Data Sheet
6-Slot, C-Size VXI Mainframe
Agilent E1421B
•
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
Agilent E1421B
Description
The Agilent Technologies E1421B C-size, 6-slot VXI
mainframe is a compact, cost-effective solution for
configurations requiring fewer slots than the 13-slot E1401B
or E84XX series C-size mainframes.
The smaller size and weight of the E1421B make it an
excellent choice for either portable or rack-mount
applications. The E1421B complies with the VXIbus
Specification by providing injector surface rails used by the
QUIC easy module insertion and extraction system.
Agilent has incorporated its industry-leading Pressurized
Air Channel cooling system into the design of the 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 Agilent Technologies Website for instrument
driver availability and downloading instructions, as well as
for recent product updates, if applicable.
Agilent Technologies
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Power
The power supply generates backplane logic signals ACFAIL* and
SYSRESET* in full compliance with the VXI Specification, Revision 1.4.
Usable power: 450 W maximum at 55° C
Power Supply Protection
All outputs are protected from over-temperature, overvoltage, over-current, and short-to-ground.
Power Input
50-60 Hz input power:
Automatic voltage ranging, nominal range: 100-240 Vac ±10%
Nominal frequency range: 50-60 Hz ±10%
400 Hz input power:
Nominal voltage range: 100-120 Vac ±10%
Nominal frequency: 400 Hz ±10%
Inrush current: 40 A max
Agilent E1421B Cooling Specification Charts
VXI-8 Specification Draft 2.0. Fixture revision 1.7.
• VXI-8 Standard Modules installed in all other slots.
• Performance shown for Worst Slot (slot 1) and Best Slot
(slot 4).
• Front-to-Rear Variance 19% worst case.
• Fans on Full Speed.
• Measurements taken at 1,500 m altitude.
General Characteristics
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 E1421B backplane is compatible with the
Agilent backplane connector shield kit, P/N E1400-80920.
Product Specifications
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
All other slots blocked. Airflow decreases as additional
slots are opened.
• Performance shown for Worst Slot (slot 1). Airflow is
greater in all otherl slots.
• Fans on Full Speed.
• Measurements taken at 1,500 m altitude.
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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, p/n E1400-80920)
Intermodule chassis: Intermodule chassis shields per VXI Rev 1.4,
B.7.3.4
(available as a separate product, p/n
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 Agilent E1409B C-Size Chassis Shield allows grounded
shielding between mainframe slots in the E1401B and
E1421B VXI Mainframes. This shield fits between slots – not
using up a mainframe slot.
General Specifications
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 buses: All per VXIbus Standard Specification, Rev. 1.4
Available Current
Peak Current (Amps)
I
MP
Dynamic Current
(Amps)
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)
∆P mm H
2
O: n/a
Air Flow liter/s: n/a
Ordering Information
Description Product No.
6-Slot, C-Size VXI Mainframe E1421B
Flange Kit E1421B 80908
Flange Kit (if ordered separately) 5063-9216
Handle and Flange Kit E1421B 80909
Handle and Flange Kit (if ordered separately) 5063-9223
Smoked Acrylic Door E1421B 80905
Smoked Acrylic Door (if ordered separately) E1421-61205
Recess Flange Mounting Kit E1421B 80916
Recess Flange Mounting Kit (if ordered separately) E1421-80916
Flush Rack Flange Kit E1421-65000
Backplane Connector Shield Kit for 6-Slot Mainframe E1421B 80921
VXI Backplane Connector Shield Kit
for 6-Slot Mainframe (if ordered separately) E1421-80920
Acoustic noise:
Low-speed fan: 53 dBA sound pressure
(at bystander position)
High-speed fan: 59 dBA sound pressure
(at bystander position)
Environmental and Regulatory
Filler Panel 1 Slot E1400-60202
Series C Chassis Shield for E1401B E1409B
Rack Slide Kit 1494-0060
Rack Slide Kit for Non-Agilent Rack 1494-0061
VXI Rail Kit E3665AC
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Product specifications and descriptions in this document
subject to change without notice.
© Agilent Technologies, Inc. 2005
Printed in the USA May 1, 2005
5965-5528E
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