1264C User Manual
Racal Instruments © 1998
Specifications A-3
Table A-3, Cooling
Characteristic
Description
Per Slot Cooling Capacity
Typically 52W per VXI-8 rev 2.0 (for 10
o
C rise).
Figure A-
1
shows the worst slot cooling curve of the mainframe.
Cooling System
Forced air circulation (positive pressurization).
Slot Airflow Direction
P2 to P1, bottom of module to the top of module
Mainframe Intake, Bench Top
Rear of mainframe
Module Exhaust, Bench Top
Top of mainframe.
Supply Exhaust, Bench Top
Bottom rear of mainframe.
Fan Filter Access
Filter accessible from rear of the mainframe
Figure A-1, Mainframe Worst Case Slot Cooling Curve
SLOT 3
SLOT 2
SLOT 1
SLOT 4
VXI STANDARD MODULE
(P=(.02G G)+.05G)
.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
.5
1.0
1.5
2.0
2.5
3
3.5
H
20
(m
m
)
L/Sec
1264C CHASSIS
DATE JUNE 17-99
IMPELLER 115VAC
VXI-8 FIXTURE, FAN RUN AT HI
MAINFRAME MIN. COOLING CAPABILITIES AT
SEA LEVEL AND IO DEGREE TEMP. RISE IS 52W, SLOT 2
58W, SLOT 1
Summary of Contents for 1264C
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