Technical Specifications Shared Redundancy Memory Size: 16MB Backplane Power Consumption: 350mA @5VDC Redundancy Communication Interface: Dedicated differential high‑speed sync port Dielectric Isolation Voltage: 1500V RMS Operating Ambient Temperature: 0°C to +60°C Storage Temperature: ‑40°C to +85°C Relative Humidity: 5%‑95%, non‑condensing Certification: CE, UL, cUL
Functional Features It provides 16MB shared memory space for redundancy tasks. Runtime variables and complete I/O image tables get real‑time mirroring. The module continuously monitors the health status of redundancy links. Front‑panel multi‑color LED indicators show sync activity and fault alarms.
Application Scenarios RX7i hot‑standby redundant control configuration High‑availability process‑control cabinet Zero‑downtime critical production facilities Power‑industry automatic control equipment Redundant system spare‑part replacement
Performance Parameters Low‑latency transmission for redundancy mirror data. Instant detection for redundancy link faults. Shock and Vibration: Complies with IEC 60068 industrial environmental standard
Material Composition Module housing: High‑strength flame‑retardant industrial plastic PCB substrate: FR‑4 high‑temperature resistant printed‑circuit material Bus contact fingers: Gold‑plated copper alloy Internal components: Industrial‑grade memory chips and signal processing ICs
Structural Characteristics Standard RX7i form‑factor plug‑in rack module. Front‑panel multi‑color LEDs display sync activity, link status and fault alarm. One dedicated high‑speed differential connector serves redundancy signals. Gold‑plated contact fingers connect to the rack backplane bus. Internal circuit includes memory chip group and differential signal processor. Spring‑loaded mechanical locking latch secures the module in slot.
Working Principle This module talks to primary CPU and standby CPU via backplane bus and paired redundancy cable. Active primary CPU writes runtime variables, I/O image tables and system status into shared memory. Standby CPU reads mirrored data cyclically to keep identical operating status.
Installation Requirements Install the module into the designated redundancy slot inside RX7i redundant chassis. Complete reliable protective earthing for the whole cabinet. Use original GE dedicated redundancy cable to link two paired CMX modules.
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