G506 AP Hardware Installation Guide
About this Guide
This guide provides the information you need to install a GXC G506 Radio Unit (RU). It also includes a general description of the unit, guidelines for using it, and an overview of its capabilities.
In this guide, the GXC G506 may be referred to as an Access Point (AP), Radio Unit (RU), Remote Radio Unit (RRU), or Open Radio Unit (ORU).
General Active RF Installation Instructions
Only experienced installation professionals who are familiar with local building and safety codes, and wherever applicable, are licensed by the appropriate government regulatory authorities should install RF devices and antennas. Failure to do so may void the product warranty and may expose the end user to legal and financial liabilities. The manufacturer and its resellers or distributors are not liable for injury, damage or regulation violations associated with the installation of RF devices or antennas.
Safety Information
WARNING: Read the installation instructions before connecting the system to its power source.
WARNING: Equipment installation must comply with local and national electrical codes.
WARNING: This product relies on the existing building or structure for short-circuit (overcurrent) protection. Ensure that the protective device is rated no greater than 15A.
WARNING: Do not operate this wireless network device near unshielded blasting caps or in an explosive environment unless the device has been modified and qualified for such use.
WARNING: Do not operate this wireless network device near unshielded blasting caps or in an explosive environment unless the device has been modified and qualified for such use.
WARNING: To comply with the United States Federal Communications Commission (FCC) radio frequency (RF) exposure limits, antennas should be located at a minimum of 83 centimeters (33 inches) or more from the body of all persons.
Country Safety Statements
EU: Electromagnetic Fields (Directive 2014/53/EU)
European Council Recommendation 2014/53/EU details basic restrictions and reference levels on human exposure to electromagnetic fields as advised by the ICNIRP. Adherence to these recommended restrictions and reference levels should provide a high level of protection as regards the established health effects that may result from exposure to electromagnetic fields.
CE: RF Exposure Statement
To comply with RF Exposure requirements, this equipment should be installed and operated at a minimum distance of 107 cm between the radiating device and your body.
Precautions for Wireless Devices
When using this device, ensure that the antenna of the device is at least 20 cm away from all people.
WARNING: WARNING: Do not use this device where using wireless devices is prohibited or may cause interference or danger.
If you are using any electrical medical device, contact its manufacturer for the restrictions on the use of this device.
CAUTION: The EM radio waves generated by this device may interfere with the operation of electronic medical devices. Do not take this device into operating rooms, intensive care units (ICUs), or coronary care units (CCUs).
Usage Safety Precautions
Do not use this device where flammables or explosives are stored, for example, in a gas station, oil depot, or chemical plant. Otherwise, explosions or fires may occur. In addition, follow the instructions indicated in text or symbols in area used.
Keep this device far from electronic devices that generate strong magnetic or electric fields, such as microwave ovens, satellite dish antennas, or large appliances.
Do not use any other power adapter except the one that is provided with this device. Use of other adapters could damage this device.
Before connecting and disconnecting cables, ensure that your hands are dry.
To avoid electric shock, damage, and fire resulting from short-circuiting, do not use the product if wet, with wet hands, or while holding or drinking any liquids.
Only insert relevant cables or devices into the ports, do not insert metal or other foreign objects.
Do not place naked flame sources, such as lighted candles, on this device. Keep this device far from sources of heat and fire, such as a heater or a candle.
Damage caused by user misuse or not following instructions are not covered by warranty.
Service Information
Refer all repairs to qualified service personnel. Do not modify any part of this device, as this will void the warranty. Disconnect the power to this product and return it for service if the following conditions apply:
The product does not function after following the operating instructions outlined in this manual.
The product has been dropped or impacted and appears physically damaged. Locate the serial number of the product and record this on your registration card for future reference. Also record the MAC address, located on the product sticker.
UL Outdoor Usage Requirements
WARNING: All interconnecting cables must be routed inside UL listed conduits for outdoor use. This device is designed for outdoor use with an ingress protection code of IP65.
Equipment Class Grounding
WARNING: Class I equipment achieves electric shock protection through basic insulation and protective earth grounding. This requires all conductive parts that could assume a hazardous voltage in the event of basic insulation failure to be connected to a protective earth conductor.
