CGA/EGA

CGA - 320 x 200, 15.7 kHz, 60 Hz
EGA - 640 x 350, 15.7/21.8 kHz, 60 Hz

pin 1 - Gnd		pin 4 - Green		pin 7 - Blue Int
pin 2 - Gnd/Red Int		pin 5 - Blue		pin 8 - H. Sync
pin 3 - Red		pin 6 - Green Int		pin 9 - V. Sync

CGA/EGA uses a digital signal, referred to as TTL (Transistor-Transistor Logic), for the transmission of its video signal. TTL is a signal that operates in an on or off state only, thus limiting the amount of displayable colors. Intensity bits are used to expand available colors up to four times the original amount. Commonly used in low resolution computers.
Signal Type: TTL

ECL

Sun & Apollo Mono (Black & White Workstations)

pin 1 - ECL Video		pin 4 - V Sync		pin 7- ECL Video Ret
pin 2 - ECL Video Ret		pin 5 - 5 Volts		pin 8 - Sync Return
pin 3 - H Sync		pin 6 - ECL Video		pin 9 - 5V Return

ECL (Emitter Coupled Logic) uses a high speed digital signal. It is commonly found in high to extremely high resolution computers where the displays are generally monochrome.
Signal type: ECL

Mac II/Quadra/PowerMac

640 x 480 to 1152 x 870
35-68 kHz, 66.7-70 Hz

pin 1 - Red Gnd pin 2 - Red pin 3 - C. Sync pin 4 - Sense 0 pin 5 - Green

pin 6 - Green Gnd pin 7 - Sense 1 pin 8 - N/C pin 9 - Blue pin 10 - Sense 2

pin 11 - C/V Grd pin 12 - V Sync pin 13 - Blue Gnd pin 14 - H Gnd pin 15 - H Sync

Use of analog video signals allows for unlimited colors to be produced. Macintosh graphic cards are unique in a couple of different regards. First, the variety of sync formats. In the past, sync has been available three different ways, and in some cases all from one card. Those formats are RGsB, RGBS, and RGBHV. Macintosh graphic cards also offer multiple line rates and resolutions. These rates and resolutions are determined at boot up by the manner in which the sense lines (ID Bits) are terminated within the local monitor.
Signal Type: analog

Apple II-				560 x 192				15.7 kHz, 60 Hz
Mac 12"-				512 x 384				24.5 kHz, 60 Hz
Mac 13"-				640 x 480				35.0 kHz, 60 Hz
Mac 14"-				640 x 480				35.0 kHz, 67 Hz
E-Mac-				832 x 624				44.9 kHz, 67 Hz
Super Mac-				1024 x 768				48.0 kHz, 60 Hz
Radius-				1024 x 768				48.0 kHz, 60 Hz
Mac 16"-				832 x 624				49.7 kHz, 75 Hz
Mac 19"-				1024 x 768				60.2 kHz, 75 Hz
Mac 21"-				1152 x 870				68.7 kHz, 75 Hz

VGA

pin 1 - Red pin 2 - Green pin 3 - Blue pin 4 - ID Bit pin 5 - N/C

pin 6 - Red Ret. pin 7 - Green Ret. pin 8 - Blue Ret. pin 9 - No Pin pin 10 - Gnd

pin 11 - ID Bit pin 12 - ID Bit pin 13 - H Sync pin 14 - V Sync pin 15 - ID Bit

In 1987 IBM developed VGA as one of the first computer video types to use analog signals. The ability to display sharper images with high color depth is something that, even today, is being constantly expanded upon.
Signal Type: analog

(IBM) XGA/XGA-2

pin 1 - Red pin 2 - Green pin 3 - Blue pin 4 - ID Bit 2 pin 5 - Self Test

pin 6 - Red Ret. pin 7 - Green Ret. pin 8 - Blue Ret. pin 9 - No Pin pin 10 - Gnd

pin 11 - ID Bit 0 pin 12 - ID Bit 1 pin 13 - H Sync pin 14 - V Sync pin 15 - ID Bit 3

IBM developed XGA/XGA-2 (Extended Graphics Array) to provide a means to offer higher frequencies and resolutions in the "VGA" domain. These standards utilize software and ID bit termination to achieve these changes.

