OptoTest OP721 User manual
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Contacting OptoTest Corporation
1.805.987.1700 (7:30am to 5pm PST)
www.optotest.com
OptoTest Corp.
4750 Calle Quetzal
Camarillo, CA 93012 USA
Notice of Proprietary Rights
The design concepts and engineering details embodied in this manual, which are the
property of OptoTest Corporation, are to be maintained in strict condence. No element
or detail of this manual is to be spuriously used or disclosed without the express written
permission of OptoTest Corporation. All rights are reserved. No part of this publication
may be reproduced, stored in a retrieval system, or transmitted in any form or by any
means, electronic, mechanical, photocopying, recording, or otherwise, without prior
written permission from OptoTest Corporation.
COPYRIGHT © 2017 by OptoTest Corp
ALL RIGHTS RESERVED
PRINTED IN THE UNITED STATES OF AMERICA
MnOP721-RevA
online resources
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Table of Contents
Overview 3
Features 3
Initial Preparation 4
Front Panel Operation & Display 5
Example Instrument Setup 6
Internal Switch Diagram 6
Bar State 7
Cross State 7
USB Control of the OP721 8
Warranty Information 8
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Overview
The OP721 is an all-in-one bidirectional optical switch for single mode and multimode
applications. This optical switch is powered by an external 5V power supply and
incorporates the latest in high-speed switching technology. By combining the high
channel count capability of the OP720 with the 2x2 conguration of the OP725, the
OP721 is ideally suited for multiber bidirectional testing.
Features
• All-in-one ber optic switch
• 2x2 conguration for bidirectional testing
• MEMS technology, high-reliability, long-life
• External 5V power supply
• Bright OLED front panel display
• Software interface via OPL-Max and DLLs
• USB interface for communication
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Initial Preparation
Unpacking and Inspection
The unit was carefully inspected; mechanically, electrically, and optically before shipment.
When received, the shipping carton should contain the items listed in Standard
Contents; account for and inspect each item. In the event of a damaged instrument,
write or call OptoTest Corp, California.
Note: Be aware that accessories such as detector adapters, remote head detectors,
and high performance reference cables will be located inside a small box labeled
“Accessories Inside”. If this box is not included with the original shipment, contact
OptoTest or their nearest distributor.
Please retain the shipping container in case re-shipment is required for any reason.
Damaged In Shipment
All instruments are shipped F.O.B. Camarillo when ordered from OptoTest.
If you receive a damaged instrument you should:
1. Report the damage to your shipper immediately.
2. Inform OptoTest Corporation.
3. Save all shipping cartons.
Failure to follow this procedure may aect your claim for compensation.
Standard Contents
1. Model OP721 Bidirectional Optical Switch
2. 5V Power Supply (U.S. Shipments only)
3. USB cable
4. Certicate of Calibration and, if requested, the Metrology Report
5. Instruction Manual(s)
6. Applicable Software and Documentation (if ordered)
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Front Panel Operation & Display
All functionality of the front panel is visible and adjustable from the modular home
screen. The top button toggles between the different sections of the home screen, and
the bottom button toggles options on the active section. A border around a section of
the screen signifies that the section is active and can be changed.
Multichannel Configuration and Bidirectional Configuration
Channel Selection
If a channel selection portion of the screen is active, pressing the bottom button toggles
through channels in that section: A or B, with Acorresponding to the switch ports on
the left side of the unit and Bcorresponding to the switch ports on the right side. The
channels are toggled through sequentially, looping back to the first channel after the last.
Mode Selection
If the mode selection portion of the screen is active, pressing the bottom button toggles
between cross mode or bar mode.
Bar Mode: This option is used for forward directional testing. In this mode, the Source
port is connected to the left side (A), which outputs to the right side (B), and then to
the OPM port.
Cross Mode: Switching to cross mode allows for testing in the reverse direction of the
cable without flipping. In this mode, the Source port reroutes to the right side (B) and
outputs to the left side (A), then eventually to the OPM port.
Active
Section
Section
Selection
Section
Options
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Example Instrument Setup
Internal Switch Diagram
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Internal Switch Diagram
Bar State
light path
and direction
Cross State
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USB Control of the OP721
The OP721 can be controlled through the USB bus via OPL-MAX software and
DLLs. Upon request, OptoTest can supply the appropriate DLLs along with sample
programs to facilitate the software creation process. For these DLLs please contact
Warranty Information
OptoTest Corp. warrants this product to be free from defects in material and workmanship
for a period of 2 (two) years from date of shipment. During the warranty period we
will, at our option, either repair or replace any product that proves to be defective. To
exercise this warranty contact OptoTest Corp. Headquarters. You will be given prompt
assistance and return instructions. Repairs will be made and the instrument returned,
transportation prepaid. Repaired products are warranted for the balance of the original
warranty period, or at least 90 days.
NOTE: Do not send instruments for any reason without contacting OptoTest
headquarters first.
www.optotest.com
1.805.987.1700
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