Net Optics OM315-GIG-R User manual

Installation Guide for
GigaBit Media Converter
Models OM315-GIG-R, OM315-GIG-L-R, OM5555-GIG-R,
OM3131-GIG-R, OM315-ZXSX-R
Doc IGNETOM315/5555/3131-GIG/L/ZXSX-R Revised 03/05

Installation Guide for GigaBit Media Converter
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connecting the GigaBit Media Converter to the Network . . . . . . . . . . . . . . . . . 3
Configuration Guidelines for Link Fault Signaling (LFS) Operation . . . . . . . . . 6
Safety Notes on Laser Singlemode and Multimode-type Converters . . . . . . . . . 7
GigaBit Ethernet Connection Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation Guide for GigaBit Media Converter
PLEASE READ THESE LEGAL NOTICES CAREFULLY.
By using a Net Optics GigaBit Media Converter you agree to the terms and conditions of usage set forth
by Net Optics, Inc.
No licenses, express or implied, are granted with respect to any of the technology described in this
manual. Net Optics retains all intellectual property rights associated with the technology described in
this manual. This manual is intended to assist application in installing Net Optics products into your
network.
Trademarks and Copyrights
© 2005 by Net Optics, Inc. Net Optics® is a registered trademark of Net Optics, Inc. Additional com-
pany and product names may be trademarks or registered trademarks of the individual companies and
are respectfully acknowledged.
Additional Information
Net Optics, Inc. reserves the right to make changes in specifications and other information contained
in this document without prior notice. Every effort has been made to ensure that the information in this
document is accurate. Net Optics is not responsible for typographical errors.

Installation Guide for GigaBit Media Converter
1
Introduction
Thank you for purchasing the most versatile media converter available today.
Net Optics GigaBit Media Converters enable conversion between GigaBit
Fiber signals. Five models are available: an OM315-GIG and an OM315-
GIG-L for conversion between GigaBit LX and SX; an OM315-ZXSX for
conversion between GigaBit ZX to SX; an OM5555-GIG for amplification
of a GigaBit SX signal (GigaBit SX to SX); and an OM3131-GIG for
amplification of a GigaBit LX signal (GigaBit LX to LX).
Key Features
Compatibility
• Compatible with all major manufacturer's network equipment.
Technology
• Net Optics GigaBit Media Converters support transparent conversion of
optical signals for data rates at 1000 Mbps.
• Includes automatic Link Fault Signaling. Link Fault Signaling alerts
each host (router, switch, server) attached to a Net Optics GigaBit Media
Converter, if any of the intermediate links that separate them have failed.
If one link fails, or is not connected, the converter automatically disables
the forward link to the next device, until the unit is connected or the link is
repaired.
• Includes Clock and Data Recovery (CDR) capability for superior perfor-
mance. This ensures that the overall jitter budget is not exceeded when
deploying pairs of converters.
Ease of Use
• All network connections are front-mounted for easy installation and
operation. Only the power connectors are side-mounted.
• Multiple LED indicators confirm link status.
Support
• Throughout the lifetime of your purchase, Net Optics offers free technical
support (and has done so since our start in 1996!) Our technical support
team is available from 8 am to 5 pm Pacific Time, Monday through Friday
at [phone] and via email at [email protected]. FAQs are
also available on Net Optics website at www.netoptics.com.

Installation Guide for GigaBit Media Converter
2
Product Diagram
Figure 1.
LED Indicators Fiber Ports
OM 31 5
Mu lt im od e to Si ng le mo de C on ver te r
www.netoptics.com
TX RX TX RX
Multimode Singlemode
MM SM
LF
+5VDC
1.5 AMP

Installation Guide for GigaBit Media Converter
3
Connecting the GigaBit Media Converter to the
Network
1. Unpack the GigaBit Media Converter, verify that you have all components,
and obtain the required cables needed to successfully install the unit.
2. Multimode Ports: Using a duplex SC multimode cable, connect the
appropriate switch, server, or router to the GigaBit Media Converter's
Multimode Port.
3. Singlemode Ports: Using a duplex SC singlemode cable, connect the
appropriate switch, server, or router to the GigaBit Media Converter's
Singlemode Port.
4. Supply power to the GigaBit Media Converter using the power supply
included with the unit.
5. Compare the LEDs on the Media Converter to the chart below to verify
correct setup.
• PWR: Power.
Power LED (in side of unit) illuminates green when device is
powered on.
• MM: Multimode Fiber Link.
This LED illuminates green when a good fiber optic link is established
(applies to OM315-GIG and OM5555-GIG, OM315-GIG-ZXSX).
• SM: Singlemode Fiber Link.
This LED illuminates green when a good fiber optic link is established
(applies to OM315-GIG and OM3131-GIG, OM315-GIG-ZXSX).
• LF: Link Fault.
This LED illuminates yellow when a link fault is present. *
* not enabled for OM-5555-GIG model.
Note: The use of singlemode or multimode cabling is determined by the
GigaBit Media Converter model. The 1000BaseSX multimode ports or
1000BaseLX singlemode ports must be connected via 50/125µm, 62.5/125µm,
or 100/140µm fiber.