VGA/XGA 1-			640 x 350			31.5 kHz, 70 Hz
VGA/XGA 2-			640 x 400			31.5 kHz, 70 Hz
VGA/XGA 3-			640 x 480			31.5 kHz, 60 Hz
VGA/XGA 4-			1024 x 768			35.5 kHz, 87/43 Hz (Interlaced)
VGA/XGA 5-			1024 x 768			57.0 kHz, 70 Hz
VGA/XGA 6-			1024 x 768			61.1 kHz, 75.8 Hz
Custom VGA*			Up to 1600 x 1200			31-117 kHz, 60-110 Hz

*Many graphic card manufacturers offer super high resolution modes that are not necessarily a standard (like XGA or VESA). Thus, a customer running one of these non-standard modes can be displaying a graphics resolution up to 1600 x 1200 at 117 kHz (horizontal).
Signal Type: analog

VESA

pin 1 - Red pin 2 - Green pin 3 - Blue pin 4 - ID Bit pin 5 - N/C

pin 6 - Red Ret. pin 7 - Green Ret. pin 8 - Blue Ret. pin 9 - No Pin pin 10 - Gnd

pin 11 - ID Bit pin 12 - ID Bit pin 13 - H Sync pin 14 - V Sync pin 15 - N/C

VESA is a standards committee that was adopted in 1988 to create a better standard than IBM's VGA version. VESA has offered more variety in video resolutions and it is still adopting more standards each year. To date, VESA has adopted standards that rang from standard VGA (at 640 x 480) to super high resolution graphics (1600 x 1200 at 106 kHz). Most VESA graphics cards are capable of switching resolutions "on-the-fly" if you are using Windows 95®, 98®, 2000® or through the set-up menu if you're using Windows® 3.1. For more on VESA, visit www.vesa.org

VGA		640 x 480
SVGA		800 x 600
XGA		1024 x 768
SXGA		1280 x 1024
UXGA		1600 x 1200

Signal Type: analog

13W3-IBM PowerPC

pin A1 - Red/R-Gnd pin A2 - Green/G-Gnd pin A3 - Blue/B-Gnd pin 1 - ID Bit 2 pin 2 - ID Bit 3

pin 3 - Self Test pin 4 - Digital Gnd pin 5 - H Sync pin 6 - ID Bit 0 pin 7 - ID Bit 1

pin 8 - N/C pin 9 - V Sync pin 10 - Digital Gnd

Some versions of the IBM PowerPC computer come equipped with a 13W3 video connector. This connector is utilized to maintain the signal integrity at the high frequencies at which this computer is capable of operating. Maximum resolution: 1600 x 1200.
Signal Type: analog

13W3-Sun Color

pin A1 - Red/R-Gnd pin A2 - Green/G-Gnd pin A3 - Blue/B-Gnd pin 1 - N/C pin 2 - N/C

pin 3 - Sense 2 pin 4 - Sense Ret. pin 5 - C-Sync pin 6 - N/C pin 7 - N/C

pin 8 - Sense 1 pin 9 - Sense 0 pin 10 - C-Sync Ret.

Sun manufactures high end computers that are capable of very high resolutions. They are able to output these various resolutions from the same card, this is determined at boot up by the manner in which sense lines (ID Bits) are terminated within the local monitor.
Signal Type: analog

13W3-SGI (Silicon Graphics)

pin A1 - Red/R-Gnd pin A2 - Green/G-Gnd pin A3 - Blue/B-Gnd pin 1 - Monitor Type 3 pin 2 - Monitor Type 0

pin 3 - C -Sync pin 4 - H Drive pin 5- V drive pin 6 - Monitor Type 1 pin 7 - Monitor Type 2

pin 8 - Digital Gnd pin 9 - Digital Gnd pin 10 - Sync 2

Silicon Graphics manufacturers high end computers that are used in graphic rendering and CAD/CAM applications. This computer generally operates at two different frequencies (48 kHz and 64 kHz), which is determined upon boot up. This computer type outputs sync RsGsBs, RGsB, RGBS and RGBHV.
Signal Type: analog

