Atlona AT-PC81A User manual

AtlonA
8x1 VGA + Analog Audio Switcher
MODEL: AT-PC81A
User’s Manual
Rev.1004

TABLE OF CONTENTS
1. Introduction ....................................................................... 1
2. Features ....................................................................... 2
3. Package Contents ....................................................................... 3
4. Specifications ....................................................................... 4
5. Panel Description ....................................................................... 5
6. Channel Control ....................................................................... 6
7. Pin Definition ....................................................................... 10
8. Safety Information ..................................................................... 11
9. Warranty ...................................................................... 12
10. Atlona Product Registration .................................................................. 13

1
INTRODUCTION
Atlona Technologies AT-PC81A is a high performance VGA switcher with remote. Simply pressing
a button on the remote you can select your desired VGA source to be routed to a display. Switcher
is tested to guarantee resolution up to 1920 x 1200 or 1080p without signal degradation. Atlona
AT-PC81A is also equipped with analog audio connections to transfer audio signal from either
source to a display or audio receiver.
Diagram:
VGA DISPLAY
AT-PC81A
SOURCE 1
SOURCE 3
SOURCE 7 SOURCE 5
SOURCE 8
SOURCE 4 SOURCE 2
SOURCE 6
RS-232

2
FEATURES
LED indicators, tells you which input is currently active
IR remote control
Supports high resolution input:
PC: VGA, SVGA, XGA, SXGA, UXGA (1600x1200) and WUXGA (1920x1200), &
HDTV: 480i, 576i, 480p, 576p, 720p, 1080i and 1080p.
Bandwidth: 350MHz.
Plug and play, easy to install and operate.
Built-in advance circuit ensures a smooth transition when switching from one PC/HD source
into another.
RS-232 interface allows control from a distant device.
Audio format: L/R analog.
Rack mountable

3
PACKAGE CONTENTS
1x AT-PC81A unit
1x IR remote control
1x Installation CD
2x Rack-mounting ear
1x 5V DC power supply unit
1x User's manual

4
SPECIFICATIONS
Model Name AT-PC81A
Technical
Role of usage 8x1 switcher
Supported input/output VGA / Component / S-video / Composite*
Video bandwidth 350MHz
Video support 1080p60, WUXGA [1920x1200@60] & UXGA [1600x1200@60] or higher
Transmission Full HD 1080p, WUXGA 1920x1200, UXGA 1600x1200 – 65m [210ft]
Audio support Analog stereo
Input 8x VGA [component/s-video/composite via adapters]*
8x 3.5mm analog stereo audio
1x RS-232
Output 1x VGA [component/s-video/composite via adapters]*
1x 3.5mm analog stereo audio
VGA connector HD-15 [15-pin D-sub female]
RS-232 connector DE-9 [9-pin D-sub female]
3.5mm connector Earphone jack for analog stereo audio
Input selection IR remote control / push button control / RS-232 control
IR remote control Electro-optical characteristics: τ= 25°/ Carrier frequency: 36-40kHz
Mechanical
Housing Metal enclosure
Dimensions
[L x W x H] Model 1RU – 440 x 66 x 44mm (1’5" x 2.6" x 1.7")
Package 545 x 230 x 110mm (1'10" x 9" x 4")
Weight Model 1.1kg (2.4 lbs)
Package 2.3kg (5.1 lbs)
Fixedness 1RU rack-mount with ears
Power supply 5V 4A DC
Power consumption 13 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)
Note:
*Component and composite inputs/outputs can be done by using VGA-to-component breakout
cables to connect to the VGA sockets. For S-Video inputs/outputs, please find a VGA-to-S-
video adapter to connect to the VGA sockets.

5
PANEL DESCRIPTION
Front Panel
1. Push button for input switch from channel 1 to channel 8 in sequential order
2. Infrared sensor for receiving commands from the IR remote contorl
3. Power indicator
4. VGA input #1 −#8 indicator shows currently chosen input channel
Rear Panel
5. RS-232 control port for software serial control
6. 3.5mm audio socket for connecting to audio source #1 −#8
7. 3.5mm audio socket for selected audio output
8. VGA input channels for connecting to VGA source #1 −#8
9. Selected VGA output to a VGA display
10. +5V DC power jack: Connect to a +5V power supply unit
1 2
3 4
98
76
5
10

6
Method A: IR remote control
AUTO DETECT function is used for checking input signal existed or not. Enable this function will
make the output port switching to the next available input in sequential order when the currently
selected input signal is lost. Disable this function will make the AT-PC81A stay at the the currently
selected input even if the input signal is lost.
Key Code Function
0x03 Turn on/off AT-PC-81A
0x02 Switch from the selected input to the next input channel
0x01 Switch from the selected input back to the prior input channel
0x04 Select INPUT 1 to be the input source
0x05 Select INPUT 2 to be the input source
0x06 Select INPUT 3 to be the input source
0x07 Select INPUT 4 to be the input source
0x08 Select INPUT 5 to be the input source
0x09 Select INPUT 6 to be the input source
0x0a Select INPUT 7 to be the input source
0x1b Select INPUT 8 to be the input source
0x1f Reserved
0x0c Turn on/off AUTO DETECT which allows the input source can be automatically changed once the selected input is
disconnected
0x0d Reserved
0x0e Reserved
CHANNEL CONTROL

7
Method B: Software Control via RS-232 serial port
1. Click here for PC to connect to AT-PC81A.
2. Click one of the eight channel buttons to choose the desired VGA input source
*RS-232 transmission format:
Baud rate: 9600 bps
Data bit: 8 bits
Parity: None
ASCII Command Mode
Command ACK Function
VR V2.01a Read Version
I1
Select INPUT 1 to be the input source
I2
Select INPUT 2 to be the input source
I3
Select INPUT 3 to be the input source
I4
Select INPUT 4 to be the input source
I5
Select INPUT 5 to be the input source
I6
Select INPUT 6 to be the input source
I7
Select INPUT 7 to be the input source
I8
Select INPUT 8 to be the input source
1
2

8
Serial String Mode
First byte Transmission data amount (from 1st byte to last byte)
0x53 Check code
0x57 Check code
0x90 Check code
0x08 Check code
0xff *Machine number
0x01 Command ID
….. Command parameters
Last byte Check sum (add from first byte to command parameters)
(a) Set Command:
Command Code Response Function
DATA *Check Sum ACK SET
0x09 0x53 0x57 0x90 0x08 0xff 0x02
*0x01~0x08 *0x4d~0x54 0xaa
Select input source
0x09: Command length
0x53 0x57 0x90 0x08: Check code
0xff :Machine number
0x02: Command ID
0x01~0x08: Selected input on AT-PC81A
0x4d~0x54: Check sum
ACK
0xaa: Header
0x09 0x53 0x57 0x90 0x08 0xff 0x07
0x01 0x52 0xaa
Set auto detect function
0x09: Command length
0x53 0x57 0x90 0x08: Check code
0xff :Machine number
0x07: Command ID
0x01/0x00: Enable/disable auto detect function
0x52: Check sum
ACK
0xaa: Header