Installation Guide for GigaBit Media Converter
4
Connecting the GigaBit Media Converter to the
Network
When installing the GigaBit Media Converter, care must be taken in choosing
the appropriate cabling to avoid Differential Mode Delay (DMD) effects.
DMD is caused by singlemode, (1310 nanometer) laser point sources
launching into multimode cable. Optical power is concentrated in the center of
the fiber core, propagating in less than 5% of possible modal paths. This can
result in reduced bandwidth and/or the appearance of individual data pulses,
refracting into multiple, overlapping, light pulses at the receiver end, causing
CRC errors.
The connection requires a Mode Conditioning patch cable to provide
the Conditioned Launch necessary to prevent (DMD) effects. Mode
Conditioning patch cables are not used with short wave length (850 nano-
meter) lasers. Note that fiber cable is typically certified for a particular
bandwidth using light emitting diodes (LEDs) that provide the “Overfilled
Launch” condition i.e. illuminate all possible modes and fibers.
For additional details see the Restricted Launch Specification defined by the
Telecommunications Industry Association. The TIA FO-2.2.1 Committee
has released two standards: (1) FOTP-203: Launched Power Distribution
Measurement Procedure for Graded-Index Multimode Fiber Transmitters, and
(2) FOTP-204: Measurement of Bandwidth on Multimode Fiber.

Installation Guide for GigaBit Media Converter
5
100Ba seTX/ 8
F DDIFi berDA S
A B
OB
SY
1x 2 x 3x 4x 5x 6 x 7x 8x
AC
1x 2x 3x 4x 5x 6 x 7x 8x 9x 10x 11x 1 2x 13x 14x 15 x1 6x 17x 1 8x 19x 20x 21 x 22x 23x 24x
10Ba seT
100Ba seTX/ 8
F DDIFi berDA S
A B
OB
SY
B
1x 2 x 3x 4x 5x 6 x 7x 8x
AC
1x 2x 3x 4x 5x 6 x 7x 8x 9x 10x 11x 1 2x 13x 14x 15 x1 6x 17x 1 8x 19x 20x 21 x 22x 23x 24x
CIS MS
1Connect Fiber Ports
(OM315-GIG shown)
Rack-Mount Frame
Holds 3 Converters
Rx
Tx
Rx
Tx
Tx
Rx
Tx
Rx
To switch,
server, or router
To switch,
server, or router
OM3 15 Giga bit
Mul timod e to Sin glemo de Conv erter
www.netoptics.com
TX RX TX RX
Multimode Singlemode
MM SM
LF
+5VDC
1.5AMP
OM3 15 Giga bit
Mul timod e to Sin glemo de Conv erter
www.netoptics.com
TX RX TX RX
Multimode Singlemode
MM SM
LF
+5VDC
1.5AMP
OM3 15 Giga bit
Mul timod e to Sin glemo de Conv erter
www.netoptics.com
TX RX TX RX
Multimode Singlemode
MM SM
LF
+5VDC
1.5AMP
Duplex SC/SC
Multimode Cable
Duplex SC/SC
Singlemode Cable
Connecting the GigaBit Media Converter to the
Network
Figure 2.

Installation Guide for GigaBit Media Converter
6
Configuration Guidelines for Link Fault Signaling
(LFS) Operation
Link Fault Signaling (LFS) circuitry provides visual indication of link
condition on both segments, as well as alerting each end host device when a
remote link (segment) is down. If either segment experiences a link failure,
the good segment port LED will remain lit. BUT, the Link idle signal going
to the next, remaining device on the GOOD segment, is instantly disabled,
turning off its Link LED. The OM-GIG converter detects the loss of link on
one segment and turns off the link signal to the next segment, even though the
second segment is intact.
The missing link signal alerts the end device(s) that a fault has occurred.
Either end can then establish an alternate connection path, using Spanning
Tree protocol. Once the original fault is corrected, all segment links are re-
established and the Link LEDs function in the normal manner.
All connections between the converter and end devices must be made before a
good end-to-end link can be established. A normal good link on both segments
will be indicated by both link LEDs lit.
At least one end device must provide a link signal to initiate a link across
all segments. If one link segment is broken, the associated link LED will no
longer be lit. The good (unbroken) segmentʼs link LED will remain lit and the
Link Idle signal to the next segment will turn off.
When the converter loses a link signal from either of the two devices attached
to it, the converter turns off (ceases to forward) the port link signal to the
NEXT segment (device). When the fault is corrected,
all links will be automatically re-established.

