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6U VME 4500

The WIENER VME 4500 crate series is a compact new generation of 19″ integrated packaging system with frontal cooling air intake for standard VME/VME64 bus systems with 6Ux160mm cards. Designed primarily for applications in data acquisition, control and test instrumentation it combines superior mechanical quality with lowest noise power supply technology.

Featuring microprocessor controlled power supplies and fans it provides advanced integrated diagnostic and monitoring capabilities. For remote monitoring and control the VME4500 crates are outfitted with Ethernet, RS232 and CAN-bus interfaces.

A unique flexibility is given by the modular packaging approach. The VME 4500 crate consists of the UEV 4503 bin, the UEL 4500 fan tray unit and the UEP 4500 power supply.

Different power supply configurations as well as a variety of crate options are offered.


UEV 4503 BIN

  • 19” x 10U enclosure for 21 VME / VME64 bus cards 6U x 160mm
  • Very rugged steel-aluminum construction features 5mm thick steel-aluminum sandwich side plates with zero-tolerance countersink screw positioning of all horizontal rails,
  • Monolithic 6U VME/VME64 backplane (J1/J2), 10 layer PCB, active termination, active automatic-daisy-chain, CBLT and hot swapping (patented)
  • Free rear side access of VME backplane, optional  rear side transition card cage, depth 80mm/120mm/160mm deep
  • 3 U space for fan tray unit in front (bottom), power supply in rear bottom position
  • Alphanumeric high-visibility LED display for all fan (front- and optional rear ones), bin and power supply parameters (voltages, currents, power, temperatures, set-up data…) situated in 1 U hood which feeds the cooling air flow to the rear side
  • Integrated fan speed and thermal monitoring, adjustable fan speed (1200 … 3600 RPM)
  • Optional second 3-fold fan set placed at hinged rear cover (not with 160mm transition cage)
  • Optional up to 8 temperature sensors in VME card cage above modules
  • Dimensions: 19” x 10U x 430mm [whd], weight: ca. 14 kg

UEL 4500 Fan Tray

  • Designed to provide superior cooling of VME modules in bottom-to-top air flow
  • Equipped with 3 individually controlled long-life DC fans, MFOT >60,000h/40°C
  • Optional additional 3 DC fans in back of chassis (push-pull-mode)
  • Dimensions: 433mm x 3U x 77mm [whd], weight: ca. 3.5 kg – 3 DC fans

UEP 4500 Power Supply

  • High density power supply in WIENER “Cavity-VHF” switching technology with excellent RF-shielding, optionally ultra low noise < 3mVpp (all voltages <12V), other rails <10mVpp
  • Modular and expandable design with self-ventilated universal power blocks, individually sensed DC outputs
  • Micro-processor controlled, programmable voltage adjustment, current limits and over-/ under voltage trip off points, temperature limits
  • Built in combo interface (Ethernet, RS232, CAN-bus) for remote monitoring and control at rear side
  • Self protected against any failure as under/over voltage, over current, over temperature, …
  • 94V – 265V world-wide auto-range AC input, with power factor correction, CE-Conformity
  • High power density, up to 2275 W DC output power
  • Horizontal ventilated (front to back air flow)
  • Dimensions: 430 x 3U x 250mm [whd], weight: from 11 to 13 kg depending on the number of power modules

Ordering Information

Standard configurations (others possible by request).

Crate VersionBackplane+5V+12V-12v


Technical Information

VME / VME64 Backplanes

All WIENER J1, J2 or monolithic J1/J2 VME/VME64 buses are multi-layer backplanes (including power and ground shields) with active automatic daisy chain and active termination outfitted with 96pin DIN connectors as per IEEE-1014-1987 and feature:

  • Strip line technology suitable for data rates of 320Mbyte/s (64bit)
  • High power distribution by current multiplayer / bus bar system
  • Excellent RF shielding
  • Optimized filtering (electrolytic and ceramic filter-capacitors)
  • Minimized ground shift and cross talk
  • Automatic daisy chain
  • flat cable connector for sense and control
  • Provision for up to 8 temperature sensors (module temp. checking)
  • Sense circuit protection by PTC- resistors (Optionally)
Power  per slot VME  VME VME 64 
(20 / 70°C) J1 J2 J1+J2
5V 9,5A / 7,5A 9,5A / 7,5A 19A / 15A
+/-12V 3,2A / 2,5A   3,2A / 2,5A
Layers 8 or 10 4 8 or 10


