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Installation Guide for GigaBit Media Converter

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.

Содержание OM3131-GIG-R

Страница 1: ...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 ...

Страница 2: ...y 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 ...

Страница 3: ...l 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 ...

Страница 4: ... 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 ...

Страница 5: ...lation Guide for GigaBit Media Converter 2 Product Diagram Figure 1 LED Indicators Fiber Ports OM315 Multimode to Singlemode Converter www netoptics com TX RX TX RX Multimode Singlemode MM SM LF 5VDC 1 5 AMP ...

Страница 6: ...upply 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 go...

Страница 7: ...ulses 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 condit...

Страница 8: ...0 x 2 1 x 2 2 x 2 3 x 2 4 x C I S M S 1 Connect 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 OM315 Gigabit Multimode to Singlemode Converter www netoptics com TX RX TX RX Multimode Singlemode MM SM LF 5VDC 1 5 AMP OM315 Gigabit Multimode to Singlemode Converter www netoptics com TX RX TX RX Multimode S...

Страница 9: ...ither 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...

Страница 10: ... 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 sigh...

Страница 11: ...timode 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 ...

Страница 12: ... 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...

Страница 13: ...tic 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 Compl...

Страница 14: ...amage 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 RMAnumber which must accompany any returned product Return the product in its original shipping container or equivalent insured and with proof of purchase...

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