HP E1421B 6-Slot, C-Size VXI Mainframe

The HP E1421B C-size, 6-slot VXI mainframe is a compact, cost-effective solution for configurations requiring fewer slots than the 13-slot HP E1401B C-size mainframe.

The smaller size and weight of the HP E1421B make it an excellent choice for either portable or rack-mount applications. The HP E1421B complies with the VXIbus Specification by providing injector surface rails used by the HP QUIC easy module insertion and extraction system.

HP has incorporated its industry-leading Pressurized Air Channel cooling system into the design of the HP E1421B. It ensures clean, uniform airflow to each module. For greater power supply serviceability, power input intake is through the rear of the mainframe. Airflow is through the right side and exhausts through the left.

Refer to the Related Links Section below for instrument driver availability and downloading instructions, as well as for recent product updates, if applicable.

[ Features ]

6-Slot, C-size
Compact size, low cost
Portable or rack-mount
Ultra-reliable power supply
Power supply serviceable through the rear panel
Pressurized air channel cooling

[ Specifications ]

Airflow and Power Supply Serviceability

Power input through the rear
Power supply serviceable through the rear panel
Cooling air enters through right side and exhausts through the left side
No air filters




Backplane
High performance
Monolithic
6 slots
VXI P1 and P2 connectors

The backplane features solid state automatic daisy-chain jumpering for the VMEbus grant and interrupt
acknowledge lines, eliminating the need for hand selection of switch settings. The HP E1421B backplane is
 compatible with the HP backplane connector shield kit, P/N HP E1400-80920.
 
 

Mechanical Specifications
                                 mm       inches

Height without bottom feet:      221.5    8.72
Height with bottom feet:         233.4    9.19
Width without side feet:         425.5   16.75
Width with side feet:            447.8   17.63
Depth with rear feet +
power supply handles:            558.8   22.00
Weight:                          13.9 kg / 30.6 lbs



Power Specifications
Power output:
The power supply generates backplane logic signals ACFAIL* and SYSRESET* in full compliance with the VXI
Specification, Revision 1.4.

DC Output Voltage  Pk Current at 55 °C IMP  Dynamic Current IMD

+5 V               45 A                     5 A
+12 V              8 A                      2.5 A
–12 V              8 A                      2.5 A
+24 V              8 A                      4 A
–24 V              8 A                      4 A
–5.2 V             40 A                     5 A
–2 V               15 A                     3.5 A



Usable power
450 W maximum at 55 °C



Power Supply Protection
All outputs are protected from over-temperature, over-voltage, over-current, and short-to-ground.



Power Input
Input voltage:     100 Vac to 264 Vac
Input frequency:   47 Hz to 66 Hz
Inrush current:    40 A max



Cooling
Temperature rise:  10 °C (through the module for a 60 W module with typical density)



Environmental and Regulatory
Acoustic noise:
Low-speed fan:    53 dBA sound pressure (at bystander position)
High-speed fan:   59 dBA sound pressure (at bystander position)



Shielding
Intermodule:    Gasketing per VXI Rev. 1.4, B.7.2.3. is provided.
Backplane:      Backplane Connector Shields per VXI Rev. 1.4, B.7.2.3
                (available as Option 918 or as a separate accessory, HP E1421-80920)
Intermodule
chassis:        Intermodule chassis shields per VXI Rev 1.4, B.7.3.4
                (available as a separate product, HP E1409B)



Electromagnetic Compliance

To ensure compliance with RFI levels specified in standards EN55011 and CISPR11, the Backplane Connector shields
must be installed in the mainframe. Order Option 918 to get shields factory installed.
The HP E1409B C-Size Chassis Shield allows grounded shielding between mainframe slots in the HP E1401A/B
and E1421B VXI Mainframes. This shield fits between slots – not using up a mainframe slot.



VXI Characteristics
VXI device type:      Mainframe
Data transfer bus:    All per VXIbus specification, Rev. 1.4
Size:                 C
Slots:                6
Connectors:           P1/2
Shared memory:        n/a
VXI busses:           All per VXIbus Standard Specification, Rev. 1.4



Available Current
         I_MP        I_MD

+5 V:    45.00      5.00
+12 V:    8.00      2.50
–12 V:    8.00      2.50
+24 V:    8.00      4.00
–24 V:    8.00      4.00
–5.2 V   40.00      5.00
–2 V:    15.00      3.50



Cooling/Slot
Watts/slot:       60 W (10 °C rise)
DeltaP mm H₂O:    n/a
Air Flow liter/s: n/a

[ Ordering ]

HP E1421B 6-Slot, C-Size VXI Mainframe Opt 500 VXI Module Installation with standard Address Opt 908 Flange Kit Opt 909 Handle and Flange Kit Opt 915 Smoked Acrylic Door Opt 916 Recess Flange Mounting Kit Opt 918 VXI Backplane Connector Shield Kit Opt W01 3 year Return to HP to 1 year OnSite Warranty HP E1400-80920 Shield, Backplane Connector HP E1400-60202 Filler Panel 1 Slot HP E1421-65000 Flush Rack Flange Kit HP E1421-80916 Recess Flange Mounting Kit HP E1409B Series C chassis shield for the E1401A HP 1494-0060 Rack Slide Kit HP 1494-0061 Rack Slide Kit for Non-HP Rack

[ Key Literature ]