Specifications
VGA connector pin-9 - If your equipment/application requires that the pin-9 signal of the selected input be
passed to output connector pin-9, it will be necessary to add (solder) jumpers (JMP1 = Input 1, JMP2 = Input
2, etc.) onto the inside of the rear panel (see Figure 5-A). Each jumper consists of 2 etch/solder pads
separated by approximately 1/16th inch gap. Connect (solder a wire across) the 2 pads for the desired input/
jumper (example: for Input 1, connect the JMP1 solder pads). Pin-9 pass through may be enabled for as
many inputs as desired. To access the inside of the rear panel, DISCONNECT POWER and remove four
screws from the top of the switcher. The bottom panel can then be removed. Unplug the three cables
connected to the video circuit card enabling it to be removed.
User’s Guide
JMP3
JMP4
JMP5
JMP6
JMP1
JMP2
FIGURE 5-A
Specifications
Video
Input Video Signal Level .. 0.5 to 2 volts p-p
Video Gain .. Unity
Frequency Range (H. Sync) .. 15-145 kHz
Frequency Range (V. Sync) .. 30-170 Hz
RGB Video Bandwidth .. 350 MHz (-3 dB)
Input Impedance .. 75 Ohms
Output Impedance .. 75 Ohms
TerminationImpedance .. 75 Ohms
Sync Input Impedance .. 510 Ohms
Connectors - Input and Output VGA .. 15 pin HD D-Sub (Female)
Audio
Input
Type .. 6 Inputs, Stereo, Balanced or Unbalanced
Connectors .. 3.5mm Captive screw terminal, 5 conductor
Maximum Level .. 19.5 dBu
Impedance Balanced/Unbalanced .. 25 kohms/50 kohms (DC coupled)
Gain Adjustment .. –15.0 dB to +9.0 dB, adjustable per input
Throughput
Response .. .05 dB 20 Hz to 20 kHz
Maximum Channel Gain .. 15.0 dB (Input gain @ max., Balanced, Output)
Output
Type .. 1 Output, Stereo, Balanced or Unbalanced
Connector .. 3.5mm Captive screw terminal, 5 conductor
Impedance .. 50 Ohms unbalanced, 100 ohms balanced
Gain .. Unbalanced: 0 dB, Balanced: +6 dB
General
Operation Temperature .. 0° to +50° C
Storage Temperature .. –40° to +70° C
Humidity .. 10% to 90% non-condensing
MTBF Demonstrated .. 30,000 Hours
Vibration .. NSTA 1A in carton
Approvals .. CE, UL Listed, FCC Class A
Power Supply .. 100-240 VAC 50/60 Hz, 0.3A max.
.. Internal auto-switchable
Dimensions .. 1.75" H x 17.4" W x 9.5" D
.. 4.45cm H x 44.1cm W x 24.13cm D
Shipping Weight .. 8 lbs. (3.6 kg)
Warranty .. 3 years parts and labor
Part Numbers
SW6 VGA Audio Switcher .. 60-260-01
IR-20 Infrared Remote Control .. 70-036-02
3.5mm Captive screw connector .. 10-319-01
19" 1U Universal Rack Shelf .. 60-190-01
SW6 VGA Audio
—
6-Input, 1-Output VGA
QXGA and Stereo Audio Switcher
VGA/MAC Adapter (Composite Sync) .. 26-340-01
VGA/MAC HV Adapter (Mac H/V sync) .. 26-340-02
Refer to the safety instructions
in the literature that came with
this equipment.
68-377-01 Rev. D
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
USA
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort
The Netherlands
Extron Electronics, Asia
135 Joo Seng Road, #04-01
PM Industrial Building
Singapore 368363
Extron Electronics, Japan
Kyodo Building
16 Ichibancho
Chiyoda-ku, Tokyo 102-0082 Japan
+81.3.3511.7655
06 06
714.491.1500
+31.33.453.4040
+65.6383.4400
Fax 714.491.1517
Fax +31.33.453.4050
Fax +65.6383.4664
Fax +81.3.3511.7656
© 2006 Extron Electronics. All rights reserved.
RS-232 Command/Response Table
Audio Level
RS-232 COMMAND/RESPONSE TABLE
Audio Level Control
ASCII to HEX Conversion Table
ABBREVIATIONS & DEFINITIONS:
The Audio Level Setting (Gain) for each input can be viewed,
changed and saved in memory using the switcher front panel
buttons or with RS-232 commands. The setting range is
–15 dB to +9 dB. To view or change the Audio level using the
front panel buttons, the Switcher AUDIO LED must be blinking. This is controlled by the AUDIO button. To
view or change the audio setting, first select the desired input, then press and hold the AUDIO button until
the AUDIO LED (above the AUDIO button) begins blinking. The current memory Audio Level Setting for the
selected input will be displayed in the input select LEDs (1-5). Each LED can display four possible values as
shown below.
