Manufacturer: Aitech

The M457 is a general-purpose communication PMC, supporting Pulse Code Modulation (PCM) telemetry, high-speed serial communication (Synchronous/Asynchronous) and discrete I/O. 

The M457 I/O capabilities include one PCM engine, up to 6 high-speed serial channels and up to 16 discrete I/O channels.

The PCM engine is capable of telemetry data stream transmission in a predefined format. These transmission formats include NRZ, RNRZ, RZ, BI? and DM).

The M457 PMC serial channels are independent high-speed synchronous/asynchronous channels supporting bit rates of up to 10Mbps (2Mbps in ASYNC mode).

Data transferred over the PCI bus to/from the carrier board system memory is performed using high-performance DMA engines integrated into the PowerQuicc II controller.

The M457 PMC operates independently and requires only minimal intervention by the host, thus maximizing host performance.


InterfaceTelemetry PCM, High-Speed Serial and Discrete I/O Communication PMC
High-Performance MPC8260 PowerQUICC II TM Communication Controller
PowerSpan II TM PCI to PowerPC Bridge
IRIG 106 Standard PCM Data Structure at Data Rate of up to 5Mbps
PCM and Communication Parameters are Fully Software Programmable
RS-422/TTL Digital Outputs Transmitting Raw PCM Data Stream and Clock
Up to Six (6) RS-422/485 or RS-232 High-Speed Serial Sync/Async Channels Independently Programmable (Three (3) when PCM is used)
Serial Channels Support Sync/Async Data Rates of up to 10 Mbps/2 Mbps
Up to 23 Independently Programmable Differential RS-422 Discrete I/O Channels (16 with Interrupt Capability)
64MB SDRAM for Data Buffering
OtherMultiple DMA Engines Optimized for Minimum Traffic on the Carrier Board PCI Bus
IEEE 1386-2001 (Air Cooled) or VITA 20-2001 (Conduction Cooled) Compliant
Commercial/Military Level Ruggedisation
Drivers for Wind River VxWorks
BIT (Built-in-Test) Available for Complete Functional Testability
Connector(s)All I/O Channels are Routed to the PMC I/O Connector. High Speed Serial Channels May Be Routed to Front Panel (Air Cooled Version)


ExpansionPCI 2.2 Interface Compliant, 64 bit @ 66 MHz PCI Bus Interface
ElectricalThe M457 draws most of its power from the +3.3V power supply. It has its on-board power circuits for other power levels required by its
Total power consumption (maximum): 4.5W
+5.0V (± 5%) 0.35A (typ) @0.4A (max)
+3.3V (± 5%) 0.5A (typ) @ 0.7A (max)
-12V (± 10%) 0.1A (typ) 0.1A (max)
MechanicalAir-cooled per IEEE 1386-2001 for installation on commercial and rugged air-cooled carrier boards
Conduction-cooled per ANSI/VITA20-2001 for installation on IEEE 1101.2 conduction-cooled carrier boards
Conformal CoatingConformal coating on request
SoftwareThe M457 PMC is delivered with a complete set of VxWorks® drivers and BIT for all the PMCs modules – PCM engine, serial ports and discrete
I/O channels.
TemperatureSeries-100 Commercial
• Temperature range (operation): 0 to +55C
• Temperature range (storage): -40 to +85C

Series-200 Rugged
• Temperature range (operation): -40 to +71C
• Temperature range (storage): -50 to +100C

Series-400 Military
• Temperature range (operation): -55 to +85C
• Temperature range (storage): -62 to +125C

Ruggedisation level is determined in the part numbering scheme - refer to datasheet for further details
HumiditySeries-100 Commercial: 0-90%
Series-200 Rugged, Series-400 Military: 0-95% or 0 to 100% with coating
AltitudeSeries-100 Commercial: 15,000ft
Series-200 Rugged, Series-400 Military: 70,000ft
VibrationSeries-100 Commercial
• Random (g2/Hz): 20-2000Hz/0.02 g2/Hz
• Sine (g PEAK): 10-100Hz/2g

Series-200 Rugged
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
• Air-Cooled: Random (g2/Hz): 20-2000Hz/0.04 g2/Hz
• Air-Cooled: Sine (g PEAK): 10-100Hz/2g

Series-400 Military
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
• Air-Cooled: Random (g2/Hz): 20-2000Hz/0.04 g2/Hz
• Air-Cooled: Sine (g PEAK): 50-500Hz/5.5g
ShockSeries-100 Commercial: 20g/6mS
Series-200 Rugged: Conduction-cooled: 40g/11ms, 100g/6ms
Series-200 Rugged: Air-Cooled: 30g/11ms, 75g/6ms
Series-400 Military: Conduction-cooled: 40g/11ms, 100g/6ms
Series-400 Military: Air-Cooled: 30g/11ms, 75g/6mS
Warranty1 Year



BoardRefer to datasheet for ordering part number scheme
Recab UK
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