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Industrial Network Connectivity and ControlThe Hirschmann GREYHOUND GRS105-24TX/6SFP-2HV-2A (part number 942287002) is a 30-port managed rackmount industrial Ethernet workgroup switch. It provides 24 10/100/1000 TX ports and six GE/2.5GE SFP slots. This combination supports copper and fiber connectivity for networks with multiple connected devices. The fanless switch is compatible with Hirschmann HiOS 2A software. VLAN functions support network segmentation, and SNMP provides network management access. USB-C enables local management, while the SD card slot connects the ACA31 auto-configuration adapter. Two 110–240 V AC power inputs provide redundant power supply capability. This model replaces the MACH104-20TX-F. A five-year manufacturer’s guarantee applies. Features and Benefits- 24 TX ports with 10/100/1000 connectivity.
- Six GE/2.5GE SFP slots for fiber connections.
- Fanless construction and rackmount installation.
- Compatibility with Hirschmann HiOS 2A software.
- VLAN and SNMP support for managed workgroup networks.
- USB-C local management and an SD card slot for the ACA31 adapter.
- Redundant AC power supply with two IEC power inputs.
Applications and Recommended UsesRecommended uses include industrial network aggregation and rack-mounted workgroup networks. The combination of copper ports and SFP slots allows the switch to consolidate connections from production equipment, access switches, and supervisory systems. - Plant-floor aggregation connecting multiple machine or production-cell networks.
- Central network racks linking industrial control systems and supervisory workstations.
- Office and operational technology networks requiring managed connectivity between network segments.
- Copper-dense workgroup networks using SFP uplinks to connect other network locations.
Select SFP modules for the required fiber type and cable distance. Use the switch within its specified operating temperature, humidity, and power limits. The redundant power supply configuration is useful where two AC power sources are available and maintaining network power is a priority. Installation and Network PlanningPlan the rack layout around the switch dimensions and leave sufficient access for copper cables, SFP connections, and power wiring. Use the specified 110–240 V AC, 50–60 Hz supply and remain within the operating temperature and humidity limits. Twisted-pair cable lengths extend to 100 m. Fiber cable distances depend on the selected SFP modules. Industrial HiVision network management software, the ACA31 adapter, and SFP/SFP+ modules are available to order separately. Review the GRS105 manual when selecting modules and configuring the switch. Technical Specifications| Manufacturer | Hirschmann |
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| Model | GRS105-24TX/6SFP-2HV-2A |
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| Part number | 942287002 |
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| Series | GREYHOUND GRS105 |
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| Switch type | Managed rackmount industrial Ethernet workgroup switch |
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| Ports | 24 × 10/100/1000 TX; 6 × GE/2.5GE SFP slots |
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| Software compatibility | Hirschmann HiOS 2A |
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| Cooling | Fanless |
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| Manufacturer’s guarantee | 5 years |
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| Operating voltage | 110–240 V AC, 50–60 Hz for both power supplies |
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| Heat dissipation | 120 maximum BTU/h |
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| Power consumption | 35 W (with one power supply) |
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| Replacement for | MACH104-20TX-F |
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Interfaces| Power supply/signaling contact | Power supply input 1: IEC plug, Signal contact: 2 pin plug-in terminal block, Power supply input 2: IEC plug |
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| SD card slot | 1 x SD card slot to connect the auto configuration adapter ACA31 |
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| USB-C | 1 x USB-C (client) for local management |
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Ambient Conditions| Operating temperature | 14 °F to 140 °F |
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| Storage/transport temperature | -4 °F to 158 °F |
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| Relative humidity | 5 to 90% |
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| MTBF | 837450 hours |
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Mechanical Construction| Dimensions (W × H × D) | 444 mm x 44 mm x 308 mm (17.48" x 1.73" x 12.12") |
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| Mounting | Rackmount |
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| Weight | 5 kg |
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| Protection class | IP30 |
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Cable Length and Network Topology| Twisted pair (TP) | 0–100 m |
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| Multimode fiber (MM) 50/125 µm | See SFP modules |
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| Multimode fiber (MM) 62.5/125 µm | See SFP modules |