Installation Guide for GigaBit Media Converter
7
Safety Notes on Laser Singlemode and Multimode-
type Connectors
The OM315-GIG and the OM315-GIG-L each uses one 850nm laser (Multi-
mode Port) and one 1310 nm laser (Singlemode Port) connector.
The OM5555-GIG uses (visible) 850 nm wave length, eye-safe type, laser
multimode connectors.
The OM3131-GIG uses (invisible) 1310 nm wave length, eye-safe type, laser
singlemode connectors.
The OM315-ZXSX uses one 850nm laser (Multimode Port) and one 1550 nm
laser (Singlemode Port) connector.
Observe caution when deploying equipment using laser optics. Non-eye safe
laser devices may be inadvertently connected to cabling that is intended to
be attached to eye-safe 850 nm, 1310 nm, or 1550 nm laser driven equip-
ment. This poses a risk for eye and equipment damage. All fiber optic cables
(connectors) that are or may be connected to a laser source should be clearly
labeled and assumed to be connected to non-eye safe laser optics.
Note: Do not connect non-eye safe laser devices to eye-safe class equipment.
Non-eye safe laser driven devices, besides damaging eye sight, can perma-
nently damage eye-safe (low-power laser) rated equipment. Such damage will
not be covered by warranty. Net Optics, Inc. disclaims all liability for dam-
ages arising from mis-use or incorrect installation of laser driven equipment.
CAUTION: NEVER ATTEMPT TO VERIFY ANY FIBER OPTIC
CONNECTION BY LOOKING DIRECTLY INTO A FIBER-OPTIC PORT
OR CABLE. IF THE LIGHT SOURCE IS A NON-EYE SAFE, LASER
EMITTER, PERMANENT EYE DAMAGE MAY RESULT.
NEVER LOOK INTO THE BORE OF A FIBER OPTIC CONNECTOR!

Installation Guide for GigaBit Media Converter
8
GigaBit Ethernet Connection Distances
1000BASE-SX (850 nm laser)
Fiber Core
Diameter Type Fiber Bandwidth Mhz/km Distance
62.5 µm Multimode 160 Mhz/km 2 to 220 m
62.5 µm Multimode 200 Mhz/km 2 to 275 m
50.0 µm Multimode 400 Mhz/km 2 to 500 m
50.0 µm Multimode 500 Mhz/km 2 to 550 m
1000BASE-LX (1310 nm laser)
Fiber Core
Diameter Type Fiber Bandwidth Mhz/km Distance
8.5 µm Singlemode n/a up to 10 Km
1000BASE-ZX (1550 nm laser)
Fiber Core
Diameter Type Fiber Bandwidth Mhz/km Distance
8.5 µm Singlemode n/a up to 70 Km

Installation Guide for GigaBit Media Converter
9
Specifications
Operating Specifications
Operating Temperature: 0˚C to 55˚C
Storage Temperature: -10˚C to 70˚C
Relative Humidity: 10% min, 95% max, non-condensing
Mechanical Specifications
Power Supply:
Input: 100-240 VAC, 0.6A, 50-60 Hz
(AC100-125V~30VA, 50-60 Hz, for Japan)
Output: 5V, 2A (5V, 2.4A for UK and Japan)
Dimensions: 1.0” high x 5.3” deep x 2.9” wide
Connectors:
(2) Duplex SC connectors
Multimode Fiber Optic Interface
(applies to OM315-GIG, OM315-GIG-L and OM5555-GIG,
OM315-ZXSX)
Fiber Type: Multimode Corning 62.5µm, wavelength 850nm
Connector: Class I, eye-safe, laser emitter type. These Class I Lasers
conform to the applicable requirements per US 21 CFR (J) and
EN 60825-1, also UL 1950 applications.
Optical Transmitter Wave Length: 850 nm nominal
Output Power: -9.5 dB min, -4.0 dB max
Optical Receiver Input Sensitivity: 0.0 dB min, -18.5 dB typical, -17.0 dB max
Singlemode Fiber Optic Interface
(applies to OM315-GIG and OM3131-GIG)
Fiber Type: Singlemode Corning 8.5µm, wavelength 1310/1550 nm
Connector: Class I, eye-safe, laser emitter type. These Class I Lasers
conform to the applicable requirements per US 21 CFR (J) and
EN 60825-1, also UL 1950 applications.
Optical Transmitter Wave Length: 1310 nm nominal
Output Power: -10.0 dB min, -3.0 dB max
Optical Receiver Input Sensitivity: -3.0 dB min, -20.0 dB max

