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Quick Installation Guide
Digital Audio Converter — 5.1 Channel
Order toll-free in the U.S. : Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax
724-746-0746 • Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence,
PA 15055-1018 • Web site: www.blackbox.com • E-mail : info @blackbox.com
Customer
Support
Information
March 2009
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IC081A
1. Overview
The Digital Audio Converter, 5.1 Channel (IC081A) converts one LPCM-encoded
or one 5.1 Channel Digital coaxial (S/PDIF) or optical (TOSLink) digital audio signal
to a standard left/right analog audio output, thereby allowing a digital audio
source such as a DVD or CD player without RCA analog audio output to be
connected to an audio-video receiver or TV.
Applications include commercial and residential audio systems, boardroom
systems, collaborative PC systems, and medical information systems.
2. Installation
1. Identify the connectors on the Digital Audio Converter as indicated on the
product panels.
2. To install the Digital Audio Converter:
2a. Connect the converter input to the digital audio source with an Optical
(TOSLink) or 75-ohm coaxial (S/PDIF) cable.
2b. Set the input switch to the appropriate signal.
2c. Connect the converter output to the analog audio receiver with a stereo audio
compliant cable.
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Digital Audio Converter—5.1 Channel Quick Installation Guide
3. Connect the 5 VDC power supply to the converter first, and then plug the
power supply into an AC power outlet. If power is present, the green power
LED of the Digital Audio Converter will be ON.
NOTE: Power-on the Digital Audio Converter only after all connections are made.
4. Power-on the audio source and receiver and verify the audio quality.
5. The following diagrams show the final configurations.
DVD player
S/PDIF
PSU
Audio cables
not included
IC0 81A
Figure 1. S/PDIF application.
DVD player
TOSlink
PSU
Audio cables
not included
IC0 81A
Figure 2. TOSlink application.
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Digital Audio Converter—5.1 Channel Quick Installation Guide
3. Troubleshooting
The following table describes some of the symptoms, probable causes and
possible solutions in respect to the installation of the Digital Audio Converter—
5.1 Ch ann el.
Table 3-1. Troubleshooting tips.
Symptom LEDs Probable Causes Possible Solutions
Power Lock
No Sound OFF OFF No power Check power connections
No Sound ON OFF Optical/Coaxial Cable Check the Optical/Coaxial cables.
No Sound ON ON Stereo audio cable Check the stereo audio cable.
No Sound ON ON Wrong input on receiver Check if the selected input on the
receiver can receive analog stereo
audio.
No Sound ON ON Audio source outputs a
unsupported compressed
bitstream such as DTS.
Configure the source to only output a uncompressed LPCM or 5.1
Channel Digital bitstream.
Choppy sound
ON ON Weak connections. • Check cable connections.
• Check the optical /coaxial cable
qualit y.
NOTE: If you still cannot diagnose the problem, contact Black Box Technical Support at
724-746-5500 or info @blackbox.com.
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© Copyright 2014. Black Box Corporation. All rights reserved. Black Box® and the Double Diamond logo
are registered trademarks of BB Technologies, Inc. Any third-party trademarks appearing in this manual
are acknowledged to be the property of their respective owners.
IC081A Quick Installation Guide, version 1
4. Specifications
Table 4-1. Specifications.
Approvals Compliance: FCC, CE, RoHS;
Flammability: 94V0
Bit Depth 24 bit S/PDIF compress and uncompress bitstream
Devices DVD, CD players, TV, PC, laptops
Distortion <0.001% at 1 KHz
Enclosure ABS fire-retardant plastic
Environment Temperature Tolerance:
Operating: 32° to 104° F (0º to 40º C);
Storage: -4° to +185° F (-20º to +85º C);
Humidity Tolerance:
Up to 95%, noncondensing
Sample Rate 32, 44.1, 48, and 96 kHz
SNR >90 dB (20 Hz–20 kHz)
Switch Selects between S/PDIF and TOSLink
Transmission Transparent to the user
Interface Digital audio, 5.1 Channel or LPCM
Connectors (1) coaxial,
(1) TOSLink,
(2) RCA
NOTE: Audio cables are not included.
Power Power Supply: 110–240 VAC, 5 VDC power supply with interchangeable
blades;
Consumption: 1.75 watts
Dimensions 1"H x 2.4"W x 2.25"D (2.5 x 6.1 x 5.5 cm)
Weight 1 lb. (0.45 kg)
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