Olson Technology OT-1000-HH User Manual Rev.X4

Model OT-1000-HH

1GHz SuperMod Optical Transmitter, DWDM

BASIC OPERATING MANUAL

Some of the features mentioned in this Basic OT-1000-HH Manual can only be accessed with

the optional OT-NEC-A, Network Element Controller. These features are noted with a “***”

after the section titles. Refer to the Advanced OT-1000-HH Manual for a detailed under-

standing of these features.

24926 Highway 108
Sierra Village, CA 95346
Phone: [phone]
Fax: [phone]

025-000573 Rev. X4 E-Mail: [e-mail]

3/18/09

TABLE OF CONTENTS

SAFETY.....................................................................................................................................................................3

Safety Precautions.................................................................................................................................................3

Laser Safety Procedure .........................................................................................................................................3

General Safety Instructions....................................................................................................................................4

Laser Safety Instructions........................................................................................................................................ 4

GENERAL DESCRIPTION........................................................................................................................................7

Figure 1 - Transmitter F ront Panel 7

PRINCIPLES OF OPERATION................................................................................................................................. 7

Figure 2 - Block Diagram of OT-1000-HH 7

Principle of Element Management.........................................................................................................................9

Figure 3 - The OT-1000-HH interfacing with other equipment and a SNMP EMS. 9

Technical Specifications.......................................................................................................................................10

Features...............................................................................................................................................................10

Optical Properties.................................................................................................................................................11

Electrical Properties ............................................................................................................................................. 11

Test Configurations..............................................................................................................................................11

Operating the OT-1000-HH....................................................................................................................................12

Handling Optical Components .............................................................................................................................12

Installing the OT-1000-HH ...................................................................................................................................14

Figure 4 - Rear of OT-1000-HH ...........................................................................................................................14

Power-Up Sequence............................................................................................................................................15

Setting Appropriate Operating Conditions ...........................................................................................................15

Redundancy Applications (Optical Power On /Off)..............................................................................................18

LED Display and Alarms......................................................................................................................................19

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SAFETY

Safety Precautions

The optical emissions from the units are laser-based and may present eye hazards if improperly used. NEVER
USE ANY KIND OF OPTICAL INSTRUMENT TO VIEW THE OPTICAL OUTPUT OF THE UNIT. Be
careful when working with optical fibers. Fibers can cause painful injury if they penetrate the skin.

Laser Safety Procedure

ALWAYS

read the product data sheet and the laser safety label before powering the product. Note the opera-

tion wavelength, optical output power and safety classifications.
If safety goggles or other eye protection are used, be certain that the protection is effective at the wavelength

emitted by the device under test BEFORE
ALWAYS

connect a fiber to the output of the device BEFORE power is applied. Power should never be ap-

applying power.

plied without an attached fiber. If the device has a connector output, a connector should be attached that is
connected to a fiber. This will ensure that all light is confined within the fiber waveguide, virtually eliminat­ing all potential hazards.

NEVER look at the end of the fiber to see if light is coming out. NEVER! Most fiber optic laser wavelengths
(1310nm and 1550nm) are totally invisible to the unaided eye and will cause permanent damage. Always use
instruments, such as an optical power meter, to verify light output.

NEVER, NEVER, NEVER look into the end of a fiber on a powered device with ANY sort of magnifying
device. This includes microscopes, eye loupes and magnifying glasses. This WILL cause a permanent and ir­reversible burn on your retina. Always double check that power is disconnected before using such devices. If
possible, completely disconnect the unit from any power source.

If you have questions about laser safety procedures, please call Olson Technology before powering your
product.

Attention:
Please read the instructions completely and carefully

before putting the unit into operation!
All operation steps should be carried out in the pre-

scribed sequence!
Improper putting into operation can cause serious dan-

ger for personnel and/or damage the device.

INVISIBLE LASER RADIATION
DO NOT STARE INTO BEAM OR VIEW DIRECTLY

WITH OPTICAL INSTRUMENTS
CLASS 1M LASER PRODUCT
MAXIMUM OUTPUT POWER: 150mW
WAVELENGTH: 1550nm
IEC 60825-1 (08/2001)

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Read this chapter containing safety instructions before operating the system for the

NOTICE

first time or carrying out any modifications to the transmitter. It is also recommended
to re–read the chapter at certain intervals in order to refresh your knowledge about
safety.
The transmitter may only be operated by personnel who have received the necessary
training in handling optical and electrical equipment and have been instructed in laser
safety.

General Safety Instructions

Please read all instructions completely and carefully before putting into operation!
All operation steps should be carried out in the prescribed sequence!
Improper putting into operation can cause death or serious physical harm of persons

DANGER

or damage the devices.

