VPX Power Backplane 3U 2Slot Low Input Voltage


Part number: B1932D4220 without Shelfmanager Interface

Part number: B1932D4230 with Shelfmanager Interface

Key Features
  • Compliant to VITA 62.0
  • Low Input Voltage 18 - 36VDC)
  • M4 studs for input voltages
  • Input (max.): 80A limited by P(Out = 680W)
  • Power input: 3U-Power VITA 62
  • Output (max.): 680W (90% eff.)
  • Output nominal:
  • VS1: 12VDC – 80A
  • VS2: 3V3 – 40A
  • VS3: 5VDC – 80A
  • 3V3AUX – 12A
  • ± 12VAUX – 3A
  • limited by Power-GND to 1360W (12V + 5V)
  • M4 studs for output 12V, 5V and GND
  • M3 studs for output 3,3V and 3,3VAUX
  • PCB size 128,5 mm x 79,56/(118,93) mm x 3,0 mm
  • Operating temperature: -40° - +85°C
  • Storage temperature: -55°C - +85°C
  • Flammability rating: UL94-V0


Connector XPSU, XPSU 2

R4, R6, R8, R9, R10 is optional if sense lines cannot be connected


VPX - Signal Connector from Power Backplane to Backplane (XSIG)

1,3: Return path for signals, grounded on VPX-Backplane
2: Failure in PSU (out, L)
4: System Reset (in, L)
5,6: User defined signals - for future use
7,8: Nuclear event detection
10-14 Sense for voltage adjustment



IPMB (A+B) Connector for VPX Power Backplanes (XI2CA + XI2CB)

1,3: Serial clock and data, IPMBA (SM0,SM1) of VPX
4: IPMB-Power is connected at VPX-Backplane
5: Not available from PSU



Connector for control of VPX Power Backplanes (XCTR, XCTR 2)

1,3: Return path for signals, grounded on VPX-Backplane
2: Enable PSU (in, L)
4: Inhibit PSU (in, L)


R15 is optional for continuous Power supply ENABLE-Signal

R28 is optional for access to 12V by XCTR connector


Connector for auxiliary voltages (XAUX, XAUX 2)

1: Auxiliary voltage ~ 3.0 V (2.55-3.5V, for setups, volatile memories etc.)



Connector for 2-Slot VPX Power Backplane

1: Enable PSU1 (in, L)
2: enable PSU2 (in, L)
3: Inhibit PSU1 (in, L)
4: inhibit PSU2 (in, L)



Switch SW1

RA0, RA1 resistors are optional for fixed geographic address


Connector Fans (X78)

X75, X76, X77

Connector Fans (X75, X76, X77)


Connector Schelfmanager (X80A)


Connector Schelfmanager (X80B)