Physical Specifications for Core Components   B

  This appendix describes the following specifications for PortMaster 4 core components:

•  Interface
•  Size and weight
•  Environmental
•  Electrical

       Interface Specifications

  Table B-1 Interface Specifications

 

Interface	Specification
Ethernet	10BaseT (RJ-45), 10/100BaseT (RJ-45 and MII)
Asynchronous serial	RJ-45, with data rates up to 115,200bps

       Size and Weight Specifications

  Table B-2 Size and Weight Specifications 

 

Parameter	Metric	U.S. Equivalent
Dimensions (HxWxD)	482.6mm wide x 400mm high x 450.9mm deep	19 inches wide x 15.75 inches high x 18 inches deep
Chassis weight (empty)	26.33 kilograms	58 pounds
Power supply	2.72 kilograms	6 pounds
Manager modules and line boards	1.22 to 1.59 kilograms	2.7 to 3.5 pounds

       Environmental Specifications

  Table B-3 Environmental Specifications

 

Parameter	Metric	U.S. Equivalent
Operating temperature	5 to 45oC	41 to 113oF
Storage temperature	-40 to 85oC	-40 to 185oF
Operating humidity	20 to 80 percent, noncondensing	20 to 80 percent, noncondensing

       Electrical Specifications

  Table B-4 Electrical Specifications  

 

Parameter	Specification
Input voltage	AC models: Two power units each providing 400W switching with a third providing backup.  DC models: -48VDC.
Power dissipation	80W per slot.  Total power dissipation for a fully loaded PortMaster 4 is 800W1.
Power draw	-50VDC fully loaded chassis draws 18 amps. 100VAC fully loaded chassis draws 9 amps. 200VAC fully loaded chassis draws 4.5 amps.
Memory, manager module	8MB nonvolatile RAM. 16MB dynamic RAM (upgradable to 32MB).
AC fuses	250V, 2 amps.
DC fuses	External to the PortMaster 4.
Cooling, pulling air from front to back	Two 48VDC fans rated at 100CFM at 0 inches of water static pressure.  Two 48VDC fans rated at 50CFM at 0 inches of water static pressure.

  1.  The PortMaster 4 power dissipation exceeds NEBS limits of 27.9W per square foot per foot. Special equipment room cooling might be required.