Products Description
XYCOM XVME-955 I/O Expansion Carrier Module

Technical Specifications
Model:XVME-955
Brand:XYCOM
Product type:VMEbus PC/AT I/O Expansion Carrier Module
Power supply:+5V,+12V,-12V VME backplane power
Bus interface:Standard VMEbus,slave interface,PC/AT local bus for daughter board
Form factor:6U single-height VME card
Weight:0.75kg
Expansion:PC/AT daughter card mounting site,support multiple optional daughter modules
Onboard communication:Depends on installed daughter card
VME addressing:A16/A24/A32
Onboard indicator:LED status indicator,RESET switch
Operating temperature:0℃ ~ +70℃
Storage temperature:-40℃ ~ +85℃
Relative humidity:5%~95%,non-condensing
Certification:CE,UL
System compatibility
XVME-955 belongs to XYCOM XVME series I/O expansion carrier board.
It works together with XVME-682,XVME-684,XVME-686 PC/AT VME CPU boards.
Compatible with turbine,compressor and legacy DCS control systems via VME bus.
Commonly used for power plant,oil & gas,petrochemical old equipment maintenance and spare replacement.
Function
Act as peripheral expansion carrier for XYCOM XVME PC/AT VME CPU series.
Provides PC/AT local bus interface for pluggable daughter I/O modules.
Extend serial ports,parallel ports,storage interface or digital I/O according to daughter card type.
Transmit signals between VME backplane and PC/AT local bus.
Realize system peripheral expansion without occupying extra VME slots.
Onboard hardware reset circuit for daughter modules.
Support system self-test for carrier and installed daughter card,fault state displayed via LED indicator.
Installation
Power off VME chassis.
Insert XVME-955 card into empty 6U single-height VME slot,tighten front panel fixing screw.
Install selected PC/AT daughter module onto XVME-955 carrier board.
Set base address via board jumpers.
Connect peripheral wiring on front panel.
Power on chassis,run hardware self-test together with paired XVME CPU board.
Interface
VME P1,P2 backplane connector,PC/AT daughter card connector,front panel peripheral port,LED indicators and reset switch.
Feature
6U single slot VME I/O carrier board,XYCOM XVME series.
PC/AT local bus architecture,match with legacy XVME 68x CPU modules.
Modular daughter card design,diversified peripheral expansion.
Signal isolation design to reduce field interference.
Discontinued obsolete VME module,supply only for old production system spare replacement.
Vibration resistant PCB design,suitable for turbine control cabinet.
Diagnostic
LED alarm on:daughter card fault,address jumper error,bus signal failure or power supply abnormality;
Peripheral no response:check daughter card installation,jumper setting and cable connection;
VME communication failure:check backplane contact and address configuration.
Product Brief
XYCOM XVME-955 is legacy VMEbus 6U I/O expansion carrier module for XVME PC/AT CPU boards.
It provides flexible peripheral daughter card expansion,widely used as spare part for turbine and compressor control,petrochemical and power plant old DCS renovation.

Disclaimer
All parameters are for reference only and not for quotation basis. Goods are scarce and will be powered on for inspection before shipment. Overseas delivery lead time 3-7 working days. This item is only used for equipment maintenance and retrofit.