Operational Personnel

NOTICE

The transmitter OT-1000-HH may only be operated by personnel who have received
the necessary training in handling optical and electrical equipment and have been
instructed in laser safety.

Module Locations
The transmitter shall only be operated in locations with restricted access.

WARNING

Laser Safety Instructions

Laser Equipment
Module operation and maintenance must only be carried out by persons who have
received adequate training in laser safety.
The optical transmitters and amplifiers used in the system emit optical power in the

WARNING

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invisible infrared spectrum range. Under normal operating conditions, the optical

power is transferred in the fibers and is not accessible. Each optical transmitter and
each optical amplifier is assigned to a hazard level according to IEC 60825–2. This
hazard level is based on radiation that could become accessible under reasonabl e
foreseeable circumstances, e.g. disconnected fiber connector, fiber cable break.

Hazard Level

NOTICE

The hazard level of the optical transmitter is: 1M: eye safe for normal viewing
(without optical aids).

Where possible, optical transmission or test equipment should be shut down, put into a low power state of
disconnected before any work is completed on exposed fiber, connectors, etc.

Check optical power in a fiber using a calibrated optical power meter.
If it is necessary to look at fibers or connectors: Ensure that the fibers do not transmit optical power. There-

fore, use a calibrated optical power meter.
Do not stare directly into the beam and do not use any unapproved collimating device to view the fiber ends

or connector faces. Always use approved eye protection equipment if hazardous level requires. Do not point
fiber ends at other people.

If the work to be carried out requires the use of eye protection, only use equipment which has been tested and
approved for the wavelengths involved.

Any single or multiple fiber ends or ends found not to be terminated with power levels exceeding hazard level
1 should be individually or collectively covered when not being worked on. Use only covers or covering ma­terial with sufficient attenuation of the optical power at the wavelength concerned. Sharp ends should not be
exposed.

When using optical test cords, the optical power source shall be the last to be connected and the first to be
disconnected.

Do not make any unauthorized modifications to any optical fiber system or associated equipment.
Replace damaged optical safety labels or attach new labels if labels are missing.
Use test equipment of the lowest class necessary and practical for the task. Do not use test equipment of a

higher class than the location hazard level.

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INTRODUCTION

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The OT-1000-HH transmitter is a highly sophisticated Direct Modulation 1550nm Fiber Optic CATV Transmit­ter. Its performance rivals that of the world’s best External Modulation 1550nm Fiber Optic CATV Transmitters
at distances up to 20km. Because of its unmatched level of performance, we refer to the OT-1000-HH as a “Su­perMod” transmitter. The basic OT-1000-HH transmitter is configured by Olson personnel to have the most
common settings and features enabled. Olson also presets the dispersion compensation distance to a value from
0km to 20km according to the detailed part number provided by the customer. It is possible for the customer to
access a wide array of internal features by means of a Network Element Controller, such as the Olson
OT-NEC-A, sold separately. Since most customer’s needs are met by the basic transmitter, the Operating Manual
is broken down into two parts. There is a Basic manual describing the installation and operation of the stand­alone transmitter. A second manual, describes Advanced topics dealing mainly with features that can only be
accessed with the OT-NEC-A, Network Element Controller. Some of the features that can only be used with the
optional Network Element Controller, are briefly mentioned in the Basic manual. These features are noted with a
“***”.

This document contains the description for the base units OT-1000-HHcxx (19" wide housing). The
OT-1000-HH is intended for CATV broadcast applications with a typical frequency range from 47 to 1,000MHz
and analog and/or digital modulation scheme

The extension c (in OT-1000-HHcxx) specifies the frequency plan such as “C” for CENELEC42 (European),
“B” for German KDG/T-Systems (PAL) and “N” for NTSC (US/Japanese)

The wavelength (xx) is specified based on wavelength or ITU grid channel number.

ITU Channel No. DWDM Frequency DWDM Wavelength

22 192.2THz 1559.79n
23 192.3THz 1558.98n
24 192.4THz 1558.17n
25 192.5THz 1557.36n
26 192.6THz 1556.55n
27 192.7THz 1555.75n
28 192.8THz 1554.94n
29 192.9THz 1554.13n
30 193.0THz 1553.33n
31 193.1THz 1552.52n
32 193.2THz 1551.72n
33 193.3THz 1550.92n
34 193.4THz 1550.12n
35 193.5THz 1549.32n
36 193.6THz 1548.51n
37 193.7THz 1547.72n
38 193.8THz 1546.92n
39 193.9THz 1546.12n
40 194.0THz 1545.32n
41 194.1THz 1544.53n
42 194.2THz 1543.73n
43 194.3THz 1542.94n
44 194.4THz 1542.14n
45 194.5THz 1541.35n
46 194.6THz 1540.56n

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