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System specifications - ThinkPad 1721

PHYSICAL SPECIFICATIONS: (1)
ThinkPad i Series 1721 - 14.1-inch 1024 x 768 TFT 5.4 GB HDD with DVD

  • Width: 315.0 mm (12.4 in)
  • Depth: 260.0 mm (10.2 in)
  • Height: 46.7 mm (1.8 in)
  • Weight: 3.6 kg (7.97 lb) (2)

(1) Actual specifications may vary based on features, vendor components, or manufacturing process.
(2) Includes battery and HDD

ELECTRICAL SPECIFICATIONS:

  • Universal AC adapter: 100 to 240 V AC, 1.3 to 0.7 A, 50 to 60 Hz
  • Li-Ion battery pack: 10.8 V, 4.8 AH


HEAT DISSIPATION:

  • 191 Btu/hr maximum


AIR TEMPERATURE FOR SHIPPING AND STORAGE:

  • -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)


ACOUSTIC NOISE LEVEL:
Class 3D (office environment)

  • Sound pressure level (operator position): 40 dB (operating)
  • Sound power level: 5.1 Bels (operating), 4.8 Bels (idling)


NOTE: The noise emission level stated is the declared (upper limit) sound power level, in Bels, for a random sample of machines, typically configured, and operating in idle mode, for example, powered on, but no DASD read/write or other I/O activity. All measurements made in accordance with ANSI S12.10, and reported in conformance with ISO 9296.

OPERATING ENVIRONMENT:
Air temperature: 0 to 8,000 ft

  • Operating: 5 degrees to 35 degrees C (41 degrees to 95 degrees F)(without diskette)
  • Operating: 10 degrees to 35 degrees C (50 degrees to 95 degrees F)(with diskette inside unit)
  • System off: 5 degrees to 43 degrees C (41 degrees to 110 degrees F)
  • Storage/shipment: -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)
  • Wet bulb (maximum): 29.4 degrees C (85 degrees F)


Air temperature: 8,000 to 10,000 ft

  • Operating: 5 degrees to 31.3 degrees C (41 degrees to 88 degrees F)(without diskette)
  • Operating: 10 degrees to 31.3 degrees C (50 degrees to 88 degrees F) (with diskette inside unit)
  • System off: 5 degrees to 43 degrees C (41 degrees to 110 degrees F)
  • Storage/shipment: -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)
  • Wet bulb (maximum): 25.7 degrees C (78 degrees F)


The maximum temperature when the system is on is linearly decreased from 8,000 ft to 10,000 ft.

RELATIVE HUMIDITY:

  • Operating: 8% to 95% (without diskette)
  • Operating: 8% to 80% (with diskette inside unit)
  • Storage/shipment: 5% to 95%


ALTITUDE:

  • 10,000 ft maximum (3,048 m)


AGENCY APPROVALS:
System unit approvals

  • FCC Class-B Certified to comply with FCC Rules, Part 15
  • VCCI CLASS 2
  • UL-1950
  • C-UL C22.2 No. 950
  • NOM
  • CE Mark
  • SASO
  • SMA
  • CCIB
  • BCIQ
  • MOC
  • RFS449
  • CER


SOFTWARE REQUIREMENTS:
The following operating systems support the ThinkPad i Series 1721.

  • Windows(+) 98


(+) Windows is a registered trademark of Microsoft Corporation.


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Document ID : PD001726
Legacy Document ID : LWIK-43TGX2
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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