The unit has been qualification tested for extreme MIL-STD-461F EMI/EMC and MIL-STD-810G thermal, shock, vibe, humidity, altitude, and ingress conditions, as well as RTCA/DO-160G airworthiness tests for low temperature and high altitude operation. Gigabit Ethernet interfaces are brought out over rugged MIL-DTL-38999 connectors on the front panel and optionally Tactical Fiber Optic Cable Assembly (TFOCA II) connectors on the rear. Managed and unmanaged switch configuration are available for configurable or plug and play Gigabit Ethernet LAN applications.
Designed for rugged extremes, this Size, Weight, and Power (SWaP)-optimized Commercial-Off-the-Shelf (COTS) solution is well suited for C4ISR technology refresh and situational awareness upgrade programs. To enhance reliability, the unit features no moving parts, a near cable-less internal design, all industrial temperature grade components, EMI filtering, and a sealed dust/ waterproof aluminum chassis with isolated MIL-STD-1275/704 power supply that protects against vehicle/aircraft voltage surges, spikes and transients.
The DuraNET 1268 features an onboard microprocessor for local/remote control and port monitoring, as well as support for Quality of Service (QoS) traffic prioritization, Virtual Local-Area Network (VLAN) trunking, Telnet remote CLI management, and Rapid Spanning Tree (RSTP) redundancy. To enhance security and system management, the unit integrates recoverable data zeroization capabilities for declassifying switch data, along with RS-232 Command Line Interface (CLI) and Ethernet management ports. Status LEDs indicate zeroization signal, power, and port link/speed/activity.
Ports
Ethernet - 10x 10/100/1000Mbps Gigabit Ethernet Switch Ports; Management - 1x Serial, 1x 10/100 Ethernet
Management - 1x Serial and 1x 10/100 Ethernet Console Ports for Configuration Management
Interfaces: MIL-DTL-38999 Copper Ethernet on Front Panel and Optional Tactical Fiber Optic Media Assembly (TFOCA II) on Rear
Rugged Small Form Factor
Only ~5 lbs Weight, < 4 Height
Passively Cooled, Aluminum Chassis with Anodize Coating, MIL-DTL-38999 / TFOCA II Connectors
Ingress Protection from Sand, Dust, Water (IP67-like)
MIL-STD Qualified
MIL-STD-810G (Shock, Vibration, Temp, Humidity, Altitude, Immersion)
MIL-STD-461F (Radiated & Conducted Emissions and Susceptibility)
DO-160G (Temperature, Altitude)
Management
Unmanaged or Lightly Managed Switch Configurations:
- Link Speed, Duplex Mode, and Flow Control on Per-Port Basis
- Port Monitoring
- RS-232 Console w/ Command Line Interface (CLI)
- Out-of-Band 10/100 Ethernet Port, Web Browser GUI
- Telnet Server (for remote CLI management over Ethernet)
Redundancy
Spanning Tree Protocol (STP)
Rapid Spanning Tree Protocol (RSTP)
VLAN
Port-Based and 802.1Q Tagged Virtual Local Area Networks (VLAN)
QoS / CoS
802.1p Class of Service (CoS)/Quality of Service (Qos) Traffic Prioritization; Packets Switched into Four Traffic Class Queues; Priority Determined by Port, 802.1p Tagged Frames, IPv4 TOS/Diff-Serv, IPv6 TC
Status LEDs
Front panel status LEDs indicate zeroization signal, power, and port link/speed/activity
Declassification
Data Zeorization Support for Secure Data (Initiated by Offboard Signal Trigger)
Power Supply
MIL-STD-1275D / MIL-STD-704F Vehicle DC/DC Converter with Voltage/Surge Protection & EMI Filtering
Switching Architecture
Non-Blocking OSI Data Layer 2, Low-Latency
Ten Fully Independent 802.3 Media Access Controllers (MACs)
High-Speed Four Traffic Class QoS Switch Fabric
8K MAC Address Look-Up Engine w/Integrated 1MB Frame Buffer Memory
Back-Pressure and Pause Frame-Based Flow Control
Unmanaged or Managed Ethernet Switch Configurations
Standard Compliance
IEEE 802.3 10 Mbps 10BASE-T (Ethernet)
IEEE 802.3u 100BASE-TX 100 Mbps (Fast Ethernet)
IEEE 802.3ab 1000BASE-T 1000 Mbps (Gigabit Ethernet)
IEEE 802.1d Spanning Tree (Bridging)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1p LAN Layer 2 QoS/CoS Protocol for Traffic Prioritization
IEEE 802.1Q Virtual LANs (VLAN) and Trunking, Up to 4096 VLAN IDs
