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Cisco MGX 8850 Multiservice Switch Installation and Configuration
Release 1.1.31, Part Number 78-11223-03 Rev. B0, May 2005
Appendix A System Specifications
Physical and Electrical Characteristics for the Enclosure
Table A-1 Enclosure and Electrical Characteristics
Item Value
Card Slot Capacity Supports combinations of full and single-height service modules.
Two double-height slots reserved for PXMs.
Up to 28 single-height slots for service modules or up to 14
double-height slots for service modules.
Enclosure Size,
AC-powered system:
DC-powered system:
Height: 33.25 inches (45.5 cm).
Width: 17.75 inches (45.08 cm) for all enclosure modules, so the
rack must have this minimal, inner width. If a 19-inch rack cannot
provide it, use a 23-inch rack.
Depth: 27.0 inches (68.6 cm).
Height: 28 inches (71.1 cm.).
Width: 17.75 inches (45.08 cm) for all enclosure modules, so the
rack must have this minimal, inner width. If a 19-inch rack cannot
provide it, use a 23-inch rack.
Depth: 27.0 inches (68.6 cm) with cable manager, 21.5 inches
(54.6 cm) without cable manager.
Shipping Weight for
Populated Enclosure
DC: 190 lb (87 Kgs) with 2 DC PEMs.
AC: 230 lb (104.5 Kgs).
Shipping Weight for
Individual Components
Single-height, front and back cards: 2.48 lb (1.13 Kgs)
Double-height, front and back cards: 6.0 lb (2.73 Kgs)
Card cage with boards: 160 lb (72.73 Kgs)
Exhaust plenum: 8 lb
Fan tray: 9.5 lb
Inlet plenum: 8 lb
AC power tray with power supplies: 45 lb
Clearance Requirement
for the Enclosure
Minimum 30 inches front and rear; nominal 12-inch side clearance.
Power Input Voltage AC system: Normal operating range is 200–240 VAC, 47 to 63 Hz.
The maximum voltage range is 180–264 VAC.
DC system: –42 to –56 VDC.
Each AC supply can provide up to 1200W.
Current Requirements,
AC System
Configuration-dependent: use Network Design Tool for exact
requirements. For general planning purposes: 14.4A at a nominal
voltage of 200 VAC. At the minimum voltage limit of 180 VAC, the
current draw is a maximum of 16A.
Current Requirements,
DC System
Configuration-dependent: use the Network Design Tool for exact
requirements. For general planning purposes: 43.2A at nominal –48
VDC; 49.4A at –42 VDC maximum.
Input AC Power
Connector
IEC 16A input connector. For a list of the AC power plugs for
domestic and international use, see Appendix B, “AC Power
Cabling” section on page B-8
DC Input Connections Three-position terminal block for 6 AWG wire (10 square
millimeters) and #10 screw lugs designed for 6 AWG wire.