Lantronix JE-CX-TBT-02

Description

Technical Specifications:

• Port 1: 10BASE-T (RJ45 connector), 10 Mbps, half-duplex
• Port 2: 10BASE2 (BNC connector), 10 Mbps, half-duplex
• Standards compliance: IEEE 802.3
• Power supply: 5 VDC, 1.0 A (external power adapter)
• Operating temperature: 0°C to +50°C
• Storage temperature: -20°C to +70°C
• Humidity: 5% to 90% RH (non-condensing)
• Altitude: 0 to 10000 ft (0 to 3048 m)
• Dimensions: 120 mm x 80 mm x 25 mm (approximate)
• Weight: ~150 g

Function Features:

• Transparent media conversion between 10BASE-T and 10BASE2 Ethernet
• Auto MDI/MDI-X on twisted pair port for automatic cable polarity detection
• LED status indicators for power, BNC activity, TP activity, and collisions
• Compact wall-mountable design
• Low power consumption
• Plug-and-play operation, no configuration required

Application Scenarios:

• Legacy industrial equipment with 10BASE2 network interfaces
• Building automation systems with existing coaxial cable infrastructure
• Transition from coaxial to twisted pair Ethernet networks
• Industrial control network retrofits
• Test and measurement equipment with BNC network ports
• Extending Ethernet networks over existing coaxial cabling

Performance Parameters:

• Data transfer rate: 10 Mbps (full wire speed)
• Maximum cable length: 100 m (10BASE-T), 185 m (10BASE2)
• Latency: < 1 ms
• Packet buffer: 32 KB
• Mean time between failures (MTBF): > 100,000 hours

Material Composition:

• Enclosure: ABS plastic with flame-retardant rating
• Connectors: RJ45 jack (8P8C), BNC coaxial connector
• PCB: FR-4 glass epoxy substrate
• Transformer: Pulse transformer for signal isolation
• Power jack: 2.1 mm barrel connector

Structure Characteristics:

• Compact desktop or wall-mount form factor
• Front-facing LED indicators for easy status monitoring
• Rear panel with power jack and network connectors
• Rubber feet for desktop placement
• Keyhole slots for wall mounting
• Lightweight and compact design

Working Principle:

• Receives Ethernet frames from 10BASE-T twisted pair port
• Converts electrical signal format to match 10BASE2 coaxial specification
• Retransmits frames onto coaxial network segment
• Performs same conversion in reverse direction for BNC to RJ45 traffic
• Handles collision detection and signal regeneration per IEEE 802.3 standards
• Automatically adjusts for MDI/MDI-X cable configurations on twisted pair port

Installation Requirements:

• Mount on flat surface or wall in dry, ventilated location
• Connect 5 VDC power adapter to appropriate power source
• Plug twisted pair Ethernet cable into RJ45 port
• Connect 10BASE2 coaxial cable to BNC connector
• Install 50-ohm terminator on unused BNC port if at end of bus
• Keep unit away from sources of excessive heat or moisture

Usage Notes:

• Use only with 10 Mbps Ethernet networks; not compatible with 100 Mbps or faster
• Always terminate both ends of 10BASE2 coaxial bus with 50-ohm terminators
• Do not exceed maximum cable length specifications
• Do not connect or disconnect cables while power is applied
• Clean connectors periodically to maintain signal quality
• Do not expose unit to rain or moisture