The Allied Telesis AT-210T is a 10Base-T Media Attachment Unit (MAU) transceiver that bridges legacy AUI-equipped network controllers to modern Unshielded Twisted Pair cabling infrastructure. This IEEE 802.3-compliant device delivers 10 Mbps Ethernet connectivity over standard UTP wiring at distances up to 100 meters, eliminating the cost and bulk associated with coaxial media while maintaining full compatibility with existing DTE equipment.
Technical Specifications
• Data Rate: 10 Mbps
• Cabling Standard: 10Base-T (UTP)
• Maximum Segment Length: 100 meters (330 ft) over UTP
• AUI Connector: DB15
• 10Base-T Connector: RJ-45
• Power Supply: 12 VDC, 300 mA maximum (via AUI port)
• Physical Dimensions: 2.7 in × 1.7 in × 1 in (approximate)
• Weight: 2.6 oz (0.16 lbs) (approximate)
• Standards Compliance: IEEE 802.3
– Key Features
• Automatic Polarity Correction: UTP receive pair polarity corrects automatically in under one second, eliminating cross-wired cable penalties
• Link Integrity Testing: Continuous monitoring of connection status to multiport repeaters
• Jabber Lock-up Prevention: Integral circuitry blocks continuous erroneous transmission
• SQE/Heartbeat Test: Switch-selectable Signal Quality Error testing
• Loopback Function: Allows MAU connection and operation verification through coaxial media emulation
• Status Indicators: LED feedback for Power, Polarity, and SQE Test conditions
– Typical Applications
• Extension of 10Base-T network segments beyond repeater distances
• Connection of AUI-equipped workstations and legacy network interface cards to UTP infrastructure
• Network environment expansion using cost-effective twisted pair cabling
– Compatibility & Integration
The AT-210T interfaces with DTE equipment featuring standard AUI ports and operates with Cat 5 or higher UTP cabling. It supports direct connection to network hubs, switches, and multiport repeaters equipped with AUI interfaces.