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| Single mode fiber (SM) 9/125 µm | See SFP modules |
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| Single mode fiber (LH) 9/125 µm (long haul transceiver) | See SFP modules |
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| Line and star topology | Unrestricted cascading |
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Software and Network CapabilitiesSwitchingIndependent VLAN Learning, Fast Aging, Static Unicast/Multicast Address Entries, QoS / Port Prioritization (802.1D/p), TOS/DSCP Prioritization, Interface Trust Mode, CoS Queue Management, Queue-Shaping / Max. Queue Bandwidth, Flow Control (802.3X), Egress Interface Shaping, Ingress Storm Protection, Jumbo Frames, VLAN (802.1Q), VLAN Unaware Mode, GARP VLAN Registration Protocol (GVRP), Voice VLAN, GARP Multicast Registration Protocol (GMRP), IGMP Snooping/Querier per VLAN (v1/v2/v3), Unknown Multicast Filtering, Multiple VLAN Registration Protocol (MVRP), Multiple MAC Registration Protocol (MMRP), Multiple Registration Protocol (MRP), IP Ingress DiffServ Classification and Policing, IP Egress DiffServ Classification and Policing, Protocol-based VLAN, MAC-based VLAN, IP subnet-based VLAN, Double VLAN Tagging. RedundancyHIPER-Ring (Ring Switch), Link Aggregation with LACP, Link Backup, Media Redundancy Protocol (MRP) (IEC62439-2), RSTP 802.1D-2004 (IEC62439-1), RSTP Guards. ManagementDual Software Image Support, TFTP, SFTP, SCP, LLDP (802.1AB), LLDP-MED, SSHv2, HTTP, HTTPS, IPv6 Management, Traps, SNMP v1/v2/v3, Telnet, DNS Client, OPC UA Server. DiagnosticsManagement Address Conflict Detection, MAC Notification, Signal Contact, Device Status Indication, TCPDump, LEDs, Syslog, Persistent Logging on ACA, Port Monitoring with Auto-Disable, Link Flap Detection, Overload Detection, Duplex Mismatch Detection, Link Speed and Duplex Monitoring, RMON (1,2,3,9), Port Mirroring 1:1, Port Mirroring 8:1, Port Mirroring N:1, Port Mirroring N:2, System Information, Self-Tests on Cold Start, Copper Cable Test, SFP Management, Configuration Check Dialog, Switch Dump, Email Notification, RSPAN, SFLOW, VLAN Mirroring. ConfigurationAutomatic Configuration Undo (roll-back), Configuration Fingerprint, Text-based Configuration File (XML), Backup config on a remote server when saving, Clear config but keep IP settings, BOOTP/DHCP Client with Auto-Configuration, DHCP Server: per Port, DHCP Server: Pools per VLAN, Auto-Configuration Adapter ACA31 (SD card), HiDiscovery, DHCP Relay with Option 82, Command Line Interface (CLI), CLI Scripting, CLI script handling over ENVM at boot, Full-featured MIB Support, Context-sensitive Help, HTML5-based Management. SecurityMAC-based Port Security, Port-based Access Control with 802.1X, Guest/unauthenticated VLAN, Integrated Authentication Server (IAS), RADIUS VLAN Assignment, Denial-of-Service Prevention, VLAN-based ACL, Ingress VLAN-based ACL, Basic ACL, Access to Management restricted by VLAN, Device Security Indication, Audit Trail, CLI Logging, HTTPS Certificate Management, Restricted Management Access, Appropriate Use Banner, Configurable Password Policy, Configurable Number of Login Attempts, SNMP Logging, Multiple Privilege Levels, Local User Management, Remote Authentication via RADIUS, User Account Locking, Password change on first login, RADIUS Policy Assignment, Multi-Client Authentication per Port, MAC Authentication Bypass, Format options for MAC authentication bypass, DHCP Snooping, IP Source Guard, Dynamic ARP Inspection, LDAP, Ingress MAC-based ACL, Egress MAC-based ACL, Ingress IPv4-based ACL, Egress IPv4-based ACL, Time-based ACL, Egress VLAN-based ACL, ACL Flow-based Limiting. Industrial ProfilesEtherNet/IP, Modbus TCP, PROFINET. Time SynchronizationPTPv2 Transparent Clock two-step, PTPv2 Boundary Clock, Boundary Clock with up to 8 synchronizations/s, Buffered Real Time Clock, SNTP Client, SNTP Server. MiscellaneousManual Cable Crossing, Port Power Down. Mechanical Stability| IEC 60068-2-6 vibration | 3.5 mm, 5 Hz – 8.4 Hz, 10 cycles, 1 octave/min.; 1 g, 8.4 Hz-200 Hz, 10 cycles, 1 octave/min |
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| IEC 60068-2-27 shock | 15 g, 11 ms duration, 18 shocks |
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EMC Interference Immunity| EN 61000-4-2 electrostatic discharge (ESD) | 6 kV contact discharge, 8 kV air discharge |
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| EN 61000-4-3 electromagnetic field | 20 V/m (800-1000 MHz), 10V/m (80-800 MHz ; 1000-6000 MHz); 1 kHz, 80% AM |
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| EN 61000-4-4 fast transients (burst) | 2 kV power line, 4 kV data line STP, 2 kV data line UTP |
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| EN 61000-4-5 surge voltage | power line: 2 kV (line/earth) and 1 kV (line/line); data line: 2 kV |
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| EN 61000-4-6 conducted immunity | 10 V (150 kHz - 80 MHz) |
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Approvals| Standards and markings | CE, FCC, EN61131 |
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| Safety of information technology equipment | EN62368, cUL62368 |
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Scope of Delivery and AccessoriesThe scope of delivery includes the GRS105 device and safety instructions. Industrial HiVision network management software, the ACA31 adapter, and SFP/SFP+ modules must be ordered separately.
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