Acer Aspire T680 Service Manual page 29

DRQ Assignment Map
DRQx
DRQ0
DRQ1
DRQ2
DRQ3
DRQ4
DRQ5
DRQ6
DRQ7
NOTE: N - Not be used
Environmental Requirements
Item
Temperature
Operating
Non-operating
Humidity
Operating
Non-operating
Vibration
Operating (unpacked)
Non-operating (packed)
Shock Operating
Drop Test
Drop Test
Definition The protection ability of packing & cushion must be capable of withstanding, with no physical or
functional demage, mechanical impact from height-specific drops.
Test Standard
Package Cross Weight
KGs
0~9.1 0~20
9.1~18.2 20~40
18.2~27.3 40~60
27.3~45.4 60~100
10 drops : one corner, three edges, six surfaces
Mechanical Specifications
Item
Dimensions(main footprint)
Weight
22
System Devices
N
N
FDD
N
Cascade
N
N
N
+5°C ~ +35°C
-20 ~ +60°C (Storage package), -10°C~+60°C (un-package)
15% to 80% RH, non-condensing
10% to 90% RH, non-condensing at 40°C
5 ~ 500Hz, 2.20g RMS random,10 minutes per axis in all 3 axes
5 ~ 500Hz, 1.09g RMS random,1 hour per axis in all 3 axes
Half sine, 2g 11m seconds
lbs CM
76
61
46
31
180(w)x352(H)x406(D)mm
4.74 Kg
Add-On-Card Devices
Reserved
Reserved
N
Reserved
N
Reserved
Reserved
Reserved
Specifications
Drop Height
Inch
30
24
18
12
Specification
Not of Drop
10
10
10
10
Chapter 1