Environment Specifications

A P P E N D I X A

This appendix describes the electrical, environmental, and mechanical specifications. It includes connector descriptions and pin outs, as well as illustrations of the board dimensions and connector locations.

A.1 Electrical and Environmental

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

A.1.1 Absolute Maximum Ratings

The following values are stress ratings only. Do not operate at these maximums. See "Section A.1.2, Normal Operating Ranges for normal operating conditions.

TABLE A-1 Absolute Maximum Electrical and Temperature Ratings
Supply Voltage 48V	0 VDC to -75VDC.
Storage Temperature:	-40˚ to +85˚ Celsius
Non-Condensing Relative Humidity:	<95% at 40˚ Celsius

A.1.2 Normal Operating Ranges

TABLE A-2 Normal Operating Electrical and Temperature Ratings
Description	Range
Nominal operating voltage	-36 VDC to -72VDC
Operating temperatures: 60m below sea level up to 1800m above sea level* from 1800m up to 4000m above sea level**	-5˚ to +55˚ Celsius -5˚ to +40˚C
Operating humidity	<85% at 40˚ Celsius
Idle power consumption (without links)	45W
Maximum power consumption with 15W RTM and no AMCs	100W
Maximum power consumption with 15W RTM and 100W shared for all AMC sites)	200W

^{*The MTBF will be significantly reduced if operated above 45˚ C for more than 96 consecutive hours.}^{**The MTBF will be significantly reduced if operated above 30˚ C for more than 96 consecutive hours.}

A.2 Reliability

Reliability prediction was done using Issue 6, Method I, Case 3 of the Bellcore Industrial Reliability program. The prediction assumed 25% operating temperature with 100% duty cycle, in a ground benign, controlled environment.

MTBF: 122,173 hours

2-year limited warranty

A.3 Mechanical

This section includes the mechanical specifications for dimensions and weight.

A.3.1 Board Dimensions and Weight

The switch meets the PICMG 3.0 AdvancedTCA Specification R2.0 ECN002 and AMC.0 R2.0 for all mechanical parameters.

Mechanical dimensions are shown in the illustration and are outlined in the following table.

TABLE A-3 Board Dimensions and Weight
Item	Dimensions or Weight
PCB	280mmx 322.5mm x2.4mm
Board	8U x 6HP (one slot)
Weight	2.12 kg (without AMCs)

FIGURE A-1 PCB Dimensions