New Focus 0901 User Manual

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0901 pwr supply rev C.fm Page 1 Friday, August 10, 2001 2:41 PM

USER’S GUIDE

±15-V Current-Limited
Power Supply

Model 0901

5215 Hellyer Ave. • San Jose, CA 95138-1001 • USA

phone: [phone] • fax: [phone]

e-mail: [email protected] • www.newfocus.com

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Warranty

New Focus, Inc. guarantees its products to be free of defects for one year from
the date of shipment. This is in lieu of all other guarantees, expressed or implied,
and does not cover incidental or consequential loss.

Information in this document is subject to change without notice.
Copyright 2001, New Focus, Inc. All rights reserved.
The symbol and NEW FOCUS, Inc. are registered trademarks

of NEW FOCUS, Inc.
Document Number 090101 Rev. C

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Contents

Operation 5

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Characteristics 7

Customer Service 8

Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Appendices 9

Appendix I: Changing the AC Voltage Selection . . . . . . . . . . 9

Appendix II: Fuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Appendix III: Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Appendix IV: Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Model 0901 Power Supply Contents • 3

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4 • Contents NEW FOCUS, Inc.

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Operation

Introduction

The New Focus Model 0901 Power Supply is a triple­output, ±15-V DC power supply. Each of the outputs is
current limited: the banana-jack output to 100 mA and
the two micro-connector outputs to 300 mA. While
the supply can be used as a general-purpose supply, it
is primarily intended for use with those New Focus
products that require a ±15-V power supply.

Figure 1:

Model 0901

front panel

±15 Volt Current Limited Power Supply

0901

Power

GND

–+

0.1 A Max

0.3 A Max

0.3 A Max

Getting Started

The three ±15-V outputs of the Model 0901 are all
derived from a common, 0.8-A linear supply, but are
independently current limited, as shown in Figure 2.

Model 0901 Power Supply Operation • 5

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Since each output is independently limited, the voltage
on each output differs slightly. All three ±15-V outputs
will, however, be within ±3% of ±15 V.

Note:

Note:

Figure 2:

Block diagram

of the Model

0901 power

supply

Please refer to “Appendix IV: Cables” on page 12 for
instructions in connecting the Model 0901 to other New Focus
products.

±15 V

Power
Supply

+15 V

COM

-15 V

0.1 A Current
Limit

0.1 A Current
Limit

0.3 A Current
Limit

0.3 A Current
Limit

0.3 A Current
Limit

0.3 A Current
Limit

+15 V

COM

-15 V

+15 V

COM

-15 V

+15 V

COM

-15 V

Banana

Jack

Microtech
Connector

Microtech
Connector

6 • Operation NEW FOCUS, Inc.

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Characteristics

Model # 0901

Output Voltages ±15 V (±3%)

Outputs (3 total) Microtech Connector (2)

Banana Jack (1)

Typical Current Limit
(Microtech connector)

Typical Current Limit
(banana-jack connector)

Output Impedance < 6

300 mA

100 mA

Ω

Model 0901 Power Supply Characteristics • 7

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Customer Service

Technical Support

Information and advice about the operation of any
New Focus product is available from our applications
engineers. For quickest response, ask for “Technical
Support” and know the model and serial numbers for
your product.

Service

Hours: 8:00–5:00 PST, Monday through Friday

(excluding holidays).

Toll Free: 1–866–NUFOCUS (1–866–683–6287)

(from the USA & Canada only)

Phone: [phone]

Support is also available by fax and email:

Fax: [phone]
Email: [email protected]

We typically respond to faxes and email within one
business day.

In the event that your New Focus product malfunc­tions or becomes damaged, please contact New Focus
for a return authorization number and instructions on
shipping the unit back for evaluation and repair.

8 • Customer Service NEW FOCUS, Inc.

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Appendices

Appendix I: Changing the AC Voltage Selection

The Model 0901 can operate at 100, 120, 220, or 240 V
AC with AC frequencies of 47–63 Hz. The unit is
configured at the factory for the standard AC voltage in
the purchaser’s country.

Figure 3:

AC power
module &

voltage

indicator

To check the voltage setting, look at the voltage
indicator on the AC power module on the back of the
power supply.

Voltage Indicator

120Vac

WARNING

For continued protection against fire hazard, replace
only with the same type and rating of fuse.

Input VAC

Fuse

90 - 120

2.0 A T

200 - 250

1.0 A T

0901

Model #:

XX-XXXX

Serial #:

Made in U.S.A.

