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Aitech A661 - 2 x 24-Port Rugged Managed Ethernet Switch

Rugged 48-Port (2 X 24 Ports) Managed Gigabit Ethernet Switch


Aitech's A661 is a rugged 48-port (2 x 24 ports) managed Gigabit Ethernet switch comprising two Aitech C660 24-port Ethernet Switch boards housed in a rugged enclosure. The C660 boards are based on the Marvell Prestera 98DX4122 Multi-Layer  Gigabit Ethernet Switch packet processor, which performs Layer 2 and Layer 3 routing and switching for the 24 Gigabit Ethernet ports.


Main Specification

FunctionLayer 2 and Layer 3 Management
Full Wire-speed Non-blocking Forwarding
IP Routing Functionality
Advanced Spanning Tree Algorithms (RSTP, MSTP)
Access Control List (ACL) Support
QoS Management
IPv4/v6 Differentiated Services (DiffServ)/DSCP Traffic Prioritization
WEB and CLI Configuration and Monitoring
802.1Q-based VLAN Support
Port-level Security via 802.1X Authentication
SNMP v1, v2c, v3
Supports OSPF v3, PIM
4/8/16 Group LAG Support with Protocol (LACP)
All types of Storm Control
Port Mirroring for Noninvasive Monitoring of Switch Traffic
Jumbo Frame Support (10kB)
Integral Rugged Power Supply
Temperature Sensors
Interface(s)All Gigabit Ethernet ports support 10/100/1000Mbps rates through 10Base-T/100Base-TX/1000Base-T connections.
Port Features
• Auto Negotiation Supported
• Auto MDI/MDIX Supported
• Head of Line (HOL) Blocking Prevention Supported
• Flow Control (IEEE 802.3X) Support
• Back Pressure Support
• Jumbo Frames Support
• Cable Analysis
• Manual Port Control and Identification Supported
Controller(s)Marvell Prestera 98DX4122 Multi-Layer Gigabit Ethernet Switch packet processor, which performs Layer 2 and Layer 3 routing and switching for the 24 Gigabit Ethernet ports.
Connection(s)All system power and I/O connections are via rugged military grade MIL-STL-38999 connectors on the A661 front panel


ElectricalThe A661 is powered by a standard 28 Vdc (nominal) power supply per MIL-STD-704D (with 16 V minimum input voltage). It is protected by an input line filter to minimize EMI/RFI. Maximum power consumption is less than 75W.
MechanicalFootprint: 275mm (10.9) x 213mm (8.4) x 130mm (5.2)
Envelope*: 277mm (10.9) x 240mm (9.5) x 130mm (5.2)
* includes front panel connectors and lifting handles.
TemperatureSeries-200 Rugged
• Temperature range (operation): -40 to +71C
• Temperature range (storage): -50 to +100C
The A661 will operate reliably when mounted on a 50°C cold plate
HumiditySeries-200 Rugged: 0-95% or 0 to 100% with coating
WeightLess than 7.5kg
AltitudeSeries-200 Rugged: 70,000ft
VibrationSeries-200 Rugged
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
ShockSeries-200 Rugged: Conduction-cooled: 40g/11ms, 100g/6ms
Warranty1 Year

Ordering Details

BoardRefer to datasheet for ordering part number scheme