Grounding Requirements for DC Model
Introduction
The GXC G506 is designed for Open 5G Radio Access Network (O-RAN) and is combined with additional O-RAN elements to provide a complete 5G mobile radio communication system provide 5G-NR Sub-6 GHz indoor coverage and optimal 5G network access at throughput speeds of over 1Gbps to satisfy the demands of enterprise, industrial, and commercial campuses. This guide provides information and steps for installing the RU but is intended for installation by pre-trained personnel only.
Onyx Platform Features
The G506 RU is a part of the GXC 5G Onyx Platform, which integrates multiple hardware and software elements to bring a full solution to customers. The Onyx Platform provides an enterprise network based on a Cellular Mesh architecture. This private network platform offers high resiliency, flexible deployments, strong coverage in hard-to-reach areas, and a powerful distributed application platform. Key features of the Onyx Platform:
ORAN Ecosystem, includes Rack-Based CU, DU, and FHMs and both Indoor and Outdoor-rated RUs
On-premises core network
A robust network management platform tied together with a single-pane-of-glass controller presented as a web portal
G506 RU
The G506 RU is designed for open 5G Radio Access Network (O-RAN) and is combined with additional O-RAN elements to provide a complete 5G mobile radio communication system to provide 5G-NR Sub-6 GHz indoor coverage and optimal 5G network access at throughput speeds of over 1Gbps to satisfy the demands of enterprise, industrial, and commercial campuses.
The RU is designed with a flexible vRAN solution that reduces costs and increases connection speeds via split fronthaul network implementation. The RU can be mounted on walls, poles, or ceilings and utilizes internal or optional external (separate model) antennas.
This RU is based on open interfaces as defined by the O-RAN alliance with the fronthaul interface between the RU and the Distributed Unit (DU) that complies with RAN split 7.2a and includes the following signals:
User plane data (UP)
Control plane data (CP)
Synchronization signals (PTP)
Management plane data (MP) This guide provides information and steps for installing the RU but is intended for installation by pre-trained personnel only.
GXC 5G Onyx Platform Architecture
Specifications
Getting Started
Package Contents
G506 RU
GXC G506 RU Package Contents
Remote Radio Unit NOTE: Unit is delivered with connectors covered by protective caps. Remove protective caps before use. NOTE: 1 pc. of SFP+ Transceiver is pre-installed in Remote Radio Unit.
1
LC-to-LC SM Fiber Patch Cable (10m) (packaged separately)
1
SFP+ Transceivers 10G SFP+, 1310 nm, Single-Mode, Duplex LC, Long Range (packaged separately)
2
Chassis Ground Cable 1.5 m, 6 AWG (16 mm2), green/yellow Wire with pre-terminated ring terminals
1
Mounting Bracket Components
Mounting Bracket Kit Package Contents
RU Mounting Plate
1
Wall/Pole Mounting Plate
1
Auxiliary Pole clamp (supports poles with diameter of 60mm (2.36 in.) to 120 mm (4.72 inches))
1
Square neck bolt (M10x200ZA-SS316-GB/T12-2013)
2
Standard nut (M10)
4
Split washer, SW10, SC10, SS304
2
Flat washer
2
Screw Assembly (M6×20-SS-GB/T 9074)
6
Wall anchor bolts (M10x100D-SS-JB/ZQ 4763)
4
DC Power plug kit (2-Pin Power Plug Kit, 26 Amp)
1
Rosenberger RT RFE 2.0 IP67 Connector Enclosure Kit w/ Seals
2
Installation Tools
The following table includes some of the common tools used for this installation. The tools required will vary depending on the type of installation.
Partial Listing of Required Tools
Adjustable Wrench
18 mm Combo Wrench
Torque Wrench: (Adjustable or 18mm)
3/8-Inch Drive Adjustable Torque Wrench
3/8 Inch Drive, 10 mm Hex Socket Bit
Level Bar
Marker
Clean Work Gloves
Other Items (Not Included / User Provided)
The items listed below will be required to complete the installation. Type and quantity may vary depending on the installation and local requirements.
