Installation

Guide iMcV-MediaLinX TX/SSFX

About iMcV-MediaLinX TX/SSFX

ing media converter from IMC Networks which converts both speed and media. iMcV-MediaLinX TX/SSFX provides a single conversion between:

• 10Base-T twisted pair and 100Base-FX single-mode fiber, or

• 100Base-TX twisted pair and 100Base-FX single-mode fiber.

iMcV-MediaLinX TX/SSFX modules feature one RJ-45 connector and one SC fiber connector, and require one slot in an SNMP-manageable iMediaCenter™ or iMcV™ series chassis from IMC Networks. iMcV-MediaLinX TX/SSFX is part of IMC Networks’

iMcV Series. Installation instructions for other iMcV Modules can be found in the

“iMcV Module Installation Guide” or in their respective installation guides. Install guides, as well as a variety of product literature and other information, can be found on the IMC Networks Web site at: http://www.imcnetworks.com/tech/techsup.asp

About Single-Strand Fiber Optics

Single-strand fiber optics were developed to reduce the amount of fiber required for an installation. Typical duplex fiber requires a separate connector for the transmit and receive optics, therefore requiring fiber to be run in pairs. Single-strand fiber optics have made this unnecessary, as they transmit and receive over the same individual fiber strand, thereby reducing the amount of fiber optic cabling by one-half.

Single-strand fiber uses optics that transmit and receive on two different wavelengths. Each individual wavelength carries a different signal and, with complementary receivers on the opposite side, they are able to transmit and receive data over a single fiber run. This makes it necessary for

iMcV-MediaLinX TX/SSFX to be used in pairs (as they must have complementary transmit and receive optics on each end), or be connected to another IMC Networks single-strand product.

Configuration Instructions

End-users may configure iMcV-MediaLinX TX/SSFX modules for various features

(see chart on page 2 for information). Following are instructions for configuring both managed (via an SNMP-compatible management application like iView²) and unmanaged modules.

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To manage one or more iMcV Series modules, an SNMP agent must be also present in the chassis: iMediaCenter series chassis include embedded management;

iMcV series chassis require an iMcV-Master Module. When configuring managed modules, install the module first (see page 4 for instructions), then configure it using the management software. Within iView² for Media Converters, troubleshooting and

1 other features are configured in the Module Detail section under the picture of the module. See the iView² online help file for more information.

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Management software will override any hardware settings (e.g., jumper, switch, etc.), so you

MUST configure a module that will be managed via the software. Until a module installed in a managed chassis is configured via the software, the module (and its LEDs) may not work properly.

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Before installing, iMcV-MediaLinX TX/SSFX modules may be configured for LinkLoss,

Auto-Negotiation, duplex mode and speed. The illustration below indicates functions and locations of the DIP switches available on the iMcV-MediaLinX TX/SSFX modules.

I N S T A L L A T I O N T I P

When testing, IMC Networks recommends you test your module first in an unmanaged environment. To do this, turn the SNMP management switch to OFF on an iMediaCenter, or remove the management module from an iMcV Series chassis. Follow the unmanaged configuration instructions (above), then install the module, connect the cables and test the LEDs. When finished, reactivate management and configure the unit via the software.

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FFuunnccttiioonn

Auto-Negotiation

TX Port: HDX(ON) or FDX(OFF)

TX Port: 100(ON) or 10(OFF)

TX LinkLoss

FX LinkLoss

ON

OFF

OFF

OFF

OFF

FX Port: HDX(ON) or FDX(OFF) OFF

Factory Default Do Not Change

Selective Advertising

FFuunnccttiioonn D

OFF

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Full-Duplex - Flow Control OFF

Half-Duplex - Flow Control OFF

Factory Default Do Not Change

Auto-Negotiation & Selective Advertising Configuration Chart

Desired

Speed/Duplex

Auto-

Negotiation

Selective

Advertising

Speed Duplex

100 Mbps FDX

100 Mbps HDX

10 Mbps FDX

10 Mbps HDX

ON

ON

ON

ON

ON

ON

ON

ON

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100

10

10

FDX

HDX

FDX

HDX

NOTE: Selective Advertising is NOT an option when Auto-Negotiation is disabled.