RFC 2460 IP Protocol Support for IPv4 and IPv6 addressing
Telnet Server (for Remote CLI Management over Ethernet)
Note: Legacy models with firmware prior to version 5.X may not support RSTP, Telnet, Web Server functionality
Port Features
Data Transfer: 10 Mbits/sec, 100 Mbits/sec, or 1000Mbps/sec
Duplex: Each Port Works at 10 /100 Mbps, full or half-duplex mode; or 1000Mbps full-duplex mode
Auto-MDI/MDIX, Auto-Negotiation, Auto-Detect; Speed Auto-Sensing, Auto-Crossover; Port Mirroring, Port Monitoring
Media Support
10x 1000BaseT Ports (Copper Ethernet) on Front Panel over MIL-DTL-38999 Connectors
2x or 4x 1000BaseSX Ports Fiber Optic Ethernet on Rear Panel over Tactical Fiber Optic Cable Assembly II (TFOCA II) Connectors 1.25 GBd, 850nm Wavelength, Multi-Mode Optical Transceiver; Switch Fiber Detect Signal Disables Associated Copper Channel as Fiber Port(s) are Utilized
Power
MIL-STD-704F and MIL-STD-1275D Compliant:
28Vdc Vehicle Power Input Voltage (18V to 33VDC Continuous)
1500V Galvanic Isolation with Support for 250V spike and 100V surge
Power Consumption: less than 25W (max)
Warranty
1 Year RTF Warranty (Extended Service Contracts Available)
Physical Characteristics
Physical
Dimensions (LxWxH): 8.32" (211.30mm) x 6.45" (163.83mm) x 3.80" (96.52mm), including Connectors & Mounting Plate (7.56 x 5.30 x 3.80 Excluding Connectors)
Weight: Approximately 5.0 lbs (2.3 kg)
Degree of Ingress Protection: Similar to IP67 / NEMA 6 (Dust Proof, Water Proof)
Connectors: MIL-DTL-38999 (Front Panel) for Management, Power, Console, Zeroize,10x GigE; Optionally TFOCA II Tactical Fiber Optic Connector Assembly (Rear Panel) for 2x / 4x Optical GigE
Installation: Flange Mount Baseplate
Chassis: Aluminum Alloy, Corrosion Resistant, Watertight O-rings
Cooling: No Fans or Cold Plate Required; Passively Cooled via Natural Convection
Finish: Black Anodize (MIL-A-8625, Type II, Class 2)
Environmental
Qualified to MIL-STD-810G and RTCA/DO-160G:
Operating Temperature: -40ฐ to +71ฐC / -40ฐ to +160ฐF (MIL-810G, Methods 501,502) ; -55ฐC Operating Low Temperature (RTCA/DO-160G)
Storage Temperature: -50ฐ to +85ฐC / -58ฐ to 185ฐF (MIL-810G, Methods 501,502) ; -55ฐC Ground Survival Low Temperature (RTCA/DO-160G)
Operating Shock: 40g, 11ms, 3 pos/neg per axis, 18 terminal peak sawtooth pulses (MIL-STD-810G, Method 516)
Crash Hazard Shock: 75g, 11ms, 2 pos/neg per axis, 12 terminal peak sawtooth pulses (MIL-STD-810G, Method 516)
Random Vibration: 5Hz to 2000Hz, 7.98 GRMS Power Spectral Density (PSD) Integral, 3 Axes, 1 Hour/Axis (MIL-STD-810G, Method 514, per Hybrid Jet, Helo, Ground Mobile & Tracked Vehicle Profile)
Humidity: Up to 95% RH @ 40C, Non-Condensing, Conformal Coated (by analysis)
Water Immersion: 1 Meter, 30 Minutes (MIL-STD-810G, Method 512)
Ingress: Blowing Dust/Blowing Rain (by analysis)
Altitude: 50,000 ft / 15,240 meters (RTCA/DO-160G); 15,000 feet / 4572 meters (MIL-STD-810G, Method 500)
EMI/EMC
Qualified & Tested to Meet MIL-STD-461F:
CE102 Conducted Emissions, Input Power Leads, 10 KHz to 10MHz, figure CE102-1 for 28VDC
CS101 Conducted Susceptibility, Power Leads, 30 Hz to 150 KHz, CS101-1, curve 2
RE102 Radiated Emissions, Electric Field, 10 KHz to 18 GHz, Fixed Wing Internal <25 Meters, Figure 102-3 (Aircraft & Space Systems)
RS103 Radiated Susceptibility, Electric Field, 30 MHz to 18 GHz, 200 V/m, table VII (Aircraft & Space Systems)
Reliability
No Moving Parts. Near Cableless Design
Assembled to IPC-A-610 Class III Workmanship
All Industrial Temperature Grade Components
Mean Time Between Failure (MTBF) for PRV-1268-01/-00 per MIL-HDBK-217F @ 25ฐC / @ 60ฐC:
358,554 Hours / 252,747 Hours (Ground Benign, Controlled)
38,824 Hours / 24,301 Hours (Ground Mobile)
41,443 Hours / 25,774 Hours (Airborne Inhabit Fighter)
17,251 Hours / 11,045 Hours (Airborne Rotary Winged)
Optional Accessories
Breakout Wiring Harness Set for Lab / Testing (MIL Connectors to Standard Commercial Type):
CBL-1927-01: Starter Breakout Cable Set, Mating MIL-C-38999 to RJ-45/Serial/Power, 1 Meter
CBL-1927-02: Starter Breakout Cable, Mating TFOCA II to LC Optics, 1 Meter Length (for 2 Ports)