Extron electronic BUC 102 User Manual

B

U

C

10

2

A

U

D

I

O

B

A

L

/

U

N

B

A

L

C

O

N

V

E

R

T

E

R

P

O

W

E

R

1

2

V

0

.

2

A

M

A

X

L

R

B

A

L

/

U

N

B

A

L

O

U

T

P

U

T

S

L

R

B

A

L

/

U

N

B

A

L

I

N

P

U

T

S

S

P

A

R

E

O

N

B

A

L

U

N

B

A

L

1

2

Unbalanced

Balanced

Extron
300' STP 22
Dual Audio/
Control Cable

DVD

Extron
BUC 102

Balanced/Unbalanced
Audio Converter

Extron
SI 28

Surface-Mount
Speakers

1

0

0

-

2

4

0

V

1

.

3

A

,

5

0

-

6

0

H

z

V

O

L

/

M

U

T

E

1

0

V

S

T

A

N

D

B

Y

4

/

8

O

H

M

5

0

W

x

2

1

2

L

I

S

T

E

D

1

7

T

T

A

U

D

IO

/

V

I

D

E

O

A

P

P

A

R

A

T

U

S

C

L

A

S

S

2

W

I

R

I

N

G

H

P

A

5

0

2

C

U

S

LE

V

E

L

1

1

2

1

2

L

I

M

IT

E

R

/

P

R

O

T

E

C

T

S

I

G

N

A

L

2

I

N

P

U

T

S

O

U

T

P

U

T

R

E

M

O

T

E

0

0

Extron
HPA 502

Half Rack Power
Amplifer

www.extron.com

© 2008 Extron Electronics. All rights reserved.
Pricing and specifications may change without notice.

USA West

+1.714.491.1500 / +80 0.633.9876
+1.714.491.1517 FAX

USA East

+1.919.86 3.1794 / +80 0.633.9876
+1.919.86 3.1797 FA X

China

+ 86.21.3760.1568 / +4 00.883.1568
+ 86.21.3760.1566 FAX

Japan

+81.3. 3511.7655
+81.3. 3511.7656 FAX

Europe

+31.33 .453.4 040 / +800. 3987.6673
+31.33 .453.4 050 FA X

Dubai

+97 1.4.299 1800
+97 1.4.299 1880 FAX

Asia

+65.6 383.440 0 / +800.7339. 8766
+65.6 383.4664 FAX

BUC 102

Two Channel Audio BUC - Balanced and Unbalanced Converter

s i gn A l P ro c e s s or s

feAtures

• Inputs: Captive screw connectors

• Outputs: Captive screw connectors

• Provides signal matching between unbalanced and balanced audio equipment

— The BUC 102 enables correct interfacing of consumer and professional equipment
with proper gain offsets.

• Audio line driver — Active, op amp-based circuitry provides wide frequency

response, low noise, immunity to interference - EMI, and the ability to drive signals over
long cables.

• Allows transmission of balanced audio signals up to 1000' through Extron

STP20 cable

• Gain control for each channel with a wide adjustment range from -80 dB to
+20 dB — Two front panel rotary trim pots provide level adjustment for each input.

• Gain compensation switch for interfacing between professional A/V systems

• Rack-mountable 1U, one-eighth rack width metal enclosure

• External universal power supply included, part # 70-055-01 — Provides worldwide

power compatibility.

descriPti on

The Extron BUC 102 Balanced and Unbalanced Audio Converter provides signal matching
between unbalanced and balanced audio equipment. In addition to serving as an interface
between professional A/V systems and consumer products, the BUC 102 is a high-quality line
driver for sending and receiving audio signals over long distances.

Inputs and outputs for the BUC 102 are on captive screw connectors. User controls include
variable gain adjustments and a gain compensation switch to maintain consistency between
consumer and professional audio levels. Part of the VersaTools® line of small, economical,
int egrator frie ndl y prod uct s, the BUC 102 is hous ed in a 1U, one-eighth rack width
metal enclosure.

Aud io inP ut

Number / Signal type . .. .. . .. .. . 1 set of stereo, balanced/unbalanced

Connectors . .. .. . .. .. . .. .. . .. .. .. . (1) 3.5 mm captive screw connector, 5 pole

Impedance .. .. . .. .. . .. .. . .. .. . .. .. >20k ohms unbalanced, 40k ohms balanced, DC coupled

Nominal level . .. . .. .. . .. .. . .. .. . . -10 dBV (316 mVrms) or +4 dBu (1.23 Vrms)

Maximum level . .. . .. .. .. . .. .. . .. +20 dBu (7.75 Vrms), balanced or unbalanced, at 1%THD+N, 0 dB gain

NOTE: 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu.