Flow Control is used to throttle the END device to avoid dropping packets during network congestion.

Full-Duplex Flow Control will Advertise ONLY in Full-Duplex Mode. Full-Duplex Flow Control functions

ONLY if link partner (end devices) also has Flow Control. Half-Duplex Flow Control DOES NOT

Advertise .

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iMcV-MediaLinX TX/SSFX modules include the following troubleshooting features:

• FX LinkLoss • TX LinkLoss

LinkLoss is an advanced troubleshooting feature that can help you locate "silent failures" on your network. However, it is vital that you understand exactly how LinkLoss works, and how it can react in your network configuration, before attempting to install the enclosed module(s).

Installing modules without understanding the effects of LinkLoss can cause perfectly functioning units to appear flawed or even dead.

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During normal operation, link integrity pulses are transmitted by all point-to-point

Ethernet devices. When an IMC Networks media converter receives valid link pulses, it knows that the device to which it is connected is up and sending pulses, and that the cop-

2 per or fiber cable coming from that device is intact. The appropriate “LNK” (link) LED is lit to indicate this.

The IMC Networks media converter also sends out link pulses from its copper and fiber transmitters, but normally has no way of knowing whether the cable to the other device is intact and the link pulses are reaching the other end. TX LinkLoss and FX

LinkLoss allows this information to be obtained, even when physical access to a remote device (and its link integrity LED) is not available.

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FX LinkLoss is a troubleshooting feature. When a fault occurs on the fiber segment of a conversion, FX LinkLoss detects the fault and passes this information to the twisted pair segment. If a media converter is not receiving a fiber link, FX LinkLoss disables the transmitter on the media converter's twisted pair port. This results in a loss of link on the device connected to the twisted pair port.

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TX LinkLoss is another troubleshooting feature. When a fault occurs on the twisted pair segment of a conversion, TX LinkLoss detects the fault and passes this information to the fiber segment. If a media converter is not receiving a twisted pair link,

TX LinkLoss disables the transmitter on the media converter's fiber port. This results in a loss of link on the device connected to the fiber port.

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In a typical main site to remote site media conversion,

IMC Networks recommends you enable your media converters’ troubleshooting features as follows:

FX LinkLoss and TX LinkLoss Compared

Feature Fault Location Disabled LEDs

FX LinkLoss Fiber Twisted Pair

TX LinkLoss Twisted Pair Fiber

FX LinkLoss: Main Site TX LinkLoss: Remote Site

This will ensure that any faults, no matter where they occur, can be detected by an administrator located at the main site. For more information on LinkLoss, please visit the IMC Networks Web site at: hhttttpp::////w mccnneettw If you are unsure of how best to implement these features in your configuration, please contact IMC Networks technical support at (800) 624-1070 (U.S. and Canada),

+32-16-550880 (Europe) or via e-mail at: tteecchhssuuppppoorrtt@

AutoCross Feature for Twisted Pair Connections

The twisted pair port of the iMcV-MediaLinX TX/SSFX module includes AutoCross, a feature which automatically selects between a crossover workstation or passthrough/repeater hub connection depending on the connected device.

Auto-Negotiation, Duplex Mode and Speed

The twisted pair port on iMcV-MediaLinX TX/SSFX modules auto-negotiates for speed and duplex mode. These modules also provide the option of manually setting the speed and duplex mode if the connected devices do not have the ability to autonegotiate, or when Auto-Negotiation is not preferred. The fiber port does not autonegotiate; it is always 100 Mbps with Half- or Full-Duplex operation which is selectable through the switch settings or iView.