VME / VME64x Series 4500

Module cage formats 6U´160mm, VME standard, Transition  6U ´ 80mm

Power Supply UEP 4500

Rated mains input range      106- 230VAC ± 15% (90...265VAC)
Rated input current              Sinusoidal 16A for suffix H input, 32A for suffix K input
Inrush current:                      limited to rated input current (cold unit)
Input fuse:                            external, intern on special request
Isolation (Inp.- outp.)           CE EN 60950, ISO 380, VDE 0805, UL 1950, C22.2.950

DC output power:              H for 1000... <3000W (92 …265VAC)
                                           K for 2000... <6000W (92 …265VAC)
H input outfitted with removable power cord (3*1,5mm2) for 16A nominal input current,
K input (6U power box) is equipped with 2m fixed power cord for up to 32A nominal.

static: MEH  550W/650W <15mV (+/-100% load, +/- full mains range)
  MDH (20A) <0,05% (+/-100% load, +/- full mains range)
  MDL / MDH <0,1% (+/-100% load, +/- full mains range)
dynamic.: MEH,  MDH <100mV (+/-25% load)
  MDL / MDH <0,7% (+/-25% load)
Recovery time +/-25% load:   within +-1%      within +-0,1%
  Modules 550W 0,2ms 0,5ms,
  Modules 650W 0,5ms 1,0ms
  MDL / MDH 0,0ms 1,0ms

(Conditions: Current slope <1000A/ms, 21mF per 100A ^ 1mF per slot)

Sense compensation range:  difference between min. and max. output voltage

Available modules
Type Channels Voltage range Peak output / power Noise and ripple
MEH 1 2... 7,0V 115A / 550W 10mVpp,  (0-20MHz ), <2mVrms (0-30MHz
MEH 1 7...16V 46A / 550W <15mVpp,  (0-20MHz ), <2mVrms (0-30MHz)
MEH 1 12...30V 23A / 550W <15mVpp,  (0-20MHz ), <2mVrms (0-30MHz)
MEH 1 30...60V 13,5A / 650W <15mVpp,  (0-20MHz ), <2mVrms (0-30MHz)
MDH 2 2...7,0V (+/-) 30A / 210W (420W) <15mVpp,  (0-20MHz ), <2mVrms (0-30MHz)
MDH 2 7...16V (+/-) 20A / 250W (500W) <15mVpp,  (0-20MHz ), <2mVrms (0-30MHz)
MDL 2 7...24V (+/-) 11,5A / 275W.(550W) <15mVpp,  (0-20MHz ), <2mVrms (0-30MHz)


EMC Compatibility

EMA. EN 61 000-6-3:2001 [RF emission]
  EN 55 022:1998 + Corr:2001 + A1:2000  Class B conducted noise
  EN 55 022:1998+ Corr:2001 + A1:2000  Class B radiated noise
  EN 61 000-3-2:2001 harmonics
  EN 61 000-3-3:1995 +Corr:1997 +A1:2001 flicker
EMB EN 61 000-6-2:2001  [immunity]
  EN 61 000-4-6:1996 + A1:2001 injected HF currents
  EN 61 000-4-3:1996 + A1:1998 + A2:2001 radiated HF fields  incl. ”900MHz”
  EN 61 000-4-4:1995 + A1:2001 Burst
  EN 61 000-4-5:1995 + A1:2001 Surge
  EN 61 000-4-11:1994 + A1:2000 voltage variations
  EN 61 000-4-2:1995 + A1:1998 + A2:2001 ESD


Stability:  10mV or 0,1%  /  24 hours, 25mV or 0,3%  /   6 month  
  (under constant conditions)  
Current limits: adjustable to any lower level   
Voltage rise characteristics:  monotonic 50ms, processor controlled.   
Overvoltage protection: crow bar protection trip off adjusted to 125% of nominal voltage  each output
DC Off (trip off):   within 5ms if >5% deviation from adjusted nominal values,
after overload, overheat, overvoltage, undervoltage (bad status),
and fan fail, if temperatures exceed 125°C at heat sinksLimits programmable.
Outputs discharged by crow bars, when   power supply tripped- or switched Off. 
Efficiency: 75% ... 85%, depends on used modules  
M F O T (Maintenance Free Operation Time):  
internal blowers: 40°C ambient  >65 000 h 
  25°C ambient  100 000 h
electronics: 40°C ambient  >100 000 h
Water cooled power supplies: 40°C water  >100 000 h