1.

Make sure the power supply is turned off.

2.

Disconnect the AC power cord.
Open the cover of the power module using a

3.

CAUTION 

Risk of electric shock, do not remove 
cover. Refer servicing to qualified personnel.

10 - 250 VAC

1.2 - 0.5A, 48-66Hz

small blade screwdriver or similar tool.

Model 0901 Power Supply Appendices • 9

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Figure 4:

Power module

with the cover

AC-voltage
selection wheel

open

Fuses &
fuse holders

100Vac

120Vac

220Vac

~

~

~

120Vac

WARNING

For continued protection against fire hazard, replace
only with the same type and rating of fuse.

Input VAC

Fuse

90 - 120

2.0 A T

200 - 250

1.0 A T

0901

Model #:

XX-XXXX

Serial #:

Made in U.S.A.

Remove the AC-voltage selection wheel from

4.

CAUTION 

Risk of electric shock, do not remove 
cover. Refer servicing to qualified personnel.

10 - 250 VAC

1.2 - 0.5A, 48-66Hz

the unit.

Do not attempt to rotate the wheel while it is still
in the power module; the wheel must be removed,
turned, and then reinserted for proper operation.

Reinsert the wheel in the module so the desired

5.

Ac voltage can be viewed in the power-module
window.

6.

Ensure the proper fuses for the new AC voltage
are installed (see “Appendix II: Fuses”).

7.

Close the power-module cover.
Verify the proper voltage is showing through

8.

the module window.
Reconnect the AC power cord.

9.

10 • Appendices NEW FOCUS, Inc.

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Appendix II: Fuses

The AC power module requires two 5x20-mm, 250-V,
fast fuses. The current ratings of the fuses should be as
follows:

AC Voltage Fuse Rating

100 V 0.5 A

120 V 0.5 A

220 V 0.25 A

240 V 0.25 A

Appendix III: Pin-Outs

The front-panel connector pin-outs are as follows:

Line Banana Jack

+15 V Red Pin 1

COM Green Pin 2

-15 V Black Pin 3

Figure 5:

Pin-out of

Microtech

connector (as

viewed from

front panel)

Microtech

Connector

Pin 2

Pin 3 Pin 1

Model 0901 Power Supply Appendices • 11

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Appendix IV: Cables

New Focus offers two types of cables for use with the
Model 0901:

Model # Description

0921

Cable, 3 banana plugs (male) to Micro­tech connector female, 1 meter

0922

Cable, Microtech connector female to
Microtech connector female, 1 meter

Connect a Model 0921 cable to one of the 0.3-A
outputs to provide banana-jack outputs for general
laboratory use. This cable should not be used to drive a
New Focus photoreceiver or amplifier from the Model
0901’s 0.1-A banana-jack output since it provides
insufficient current for New Focus products.

The colored male-banana plugs on the Model 0921
cable follow the color-coding convention listed on
page 11 for the Model 0901 banana jacks: red is +15 V,
green is common, and black is -15 V. This cable can
also be used with a power supply other than the Model
0901 to power a New Focus product.

When powering a New Focus product with the Model
0901, use a Model 0922 cable on one of the supply’s

0.3-A Microtech connector outputs.

12 • Appendices NEW FOCUS, Inc.

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Artisan Technology Group is your source for quality

new and certied-used/pre-owned equipment

• FAST SHIPPING AND

DELIVERY

• TENS OF THOUSANDS OF
IN-STOCK ITEMS

• EQUIPMENT DEMOS

• HUNDREDS OF
MANUFACTURERS

SUPPORTED

• LEASING/MONTHLY
RENTALS

• ITAR CERTIFIED
SECURE ASSET SOLUTIONS

SERVICE CENTER REPAIRS

Experienced engineers and technicians on staff
at our full-service, in-house repair center

Instra

Remotely inspect equipment before purchasing with
our interactive website at www.instraview.com

Contact us: (888) 88-SOURCE | [email protected] | www.artisantg.com

SM

REMOTE INSPECTION

View

WE BUY USED EQUIPMENT

Sell your excess, underutilized, and idle used equipment
We also offer credit for buy-backs and trade-ins

www.artisantg.com/WeBuyEquipment

LOOKING FOR MORE INFORMATION?

Visit us on the web at www.artisantg.com for more
information on price quotations, drivers, technical

specications, manuals, and documentation