Arista ARD-1000 Local Host User manual

Page. 1
ARD-1000
VGA & RS-232 over CAT5 Extender with
RGB Dela Control
Model: ARD-1000 Local Host / ARD-1000 Remote Display
User Manual
Copyright 2009 ARISTA. All rights reserved.
All trademarks are the property of their respective owners.

Page. 2
The ARD-1000 VGA & RS-232 over CAT5 Extender with RGB Dela Control has been tested for
conformance to safety regulations and requirements, and has been certified for international use. However,
like all electronic equipments, the ARD 1000 should be used with care. Please read and follow the safety
instructions to protect yourself from possible injury and to minimize the risk of damage to the unit.
Follow all instructions and warnings marked on this unit.
Do not attempt to service this unit yourself, except where explained in this manual.
Provide proper ventilation and air circulation and do not use near water.
Keep objects that might damage the device and assure that the placement of this unit is on a stable
surface.
Use only the power adapter and power cords and connection cables designed for this unit.
Do not use liquid or aerosol cleaners to clean this unit.
Alwa s unplug the power to the device before cleaning.
Performance Guide for VGA over LAN Cable Transmission
Performance rating T pe of LAN cable
Wiring Shielding CAT5 CAT5e CAT6
Unshielded (UTP)   

Page. 3
Shielded (STP)   
Stranded Unshielded (UTP)   
Shielded (STP)   
Termination Please use EIA/TIA-568-B termination (T568B) at any time

Page. 4
With only one cost effective CAT 5e cable, the ARD 1000 lets you extend VGA (WUXGA) to cover the
distance up to 330m (1,000ft). The devices are composed of a transmitter and a receiver. The transmitter
ARD 1000 Local Host is installed near the signal source, and the receiver ARD 1000 Remote Display is placed
near the desired display. With built in EQ and GAIN control, the transmission path can be adjusted to adapt the
cable quality and video bandwidth. Furthermore, the VGA RGB delay control [de skew] function provides the
compensation among R, G, B signals due to long transmission or through normal LAN cable. In order to
extend the control path, ARD 1000 also built RS 232 half duplex long range extender along with VGA video
signals.
Features
Supports up to WUXGA [1920x1200@60] or UXGA [1600x1200@60] to 330m (1,000ft)
Supports RS 232 half duplex
Adjustable equalization and gain control on RX unit
De skew compensation available for RGB delay control
Wall mounting case for better fixedness
Transmission length : 330m [1,000ft] at WUXGA [1920x1200@60] or UXGA [1600x1200@60]

Page. 5
Model Name
ARD
-
1000
Technical
Local Host
Remote Displa
Role of usage
Transmitter [TX]
Receiver [RX]
Video bandwidth
350MHz
Video support
VESA
Transmission WUXGA [1920x1200] — 330m (1,000ft) [CAT5e]
Audio support
No
RS
232 signal type
Half
duplex
& baud rate
Input video signal
1.2 Volts [peak
to
peak]
Equalization
Continuous analog control
RGB delay control
Yes
Loop
out
1 VGA loop
out at TX
ESD protection
[1] Human body model
—
±15kV [air
ga
p discharge] & ±8kV [contact
discharge]
[2] Core chipset — ±8kV
PCB stack up 4 layer board [impedance control — differential 100
Ω
; single 50
Ω
]
Input
1x VGA
1x RS
232
1x RJ 45
Output
1x RJ
45
1x VGA
1x VGA
1x RS 232
VGA connector
HD
15 [15
pin D
sub fem
ale]
RJ
45 connector
WE/SS 8P8C with 2 LED indicators
RS
232 connector
DE
9 [9
pin D
sub female]
Mechanical
Dimensions
[L x W x H]
Model
Package
Carton
Weight
Model
Package
Mounting
Wall Mount / DIN
RAIL Mount
Power supply
5V 2A DC
Power consumption
5 Watts [max]
Operation temperature 0~40
°
C [32~104
°
F]
Storage temperature 20~60
°
C [ 4~140
°
F]
Relative humidity
20~90% RH [no condensation]
Package Contents
ARD
1000 Local Host,
ARD 1000 Remote Display
Two 100~220VAC input / 5VDC@2A output power adapter