Aud io out Put

Number / Signal type . .. .. . .. .. . 1 set of stereo, balanced/unbalanced

Connectors . .. .. . .. .. . .. .. . .. .. .. . (1) 3.5 mm captive screw connector, 5 pole

Impedance .. .. . .. .. . .. .. . .. .. . .. .. 50 ohms unbalanced, 100 ohms balanced

Gain error .. .. . .. .. . .. .. . .. .. .. . .. . ±0.5 dB channel to channel

Nominal level . .. . .. .. . .. .. . .. .. . . -10 dBV (316 mVrms) or +4dBu (1.23 Vrms)

Maximum level (Hi-Z) .. . .. .. . .. . >+25 dBu (13.78 Vrms), balanced, at 1%THD+N with 100k ohm load

Maximum level (600 ohm) . .. . . >+18 dBu (6.16 Vrms), balanced, at 1%THD+N

(The level of an unbalanced signal will be 6 dB lower.)

Gen erA l

External power supply . .. . .. .. . 100 VAC to 240 VAC, 50/60 Hz, 5 watts, external, universal; to 12 VDC,

Power input requirements .. . .. 12 VDC, 0.2 A

Temperature / Humidity .. .. . .. . Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing

Rack mount . .. . .. .. . .. .. . .. .. . .. . Yes, with optional rack shelves (See optional accessories)

Enclosure type .. .. .. . .. .. . .. .. . .. Metal

Enclosure dimensions . .. .. . .. .. 1.7" H x 2.2" W x 3.0" D (1U high, one-eighth rack wide)

Product / Shipping weight . .. .. 0.2 lbs (0.1 kg) / 2 lbs (1 kg)

Vibration . .. .. . .. .. . .. .. . .. .. . .. .. . ISTA 1A in carton (International Safe Transit Association)

Listings / Compliances .. .. . .. .. UL, CUL / CE, FCC Class A, VCCI, AS / NZS, ICES

MTBF . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. 30,000 hours

Warranty .. . .. .. .. . .. .. . .. .. . .. .. . . 3 years parts and labor

NOTE: All nominal levels are at ±10%, and all specifications are tested at unity gain unless otherwise noted.
Specifications are subject to change without notice.

1 A, regulated

Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing

4.3 cm H x 5.6 cm W x 7.6 cm D (Depth excludes connectors.)

sPecificAt io ns

Aud io

Gain .. .. . .. .. .. . .. .. . .. .. . .. .. . .. .. . Unity (0 dB) when the BUC 102 is set to the default gain adjustment and

Gain adjustment range .. .. .. . .. Mute to +20 dB, when DIP switch is set to match the output wiring

Frequency response .. .. . .. .. . .. 20 Hz to 20 kHz, <±0.15 dB

THD + Noise .. . .. .. . .. .. . .. .. . .. .. 0.05% @ 1 kHz at nominal level

S/N .. .. . .. .. . .. .. .. . .. .. . .. .. . .. .. . . >90 dB, balanced, at maximum output, unweighted

Stereo channel separation . .. . >80 dB @ 1 kHz, >60 dB @ 20 kHz

CMRR .. .. .. . .. .. . .. .. . .. .. . .. .. . .. . >72 dB @ 20 Hz to 20 kHz

model Version d escriPtion PArt #

BUC 102 Balanced-Unbalanced Audio Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-651-01

oPtionAl Accessorie s model des criPtion PAGe PArt #

RSU 129 1U 9.5" Deep Universal Rack Shelf Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 819 60-190-01

RSF 123 1U 3.5" Deep VersaTools® Rack Shelf Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 818 60-190-20

MBU 123 VersaTools® Mini Under-Desk Mount Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 815 70-212-01

PMK 100 One VersaTools®, 1/4 Rack Width Mini Projector Mounting Kit . . . . . . . . . . . . . . . . . . . page 813 70-217-01

MBB 100 VersaTools® Back of Rack Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 817 70-367-01

670

the DIP switch is set to match the output wiring.

DIP Switch Setting

Unbalanced 0 dB +6 dB

Balanced -6 dB 0 dB

Output Wiring

Unbalanced Balanced