Aitech A661

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

Manufacturer: Aitech
Aitech A661

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 Non-invasive 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
Recab UK
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