Digital Signal Conditioning

Although DVI signals are digital in nature, they are subject to loss when transmitted on standard DVI cables, due to the inherent properties of the cable and the connectors. The proper “shape” of the three TMDS channels – also known as the “eye” pattern, as well as their timing to the clock channel, are critical in ensuring proper DVI image display. Losses in these channels will result in “sparkles” on-screen, or a complete loss of the im- age. They are attributable to long cable lengths, poor quality cables and terminations, and even certain source devices which output substandard DVI signals.

The DVI 201xi Tx features Automatic Input Equalization, which actively conditions incoming DVI signals, applying equalization to help reshape and restore TMDS channels to proper levels. The clock channel is also regenerated to provide proper TMDS channel alignment. As shown below, a compromised source-generated DVI signal is significantly improved when passed through the DVI 201xi Tx and subsequently transmitted to a DVI 201 Rx Twisted Pair Receiver. Automatic Input Equalization reshapes and restores the “eye” patterns to ensure high quality images at the display.

Without Automatic Input Equalization

With Automatic Input Equalization

Direct DVI output from a source device at 1600 x1200. Signal quality is poor, and the "eye" pattern is significantly distorted.

The same DVI output is transmitted 100 ft (30 m) over CAT 5 cable using the DVI 201xi Tx and DVI 201 Rx. The "eye" pattern is fully restored.

specifications

Video

Maximum data rate	.10 Gbps (3.3 Gbps per color)
Maximum pixel clock	.165 MHz
Resolution range	.Up to 1920x1200 @ 60 Hz
Formats	.RGB and YCbCr digital video
Standards	.DVI 1.0, HDMI 1.2

Video input and loop through — transmitter

Number/signal type	.1 single link DVI-D input
Connectors	1 single link DVI-D local loop-through
Connectors	.2 DVI-I female (1 for input, 1 for loop-through)

Interconnection between transmitter and receiver

Connectors	.(2) RJ-45 per unit for 2 CAT 5/5e/6/7 UTP or STP
	(shielded twisted pair) cables connecting the
Signal transmission distance	transmitter and receiver
Signal transmission distance
1080p or 1900x1200 @ 60 Hz
CAT 5/5e/6/7 STP
(shielded twisted pair) cable	.Up to 125' (38 m)
CAT 5/5e/6 UTP cable	.100' (30 m)

NOTE: The transmission distance varies greatly depending on the signal resolution and on the type of cable, graphics card, and display used in the system.

Control/remote — external device (pass-through)

Serial control port input	.RS-232 via (1) 3.5 mm, 3 pole captive screw
	connector

General

External power supply		.100 VAC to 240 VAC, 50-60 Hz, 6 W max.,
Power input requirements		external; to 12 VDC, 2 A, regulated
		.12 VDC, 0.4 A for both transmitter and receiver
Temperature/humidity		.Storage: -40 to +158˚F (-40 to +70˚C) / 10% to
		90%, noncondensing
		Operating: +32 to +122˚F (0 to +50˚C) / 10% to
Cooling		90%, noncondensing
		.Convection, no vents
Mounting
Rack mount		.Yes, with optional 1U, rack shelf
Enclosure type		.Metal
Enclosure dimensions		.1.75" H x 8.75" W x 3.0" D (1U high, half rack
		wide)
		(4.4 cm H x 22.2 cm W x 7.6 cm D)
Product weight		(Depth excludes connectors.)
		.0.6 lbs (0.3 kg)
Shipping weight		.2 lbs (1 kg)
Vibration		.ISTA 1A in carton (International Safe Transit
Regulatory compliance		Association)

Safety		.CE, CUL, UL
EMI/EMC		.CE, C-tick, FCC Class A**, ICES, VCCI
MTBF		.30,000 hours
Warranty		.3 years parts and labor
NOTE: **FCC testing is conducted with STP (shielded twisted pair) cable.
NOTE: All nominal levels are at ±10%.
Model	Version Description		Part number
DVI 201xi Tx	DVI Twisted Pair Transmitter		60-1013-12
DVI 201 Rx	Receiver		60-734-13
DVI 201 A D Rx	Receiver - Black		60-865-22
DVI 201 A D Rx	Receiver - White		60-865-23

Specifications are subject to change without notice.