Other Items (Not Included / User Provided)
4.3-10 RF antenna cables (up to 4)
50-ohm feeder
RF antenna
Omni or directional
All-weather electrical tape
Used for weather proofing
All-weather mastic tape
Used for weather proofing
Tie wraps
Used for weather proofing and cable management
Installation Preparation
This document describes the installation process for pole and wall mounting of the GXC G506 5G outdoor RU, and the recommended location and environment required for optimal performance.
WARNING: This and all telecommunications equipment must be installed in locations that are not easily accessible to the general public and do not pose a hazard to nearby personnel or equipment. Installation must be performed only by a licensed and certified professional.
Pre-Installation Notes
In the process of transportation, handling, and installation of the GXC G506 5G outdoor RU the customer or installer must adhere to the following usage requirements:
Before the installation, it is required to transport the G506 RU to the installation site while still in its shipping packaging. Unpacking or transferring the unit in an unprotected manner could lead to damage of the external connectors or enclosure of the G506 RU. External damage like this will not be covered under the product warranty.
Avoid collisions between the G506 RU and other components, parts, doors, walls, shelves, and other objects during transportation, handling, and installation processes.
During transportation, handling, and installation, wear clean protective gloves. It is prohibited to touch parts with bare hands or with dirty gloves. Contamination of the G506 RU’s connectors can lead to deficient performance or product failure.
Before installing the G506 RU, the installer must be familiar with its exterior, ports, indicators, installation scenarios and installation clearance requirements.
Inspect and clean all ports for any debris prior to making any connections using industry approved methods and materials.
Hardware Information
RU Exterior
G506 Dimensions
G506 Ports and LEDs
G506 Ports and LEDs
G506 Ports
Bottom ports
ANT1
RF, 4.3-10, connectors for external antenna
Bottom ports
ANT2
RF, 4.3-10, connectors for external antenna
Bottom ports
ANT3
RF, 4.3-10, connectors for external antenna
Bottom ports
ANT4
RF, 4.3-10, connectors for external antenna
Bottom ports
Pin A(-48VDC) Pin B(PGND)
Power supply socket, for details see RU power cable section
Bottom ports
Local-M
Debug port, RJ45
Bottom ports
OP1
Optical port 0, LC, connected to the DU - Main
Bottom ports
OP2
Optical port 1, LC, connected to the DU - Secondary
Bottom ports
10M/TRIG
10M/TRIG port
G506 LEDs
Run
Green
Steady on
Single board failure.
Run
Green
Steady off
Single board failure.
Run
Green
Slow Blinking
(on for 1s and off for 1s)
Normal operation
Run
Green
Fast Blinking
(on for 0.1s and off for 0.1s)
The single board is starting up and loading the software or upgrading the software.
ALM
Red
Steady on
Major Alarm
ALM
Red
Steady off
No Alarm
ALM
Red
Slow Blinking
(on for 1s and off for 1s)
General alarm, alarm severity is lower than that of normally bright state.
OP1/OP2
Green
Steady on
OP1/OP2 link is normal.
OP1/OP2
Green
Steady off
Abnormal transceiver of optical module
OP1/OP2
Green
Slow Blinking
(on for 1s and off for 1s)
OP1/OP2 out of lock (possible causes: dual-mode clock interlock, OP1 interface rate mismatch, etc.)
OP1/OP2
Green
Slow Blinking
(on for 0.1s and off for 0.1s)
The optical module is not in place or the power supply of the optical module is powered down
ACT
Green
Steady on
Normal
ACT
Green
Steady off
Not activated or carrier not activated
VSWR
Red
Steady on
Serious alarm, VSWR (Voltage Standing Wave Ratio) affecting use
VSWR
Red
Steady off
No VSWR alarm
VSWR
Red
Slow Blinking
(on for 1s and off for 1s)
General VSWR alarm does not affect usage
General Antenna Information
When connecting a 4x4 MIMO outdoor RU to a 4x4 slant- or cross-polarized antenna, installers should follow industry best practices and safety protocols to ensure signal integrity, performance, and proper polarization orientation.
