B&R 0AC808.9 8-Port Industrial Layer 2 Hub

Nombre completo del modelo & Code Definition

Complete order model: 0AC808.9-1 (abbreviated as OAC808.9 in the industry)

1. 0C.A.: B&R automation infrastructure / network component series
2. 808: 8-port industrial Ethernet Hub (Layer 2 hub)
3. .9: Hardware version identifier
4. -1: Standard version with 24VDC power supply

Número de pieza original de fábrica: 306071

Place of origin: Austria

2. Core Network Specifications (Layer 2 Hub, Conmutador no administrado)

Indicadores LED de estado (Independent for Each Channel)

1. Orange RX: Data transmit/receive activity indicator
2. Green/Red L/C: Green = Link normal; Red = Collision detected
3. Orange OK: Global 24V power supply status indicator
4. Electrical Power Specifications
5. Voltaje de suministro: 18~30 VCC (standard industrial 24 VCC)
6. Max Operating Current: 150 mamá
7. Total Power Consumption: ≤ 3 W.
8. Power Protection: Built-in reverse polarity protection diode; no overvoltage protection. A 24V stabilized power supply must be deployed upstream.
9. Cableado de energía: Terminal block 0TB704.9 must be purchased separately (not included as standard; mandatory accessory)
10. Mecánico & Dimensiones de montaje

Ancho 115 mm × Height 43 milímetros (51 mm with DIN rail mounted) × Depth 86 milímetros

Método de montaje: Estándar 35 mm montaje en carril DIN (DIN rail clip pre-installed); supports horizontal & vertical cabinet installation

Clase de protección: IP20 (indoor cabinet use only)

Temperatura ambiente & Humedad:

Temperatura de funcionamiento: -25℃ ~ +60℃ (valid for both horizontal and vertical mounting)

Almacenamiento & Temperatura de transporte: -40℃ ~ +85℃

Humedad: 5%~95% RH, sin condensación

5. Certificaciones & Industrial Compatibility

Certificaciones de cumplimiento: CE, cULus E115267, ABS marine certification

Antiinterferencia: Cumple con los estándares industriales EMC, suitable for control cabinets of machine tools, logística, packaging and new energy equipment

Alojamiento: Metal enclosure with excellent electromagnetic shielding performance

6. Estándar & Mandatory Optional Accessories
7. Included upon delivery: DIN rail mounting clip, hub main unit
8. Must be ordered separately (not supplied with main unit):

0TB704.9: 4-pin power terminal block (24V+, 0V, reserved functional pins)

3. Accesorios opcionales: Shielded RJ45 industrial Ethernet cables, EMC grounding terminals
4. Principio de funcionamiento & Networking Features
5. Working Principle of Layer 2 Shared Hub

Todo 8 ports share one single broadcast domain. Data transmitted or received via any port will be broadcast and forwarded to the other 7 puertos. It has no VLAN, port isolation or routing functions and belongs to shared-bandwidth equipment.

2. POWERLINK Real-Time Bus Compatibility

Ultra-low forwarding latency, specially designed for B&R POWERLINK motion control bus to expand real-time nodes including PLCs, servo drives and remote I/O stations.

3. Advantages of Electrical Isolation

Each port is isolated by built-in transformers to avoid bus interference and port burnout caused by ground potential differences between different devices.

8. Escenarios de aplicación típicos
9. Extension of slave stations for B&R POWERLINK motion control systems (networking of multiple servo drives / remote I/O modules)
10. Ethernet distribution inside control cabinets for machine tools, injection molding machines and packaging machinery
11. Simple network expansion for distributed PLCs, HMI touch panels and machine vision cameras on production lines
12. Aggregation of multi-node Ethernet signals for marine and vehicle-mounted industrial control equipment
13. Low-cost real-time bus signal distribution for small & medium-sized automated production lines
14. Reemplazo & Upgrade Options within the Same Series
15. No derivative models with identical specifications; 0AC808.9-1 is the only standard 8-port version
16. Upgrade alternatives (managed switches): 0AC100.9, 0AC101.9 (support VLAN, port management and redundancy)
17. Alternativas entre marcas: 8-port unmanaged industrial hubs from MOXA / Weidmüller (latency must match POWERLINK requirements)
18. Ventajas clave & Limitaciones

Ventajas

1. Ultra-low forwarding latency with perfect compatibility for B&R POWERLINK real-time motion bus
2. Full-port electrical isolation to resist industrial interference and prevent damage from ground loops
3. Wide operating temperature & voltage range, metal shielded housing, robust industrial-grade design
4. Plug-and-play without configuration; no software setup required

Limitaciones

1. Shared bandwidth leads to network collisions under high concurrent data transmission from multiple nodes
2. No VLAN, port speed limit or network management functions
3. Separate purchase of power terminals increases accessory costs for projects
4. Not suitable for large-scale multi-device networking when heavy broadcast traffic exists

Full Application Scenarios of B&R 0AC808.9 (8-Port Industrial Hub)

Core positioning of 0AC808.9: 8-port industrial hub exclusively developed for B&R POWERLINK real-time motion bus. Featuring ultra-low forwarding latency (0.64~0.68 μs), full-port electrical isolation and DIN rail mounting, it is mainly used for Ethernet signal distribution inside cabinets of small & medium multi-axis machinery. All applicable scenarios are based on the B&R automation platform.

1. Core Industrial Machinery Scenarios (Most Widely Used)

1.1 Maquinaria de embalaje (Largest Consumption Volume)

Vertical bag making machines, horizontal flow wrappers, carton forming machines, multi-station labeling machines, filling & capping integrated machines

Networking Requirement: 1 X20 PLC host + 4~7 ACOPOS servo drives + vision cameras / HMI touch panels. When a single cabinet contains more than 5 nodes, 0AC808.9 is adopted for centralized signal distribution.

