M-Audio CO2 User Manual

™

Coaxial-to-Optical

and

Optical-to-Coaxial

Converter

Ver:CO2 073102

CO2

Introduction

Thank you for your purchase of the M-Audio CO2 Coaxial/
Optical Converter. CO2 is a compact but rugged S/PDIF tool
that simultaneously converts S/PDIF signals from optical-to­coax, and coax-to-optical. CO2's innovative 2-in 2-out design
allows it to operate as a full-duplex bidirectional converter,
or as a half-duplex converter with "thru" port. This enables
the CO2 to be used as a converter and a repeater.

Operation

Plug one end of the included power adapter into the CO2's
power jack and the other end into a live wall socket or
power strip. The power indicator LED on the side of the CO2
will light. Next, choose the CO2's mode of operation by
setting the slide switch in the side of the CO2.

NOTE: The CO2's mode switch has been intentionally recessed
in order to prevent accidental mode switching. Use a pen or
similar object to set the switch position.

The CO2 has three different modes of operation:

● OPTICAL --> COAX. Data at the optical input is converted

to coaxial output, and also copied "thru" to the optical
output. See Figure 1 for an example. In this example, the
CO2 is a converter and a repeater.

● BI-DIRECTIONAL. Data at the optical input is converted

to coaxial output, and data at the coaxial input is
converted to optical output. Both conversions occur
simultaneously (also known as "full-duplex" operation).
This is the most popular mode. See Figure 2 for an
example. In this example, the CO2 is a bi-directional
converter.

● COAX --> OPTICAL. Data at the coaxial input is

converted to optical output, and also copied "thru" to the
coaxial output. See Figure 3 for an example. In this
example, the CO2 is a converter and a repeater.

After the switch has been set to the desired mode, connect
the external S/PDIF devices.

NOTE: While it is usually desirable to set the CO2's mode switch
before connecting external equipment, the switch setting may
also be changed while external equipment is connected to the
CO2. You might, however, hear small bursts of noise while
switching - this is normal as it takes a small amount of time for
external devices to "lock on" to the S/PDIF data stream after the
switching takes place.

POWER

▲

▲

OPTICAL

▲

▲

COAXIAL

9VDC

COAX➔ OPTICAL

OPTICAL➔ COAX

COAXIAL/OPTICAL CONVERTER

BI-DIRECTIONAL

Device #1

Optical Out

Device #3

(optional)

Optical In

Device #2

Coax In

CO2

AUDIO

Figure 1 - Optical to Coaxial with Thru

Features

● Converts S/PDIF optical-to-coaxial and

coaxial-to-optical, simultaneously.

● "Thru" ports may be used to extend the length

of coaxial or optical runs.

● Three selectable modes of operation.

● Optical (Toslink) and RCA (coaxial) inputs

and outputs.

● Power indicator LED.

Specifications

● Inputs: 1 Toslink optical and 1 RCA coaxial jack.

● Outputs: 1 Toslink optical and 1 RCA coaxial

jack (transformer-isolated).

● Power supply: 9 Volts DC, center pin positive,

300 milliamps.

● Dimensions: 3.5" x 2.3" x 1.2".

● Approximate weight: 7 ounces.

For best results, when using the CO2 RCA jacks, use a
good-quality S/PDIF cable. The cable should be coaxial
with 75-ohm impedance. Vendors sell cables specifically
for this use, but a good-quality video dubbing cable also
has the proper characteristics.

Device #1

Coaxial Out

Device #2

Optical In

Device #3

(Optional)

Coax In

Limited Lifetime Warranty

MIDIMAN warrants that this product is free of defects in materials and
workmanship under normal use so long as the product is: owned by the
original purchaser; the original purchaser has proof of purchase from an
authorized MIDIMAN dealer; and the purchaser has registered his/her
ownership of the product by sending in the completed warranty card.

This warranty explicitly excludes power supplies and included cables
which may become defective as a result of normal wear and tear.

