900EN: 5-Port Ethernet Switch

Acromag’s five-port Ethernet switch is specially designed for use in industrial applications. Rugged construction and a variety of security features ensure reliable operation under demanding conditions.

Internal intelligence enables “connect and go” operation for fast and easy network installation with auto-negotiation of data rate, flow control, and crossover signal compatibility.

No configuration is necessary when the 900EN-S005 is used as a simple switch with Acromag I/O modules. For advanced users, this switch offers numerous control functions that are easily configured through DIP-switch settings or programmed using your computer.

Network Communication:
Five shielded RJ-45 sockets, 8-pin, 10Base-T / 100Base-TX
Wired MDI-X with automatic MDI-X / MDI crossover
Auto-negotiated 10Mbps or 100Mbps
Auto-negotiated full or half duplex
IEEE 802.3, 802.3u, 802.3x compliance

Power Requirement: 15 to 36V DC supply (2.6 Watts) required

Approvals:
CE/ATEX marked
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D

Special Features

Industrial-Grade

• Reliable performance over wide -25 to 70°C ambient temperature range
• Wide-Range DC-power with redundant power connection for optional standby backup power
• Hardened for harsh environments to protect from RFI, EMI, ESD, EFT, and surges
• Fully isolated for safety and increased noise immunity with power-to-network and port-to-port isolation
• Easy mounting, removal, and replacement with plug-In terminal and DIN-rail mount

High-Performance

• 10Base-T and 100Base-TX support automatically negotiates 10/100Mbps, half or full duplex with flow controls per IEEE 802.3
  
• Store and forward operation for 1024 frames provides integrated address look-up supporting 1K absolute MAC addresses
• Auto MDI/MDI-X crossover & auto-polarity eliminates special up-link/down-link ports or crossover cables
• Unmanaged stand-alone operation does not require PC control
• Broadcast storm protection helps unburden switch resources from excessive broadcast messaging
• Integrated 128KB (32Kx32-bit) high-speed SRAM frame buffer is shared by all five ports and supports 1.4Gbps memory bandwidth

Advanced Features

• Three programmable LED’s per port provide link, activity, full/half duplex, speed indication
• Optional DIP-switch programming offers alternative control of switch functions
• Half-duplex back pressure flow controls defer transmission by other stations to avoid network congestion.
• Energy miser function shuts down individual port power if no cable is connected to conserve energy
• Toggle switch reset and default address generator is also useful to invoke DIP switch field programming and to restore communications to a known state
• Smart address management features automatic address learning, address aging, and address migration
• Advanced options are programmable via connection to your PC parallel port – LPTx (requires optional configuration cable)
• Supports virtual LAN definitions with port-based VLAN controls allowing establishment of VLAN groups for additional security between groups and applications (requires optional configuration cable)
• Queue priority management controls with advanced quality of service (QoS) supports “DiffServ” and IEEE 802.1p-based priority to prioritize different classes of voice, video, and data traffic, plus port-based priority (requires optional configuration cable)

Performance Specifications

Ethernet Interface

Connector: Five shielded RJ-45 sockets, 8-pin, 10BaseT/100BaseTX
Wiring: Wired MDI-X w/ automatic MDI-X / MDI crossover
Data Rate: Auto-negotiated, 10Mbps or 100Mbps
Duplex: Auto-negotiated, Full or Half Duplex
Compliance: IEEE 802.3, 802.3u, 802.3x
Port Status Indicators:
Three LED’s per port: red, yellow, and green.
Two selectable indication modes combine speed, link status, activity indication, and duplex indication.
Address Learning: Automatic, stores up to 1K (1024) MAC addresses
Address Aging: Automatic, 5 minute default, can be disabled
Address Migration: Automatic
Broadcast Storm Protection: Disabled (default), but may optionally select a variable receive threshold
Priority:
Transmit all high priority before any low priority (default) with a variable high:low interleave (optional).
Optionally select DiffServ, 802.1p, and port-based priority controls.
Virtual LAN: Supports virtual LAN definitions.
Communication Distance:
Distance between two devices generally limited to 100 meters.
Hubs and switches can extend distance.
Program Interface: DIP-switches and EEPROM/I2C interfaces allow some operating parameters to be modified and optional modes of operation to be set with or without a PC.

Environmental

Ambient Temperature:
Operating: -25 to 70°C (-13 to 158°F)
Storage: -40 to 85°C (-40 to 185°F)
Relative Humidity: 5 to 95%, non-condensing
Isolation: Power and network circuits are isolated from each other for common-mode voltages up to 250VAC, or 354V DC off DC power ground, on a continuous basis (will withstand 1500VAC dielectric strength test for one minute without breakdown).
Power Requirements: Non-polarized 15-36V DC SELV (2.6 Watts)
Electromagnetic Interference Immunity (EMI): Product has demonstrated resistance to digital upsets with interference from switching solenoids, commutator motors, and drill motors.
Regulatory Approvals:
Electromagnetic Compatibility (EMC): EN50082-1
ESD: EN61000-4-2
RFI: EN61000-4-3 and EN50204. EFT: EN61000-4-4
Surge: EN61000-4-5
CRFI: EN61000-4-6
Emissions: EN50081-1
Radiated Emissions: EN55022 Class A