
•Products damaged due to a natural disaster, including but not limited to
lightning, flooding, earthquake, or fire.
•Software products.
•Products dismantled or opened by unauthorized persons. Please contact a
representative of Unex if you need advanced technical support.

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•Products with an altered and/or damaged serial number.
•Loss of data or software.
•Products that have been updated, reworked, or improperly tested by the
Customer, or by a third party at the request of the Customer.
•Customized and original design manufacturer (ODM) products. The warranty
terms for customized and ODM products should be defined in the contract
that governs the project.
4. Safety Guidelines
•Keep working area clean and dry while assembling/installing
•When operating under extreme temperature conditions, environmental control
measures (e.g., heating, cooling) should be considered.
•Always make sure the metal enclosure is connected to a well-grounded metal
structure.
•Make sure every screw has been fastened, including the mounting bracket, pole
clamps and earth wire.
•Make sure every accessory has been fastened, including the V2X antennas, GNSS
antenna, PoE surge protector and cable gland.
5. Product Appearance
An RSU-352 series package contains the following items:
•RSU-352 x1
•V2X antenna x2
•GNSS antenna x1
•PoE surge protector x1
•Cable gland x1
•Mounting bracket set x1
•Earth wire (1 Meter) x1
The photos shown in this document may seem different from actual product. However,
the differences do not affect actual functionalities.

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Figure 1: RSU-352 series package content
Figure 2: RSU-352 series complete assembly appearance

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6. Functional Block Diagram
Figure 3: Functional block diagram
7. Electrical Characteristics
7.1. Absolute Maximum Ratings
Over operating free-air temperature range (unless otherwise noted).
Table 1. Absolute maximum ratings
Parameters
Conditions
Min.
Max.
Unit
Storage Temperature
-
-40
70
°C
Supply Voltage
PoE *1
-
60
V
V2X maximum input level
-
-
10
dBm
GNSS maximum input level
-
-
-10
dBm
Note: *1: Powered by an 802.3af/at PSE
Note: (1) Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute
Maximum Ratings do not imply functional operation of the device at these or any other conditions
beyond those listed under Recommended Operating Conditions. If used outside the Recommended
Operating Conditions but within the Absolute Maximum Ratings, the device may not be fully functional,
and this may affect device reliability, functionality, performance, and shorten the device lifetime.
(2) All voltages are with respect to network GND.

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7.2. Recommended Operating Conditions
Over operating free-air temperature range (unless otherwise noted).
Table 2. Recommended operating conditions
Parameters
Conditions
Min.
Typ.
Max.
Unit
Ta (Ambient operating temperature)
Free-air temp.
-40
25
85 *1
°C
Supply voltage
PoE *2
36
48
57
V
V2X antenna gain
5850-5925MHz
-
-
7.6
dBi
V2X sensitivity
PER ≤10%
-92
-
-
dBm
PER ≤10%,
-40 - +85 °C
-82
-
-
dBm
V2X maximum input level
PER ≤10%
-
-
-30
dBm
V2X adjacent channel rejection
-
13
-
-
dB
V2X non-adjacent channel rejection
-
29
-
-
dB
V2X output power
Spectrum mask
Class C
-
-
20
dBm
GNSS antenna gain
Antenna Gain
-
-
2.4 *3
2.85 *4
dBic
LNA Gain *5
24
27
30
dB
GNSS sensitivity (C/N0)
Acquisition
22
30
45
dB-
Hz
GNSS antenna bias
IANT ≤20mA
3.0
-
3.3
V
GNSS antenna detection current
IANT *6
12
-
58
mA
Note: *1: Excluding V2X antennas. Ta of V2X antenna is -40 ~ +70°C
*2: Powered by an 802.3af/at PSE
*3: Measured at 1575MHz
*4: Measured at 1602MHz
*5: GNSS LNA bias = 3.0V
*6: IANT under Min. = OPEN; IANT over Max. = SHORT; IANT between Min/Max. = NORMAL.
7.3. Power Consumption
RSU-352 is an 802.3af PD (powered device) and should be powered with an
802.3af/802.3at PoE PSE (power sourcing equipment).
Table 3: Power consumption
Condition
Power Consumption
Temp.
Power Source
Voltage (V)
Low *1
Typical *2
High *3
25°C
802.3af PoE PSE
54.3
0.06A
(3.26W)
0.06A
(3.26W)
0.11A
(5.97W)
85°C
802.3af PoE PSE
54.3
0.07A
(3.80W)
0.07A
(3.80W)
0.12A
(6.52W)

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Note: *1: RX only
*2: TX @ 1% duty cycle (CH172, 20dBm, 6Mbps, 750B, 10Hz)
*3: TX @ 100% duty cycle (CH172, 20dBm)
8. I/O Interfaces
8.1. Status LED
Figure 4: Status LED
Table 4: LED function
LED Status
Description
Blinking Green
Start-up
Solid Green
Operational
Amber
FW upgrade
Red
Fault
Note: Please see TABLE 8: UNEX BSP INTERFACE SETTINGS for Status LED BSP settings. The definition of each
status and its related behavior should be implemented by the user.
8.2. PoE (Power-Over-Ethernet)
Figure 5: PoE port
RSU-352 has one Gigabit Ethernet port which supports 10/100/1000Mbps connection.
Status LED
PoE