VMIC 333-657755-000 B LSC-3 Transition Board

Module Feature

333-657755-000 B is a single-slot 6U VMEbus passive rear transition I/O board developed by VMIC,model LSC-3 supporting. It mates with corresponding LSC-3 series front VME functional boards,transfers analog and discrete signals from VME P2 rear connector to external field terminal connectors. This board is fully passive without active semiconductor chips,only PCB copper trace routing for signal transmission,without signal amplification,conversion or data processing. It optimizes rack wiring by moving field cable connections to the rear side of VME chassis,reducing front panel cable congestion. Compatible with matched LSC-3 series front-end control and acquisition modules. Rugged Eurocard PCB with conformal coating,shock and vibration screened for power plant cabinet environment,widely used in gas/steam turbine VME control cabinet wiring,aerospace ground test bench and legacy VME chassis rear signal distribution.

Working principle

P2 pins of front LSC-3 VME module connect through VME backplane to P2 connector of this transition board. Internal PCB traces directly route all incoming signals to rear field terminal connectors. No power consumption required; it only provides physical signal path extension and wiring transition.

Onboard components

VME J1/J2 edge connector,P2 rear VME connector,field signal terminal connector,passive copper trace network.

LED indicators

No LED indicators.

Hardware self-diagnosis

Visual inspection of PCB,components and solder joints;continuity test of each signal channel;P2 pin contact verification.

Programming software

No driver or software required,completely passive hardware.

Electrical & Process Parameters

Model:333-657755-000 B Brand: VMIC Device type: 6U VMEbus passive rear transition I/O module Bus standard: VMEbus P2 rear I/O signal routing Control mode: Passive signal breakout,hardware-only connection,no active circuit Power supply: No external power needed Cooling: Convection cooling Protection: ESD protection pads on PCB Mounting: Standard single-height 6U VME rear panel ejector locking Protection class: PCB with optional conformal coating

Mechanical & Structure

Mounting: Single-slot 6U VME Eurocard Protection class: PCB with optional conformal coating

Environmental

Operating temperature:0℃ ~ +70℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification: CE compliant Status: VMIC 6U VME passive rear transition breakout board for LSC-3

Installation

Follow ESD safety procedure before handling.Fully power off VME chassis.Insert 333-657755-000 B into the rear slot aligned with front LSC-3 module.Lock rear panel ejector latches.Connect field wiring to rear terminal connectors.Power on chassis,run continuity check of signal path before commissioning.

Interface

VME J1/J2 backplane connector,P2 rear signal pins,external field wiring terminal connector.

Diagnostic

Board undetected: not applicable for passive transition board. Signal open circuit: cracked PCB trace or loose P2 connector contact. Signal crosstalk: inadequate cable shielding or dense PCB trace layout.

Product Brief

VMIC 333-657755-000 B single height 6U VME passive rear transition board,specially matched for LSC-3 front modules,P2 signal breakout to rear terminals,streamlines field wiring for turbine VME control rack and aerospace test chassis.