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Extron Electronics ASA 111, ASA 121, ASA 131, ASA 141 Adapters User Manual

Audio output, General

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Extron Electronics, USA

1230 South Lewis Street
Anaheim, CA 92805
USA
714.491.1500
Fax 714.491.1517

Extron Electronics, Europe

Beeldschermweg 6C
3821 AH Amersfoort
The Netherlands
+31.33.453.4040
Fax +31.33.453.4050

Extron Electronics, Asia

135 Joo Seng Road, #04-01
PM Industrial Building
Singapore 368363
+65.6383.4400
Fax +65.6383.4664

Extron Electronics, Japan

Kyodo Building
16 Ichibancho
Chiyoda-ku, Tokyo 102-0082 Japan
+81.3.3511.7655
Fax +81.3.3511.7656

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.