Special Port Mapping
The following table is provided for special cases where a Front Haul Multiplexer (FHM) or a Multi-Port Connect configuration is used.
Special Port Mapping
G506
G506
G506
G506
AP Port Number
1
2
3
4
Antenna polarization (4x4 standard)
H or +45
H or +45
V or -45
V or -45
Antenna polarization (4x4 FHM co-located RU)
V or -45
V or -45
H or +45
H or +45
Multi-Port Connect :
Antenna#1 2x2 dual
H or +45
V or -45
Antenna#2 2x2 dual
H or +45
V or -45
Antenna Polarization and MIMO Fundamentals
Slant/Cross-Polarized Configuration: 4x4 MIMO systems typically use dual-slant polarization (+45° and -45°) or vertical/horizontal cross-polarization to maximize spatial diversity and minimize correlation between antenna elements. This configuration allows the system to transmit and receive independent data streams simultaneously with better performance.
Polarization Matching: Given two communicating RUs their antenna systems should match in polarization configuration for optimum performance. Most 4x4 outdoor slant antennas alternate polarization across ports (e.g., Port 1: +45°, Port 2: -45°, Port 3: +45°, Port 4: -45°).
The following table provides a short summary of differences between slant- (±45) and cross- (H/V) polarization.
Summary of Differences between Slant and Cross Polarization
Angle
+45° and -45°
0° (Horizontal) and 90° (Vertical)
Use Case
Common in LTE/5G
Common in Wi-Fi, some LTE
Port Configuration
Alternating slants
Alternating H/V or H-H/V-V
Physical Mounting
Less sensitive to tilt
More sensitive to rotation
Physical Port Connections
Port Mapping: There is no universal industry-wide convention that dictates which port is labeled H, V, +45°, or –45° in multi‑port (cross‑ or slant‑polarized) MIMO antennas—different manufacturers may label ports according to their own designs and datasheets.
Example Port Mapping: A 4x4 MIMO antenna system may follow this convention:
Ports 1 & 3: +45° slant polarization (or vertical)
Ports 2 & 4: -45° slant polarization (or horizontal)
CAUTION: Always verify the port polarization and orientation of the antenna system you are deploying. Failure to do may result in poor system performance.
In the case of the RU and a KPP-3sx4-65 antenna, the cabling port connections are shown in the following table.
G506 Port to KPP-3sx4-65 Port Mapping
ANT1
First port
+45°
ANT2
Second port
-45°
ANT3
Third port
+45°
ANT4
Fourth port
-45°
A figure of the RU and antenna ports are provided below for the reader’s reference.
G506 and KPP-3SX4-65 Port View
Connector Types: Verify the connector types for outdoor installations prior to installation, ensuring proper impedance and weather proofing in accordance with local requirements and best practices.
CAUTION: Failure to use the correct connector types on both ends of the RF jumper cable will result in damage to the RU, antenna, and RF jumper.
Cable Requirements: Use low-loss coaxial cables (LMR-240 or equivalent) with matched electrical length between all four RF paths. Cable length differences should not exceed ±2cm to maintain phase coherence.
Installation Rules and Best Practices
Labeling:
Label all cables with weather-proof labels.
Place labels such that they will not be covered by final weatherproof boots or tape.
Physical Separation:
Maintain minimum 0.5λ (wavelength) spacing between antenna elements at the operating frequency.
Grounding and Safety:
Install proper RF grounding at both the antenna and RU
Use surge protection on all RF lines
Follow local electrical codes and tower safety regulations
Ensure all connections are weatherproofed to IP67 or better
Orientation and Alignment:
Mount antennas with proper mechanical tilt (typically 0-15° down tilt)
Ensure cross-polarized elements maintain orthogonal relationship
Use precision inclinometers for accurate mechanical alignment
RF Path Management:
Keep all four RF cables equal length (±1% tolerance)
Avoid sharp bends (minimum bend radius = 10x cable diameter)
Route cables to minimize mutual coupling and external interference
Label cables clearly (Port 1-4, +45°/-45°) for maintenance
Testing and Verification:
After installation (if applicable), verify:
VSWR of RF cabling between RU and antenna
Port-to-port isolation
Proper polarization alignment using field strength measurements
Successful MIMO stream establishment through system diagnostics
Regulatory Compliance:
Ensure antenna gain and EIRP levels comply with local regulations
Document installation with photos and measurement reports for warranty, compliance records.
