Extron electronic Stereo System SW6 User Manual

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  
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© 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
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