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OPERATING MANUAL
FOR
XGA AUDIO SWITCHER
Milestone Electronics Pvt. Ltd.
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XGA AUDIO SWITCHER
XGA AUDIO SWITCHER by Milestone is a device that helps
person/s to share computers (or laptops) with single projector and
single monitor, providing simultaneous displays with Audio Output.
Models available
ML 201 XGA AUDIO 2 CPUs with 1 XGA & 1 Audio output
ML 401 XGA AUDIO 4 CPUs with 1 XGA & 1 Audio output
ML 801 XGA AUDIO 8 CPUs with 1 XGA & 1 Audio output
Features
INSTALLATION Easy to install - plug and play kind.
SHARING
2/4/8 CPUs with single projector and single monitor &
stereo audio system.
COMPATIBILITY
Fully compatible to XGA, SXGA & EXGA monitors & PC
stereo audio output.
SELECTION
Channel selectable from
Individual front panel local keypad.
Individual remote keypad (optional).
Remote contact closure.
RS232C interface.
RS422/RS485 interface (optional).
Active PCs selected or scanned in auto/scan mode.
INDICATION LED indication for working set.
STERIO AUDIO
OUTPUT
Normal stereo output.
CABLES
Standard XGA cables for XGA I/P & O/P.
Standard stereo Audio cables (as used with PC ) for
Audio I/P and O/P.
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SPECIFICATIONS
MODEL 201 XGA,
AUDIO
401 XGA,
AUDIO
801 XGA,
AUDIO
INPUT CONNECTORS
D15F (XGA)
3 PIN CAPTIVE
SCREW CONNECTOR
(AUDIO)
2
2
4
4
8
8
OUTPUT CONNECTORS
D15F
3 PIN (AUDIO)
CAPTIVE SCREW
CONNECTOR
1
1
1
1
1
1
LED INDICATION 1 to 2 and PWR 1 to 4 and PWR 1 to 8 and PWR
KEYPAD SELECTION 1 to 2 1 to 4 1 to 8
REMOTE KEYPAD / CONTACT
CLOSURE
D9M 1 D9M 1 D9M 1
RS 232 INTERFACE
D9F 1 D9F 1 D9F 1
OPERATING DISTANCE FROM
REMOTE KEYPAD.
30 M 30 M 30 M
MAINS INPUT (AC) 230 V 230 V 230 V
DIMENSION
TABLE TOP (mm)
RACK TYPE
18513068
----
28813068
----
28813068
----
WEIGHT
1600 gm 1970 gm 2300 gm
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OPERATION
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A. MANUAL MODE
Keep toggle-switch to manual position
Local Keypad
Select the required channel from the front panel keypad.
Remote contact closure/ remote keypad
Rear panel has a D9 male connector, operational at a
distance of 50 meters. Milestone’s remote keypad or any
other remote contact closure can be connected at this
connector.
The connector diagram for D9 male connector is as follows:
D-9 MALE CHANNELS
1 CH1
2 CH2
: :
: :
8 CH8
9 GRD
Note: 1.To select channel 1, short 1and 9 through contact
switch or use Milestone’s remote keypad.
2. For 1602 XGA Audio Unit 2 D9 Pin connectors are
given ; one for 1 to 8 selection and another for 9 to 16
selection
Remote RS232 interface
D9 female connector from rear panel is used for selecting
the switcher through RS232C Interface.
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The pin configuration is
D-9 FEMALE SIGNAL
3 Rx
5 GRD
The simple command used for selecting the channels is
CHANNEL DECIMAL ASCI I
CHANNEL1 1! 31, 21
CHANNEL 2 2! 32, 21
: : :
CHANNEL 8 8! 38, 21
Communication parameters are 9600 baud, no parity, 8-bit
and 1 stop bit.
Whenever any channel is selected there well be a feedback
from the switcher on RS232 port i.e. when channel 1 is
selected, switcher will send 1! on the serial port pin no. 2.
Similarly 2! for channel 2 and so on.
B. SCANNING MODE (AUTO SWITCHING) (Optional)
For scanning mode, keep slide-switch in scan position.
Scanning time for each channel is 5 seconds.
Scan mode operates in two ways: -
Scanning for the activated PCs or laptops only : -
In this mode, scanning will be done for activated PCs only.
This mode can also be used as auto switching mode.
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Scanning of all the PCs or laptops regardless of the
activated PCs:-
Short all the pins of D9 pin male connector designated as
‘SELECT’ (using another D9 Female Connector i.e.1 to 9
pins) at the rear panel. In this mode scanning of all PCs is
done regardless of the PC’s status (ON or OFF)
C. AUTO MODE
For Auto mode, keep slide-switch in Auto position.
Auto mode works on priority basis. First priority is given to
Channel 1, 2nd priority to channel 2 and so on.
For example if Sync signal is detected on channel 2 and
channel 3 simultaneously, only channel 2 will get selected on
priority basis. Channel 3 can be selected only when channel 1
and channel 2 are deactivated.
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