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Real-Time Clock & Interrupt Module (RCIM III) (EOL Notice)


What is the Real-Time Clock & Interrupt Module (RCIM III)?

Concurrent’s Real-Time Clock & Interrupt Module (RCIM III) is a multifunction card designed for time-critical applications on Concurrent iHawk multiprocessing systems. The RCIM provides key functionality for single system as well as multiple system applications. Ideally suited for simulation, data acquisition and industrial control solutions, the RCIM includes a synchronized clock, eight programmable realtime clocks, and twelve input and output external interrupt lines. The RCIM mounts in a standard iHawk PCIe or PCI slot and is fully supported by Concurrent’s RedHawk Linux real-time operating system.

See the data sheet



Synchronized Clock

Length64 bits (two 32-bit words)
Resolution (High-order)32 bits – 1 second
Resolution (Low-Order)32 bits – 400 nanoseconds
Accuracy±2.5 PPM
OCXO Frequency Stability Option±10 PPB

Real-Time Clocks

Length32 bit
Resolution1 microsecond (programmable to larger values)
Accuracy±2.5 PPM


External Interrupts12 External edge-triggered input & 12 external outputs
ConnectorsLFH-60 connectors
Distributed Interrupts12 Input/12 Output
Interrupt Response Time<8 microseconds


Form FactorFull-height, half-length PCIe
PerformancePCIe 1.0 x1
Maximum cable length between RCIMs100 ft


Operating Temperature10° to 55° C
Storage Temperature-40° to 70° C
Relative Humidity10 to 90% non-condensing
OtherROHS Compliant

Ordering Information

RCIM III Real-Time Clock & Interrupt ModuleCP4484R-3
RCIM and SENT I/O Interface AssemblyCX-LFH60
RCIM and SENT I/O Interface Assembly with DIN MountingCX-LFH60-DIN
1-Meter CableHS002-3CBL-1
5-Meter CableHS002-3CBL-5
10-Meter CableHS002-3CBL-10
20-Meter CableHS002-3CBL-20
30-Meter CableHS002-3CBL-30

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