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iMcV-MediaLinX TX/SSFX ships from the factory with Auto-Negotiation enabled on the twisted pair port. In this mode, the twisted pair port negotiates for speed and duplex mode (i.e. the module autosenses 10 Mbps Full-Duplex, 10 Mbps Half-

Duplex, 100 Mbps Full-Duplex with Flow Control or 100 Mbps Half-Duplex with

Flow Control). Configure Auto-Negotiation on an iMcV-MediaLinX TX/SSFX by adjusting the DIP Switch setting (for unmanaged modules) or via the management software. Please see page 2.

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Selective Advertising, when used in combination with Auto-Negotiation, advertises only the configured speed and duplex mode for the twisted pair port. If Selective

Advertising and Auto-Negotiation are both switched ON, the twisted pair port’s speed (10 or 100 Mbps) and Duplex mode (FDX or HDX) can be separately configured per your requirements. (See the Auto-Negotiation & Selective Advertising

Configuration Chart on page 2 for optional configurations using these features.)

If a specific speed and/or duplex mode is desired, it is recommended that you use Selective

Advertising rather than Force Mode, when connecting to devices that ONLY auto-negotiate

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The twisted pair and fiber ports on iMcV-MediaLinX TX/SSFX modules can each be manually configured for either Half- or Full-Duplex operation. Before manually setting the duplex mode, Auto-Negotiation must be disabled. (Set Dip Switch 1 on S1 to the OFF position.)

• Configure the twisted pair port for Full-Duplex by setting Dip Switch 2 to the OFF position (Default).

• Configure the twisted pair port for Half-Duplex by setting Dip Switch 2 to the ON position.

• Configure the fiber port for Full-Duplex by setting Dip Switch 6 to the

OFF position (Default).

• Configure the fiber port for Half-Duplex by setting Dip Switch 6 to the

ON position.

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The twisted pair port on iMcV-MediaLinX TX/SSFX can also be manually set for 10

Mbps or 100 Mbps operation. Before manually setting the speed, Auto-Negotiation must be disabled. (Set Dip Switch 1 on S1 to the OFF position.)

• Configure the twisted pair port for 10 Mbps operation by setting

Dip Switch 3 to the OFF position.

• Configure the twisted pair port for 100 Mbps operation by setting

Dip Switch 3 to the ON position.

NOTE: The fiber port always operates at 100 Mbps.

Installing iMcV-MediaLinX, TX/SSFX Modules

iMcV-MediaLinX, TX/SSFX modules may be installed in any IMC Networks, iMcV series or iMediaCenter series chassis. Each module will take one slot in the chassis.

To install a module, remove the blank brackets covering the slots (if present) where the module is to be installed by removing the screws on the outside edges of the bracket. Slide the module into the chassis, via the card guides, until the module is seated securely in the connector. Secure the module to the chassis by tightening the captive screw. Save any “blanks” removed during installation for future use should your configuration requirements change.

Installation Troubleshooting

• During installation, first test your fiber and twisted pair connections with all troubleshooting features disabled, then enable these features, if desired, just before final installation. This will reduce the features’ interference with testing.

• When working with units where the features cannot be disabled, you must establish BOTH your twisted pair and fiber connections before the link LEDs will light!

• To test the media converters by themselves, first make sure you have an appropriate fiber patch cable, then follow these steps to test:

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Step 1: Connect the media converter to the twisted pair device with a twisted pair cable.

Step 2: Connect a single fiber cable from the local iMcV-MediaLinX TX/SSFX module to a remote site iMcV-MediaLinX TX/SSFX module.

Note: iMcV-MediaLinX TX/SSFX modules function in pairs! Step 2 requires the use of one iMcV-MediaLinX TX/SSFX (1310 XMT/1550 RCV)module at one end of the fiber run, and an iMcV-MediaLinX TX/SSFX (1550 XMT/1310 RCV) module connected at the other end of the fiber run.

Step 3: Verify that you have both twisted pair and fiber link (see LED on following page) on your media converter.

• The fiber transmitters used on IMC Networks’ media conversion modules can overdrive the receivers and cause data loss if used in installations where cable power losses are low. To verify this, measure the optical power at the receiver.

