User Manual

Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
USA
714.491.1500
Fax [phone]
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort
The Netherlands
+31.33.453.4040
Fax [phone]
Extron Electronics, Asia
135 Joo Seng Road, #04-01
PM Industrial Building
Singapore 368363
+65.6383.4400
Fax [phone]
Extron Electronics, Japan
Kyodo Building
16 Ichibancho
Chiyoda-ku, Tokyo 102-0082 Japan
+81.3.3511.7655
Fax [phone]
www.extron.com
ASA Audio Summing Adapters
(ASA 111, ASA 121, ASA 131, ASA 141)
The Extron ASA audio summing adapters sum left and right stereo audio signals into
mono signals for distributed sound and other applications that require mono sound.
The ASA 111 and ASA 121 output an unbalanced audio signal only. The ASA 131
outputs a balanced audio signal. The ASA 141 outputs a balanced or unbalanced audio
signal.
ASA 131
ASA 121, ASA 141
This connector
is slightly smaller
on the ASA 121.
NOTE
ASA 111
NC
NC
4
4
1
3
2
4
Model Input
connector
Input
signal
Output
connector
Output
signal
ASA 141
ASA 111
ASA 121
ASA 131
2 RCAs 3-pin captive
screw
Balanced/
unbalanced
mono
3.5 mm
mini
plug
3-pin captive
screw
Unbalanced
mono (only)
3-pin captive
screw
Unbalanced
mono (only)
5-pin
captive
screw
Unbalanced
stereo
Unbalanced
stereo
Unbalanced
stereo
Balanced
stereo
3-pin
captive
screw
Balanced
mono (only)
2
4a 4b
4a
4a
4b
3
1
2 RCAs
2
(2 pins
are used)
(2 pins
are used)
ASA 141 unbalanced output — Do not short the negative (-) terminal to
ground (Gnd).
The ASA 131 supports the wiring scheme used by Extron products that output
audio on 5-pole captive screw connectors.
68-1150-01
Rev. C
11 06
ASA 111,
ASA 121,
ASA 141
Unbalanced
Output
ASA 131,
ASA 141
Balanced
Output
ASA 131
Balanced
Input
Sleeve
Ring
Tip
No connection
NC
Sleeve
Tip
Ring
Tip
Sleeve(s)
Ring
Tip
4a
2
4b
Maximum level
ASA 111, 121, 131 ................... +24 dBu (12.3 V)
ASA 141 ................................... +15 dBu (5.6 V)
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu
Audio output
Number/signal type
ASA 111, ASA 121.................. 1 unbalanced mono
ASA 131 ................................... 1 balanced mono
ASA 141 ................................... 1 transformer balanced/unbalanced mono
Connectors ................................... (1) 3.5 mm direct insertion captive screw connector, 3 pole
Impedance (with 50 ohm input impedance)
ASA 101 ................................... 75 ohms unbalanced, 150 ohms balanced
ASA 111, 121 ........................... 1k ohm unbalanced
ASA 131 ................................... 2k ohms balanced
ASA 141 ................................... 3.3k ohms balanced (typical)
Nominal level
ASA 111, 121........................... -10 dBV (316 mV)
ASA 131 ................................... +4 dBu (1.23 V)
ASA 141 ................................... +15 dBu (5.6 V)
Maximum level
ASA 111, 121, 131 ................... +24 dBu (12.3 V)
ASA 141 ................................... +15 dBu (5.6 V)
General
Power ............................................ Not powered
Temperature/humidity.............. Storage: -40 to +158 °F (-40 to +70 °C) /
10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) /
10% to 90%, noncondensing
Rack mount .................................. Can be attached to any flat surface with supplied Velcro
®
Enclosure type ............................. Molded plastic
Enclosure dimensions
ASA 111, 121, 131 ................... 0.7" H x 0.7" W x 1.3" D
1.8 cm H x 1.7 cm W x 3.4 cm D
(Depth excludes the 24 inch long pigtail for ASA 121, and the
24 inch long single cable for the ASA 111 and ASA 131.)
ASA 141 ................................... 1.1" H x 1.1" W x 1.6" D
2.8 cm H x 2.8 cm W x 4.0 cm D
(Depth excludes the 24 inch long pigtail)
Product weight ............................ 0.2 lbs (0.1 kg)
Shipping weight .......................... 1 lb (1 kg)
Vibration....................................... ISTA 1A in carton (International Safe Transit Association)
Listings.......................................... UL, CUL
Compliances................................. CE, FCC Class A, VCCI, AS/NZS, ICES
MTBF............................................. 30,000 hours
Warranty....................................... 3 years parts and labor
All nominal levels are at ±10%.
Specifications are subject to change without notice.