Co-located Dual 4x4 MIMO RUs w/FHM
The following figure, describes a special case of two co-located 5G RUs mounted next to each other (within 10m of one another) fed from an FHM. This polarization-swapped dual AP setup is chosen to enhance signal diversity, reduce co-located interference, and improve MIMO performance in a shared coverage zone. It introduces controlled polarization diversity at the network level, which benefits:
UE connectivity stability
Signal quality across orientations
Interference management
Throughput in edge and overlapping regions
Co-located Dual 4x4 MIMO RUs
The table below tabulates the information from the previous figure.
Typical Antenna Connection Mapping
Antenna Port (left to right)
RU 1 Connections
Antenna Polarization
RU 2 Connections
Antenna Polarization
+45
TX/RX P1
+45° (P1)
TX/RX P1
-45° (P2)
-45
TX/RX P2
-45° (P2)
TX/RX P2
+45° (P1)
+45
TX/RX P3
+45° (P3)
TX/RX P3
-45° (P4)
-45
TX/RX P4
-45° (P4)
TX/RX P4
+45° (P3)
A typical antenna port configuration are shown in the following figure (labeled P1-P4 for reference).
Typical 4x4 MIMI Slant-Polarization Antenna
G506 RU Installation
Instructions and Limitations
The G506 RU can be installed on poles and walls, with details as follows. Other installation locations and structures are feasible. However, if alternate structures are utilized, it is the installer or customer’s responsibility to assess and deem those locations as acceptable and to utilize industry standard construction methods to verify the unit’s stability and orientation corresponds with these specifications.
Installation Overview
The installation specifications described in this document only define the adaptability of the specific installation components and scenarios pictured and described.
CAUTION: Prior to installation, assess the strength and reliability of the structure proposed for the unit installation based on the actual weight of the installed equipment.
Application Limitations
To ensure proper air circulation and effective heat dissipation around the G506 RU, limitations on the unit application environment include, but are not limited to, the following points:
Do not install the G506 RU in indoor or outdoor cabinets that are completely sealed and lack either air exchange or active cooling systems such as heat exchangers, air conditioners, etc., which will ensure the ambient temperature will not exceed the specified temperature range.
Do not install the G506 RU in equipment rooms or network closets that are completely sealed and do not have active cooling systems as detailed above.
CAUTION: Inappropriate application environments can reduce heat dissipation capability of the G506 RU, which may cause the unit to malfunction or fail.
Installation Clearance Requirements
The minimum clearance recommended for the G506 RU installation are shown below. Ensure that the ambient air temperature remains in the specified operational temperature range and these clearance dimensions are maintained to ensure normal operation and allow ample room for maintenance.
Minimum G506 Clearance for a Single Unit
Minimum G506 Clearance between Units
Minimum Vertical Spacing between G506 Units
Recommended G506 Bracket Clearance for Three or More Units (Back Mount)
Recommended G506 Clearance for a Single RU (Side Mount)
Recommended G506 Clearance for Three or More RUs (Side Mount)
Recommended Clearances for Three or More G506 Units in a Side-Mounted Mode on a Wall
CAUTION: To ensure proper air circulation and effective heat dissipation around the RU, do not install it in indoor or outdoor cabinets (such as enclosed camouflage boxes) or in closed rooms without active cooling systems. Such conditions can lead to overheating and may cause the RU to malfunction.
Transportation, Handling, and Installation
Before installation, transport the RU to the site in its packaging. Avoid collisions during transport, handling, and installation. Wear clean gloves and avoid touching connectors or ports with bare hands or dirty gloves.
Common Installation Process
Pre-installation Checklist
Ensure you understand the required safety standards, power requirements, and necessary tools.
Verify that all necessary parts and components are available or identified for procurement.
