9-pin D-sub
The EGA [Enhanced Graphics Adapter]: Interface bus uses a 9-pin D-sub connector. This EGA standard [1984] offered improved resolutions and more colors than CGA. EGA allowed graphical output up to 16 colors (chosen from a palette of 64) at screen resolutions of 640x350, or 80x25 text with 16 colors, all at a refresh rate of 60 Hz. The monitors have a digital interface. The table below provides the pinout and signal names for the DFP connector. A listing on OEM D-sub connector manufacturers may be found on this D-Subminiature Connectors page.
| Pin # | Signal Name | Pin Description | Pin # | Signal Name | Pin Description |
|---|---|---|---|---|---|
| 1 | GND | Ground | 6 | SG/I | Secondary Green / Intensity |
| 2 | SR | Secondary Red | 7 | SB | Secondary Blue |
| 3 | PR | Primary Red | 8 | H | Horizontal Sync |
| 4 | PG | Primary Green | 9 | V | Vertical Sync |
| 5 | PB | Primary Blue | - | - | - |
The EGA interface is obsolete and should not be used for new designs.
Refer back to the main PC Video Monitor Bus
page, or to the main PC Interface Bus page for a
possible upgrade solution.
Use the Buses icon at the bottom of the
page to reach the top level index for all bus types.
The
Equipment icon at the bottom of the page to reach manufacturers of
PC Monitors.
Or a
Listing of Component Manufacturers [alphabetic listing].
Electronic Design Key words: EGA bus, Enhanced Graphics Adapter, Video Interfaces, Pinouts, Pinout, Pin Outs, Interface Connector, Signal Names, Computer Bus, Monitor, Display, Physical Interface, Connector, Personal Computer, PC, Monitor, Description, Display, Obsolete, Out-dated interface.
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