In the event that MIDIMAN receives written notice of defects in materials
or workmanship from such an original purchaser, MIDIMAN will either
replace the product, repair the product, or refund the purchase price at its
option. In the event any repair is required, shipment to and from
MIDIMAN and a nominal handling charge shall be born by the purchaser.
In the event that repair is required, a Return Authorization number must be
obtained from MIDIMAN. After this number is obtained, the unit should
be shipped back to MIDIMAN in a protective package with a description of
the problem and the Return Authorization clearly written on the package.

In the event that MIDIMAN determines that the product requires repair
because of user misuse or regular wear, it will assess a fair repair or
replacement fee. The customer will have the option to pay this fee and
have the unit repaired and returned, or not pay this fee and have the unit
returned unrepaired.

The remedy for breach of this limited warranty shall not include any other
damages. MIDIMAN will not be liable for consequential, special, indirect, or
similar damages or claims including loss of profit or any other commercial
damage, even if its agents have been advised of the possibility of such
damages, and in no event will MIDIMAN’s liability for any damages to the
purchaser or any other person exceed the price paid for the product,
regardless of any form of the claim. MIDIMAN specifically disclaims all
other warranties, expressed or implied. Specifically, MIDIMAN makes no
warranty that the product is fit for any particular purpose.

This warranty shall be construed, interpreted, and governed by the laws of
the state of California. If any provision of this warranty is found void,
invalid or unenforceable, it will not affect the validity of the balance of the
warranty, which shall remain valid and enforceable according to its terms.
In the event any remedy hereunder is determined to have failed of its
essential purpose, all limitations of liability and exclusion of damages set
forth herein shall remain in full force and effect.

If, after reading the manual, you need additional tech support or
have comments or suggestions, we invite you to contact us directly,
using the following information:

POWER

▲

▲

OPTICAL

▲

▲

COAXIAL

9VDC

COAX➔ OPTICAL

OPTICAL➔ COAX

COAXIAL/OPTICAL CONVERTER

BI-DIRECTIONAL

Device #1

In - Optical - Out

Device #2

Out - Coax - In

POWER

▲

▲

OPTICAL

▲

▲

COAXIAL

9VDC

COAX➔ OPTICAL

OPTICAL➔ COAX

COAXIAL/OPTICAL CONVERTER

BI-DIRECTIONAL

Figure 3 - Coaxial to Optical, with thru

Figure 2 - Optical to Coax, Coax to Optical,

or Both simultaneously

CO2

CO2

AUDIO

AUDIO

MIDIMAN U.S.

45 E. Saint Joseph Street
Arcadia, CA 91006-2861
U.S.A

MIDIMAN U.K.

Unit 5, Saracen Industrial Park
Mark Rd.
Hemel Hempstead,
Herts HG3 1DH
England

MIDIMAN Deutschland
(Germany)

Kuhallmand 34
D-74613 Ohringen
Germany

MIDIMAN Canada

1400 St. Jean Baptiste Ave., #190
Quebec City,
QC G2E 5B7
Canada

M-Audio Japan

2-10-11 Marunouchi
Naka-Ku, Nagoya 460-0002
Japan

Sales Information: 626-445-2842
Sales Information (email): [e-mail]
Tech Support: 626-445-8495
Tech Support (email): [e-mail]
Fax: [phone]
Internet Home Page: http://www.m-audio.com

Sales Information: 44 (0) 144 241 6590
Sales Information (email): [e-mail]
Technical Support: 44 (0) 871 717 7102
Technical Support (email): [e-mail]

Fax: [phone]

Sales Information: 07941 98 7000
Sales Information (email): [e-mail]
Technical Support: 07941 98 70030
Technical Support (email): [e-mail]
Fax: [phone]

Internet Home Page: http://www.midiman.de

Tel: [phone]
Fax: [phone]
Email: [e-mail]

Tel: [phone]
Fax: [phone]
internet Home Page: http://www.m-audio.co.jp
Email: [e-mail]

Audio Buddy

Tested to

comply

with FCC

Standards

For Home or Studio Use