Site Preparation
Survey the installation site, including support structures.
Collect all required parts and tools.
Implement necessary safety measures at the site.
Mounting the RU
Use the mounting kit to securely attach the RU to a pole, bar, or a stable support frame.
Grounding
Connect the grounding cable from the RU to an appropriate earth conductor.
Antenna Connection
Attach the antenna cables from the RU to a certified external antenna.
Ensure waterproofing of the antenna cable connectors on both the RU and the external antenna.
Fiber Connections
Install the provided fiber cable into the SFP+ port and connect it to a fiber termination box.
Power Supply
Assemble the provided power cable to an appropriate power source, depending on the RU model.
The RUN light will automatically turn on and cycle once powered.
WARNING: This device must be grounded using a green and yellow striped copper wire with either a single core of at least 6 AWG.
RU Installation - Wall
The G506 RU can easily be wall mounted using the materials in the Mounting Kit. Installation scenarios must meet heat-dissipation and waterproofing requirements of the RU. The following instructions are meant to assist the installer in the installation of the G506 onto common wall constructions. Follow all common safety practices and local requirements as required for installation.
G506 Wall Installation
Installation Materials
Verification of Wall Mounting Kit Materials
Check the G506 Mounting Kit package to ensure it contains the components required for wall mounting as shown in the following figure.
Wall Bracket Installation
Components Required for Wall Mounting Kit G506
1
Wall anchor bolts (M10x100D-SS-JB/ZQ 4763)
4
2
Wall/Pole Mounting Plate
1
3
RU Mounting Plate
1
4
M6×20-SS-GB/T 9074, Screw assy.
1
Wall Mount Installation Procedure
Place the installation bracket against the wall, use a level to verify that the installation bracket is placed horizontally, and then mark anchor points with a marker as shown below. The RU bracket should be mounted no less than 1200-1600mm from the surface of its installation location.
Marking Anchor Points
Drill holes at the anchor points, and then insert expansion anchor bolts, as shown below.
WARNING: The installer must determine if the anchor bolts are the correct hardware for the installation. If not, obtain the correct hardware for the installation.
Drilling Holes Inserting Expansion Anchor Bolts
Anchor Bolt Parts
1
M10 x 100 bolt
2
Nut
3
Spring Washer
4
Flat Washer
5
Expansion Sleeve
Install the installation bracket on the expansion anchor bolts, place the flat washers, spring washers, and nuts through the expansion anchor bolts and then use a torque socket to tighten the nuts.
Installation of the Wall Bracket
Use hexagon torque screwdriver to install the main bracket onto the rear of the G506, and tighten the four stainless screws.
Install the G506 onto the main bracket and tighten the M6 screw as shown in the figures below.
Installation of G506 on Wall Bracket
Tighten the M6 Screw onto the Wall Bracket
RU Installation – Pole
The diameter of a pole for installing an ORRU ranges from 60 mm to 120 mm (with a pole wall thickness of 3.5 mm and above), the recommended diameter is 80 mm.
Pole Installation Materials
Verification of Pole Mounting Kit Materials
Check the G506 Mounting Kit package to ensure it contains the components required for pole mounting as shown in the figure and table below.
Pole Mounting Parts for G506
Components Required for Pole Mounting Kit G506
1
M10 Hex Nuts
4 pcs.
2
M10 Split Washers
2 pcs.
3
M10 Flat Washers
2 pcs.
4
Auxiliary Bracket
1 pc.
5
Square neck bolt (M10x200ZA-SS316-GB/T12-2013)
2 pcs
6
Wall/Pole mounting bracket
1 pc.
7
M6×20-SS-GB/T 9074, Screw assy.
1 pc.
8
RU Mounting Bracket
1 pc.
Pole Mount Installation Procedure
The Pole Mounting Kit of the G506 RU supports installation on poles, masts or other sturdy structural infrastructure that has a circumscribed circular diameter in the range of 60 to 120 mm (2.36 to 4.72 inches).
