Environment Specifications

A P P E N D I X B

This appendix describes the electrical, environmental, and mechanical specifications. It includes illustrations of the board dimensions.

This appendix contains the following topics:

Section B.1, Electrical and Environmental

Section B.2, Reliability

Section B.3, Mechanical

B.1 Electrical and Environmental

The following sections provide tables and illustrations showing the electrical and environmental specifications.

B.1.1 Electrical

The AMC.1-HDD SAS disk shall consume no more than the following from the system supplies under normal operating conditions.

TABLE B-1 Electrical Specifications
SUPPLY	SAS (Max
Management power	Less than 100 mA
+12V (spin up less than 8 secs)	1.5A (18W)
+12V normal operating	1.0A (12W)
+12V (idle)	0.75A (9W)
Off State	Less than 0.4W
Max current draw	1.5A during spin-up

B.1.2 Environmental

The environmental values are listed in the following table.

TABLE B-2 Environmental Specifications
Specification		Enterprise SAS
Temperature	Operating (ambient)	5ºC to 55ºC
	Disk enclosure surface	5ºC to 60ºC (operating)
	Nonoperating	-40ºC to 70ºC
	Gradient	3 ºC/min - (20ºC/hour)
Relative humidity	Operating	5% to 95%
	Nonoperating	5% to 95%
	Maximum wet bulb	29ºC (operating)
Vibration	Operating	1 G (20 to 300 Hz)
Vibration	Nonoperating	5 G (20 to 300 Hz)
Shock	Operating	100 G/1ms duration
Shock	Nonoperating	400 G/1ms duration
Altitude	Operating	-1,000 to +10,000 feet
Altitude	Nonoperating	-1,000 to +40,000 feet
Performance	RPM	10,025 rpm
	Seek time avg	Read/write 4.5 m/s (typical)
	Seek time max	Read/write 9.0m/s (typical)
	Interface	SAS 3.0 Gb
	MTBF	See the following table.

TABLE B-3 MTBF Values by Temperature
Temperature	MTBF
0ºC	1234247.92
5ºC	1104059.81
10ºC	977994.82
15ºC	858417.32
20ºC	747143.26
25ºC	645377.07
30ºC	553731.31
35ºC	472305.36
40ºC	400796
45ºC	338615.02
50ºC	284997.04
55ºC	239088.16
60ºC	200012.91
65ºC	166920.57
70ºC	139014.35

B.1.3 Absolute Maximum Ratings

The following values are stress ratings only. Do not operate at these maximums. See Section B.1.4, Normal Operating Ranges for normal operating conditions.

Payload voltage, +12V	0 VDC to +13.2 VDC
Management voltage, +3.3V	3.135 VDC to +3.465 VDC
Storage temperature	-40 to +70˚ Celsius
Noncondensing relative humidity	5% to 95% at 29˚ Celsius

B.1.4 Normal Operating Ranges

Description	Range
Nominal operating voltage	+10.8 to +13.2 VDC payload power 3.135 VDC to +3.465 VDC management power
Operating temperatures*: 60m below sea level up to 1800m above sea level from 1800m up to 4000m above sea level	-5˚ to +55˚C -5˚ to +40˚C
Operating humidity	Less than 85% at 29˚C
Idle power consumption (without links)	9W
Maximum power consumption	12W

^{*The MTBF will be significantly reduced if operated above 30˚C for more than 96 consecutive hours.}

B.2 Reliability

Reliability prediction was done using Telcordia document SR-332, Issue 1. The prediction assumed 25˚ Celsius operating temperature with 100 percent duty cycle, in a ground-benign, controlled environment.

MTBF: 630,000 hours

One year limited warranty

B.3 Mechanical

This section includes the mechanical specifications for dimensions and weight. The AMC.1-HDD SAS disk meets the PICMG 3.0 AdvancedTCA Specification R2.0 ECN002 and AMC.0 R2.0 for all mechanical parameters.

B.3.1 Board Dimensions and Weight

The AMC.1-HDD SAS disk is 181.5 mm by 73.5mm and conforms to the component height requirements of a mid-size module and can be configured as a full-size module. PCI Express x4 connections are made through the AMC edge fingers.

The AMC.1-HDD SAS disk conforms to the PICMG AMC.0 single-width, mid-height AMC Form Factor for all mechanical parameters. Mechanical dimensions are shown in the illustration and are outlined in the following table.

Item	Dimensions or Weight
PCB	181.5 mm x 73.5 mm x 1.6 mm
Board	AMC.0 R2.0 single-width, full-height form factor
Weight	181.4g

FIGURE B-1 AMC.1-HDD SAS disk PCB Dimensions

Figure showing AMC PCM dimensions.