Enhanced Video Connector (EVC)

pin 1 - Audio Output, Right pin 2 - Audio Output, Left pin 3 - Audio Output, Return pin 4 - Sync return pin 5 - Horizontal Sync (TTL) pin 6 - Vertical Sync (TTL) pin 7 - reserved pin 8* - reserved pin 9 - 1394 pair A, data - pin 10 - 1394 pair A, data + pin 11 - Charging power input, (+) pin 12 - Charging power input, (-) pin 13 - Video input Y or Composite in pin 14 - Video input, return pin 15 - Video input, C in pin 16 - USB data (+) pin 17 - USB data (-) pin 18* - USB/1394 common mode shield		pin 19 - 1394 Vg pin 20 - 1394 Vp pin 21 - Audio Input, Left pin 22 - Audio Input, Right pin 23 - Audio Input, Return pin 24 - Stereo Sync (TTL) pin 25 - DDC Return pin 26 - DDC data (SDA) pin 27 - DDC clock (SCL) pin 28* - +5 VDC pin 29 - 1394 pair B, clock (+) pin 30 - 1394 pair B, clock (-) pin C1 - Red video out pin C2 - Green video out pin C3 - Pixel clock out pin C4 - Blue video out pin C5 - Video/pixel clock return
* Pins 8, 18 and 28 are recessed in the cable end connector (plug) to provide for proper power/ground sequencing.

The EVC connector is a combination analog and digital connector designed to carry VGA/RGB, FireWire, audio, and USB signals. The EVC connector is essentially the same as the DVI connector, except it carries different signals. It was designed to simplify computer-monitor connections and to carry video signals with a greater bandwidth that is possible with a VGA connector.
Signal Type: analog and digital

Digital Visual Interface (DVI)

pin 1 - TMDS Data 2- pin 2 - TMDS Data 2+ pin 3 - TMDS Data 2/4 Shield pin 4 - TMDS Data 4- pin 5 - TMDS Data 4+ pin 6 - DDC Clock pin 7 - DDC Data pin 8 - Analog Vertical Sync pin 9 - TMDS Data 1- pin 10 - TMDS Data 1+ pin 11 - TMDS Data 1/3 Shield

pin 12 - TMDS Data 3- pin 13 - TMDS Data 3+ pin 14 - +5 V Power pin 15 - Ground (+5 V, Analog H/V Sync) pin 16 - Hot Plug Detect pin 17 - TMDS Data 0- pin 18 - TMDS Data 0+ pin 19 - TMDS Data 0/5 Shield pin 20 - TMDS Data 5- pin 21 - TMDS Data 5+

pin 22 - TMDS Clock Shield pin 23 - TMDS Clock+ pin 24 - TMDS Clock- pin C1 - Analog Red Video Out pin C2 - Analog Green Video Out pin C3 - Analog Blue Video Out pin C4 - Analog Horizontal Sync pin C5 - Analog Common Ground Return (R, G, B Video Out)

DVI was developed by the Digital Display Working Group (DDWG). It carries the same type of signal as the DFP connector; however, the connector is not the same physically or in terms of pin out. The DVI connector comes in two forms, as DVI-D (Digital), a 24-pin version, or as a DVI-I (Integrated) 29-pin version. The 29-pin version allows an analog signal to also be carried.
Signal Type: analog and digital

Digital Flat Panel (DFP)

pin 1 - TX Data 1+ pin 2 - TX Data 1- pin 3 - Shield 1 pin 4 - Shield Clock pin 5 - TX Clock + pin 6 - TX Clock - pin 7 - Logic Ground

pin 8 - Logic +5VDC pin 9 - NC pin 10 - NC pin 11 - TX Data 2+ pin 12 - TX Data 2- pin 13 - Shield 2 pin 14 - Shield 0

pin 15 - TX Data 0+ pin 16 - TX Data 0- pin 17 - NC pin 18 - Hot Plug Detect pin 19 - DDC2B Data pin 20 - DDC2B Clock

The DFP connector is a 20 pin connector. It and the DVI connector carry the same type of digital signal (TMDS. Transition Minimized Differential Signaling). The DFP connector was created before the DVI, by VESA, and is only designed to carry digital video, so there is no provision to carry analog.
Signal Type: digital