WARNING: Prior to installation, perform a thorough evaluation of the specific installation location and mounting feature. Install the G506 RU onto features or surfaces that are structurally sound and can support the weight of the G506 RU and associated additional equipment; approx. 57 kg (125 lbs.)
G506 Front and Side View
G506 Side and Back View on a Pole
Determine a position for installing the mounting brackets, it is recommended that the RU be installed at a minimum position 1200 mm (47 in) to 1600 mm (63 in) high above the ground.
Install the mounting brackets onto the pole and tighten the nuts on the bolts, as shown in the following figure.
Mounting Bracket Installation
Install the main bracket onto the rear side of ORRU and tighten the M6 screws as shown in the following figure.
Main Bracket Installation onto the Rear of the G506
Install the RU onto the pole and tighten the M6 screw as shown in the following figures.
G506 Installation onto a Pole (Rear Mount)
Tighten the M6 Screw onto the Bracket
Grounding and Lightning Protection
The G506 RU Installation must have Class 1 Equipment Grounding. Prior to applying power to the G506 RU, the unit must be protected against lightning and other incidental electrical shocks by a protective earth ground. The following rules concerning Class 1 Equipment Grounding must be followed.
Use the included pre-terminated 6 AWG yellow-green ground cable assembly, or any equivalent or larger gauge yellow-green cable assembly.
Always terminate the ground cable to a known high quality ground connection, as near as possible to the equipment.
Connect to a reliable outdoor grounding point (earth) using one ground screw.
The connection of the grounding points and ground bar needs to be tight and reliable. Rustproofing the terminals, e.g., with antioxidant coating or grease, is required. To facilitate the chassis ground, a 1.5 m long pre-terminated 6 AWG yellow-green ground cable assembly is provided with the G506 RU. In addition, a 20 mm Long M6 screw assembly is provided to attach the cable to the G506. Attach the screw such that it contacts only the unpainted portion of the chassis hole grounding area.
Provided Ground Cable and Chassis Screw Assembly
Ground Lug Placement Orientation on G506
WARNING: Prior to termination of the Grounding Cable Assembly to the G506 RU, ensure that physical mounting of the unit is complete, stable, can support the weight of the additional cables, power is not applied to the unit, the grounding terminal block or other ground location has 0 Volts present, and that the earth ground connection is low resistance and impedance.
Using a #2 Phillips screwdriver, install the M6 x 20 mm screw assembly as indicated in the figure above.
Ensuring that the Ground Cable Assembly is routed downward or on the shortest path to the grounding terminal strip of the installation location, and that the orientation of the Grounding Ring Terminal is correct on the body of the G506 RU, tighten and torque the M6 x 20 mm screw assembly using an Adjustable Torque Wrench to 5 Nm (3.6 ft-lbs.)
Terminate the other Ring Terminal of the Ground Cable Assembly to the ground terminal block of the installation location or other verified grounding location / feature, torquing the hardware connection per the terminal block or other feature’s manufacturer specifications.
Thoroughly coat both the ground termination on the G506 RU and the installation grounding termination with electrical-rated antioxidant coating or grease.
Cable Connections
The Onyx 5G platform supports RUs in the following configurations. Where the RU in this case is the G506.
RF Cable Connections
The following figure and table refer to the cable connections for the G506.
G506 Connection to the Onyx Fronthaul Connection
RU Cable Connections
Item
Cable
Side A
Side A
Side B
Side B
Item
Cable
Connector Type
Location
Connector Type
Location
1
GND Cable
OT terminal (M6, 6mm2)
RU GND terminal
OT terminal (M6, 6mm2)
GND bar
2
RF jumper
4.3-10 male
RU RF ports
4.3-10 male
Antenna
3
Fronthaul fiber optical cable
LC connector
RU CPRI port
LC connector
Fronthaul port on ES-7 (or FHM)
4
RU power cable
2-way connector (press fit)
Pin A (-48VDC) and Pin B (PGND) ports on the RU
Equipment dependent
External DC power
RF Cable Installation and Weather Proofing
CAUTION: Prior to exposing the G506 to rain, snow or freezing temperatures, weatherproofing of RF Connections is necessary. The G506 Product Warranty will be void if waterproof instructions are not followed by local professional standards and practices. The waterproofing figure shown below is only an example. It is advised to take photos of each step as evidence in case they are requested.