Beneficios: Microsecond-level low latency ensures real-time multi-axis synchronization for electronic cam, flying shear and synchronous cutting functions; port isolation eliminates bus faults induced by ground loop currents of servo drives.

1.2 Plastic Injection & Extrusion Equipment

All-electric injection molding machines, máquinas de moldeo por soplado, film extrusion casting lines, pipe extrusion pullers

Solicitud: Expand multiple POWERLINK servo axes (injection axis, mold opening/closing axis, manipulator, traction servo) inside the main cabinet, while connecting temperature control modules and human-machine interfaces.

Adaptabilidad ambiental: Amplio rango de temperatura de funcionamiento (-25℃ ~ +60℃) and metal shielded housing resist strong electromagnetic interference from heating coils.

1.3 Impresión & Paper-Making Equipment

High-speed flexographic printers, gravure printers, slitting & maquinas rebobinadoras, cross-cut paper machines, label printing presses

Working Conditions: High-precision synchronization of dozens of axes (electronic gear, color registration correction). Multiple servo drives are concentrated in the main control cabinet and wired in star topology via 0AC808.9 to replace cumbersome daisy-chain wiring.

1.4 Máquinas herramienta & Metal Processing Equipment

CNC lathes, gantry machining centers, máquinas de corte por láser, stamping manipulators, metal bending machines

Networking: CNC controller + multi-axis servo drives + linear scale signal acquisition modules + operation panels for centralized cabinet wiring; resistant to EMC interference from machine tool inverters and contactors.

1.5 Maquinaria Textil

Warp knitting machines, circular looms, bobinadoras de alta velocidad, nonwoven production lines

Características: Scattered multiple servo nodes and compact cabinet space. Compact DIN rail-mounted 0AC808.9 saves installation space and supports plug-and-play without configuration.

2. Logistics Conveying & Intelligent Sorting
3. Pallet sorters, cross-belt sorting lines, parcel conveying lines, AGV control cabinets for automated warehouses
4. Funciones: Aggregate conveying servo drives, barcode scanning cameras, sorting actuators and remote I/O stations. ABS marine certification allows deployment on port vehicle-mounted sorting equipment.
5. Beneficios: Wde voltage range (18~30 VCC) adapts to vehicle-mounted 24 VDC power supply and withstands shock and vibration.
6. Nueva energía & Electronic Semiconductor Equipment
7. Photovoltaic Equipment: Silicon wafer cutting machines, screen printers, solar cell sorters, module laminators
8. Lithium Battery Equipment: Electrode coating, calendaring, slitting and winding integrated machines
9. Semiconductor Equipment: Máquinas de colocación SMT, chip inspection equipment, cleanroom assembly equipment

Adaptation Highlights: Full-port electrical isolation ensures stable operation in low-dust clean cabinets; low latency meets multi-axis synchronization with micron-level positioning accuracy.

4. Médico & Pharmaceutical Automation Equipment
5. Infusion set assembly lines, capsule filling machines, vial labeling machines, medical device conveying lines with ACOPOStrak flexible transport system
6. Guión: Network PLCs, multiple servo drives and visual inspection cameras inside clean control cabinets. IP20 protection fits dust-free workshops, and simplified network configuration reduces commissioning workload.
7. Marina & Vehicle-Mounted Special Industrial Control Scenarios

Supported by ABS marine certification for the following applications:

1. Marine deck automation control cabinets, auxiliary machinery control systems in engine rooms
2. Mobile vehicle-mounted equipment: 24 VDC industrial control systems for engineering vehicles and mobile inspection devices

Amplia tolerancia a la temperatura, metal shielding and anti-ground-loop port design adapt to harsh conditions with intense vibration and drastic temperature fluctuations.

6. Standard Expansion Scenarios for General Control Cabinets (Matched with Full Range of B&R I/O Modules)
7. Remote I/O station expansion for small & medium production lines: Centralized wiring for X20 remote modules, safety I/O modules and POWERLINK safety nodes
8. Machine Vision Matching: One hub connects the controller and multiple industrial cameras to synchronously collect visual inspection data
9. HMI Expansion for Equipment: Unified aggregation of PLCs, touch panels, remote maintenance Ethernet ports and data acquisition gateways
10. Integrated Control Cabinets for Single Multi-Function Machines: Centralized networking of all network nodes covering motion control, control lógico, machine vision and temperature regulation within one machine.
11. Topology Application Features (Distinguished from Switches, Exclusive to Hub Scenarios)
12. Preferred for Star-Type POWERLINK Networking: When a single cabinet contains ≤7 servo/I/O nodes, 0AC808.9 is used for star aggregation. Compared with daisy-chain topology, it reduces machine downtime risks caused by single cable failure.
13. Not Suitable for Large-Scale Production Lines: Not recommended for systems with more than 15 real-time nodes (shared bandwidth of hubs causes increased cycle jitter due to data collisions). Upgrade to 0AC100 managed switches in such cases.
14. Matching Restrictions: Must be used with 0TB704.9 power terminal blocks; only for IP20 indoor cabinet installation, not for direct outdoor deployment.
15. Core Reasons for Adopting 0AC808.9 across Industries
16. Ultra-low forwarding latency; the only industrial hub compatible with microsecond-level synchronization of POWERLINK;
17. 8 shielded RJ45 ports with full electrical isolation solve port burnout issues caused by ground potential differences on industrial sites;
18. Plug-and-play without configuration enables standardized factory assembly and cuts commissioning man-hours;
19. Compact DIN rail mounting fits the limited internal space of control cabinets for small & medium machinery.