Extron DVI DA4 (part number 60-922-01) — a four output single link DVI distribution amplifier in a 1U half-rack metal enclosure.

One DVI source, four identical destinations, with the handshaking handled rather than hoped for. The amplifier routes DDC to the local output so the source can complete EDID negotiation and settle on a valid timing, which is the difference between a display that comes up correctly and one that shows nothing at boot. Automatic input cable equalization sits ahead of the split: it restores and reshapes the incoming DVI stream to strip the jitter that builds up when several active devices share a signal path, and Extron rates it to roughly 100 feet at 1920x1200 with 8-bit colour on DVI Pro cable. Each of the four outputs also supplies +5 VDC at 250 mA for external peripherals.

Key Capabilities

• Four single link DVI-D outputs on female DVI-I connectors from one female DVI-I input.
• DDC routing to the local output for reliable EDID handshaking with the source.
• Maximum bit rate of 4.95 Gbps, 1.65 Gbps per colour, at a 165 MHz pixel clock.
• Automatic input equalization to about 100 feet with Extron DVI Pro cable at 1920x1200 8-bit.
• +5 VDC at 250 mA on each output for peripheral powering.
• External universal supply, 100 to 240 VAC in, 12 VDC 0.5 A 6 W regulated out.

Where It Is Used

Any installation with a fully digital DVI signal path and several destinations: classroom and lecture hall projector plus panel combinations, control positions duplicated across an operator row, imaging and laboratory review stations, and rack builds distributing a single high-resolution feed to four locations.

Specifications at a Glance

• I/O: 1 female DVI-I in, 4 female DVI-I out
• Rate: 4.95 Gbps maximum, 165 MHz pixel clock
• Resolution: up to 1920x1200 or 1080p at 60 Hz
• Enclosure: metal, 1.75" H x 8.75" W x 3.0" D, 2.8 lbs
• Warranty: 3 years product, 7 years Everlast power supply

Also referenced as Extron DVIDA4, DVI-DA4, part number 6092201.