Appearance: Used,some wear and weathering – please see photos.Functionality: WorkingDescription:============As pictured, an IBMPC Expansion Unit model 5161. Includes expansion unit with power supply,extender card, receiver card, and a brand new replacement interface cable. Unitwas tested by placing a VGA card (not included) and system booted fine. Thereceiver card is somewhat temperamental as sometimes it requires a re-seat and/orpower cycle to work.Unit can be upgradedand customized to your needs, please contact us.Manual is availableat: http://www.minuszerodegrees.net/5161/doco/5161_documentation.htmWarranty andReturns:=====================We understand thatthere may be compatibility issues, space constraints, or it just doesn’t lookperfect. This item can be returned within 14-days for ANY reason. However,shipping to and from is not refundable. Shipping:=========- Local pickup isalso available at no cost.- Most orders placedbefore 9am will ship the same day.About Us:=========The ComputerPreservation Group is dedicated to the preservation of historical computers. Tohelp fund ongoing operations, select items are made available. To learn more,please visit our website: www.computerpreservation.com. Thank you for your support!Stock#:5161Description (FromManual):The IBM ExpansionUnit option enhances the system unit byadding expansionslots in a separate unit. This option consists ofan extender card,expansion unit cable, and the expansion unit.The expansion unitcontains a power supply, an expansion board,and a receiver card.This option utilizes one expansion slot in thesystem unit toprovide seven additional expansion slots in theexpansion unit.Expansion Unit CableThe expansion unitcable consists of a 56-wire, foil-shielded cable terminated on each end with a62-pin D-shell male connector. Either end of the expansion unit cable can beplugged into the extender card or the receiver card.Expansion Board~ The expansionboard is a support board that carries the I/O channel signals from the optionadapters and receiver card. These signals, except 'osc,' are carried over theexpansion unit cable. Because 'osc' is not sent over the expansion cable, a14.31818-MHz signal is generated on the expansion board. This signal may not bein phase with the 'osc' signal in the system unit.Decouplingcapacitors provided on the expansion board aid in noise filtering.SpecificationsSize Height 142 mm(5.5 in.) Width 500 mm (19.6 in.) Depth 410 mm (16.1 in.)Weight14.9 kg (33 Ib)Power CableLength 1.83 m (6 ft)Size 18AWGSignal CableLength 1 m (3.28 ft)Size 22AWGPhysicalSpecificationsVoltage (Vac)Nominal MinimumMaximum11090137220/240180259Input RequirementsEnvironmentAir TemperatureSystem On System OffHumidity System OnSystem OffHeat OutputAdditionalSpecificationsFrequency (Hz)+ 3 Hz 6050Current (Amps)Maximum 3 at 90 Vac1.6 at 180 Vac15.6 to 32.2°C (60to 90°F) 10 to 43°C (50 to 110°F)8 to 80% 20 to 80%717 BTU/hr