The measured power should be no greater than specified and no less than the

Average Receive Sensitivity. For complete fiber specifications, visit our Web site at: http://www.imcnetworks.com/adocs/fcs.asp

If measured power is greater than specified, install an optical attenuator to bring power within specification. Contact IMC Networks for more information.

LED Operation

T W I S T E D P A I R L E D

TX LL Glows green when TX LinkLoss is enabled.

100 Glows yellow when 100 Mbps is selected on port.

LNK/ACT

• Glows green when a link is established on port.

• Blinks green when data activity occurs.

FDX/COL

• Glows yellow when port is in Full-Duplex mode.

• Blinks yellow when modules are being operated in

Half-Duplex mode and collisions occur.

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FX LL Glows green when FX LinkLoss is enabled.

LNK/ACT

• Glows green when a link is established on port.

• Blinks green when data activity occurs.

FDX/COL

• Glows yellow when port is in Full-Duplex mode.

• Blinks yellow when modules are being operated in

Half-Duplex mode and collisions occur.

General Information

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Phone:

(949) 465-3000 or (800) 624-1070 (in the U.S. and Canada)

+32-16-550880 (Europe)

Fax:

(949) 465-3020

E-M [email protected]

Web: www.imcnetworks.com

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Please contact IMC Networks for complete warranty information.

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Environmental

Operating Temperature: 32° - 104° F (0° - 40° C)

Storage Temperature: 0° - 160° F (-20° - 70° C)

Humidity: 5 - 95% (non-condensing)

Power Consumption (Typical)

Input Load: 500mA

Fiber Optic Specifications

For fiber optic specifications, visit our Web site at: http://www.imcnetworks.com/adocs/fcs.asp

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Fiber optic transmitters and receivers are extremely susceptible to contamination by particles of dirt or dust which can obstruct the optic path and cause performance degradation. Good system performance requires clean optics and connector ferrules.

1) Use fiber patch cords (or connectors, if you terminate your own fiber) only from a reputable supplier; low-quality components can cause many hard-to-diagnose problems in an installation.

2) Dust caps are are installed at IMC Networks to ensure factory-clean optical devices.

These protective caps should not be removed until the moment of connecting the fiber cable to the device. Assure that the fiber is properly terminated, polished and free of any dust or dirt and that the location is as free from dust and dirt as possible.

3) Store spare caps in a dust-free environment such as a sealed plastic bag or box so that, when reinstalled, they do not introduce any contamination to the optics.

4) Should it be necessary to disconnect the fiber device, reinstall protective dustcaps.

5) If you suspect that the optics have been contaminated, alternate between blasting with clean, dry, compressed air and flushing with methanol to remove dirt particles.

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Electrostatic discharge (ESD) can cause damage to your add-in modules. Always observe the following precautions when installing or handling an add-in module or any board assembly.

1) Do not remove unit from its protective packaging until you’re ready to install it.

2) Wear an ESD wrist grounding strap before handling any module or component. If you do not have a wrist strap, maintain grounded contact with the system unit throughout any procedure requiring ESD protection.

WARNING! Integrated circuits and fiber optic components are extremely susceptible to electrostatic discharge damage. Do not handle these components directly unless you are a qualified service technician and use tools and techniques that conform to accepted industry practices.

3) Hold boards by the edges only; do not touch the electronic components or gold connectors.

4) After removal, always place the boards on a grounded, static-free surface, ESD pad or in a proper ESD bag. Do not slide the board over any surface.

19772 Pauling • Foothill Ranch, CA 92610-2611 USA

TEL: (949) 465-3000 • FAX: (949) 465-3020 www.imcnetworks.com

© 2002-2003 IMC Networks. All rights reserved.

The information in this document is subject to change without notice. IMC Networks assumes no responsibility for any errors that may appear in this document. iMcV-M

Other brands or product names may be trademarks and are the property of their respective companies.

Document Number 56-80934-00-A4 March 2003

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