1553 Avionics Interface 3U cPCI Card

MIL-STD-1553A/B Interface

cPCI 1553 Interface, 4 Channel, Dual Redundant, Multi-Function (BC, RT & Monitor)
  • One, two, or four MIL-STD-1553A/B Interfaces with full Error Injection and Detection
  • IRIG-B Time Code Receiver / Generator
  • Selectable direct or transformer coupling
  • Single or multi-function configurations
  • 3U cPCI Instrument (3U PXI compatible)
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The QCP-1553 module is a rugged, reliable, full featured, Compact PCI module designed to provide a stand-alone, MIL-STD-1553A/B interface for avionics applications. Up to four independent dual redundant MIL-STD-1553 databus streams are supported by the 3U QCP-1553 module. Additionally, the module offers full functional test, simulation, monitoring and databus analyzer functions for MILSTD-1553A/B applications. An onboard IRIG-B time code decoder and generator allows users to accurately synchronize single or multiple QCP-1553 modules to a common time source. The QCP-1553 module is available in single or full function (RT simulation, monitoring, and bus controller) configurations.


The QCP-1553′s standard features include selectable transformer or direct coupling, 1 Mbyte of RAM per channel, 45-bit message timetagging, triggers, extensive BC & RT link-list structures, error injection/detection, avionics level discretes, automatic/manual RT Status Bit and Mode Code responses, along with advanced BC functionality. An IRIG-B signal Receiver/Generator supports DC / TTL signaling for the generator and AM or DC/TTL signaling for the receiver. With the highest speed encoder/decoder in the industry, the QCP-1553 Bus Monitor provides unparalleled error detection and 100% monitoring of a fully loaded buses.

QCP-1553 multi-function interfaces are easily configured to operate as a simultaneously as a Bus Controller, 31 Remote Terminals and as a Bus Monitor. Single-function QCP-1553 interfaces have all the features and functionality of the multi-function versions, but only one major operational mode is enabled at a time. Each interface can emulate either a Bus Controller or 31 Remote Terminals or a Bus Monitor.

Bus Controller Features

Programmable control over:
- Major and minor frame content and timing
- Intermessage gap times
- Response time-out and late response
- Multiple BC retry
Modify messages, data or setup while card is running
Insert aperiodic messages into a running BC list
“Oneshot“ mode for simplified BC operation
Conditional message sequencing based on real-time message data or status
Selectable interrupt generation and status messages on a full range of system conditions or all detected errors
Full error detection:
- Invalid word
- Late response
- Bit count error
- Early response
- High word
- No response
- Low word
- Incorrect RT address
- Inverted sync
- Parity error
- Manchester error
Extensive programmable error injections (on a per word basis)
Synchronize BC operation to an external time source

Remote Terminal Features

Multiple RT simulation (up to 31 RTs)
Programmable error injection (on a per word basis)
Modify data, status words or setup while card is running
Programmable message content (linked message buffers)
Interrupts can be generated on a per message basis upon
End of Message and error conditions
RT Map Monitoring

Bus Monitor Features

Capture 100% fully loaded bus traffic with:
- Time-tagging – Error status
- Word status – Message status
- RT response time
Interrupts can be selected by RT / SA / WC
Extensive filtering and triggering options:
- By individual RT/subaddress
- Transmit, receive or broadcast mode codes
- Internal or external triggering
- Trigger output on user specified data
Real-time bus playback with RT edit mode


The QCP-1553 module is supplied with an API for Windows 2000/XP/ME. An ATEasy driver, sample code, high level C and C++ interface libraries, and documentation is also provided.


Automatic Test Equipment (ATE)
LRU and SRU test
System level test



QCP-1553-1S 3U cPCI 1553 Interface, Single Channel, Dual Redundant, Single Function
QCP-1553-1M 3U cPCI 1553 Interface, Single Channel, Dual Redundant, Multi-Function (BC, RT & Monitor)
QCP-1553-2M 3U cPCI 1553 Interface, Two Channel, Dual Redundant, Multi-Function (BC, RT & Monitor)
QCP-1553-4M 3U cPCI 1553 Interface, Four Channel, Dual Redundant, Multi-Function (BC, RT & Monitor)




System Interface 32-bit 33/66 MHz PCIbus (Rev 2.2) compliant
Processor Embedded PowerPC (250 MHz)
Memory 1 MB per dual redundant channel
Encoder/Decoder One, two, or four MIL-STD-1553A/B Encoder/Decoder with full Error Injection and Detection
Time Tagging 45 bit, 1 usec resolution
Physical Bus Interface One, two, or four MIL-STD-1553B Trapeziodal Transceivers
Direct coupled or transformer coupled, software selectable
Connector 68-pin SCSI with adapter for accessing 1553 interfaces, discrete I/Os, IRIGB in/out
Avionics I/O 18 software programmable I/O lines. Open drain output & TTL compatible input.
28V maximum, 1A for open drain output. Input is protected to 50 volts with a logic threshold of 2.7 volts.
Size 3U cPCI
Power Consumption 1.1 A @ 5 VDC (2 channel)
1.7 A @ 5 VDC (4 channel)
Operating Temperature Range Standard -0 °C to +70 °C ambient
Humidity 5 to 90% non-condensing


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