Unex RSU-300 Series User manual

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Document Number
Unex-QSG-21-002
Revision
0.2
Authors
Nidor Huang
Quick Start Guide
for
RSU-300 Family
Product Variants
Model
Description
RSU-301
V2X Roadside Unit, 0A1/0A2/0A3
RSU-301E
V2X Roadside Unit, V2Xcast® - ITS-G5 stack, 0A1/0A2/0A3
RSU-301U
V2X Roadside Unit, V2Xcast® - WAVE stack, 0A1/0A2/0A3
RSU-301E(v2)
V2X Roadside Unit, V2Xcast® - ITS-G5 stack, 0A1/0A2
RSU-301U(v2)
V2X Roadside Unit, V2Xcast® - WAVE stack, 0A1/0A2
RSU-351
V2X Roadside Unit, 0A1/0A2
RSU-351E
V2X Roadside Unit, V2Xcast® - C-V2X stack, Europe, 0A1/0A2
RSU-351U
V2X Roadside Unit, V2Xcast® - C-V2X stack, USA, 0A1/0A2
Reviewers
Department
Name
Acceptance Date
Note
PD
Nidor Huang
2021/10/06
RD
JY Ou
2021/10/12
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

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TABLE OF CONTENTS
1. Objective...................................................................................................4
2. Reference .................................................................................................4
3. Limited Warranty Policy ............................................................................4
4. Safety Guidelines......................................................................................5
5. Product Appearance .................................................................................5
6. Functional Block Diagram.........................................................................7
7. Electrical Characteristics ..........................................................................7
7.1. Absolute Maximum Ratings .................................................................................. 7
7.2. Recommended Operating Conditions ................................................................... 8
7.3. Power Consumption.............................................................................................. 8
8. I/O Interfaces ............................................................................................9
8.1. Status LED ............................................................................................................ 9
8.2. PoE (Power-Over-Ethernet) .................................................................................. 9
8.3. 5.9GHz V2X ........................................................................................................ 10
8.4. GNSS .................................................................................................................. 10
9. Accessories ............................................................................................11
9.1. Surge Protector ....................................................................................................11
9.2. Cable Gland .........................................................................................................11
9.3. Mounting Bracket ................................................................................................ 12
10. Dimensions and Weight ..........................................................................16
11. Software Settings....................................................................................17
LIST OF FIGURES
Figure 1: RSU-301(v2)/RSU-351 series package content ........................................................ 6
Figure 2: RSU-301(v2)/RSU-351 series complete assembly appearance................................ 6
Figure 3: Functional block diagram ........................................................................................... 7
Figure 4: Status LED ................................................................................................................. 9
Figure 5: PoE port...................................................................................................................... 9
Figure 6: V2X antenna ports and V2X antennas..................................................................... 10
Figure 7: GNSS antenna port and GNSS antenna.................................................................. 10
Figure 8: PoE surge protector ..................................................................................................11
Figure 9: Cable gland drawing................................................................................................. 12
Figure 10: RSU-301(v2)/RSU-351 mounting bracket assembly (horizontal) steps................. 13
Figure 11: RSU-301(v2)/RSU-351 mounting bracket assembly (vertical) steps ..................... 13
Figure 12: An example illustration of RSU-301(v2)/RSU-351 mounting on a horizontal
mast/gantry....................................................................................................................... 14

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Figure 13: An example illustration of RSU-301(v2)/RSU-351 mounting on a vertical mast/post
.......................................................................................................................................... 14
Figure 14: Earth wire connection position (left), earth wire and earth wire screw (right) ........ 15
Figure 15: Mounting bracket dimensions ................................................................................ 16
Figure 16: Mechanical dimensions .......................................................................................... 16
LIST OF TABLES
Table 1. Absolute maximum ratings........................................................................................... 7
Table 2. Recommended operating conditions ........................................................................... 8
Table 3: Power consumption ..................................................................................................... 8
Table 4: LED function ................................................................................................................ 9
Table 5: Dimensions and weight.............................................................................................. 17
Table 6: Unex BSP interface settings ...................................................................................... 17

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1. Objective
The purpose of this document is to provide necessary information to help setup and
installation of RSU-301(v2)/RSU-351 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-
301(v2)/RSU-351. Keep this operating manual handy and distribute to all users, technicians
and maintenance personnel for reference.
2. Reference
•Unex RSU-301(v2)/RSU-351 datasheet
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.
•Products with an altered and/or damaged serial number.
•Loss of data or software.

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•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-301(v2)/RSU-351 series package contains the following items:
•RSU-301(v2)/RSU-351 x1
•V2X antenna x2
•GNSS antenna x1
•PoE surge protector x1
•Cable gland x1
•Mounting bracket set x1
•Earth wire 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-301(v2)/RSU-351 series package content
Figure 2: RSU-301(v2)/RSU-351 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
70
°C
Supply voltage
PoE *1
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 *2
2.85 *3
dBic
LNA Gain *4
24
27
30
dB
GNSS sensitivity
Tracking
-162
-
-125
dBm
GNSS LNA bias
ILNA ≤20mA
3.0
-
3.3
V
Note: *1: Powered by an 802.3af/at PSE
*2: Measured at 1575MHz
*3: Measured at 1602MHz
*4: LNA fed with 3.0V
7.3. Power Consumption
RSU-301(v2)/RSU-351 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)
Note: *1: RX only
*2: TX @ 1% duty cycle (CH172, 20dBm, 6Mbps, 750B, 10Hz)
*3: TX @ 100% duty cycle (CH172, 20dBm)

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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 refer software instructions for implementation
8.2. PoE (Power-Over-Ethernet)
Figure 5: PoE port
RSU-301(v2)/RSU-351 has one Gigabit Ethernet port which supports
10/100/1000Mbps connection. It is suggested to use an Ethernet cable compatible with
Cat5e or above standard for best connection speed.
This Ethernet port also acts as a 12W PoE (802.3af) PD (powered device). It supports
both mode A and mode B PSE (power sourcing equipment). Passive PoE is not supported.
Status LED
PoE

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8.3. 5.9GHz V2X
Figure 6: V2X antenna ports and V2X antennas
RSU-301(v2)/RSU-351 provides two 5.9GHz V2X antenna connectors. Receptacle
connectors are Type-N. These V2X ports are surge protected (5KA min with 8/20 μs, 10KV
min with 1.2/50 μs). A pair of Type-N V2X antennas (7.6dBi omni-directional) are also
provided in RSU-301(v2)/RSU-351 package.
8.4. GNSS
Figure 7: GNSS antenna port and GNSS antenna
V2X0 ANT
Type N
V2X1 ANT
Type N
GNSS ANT
Type N