•
= CR/LF, · = SPACE, A = AUDIO, AUTO = AUTOSWITCH,
C = CHANNEL-AUDIO & VIDEO, F = MODE, V = VIDEO,
M = MAXIMUM INPUTS, QVER = SOFTWARE VERSION
X1 =
Ø
– 6 (INPUT
Ø
= MUTED OUTPUT)
X2 = SOFTWARE VERSION X.XX
X3 = NUMERICAL VALUE –15 TO +9
X4 =
Ø
TO 15 (16 STEPS + OR –)
X5 = MODE - 1 = FRONT PANEL, 2 = AUTO
X6 = 6 (TOTAL # OF INPUTS)
COMMAND RESPONSE
The sum of the values represented by the five LEDs is the Audio Level setting for the selected input. The
+dB and/or the –dB LED will be ON to indicate the polarity of the Audio Level setting. Both LEDs ON
indicates a setting of zero (0). Examples using the LED symbols shown above follow:
Command Description
Select input channel X1Audio only
Example: Select Input channel #2 audio
ASCII
to Host
X1$
A X1
2$
A2
Select input channel X1 Video only
Example: Select Input channel #5 video
X1&
5&
V X1
V5
Select input channel X1 Audio and Video
Example: Select Input channel #6 A & V
X1 !
6!
C X1
C6
Set channel X1 positive audio gain to X4
Example: Set Input 2 Audio Gain = +7
X1* X4 G
2*7G
IN X1·AUD= X3
IN2·AUD=+7
In Example 1 above, the AUDIO LED is blinking indicating that LEDs 1-5 represent the audio level setting for
the selected input. Input 1-5 LEDs are ON, each has a value of 3. The –dB LED is ON indicating a negative
setting. The Audio level setting for the selected input is –15 dB (5 x 3 = 15).
Set channel X1 attenuation to X4
Example: Set Input 3 Audio Gain = –13
X1* X4 g
3*13g
IN X1·AUD= X3
IN3·AUD=–13
In Example 2 above, the AUDIO LED is blinking indicating that LEDs 1-5 represent the audio setting for the
selected input. Input 1 LED is solid ON, value = 3. Input 2 LED is blinking fast, value = 2. Total Value is 3 +
2 = 5. The +dB LED is ON indicating a positive setting. The Audio level setting is +5 dB for the selected
input.
Set Front Panel Mode
Set Auto-Switch Mode #2
#1
F2
F1
Informationrequest
Informationrequest
Example:
i
I
I
(Same as I below)
V X1·A X1·F X5 ·QVER X2 ·M X6
V3·A3·F1·QVER1.23·M6
Input buttons 5 and 6 may be used to increase or decrease the current audio level setting. To change the
setting for the last example from +5 dB to –1 dB, with the AUDIO LED still blinking, press and release the
Input 6 (decrease) button six times. Each time the button is pressed and released, the LEDs change as
follows:
Request for part number
Request for part number
n
N
(Same as N below)
N6Ø-26Ø-Ø1
Query Software Version
q
(Same as Q below)
Query Software Version
Example:
Q
Q
QVER X2
QVER1.23
Explanation: Software version is 1.23 (example only)
View input channel X1 Audio Gain
v X1G
(Same as V below)
View input channel X1 Audio Gain
Example:
V X1G
V3G
IN X1·AUD= X3
IN3·AUD=–13
Explanation: Input 3 Audio Gain = –13
Error Response Codes
Invalid input channel (out of range)
E
E
E
Ø
Ø
Ø
1
6
9
Ø
Invalid input channel change (Autoswitch mode active)
Invalid mode parameter
Invalid command received by SW6 VGA Audio
Invalid value (out of range)
E1
E13
SW6 VGA Audio Switcher-Initiated Messages
When a local event takes place, such as a front panel operation, the SW6 VGA Audio switcher responds by
sending a message to the Host. The switcher initiated messages are listed below (underlined).
(C) COPYRIGHT 1998, EXTRON ELECTRONICS SW6 VGA AUDIO, Vx.xx
The displayed setting in the example above has changed to –1 dB. However, the stored setting in memory
will remain at +5 dB until the new setting is saved. Press and hold the AUDIO button to save the current
displayed setting in memory. Release the AUDIO button when the AUDIO LED goes OFF. The audio level
setting can also be loaded using RS-232 commands. See “RS-232 Command/Response Table” on page 3
for details.
C1
The copyright message is initiated by the switcher when it is first powered ON. Vx.xx is the
software version number. This is followed by C1 identifying the current selected input = 1
(power-up default is input #1).
Cx
This message is sent to the Host if the input is changed using the front panel. (x = new input #)
This message is sent to the Host when there is a change in the audio level setting.
Audio Level Reset
RECONFIG
To reset the audio level to 0 dB for all inputs, press and hold the AUDIO button. The AUDIO LED will begin
to blink. Continue to hold the AUDIO button in (approximately 10 seconds) until the AUDIO LED goes OFF.
All input audio levels will be set to 0 dB.
The switcher does not expect a response from the Host to any of the above switcher-initiated messages.
3
SW6 VGA Audio • RS-232 Command Response Table
SW6 VGA Audio • Audio Level
4
|