Products Description
HIMatrix B9302 I/O Expansion Subrack Assembly Kit

Technical Specifications
Model:B9302
Brand:HIMA(HIMatrix)
Safety certification:SIL3,IEC61508,TÜV certified
Rack specification:19 inch,4U height
Slot quantity:16 dedicated I/O module slots
Included accessories:K1406 backplane,F7553 bus coupling module,flat cable,cable tray,ground bar
Power bus:24V DC input,internal 5V backplane power
Mounting:19 inch cabinet installation
Protection class:IP20
Operating temperature:-20~+60℃
Relative humidity:5~95% non-condensing
Weight:9.8kg
Certification:CE,ATEX compliant
System compatibility:Matches HIMA H41q / H51q HIQuad safety rack system,works as I/O expansion rack connected to main CPU rack via F7553,for petrochemical,chemical plant ESD emergency shutdown and F&G fire gas protection system.
Function:4U I/O expansion subrack kit,used to expand available I/O slots of HIQuad system.Equipped with F7553 coupling module to realize backplane bus communication between main rack and expansion rack.
Installation:Install 4U rack into 19-inch cabinet,install I/O modules into slots,connect flat bus cable between main rack and expansion rack,complete bus parameter setting.
Interface:
‑Backplane bus connector
‑F7553 coupling module slot
‑24V DC power terminal block
‑Module front slot openings
Circuit feature:Safety-grade backplane PCB,stable bus transmission,built-in hardware self-diagnosis,anti-interference design,meets SIL3 functional safety requirement.
Feature:HIQuad dedicated I/O expansion rack assembly B9302. Common faults:backplane damage,coupling module failure,bus cable aging.Confirm main rack type before replacement.
Diagnostic:Rack or coupling module fault triggers expansion rack offline,all I/O channels in this rack lose communication and generate fault alarm.

Built‑in function
B9302 expands I/O capacity for HIMA HIQuad SIS safety instrumented system,widely used for chemical and power plant safety spare replacement.
Product Brief
B9302 belongs to HIQuad expansion rack family,4U 19-inch SIL3 I/O subrack assembly kit with built-in coupling module. Verify main rack and bus compatibility before ordering. Test bus communication and all I/O channels during commissioning. ESD anti‑static protection shall be followed during installation.