Page. 6
ARD-1000 Local ost
Front Panel
1. RS-232 IN:
Connect to a RS-232 signal source
2. VGA OUT:
VGA output to a remote video display
Rear Panel
4. +5V DC:
Power jack: connect to 5V DC power supply
5. VGA OUT:
VGA loop-out to a local VGA display
6. RJ-45 OUT:
Plug in a CAT-5/5e/6 cable that needs to be linked to the RJ-45 connector of the ARD-1000
Remote Display unit
1 2
5 4 6

Page. 7
ARD-1000 Remote Display
Front Panel
1. RS-232 OUT:
Connect to a RS-232 receiving device
2. VGA OUT:
VGA output to a remote VGA display
Rear Panel
3. +5V DC power jack:
Connect to 5V DC power supply
4. RJ-45 IN:
Plug in a CAT-5/5e/6 cable that needs to be linked to the RJ-45 connector of the transmitting
unit CV-927D-TX.
5. EQ:
Rotary control for equalization of R, G, B, respectively
6. GAIN:
Rotary control for gain control of R, G, B, respectively
7. Rotary control:
R=0~2, G=3~5, B=6~7, for de-skew compensation on respective color channel (for RGB
delay control)
8. - :
Push button for decrease a level of de-skew compensation (for RGB delay control)
9. +:
Push button for increase a level of de-skew compensation (for RGB delay control)
1 2
4 3
5
7
6 9
8

Page. 8
1.Connect your VGA and RS-232 source to the transmitting unit.
2.Connect your display and RS-232 receiving device to the receiving unit.
3.Connect your CAT-5/5e/6 cable between the transmitting and receiving units.
4.Make sure your CAT-5/5e/6 cable is tightly connected and not loose.
5.Plug in 5V DC power cord to the power jack of the receiving unit.
6.Plug in 5V DC power cord to the power jack of the transmitting unit.
7.If a blurred video is seen or even worse, not displayed at all, try to adjust the EQ and
Gain rotary controls to improve the cable skew. GAIN rotary controls are designed for
gain control, and EQ rotary controls are designed for equalizing the wave form of the
receiving video signal. It is suggested to begin with adjusting the rotary control of EQ
to get the input video displayed first, and then the GAIN according to the video you
see on the screen.
8.RGB delay control [De-skew] offers the flexible functionality to allow skew
compensation among VGA R, G, B signals due to long transmission or thru low quality
cable. By adjusting the rotary switch to choose R, G or B color channel at first, then
use the push buttons to increase or decrease the delay in the corresponding color
channel. There are totally 31 steps, each step with 2ns difference, for adjusting the
delay between each color individually. Then the graphics quality can be further
assured.
ARD-1000 Local Host ARD-1000 Remote Display
Hardware Installation

Page. 9
CAT-5 cable provides an enormous cost benefit over coax. The average cost of 100 meters of CAT-5
cable is $20 while the average cost of 100 meters of coax cable could easily exceed $240.
Furthermore, wiring is reduced from a bulky bundle of cables to 1 easily pulled cable.
Let us also have a look at the characteristics of CAT-5 type cable before we go deeper on the topic.
Standard CAT-5 cable consists of 4 twisted pairs of AWG 24 cable, which has a characteristic
impedance of 100 ohm. The DC resistance is 10 ohm / 100 m with a capacitance of 4.6nF/100 m.
The figure below demonstrates the losses within CAT-5 cable!
In order to transmit the VGA over CAT-5, differential signal transmission is considered for almost
all of VGA over CAT-5 extenders. Because of the low bandwidth of the cables, the distorted video
and audio on the receiver is inevitable. Appropriate compensations such as equalization and gain
control, and even delay adjustment among component colors are a necessary means in order to get
at least acceptable quality of video and audio.
VGA over CAT5 Extension

Page. 10
Ghosting
Ghosting always occurs horizontally and to the observer’s right following the path of the video
signals. To avoid reflections and maintain integrity of the input video signals over long CAT-5
cables, each stage must be properly terminated.
Common-mode Noise
Common mode noise can cause a loss of synchronization because the sync signals are typically
transmitted common-mode. The example shows loss of horizontal synchronization.
Common Video Problems (Ref. Intersil)