Install the 4.3-10 connector on the RF jumper to the ANTx port of the G506 and use a torque wrench to tighten the connector as shown in the following figure to 5 N-m (44.25 in-lbs).
RF Cable Installation
Install the other end of the RF jumper to the external antenna system.
Use the waterproof tape and PVC insulation tape to waterproof both ends of the connector. Example shown below.
Waterproofing Example
GND Cable Installation
Ensure this is completed as described in the Grounding and Lightning Protection section of this document.
CPRI Cable Installation
Assemble the RFE
Assemble the RFE as shown below.
CPRI Optical Cable RT/RFE Assembly
Insert the optical module into the CPRI/Ethernet port on the RU as shown below.
Optical Module Installation
Power Supply Cable Assembly
The cable polarity should be as follows:
Barrel connections for a -48 VDC source
WARNING: Do not reverse the positive and negative cables. Reverse connection of positive and negative poles may result in equipment malfunction or personal injury. Therefore, check the power cable connection before powering on the RU
Assemble the connector as shown in the following figures.
DC connector
Connector Package Contents
DC Connector Parts
1
Dust cap
2
Coupling shell (female supports 2.5-10mm2)
3
Shell
4
Shielding ring
5
Plastic clip
6
Sealing rubber (cable OD 6-9mm)
7
Sealing rubber (cable OD 9-14mm)
8
Sealing rubber (cable OD 14-18mm)
9
Hold-down ring (Cable OD < 10mm)
10
Compression Nut
Cable Stripping Detail
Determine the length of the power cable for different operations based on the labels, as shown below.
Cable Length Determination
Strip the specified length of the sheath off the power cable, don’t cut the shielding braid, as shown below.
Stripping the Specified Length of Sheath
Remove individual fractured shielding wire, fold back the shielding braid and fix it on the outer jacket with adhesive tape, remove the inner insulation, as shown below.
Stripping the Shielding Wire
Strip the inner jacket of the conductor per dimension shown, as shown below.
Stripping the Sheath off Each Core Wire
Cable Assembly Detail
Slide the components 3/ 4/ 5/ 6 (or 7 / 8) /9 /10 onto the cable as shown below.
Components Stacking Order
Use a Torx screwdriver T15 to terminate the two conductors in the corresponding contacts A / B in the front plug assembly, as shown below.
Wire Assembly
Mate the dust cap (1) onto the coupling shell (2) and assemble the shell (3) into position using a torque wrench as shown below.
Shielding Ring Assembly
Spread open the shielding braid and slide down the shielding ring (4) into position so that the entire shielding braid is equally groomed around it. Between the shielding ring and the inside surface of the shell (3), extra length of the shielding braid should be folded and trimmed around and into the inner diameter of the shielding ring, as shown below.
Shielding Braid Detail
Press the Plastic clip (5) down into a tightly seated position into the shell (3). Assemble the nut (10) onto the shell (3) and tighten using an M25 and M30 spanner as shown in the figures below.
Nut to Shell Assembly
The assembled connector is shown in the figure below.
Assembled connector
RU Power Cable Installation
Install the assembled power supply cable into the connector on the RU and rotate the plug to lock it into place as shown in the following figure.
RU Power Supply Cable Installation
Post Installation Steps
After installing the RU, connect it to the Core/gNB server or FHM. Your configuration will be dependent on the use of an ONYX-FHM-001 (Fronthaul Multiplexer) in your network configuration.
Single RU: Connect the RU directly to the Core/gNB server to s0f3 as shown below for a single RU.
Onboard the RU. Refer to the Onyx Portal Operations Guide (Manage Equipment > Manage APs > Add APs > Add APs to 5G Networks).
Multiple RU: Connect the RUs to the installed Onyx-FHM-001 starting with port 0. Ensure all RUs are of the same model.
To edit the FHM. Refer to the Onyx Portal Operations Guide (Manage Equipment > Manage FHM > Edit FHM
RU to Core/gNB or FHM
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