Installation Guide for GigaBit Media Converter
10
Specifications
Singlemode Fiber Optic Interface
(applies to OM315-GIG-L)
Fiber Type: Singlemode Corning 8.5µm, wavelength 1310 nm
Connector: Class I, eye-safe, laser emitter type. These Class I Lasers
conform to the applicable requirements per US 21 CFR (J) and
EN 60825-1, also UL 1950 applications.
Optical Transmitter Wave Length: 1310 nm nominal
Output Power: -5.0 dB min, 0.0 dB max
Optical Receiver Input Sensitivity: -24.0 dB min, -3.0 dB max
Singlemode Fiber Optic Interface
(applies to OM315-ZXSX)
Fiber Type: Singlemode Corning 8.5µm, wavelength 1550 nm
Connector: Class I, eye-safe, laser emitter type. These Class I Lasers
conform to the applicable requirements per US 21 CFR (J) and
EN 60825-1, also UL 1950 applications.
Optical Transmitter Wave Length: 1550 nm nominal
Output Power: -5.0 dB min, 0.0 dB max
Optical Receiver Input Sensitivity: -24.0 dB min, -3.0 dB max
Compliance
Gigabit Ethernet OM-GIG and CCM series converters comply with all
applicable IEEE 802.3u specifications. Net Opticsʼ converters are designed to
comply with all the following safety, emissions and susceptibility specifica-
tions: UL 1950, CSA-C22.2 No. 950-93, CE Mark EN60950 and EN55022,
and FCC Class A.

Installation Guide for GigaBit Media Converter
11
Limitations on Warranty and Liability
Net Optics offers a limited warranty for all its products. IN NO EVENT SHALL NET OPTICS, INC.
BE LIABLE FOR ANY DAMAGES INCURRED BY THE USE OF THE PRODUCTS (INCLUD-
ING BOTH HARDWARE AND SOFTWARE) DESCRIBED IN THIS MANUAL, OR BY ANY
DEFECT OR INACCURACY IN THIS MANUAL ITSELF. THIS INCLUDES BUT IS NOT LIM-
ITED TO LOST PROFITS, LOST SAVINGS, AND ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES ARISING FROM THE USE OR INABILITY TO USE THIS PRODUCT, even if Net
Optics has been advised of the possibility of such damages. Some states do not allow the exclusion
or limitation of implied warranties or liability for incidental or consequential damages, so the above
limitation or exclusion may not apply to you.
Net Optics, Inc. warrants this GigaBit Media Converter to be in good working order for a period of
ONE YEAR from the date of purchase from Net Optics or an authorized Net Optics reseller.
Should the unit fail anytime during the said ONE YEAR period, Net Optics will, at its discretion,
repair or replace the product. This warranty is limited to defects in workmanship and materials and
does not cover damage from accident, disaster, misuse, abuse or unauthorized modifications.
If you have a problem and require service, please call the number listed at the end of this section and
speak with our technical service personnel. They may provide you with an RMA number, which must
accompany any returned product. Return the product in its original shipping container (or equivalent)
insured and with proof of purchase.
THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF
ALL OTHERS, EXPRESS OR IMPLIED. No Net Optics reseller, agent, or employee is authorized
to make any modification, extension, or addition to this warranty.
Net Optics is always open to any comments or suggestions you may have about its products and/or
this manual.
Send correspondence to
Net Optics, Inc.
1130 Mountain View Alviso Road
Sunnyvale, CA 94089-2237 USA
Telephone: [phone]
Fax: [phone]
Email: [email protected]
Internet: www.netoptics.com
All Rights Reserved. Printed in the U.S.A. No part of this publication may be reproduced, transmit-
ted, transcribed, stored in a retrieval system, or translated into any language or computer language,
in any form, by any means, without prior written consent of Net Optics, Inc., with the following
exceptions: Any person is authorized to store documentation on a single computer for personal use
only and that the documentation contains Net Opticsʼ copyright notice.

© 2005 by Net Optics, Inc. All Rights Reserved.
www.netoptics.com