Specifications: Dell 1901FP Flat Panel Color Monitor User's Guide

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Specifications: Dell™ 1901FP Flat Panel Color Monitor User's Guide

General Flat Panel Resolution Preset Display Modes Electrical Physical Characteristics Environmental Power Management Modes Pin Assignments Universal Serial Bus (USB) Interface Plug and Play Capability


Model number 1901FP

Flat Panel

Screen type Active matrix - TFT LCD
Screen dimensions 19 inches (19-inch viewable image size)
Preset display area:
376 mm (14.8 inches)
301 mm (11.9 inches)
Pixel pitch 0.294 mm
Viewing angle +/- 85° (vertical) typ, +/- 85° (horizontal) typ
Luminance output 250 CD/m ²(typ)
Contrast ratio 600 to 1 (typ)
Faceplate coating Antiglare with hard-coating 3H
Backlight CCFL (4) edgelight system
Response Time 25ms typical


Horizontal scan range 30 kHz to 80 kHz (automatic)
Vertical scan range 56 Hz to 76 Hz (automatic)
Optimal preset resolution 1280 x 1024 at 60 Hz
Highest preset resolution 1280 x 1024 at 75 Hz
* Highest addressable resolution 1280 x 1024 at 75 Hz
* Addressable means the monitor will sync up to this mode.
However, Dell does not guarantee the image will be sized, shaped and centered correctly.

Dell guarantees image size and centering for all preset modes listed in the following table.

Preset Display Modes

Display Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) Pixel Clock (MHz) Sync Polarity (Horizontal/Vertical)
VESA, 720 x 400 31.5 70.1 28.3 -/+
VESA, 640 x 480 31.5 59.9 25.2 -/-
VESA, 640 x 480 37.5 75.0 31.5 -/-
VESA, 800 x 600 37.9 60.3 49.5 +/+
VESA, 800 x 600 46.9 75.0 49.5 +/+
VESA, 1024 x 768 48.4 60.0 65.0 -/-
VESA, 1024 x 768 60.0 75.0 78.8 +/+
VESA, 1152 x 864 67.5 75.0 108 +/+
VESA, 1280 x 1024 64.0 60.0 135.0 +/+
VESA, 1280 x 1024 80.0 75.0 135.0 +/+


Video input signals Analog RGB, 0.7 Volts +/-5%, positive polarity at 75 ohm input impedance
Digital DVI-D TMDS, 600mV for each differential line, positive polarity at 50 ohm input impedance
Synchronization input signals Separate horizontal and vertical synchronizations, polarity-free TTL level, SOG (SSN on green)
AC input voltage / frequency / current 90 to 264 VAC / 50 or 60 Hz + 3 Hz / 2.0A (Max.)
Inrush current 120V: 42A (Max.)
240V: 100A (Max.)

Physical Characteristics

Connector type 15-pin D-subminiature, blue connector; DVI-D, white connector
Signal cable type Analog: Detachable, D-sub, 15pin, shipped attached to the monitor
Digital: Detachable, DVI-D, Solid pins, shipped detached from the monitor
Dimensions (with stand):
Height (fully extended in portrait mode)
593 mm (23.35 inches)
Height (compressed/locked in landscape mode)
425 mm (16.73 inches)
415 mm (16.34 inches)
232 mm (9.13 inches)
Weight (monitor only) 7.5 Kg (16.52 lb)
Weight (with packaging) 10.04 Kg (22.11 lb)


5° to 35°C (41° to 95°F)
Storage: 0° to 60°C (32° to 140°F)
Shipping: -20° to 60°C(-4° to 140°F)
10% to 80% (noncondensing)
Storage: 5% to 90% (noncondensing)
Shipping: 5% to 90%(noncondensing)
3,657.6m (12,000 ft) max
12,192 m (40,000 ft) max
Thermal dissipation 252.67 BTU/hour (maximum)
187.79 BTU/hour (typical)

Power Management Modes

If you have VESA's DPM™ compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. This is referred to as 'Power Save Mode'*. If input from keyboard, mouse or other input devices is detected by the computer, the monitor will automatically "wake up". The following table shows the power consumption and signaling of this automatic power saving feature:

VESA Modes Horizontal Sync Vertical Sync Video Power Indicator Power Consumption
Normal operation Active Active Active Green <75 W (maximum);
55 W (typical)
Active-off mode Inactive Inactive Blanked Amber Less than 3 W
Switch off
Off Less than 1 W

Note: The OSD will only function in the 'normal operation' mode. Otherwise one of the following messages will appear depending upon the selected input.

1. Analog Input

In Power Save Mode

Press Any Key on Keyboard or Move Mouse


2. Digital Input

In Power Save Mode

Press Any Key on Keyboard or Move Mouse

Activate the computer and 'wake up' the monitor to gain access to the OSD.

This monitor is ENERGY STAR®-compliant as well as TCO '99/ TCO '03 power management compatible.

* Zero power consumption in OFF mode can only be achieved by disconnecting the main cable from the monitor.

ENERGY STAR® is a U.S. registered mark. As an ENERGY STAR® Partner, DELL has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.

Pin Assignments

15-pin D-Sub connector:

Pin Number Monitor Side of the 15-Pin Side Signal Cable
1 Video-Red
2 Video-Green
3 Video-Blue
9 DDC +5V
10 GND
11 GND
12 DDC data
13 H-sync
14 V-sync
15 DDC clock

24 pin digital-only DVI connector:

Note: Pin 1 is at the top right.

Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment
1 T.M.D.S. Data 2- 9 T.M.D.S. Data 1- 17 T.M.D.S. Data 0-
2 T.M.D.S. Data 2+ 10 T.M.D.S. Data 1+ 18 T.M.D.S. Data 0+
3 T.M.D.S. Data 2 Shield 11 T.M.D.S. Data 1 Shield 19 T.M.D.S. Data 0 Shield
4 No Pin 12 No Pin 20 No Pin
5 No Pin 13 No Pin 21 No Pin
6 DDC Clock 14 +5V Power 22 T.M.D.S. Clock Shield
7 DDC Data 15 Ground 23 T.M.D.S. Clock +
8 No Connect 16 Hot Plug Detect 24 T.M.D.S. Clock -

Universal Serial Bus (USB) Interface

This monitor supports High-Speed Certified USB 2.0 interface.*

  Data Rate Power Consumption
High speed 480 Mbps 2.5W (Max., each port)
Full speed 12 Mbps 2.5W (Max., each port)
Low speed 1.5 Mbps 2.5W (Max., each port)

USB ports:

  • 1 upstream - rear
  • 4 downstream - 2 on rear; 2 on left side

*Note: USB 2.0 capability requires 2.0 capable computer 

*Monitor's USB interface works ONLY when monitor is Powered ON (or in Power Save Mode). Switching your monitor OFF and then ON would re-enumerate its USB interface; attached peripherals may take a few seconds to resume normal functionality.

Plug and Play Capability

You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides the computer system with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so the system can configure itself and optimize the monitor settings. If desired, the user can select different settings, but in most cases monitor installation is automatic.

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