KTI Networks KGC-301 User manual

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10/100/1000BASE-T to Dual-speed Fiber
Ethernet Media Converter
KGC-301
Installation Guide
DOC.200408

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(C) 2020 KTI Networks Inc. All rights reserved. No part of this documentation may be reproduced in
any form or by any means or used to make any directive work (such as translation or transformation)
without permission from KTI Networks Inc.
KTI Networks Inc. reserves the right to revise this documentation and to make changes in content from
time to time without obligation on the part of KTI Networks Inc. to provide notification of such
revision or change.
For more information, contact:
15F-7, No. 79, Sec. 1, Hsin-Tai-Wu RD
His-chih, New Taipei City, Taiwan
Fax: [phone]
E-mail: [email protected].tw
URL: http://www.ktinet.com.tw/

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The information contained in this document is subject to change without prior notice. Copyright (C)
All Rights Reserved.
TRADEMARKS
Ethernet is a registered trademark of Xerox Corp.
FCC WARNING AND NOTICE
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and if not installed and used in accordance with the instruction manual may cause
harmful interference in which case the user will be required to correct the interference at his own expense.
NOTICE:
(1) The changes or modifications not expressively approved by the party responsible for compliance could void
the user's authority to operate the equipment.
(2) Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission
limits.
47 CFR FCC Part 15, Subpart B, Class A
ICES-003; 2016 Issue 6, Class A
ANSI C63.4:2014
CE NOTICE
Marking by the symbol indicates compliance of this equipment to the EMC directive of the European
Community. Such marking is indicative that this equipment meets or exceeds the following technical
standards:
EMC Directive of 2014/30/EU
EN 55032, CISPR32, EN 61000-3-2, EN 61000-3-3
EN 55024, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6,
IEC 61000-4-8, IEC 61000-4-11
VCCI-A Notice
VCCI 32-1, VCCI-CISPR32: 2016 Class A

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Table of Contents
1. Introduction...................................................................................................................................5
1.1 Features.............................................................................................................. 6
1.2 Product Panels.................................................................................................... 6
1.3 Specifications...................................................................................................... 6
2. Installation.....................................................................................................................................9
2.1 Unpacking........................................................................................................... 9
2.2 Safety Cautions................................................................................................... 9
2.3 Mounting the Media Converter.......................................................................... 10
2.4 Applying Power................................................................................................. 12
2.5 Making UTP Connections.................................................................................. 13
2.5.1 UTP Configuration DIP Switches.................................................................... 13
2.6 Making Fiber Connection .................................................................................. 14
2.6.1 SFP Configuration DIP Switch (SW4)............................................................. 15
2.7 LED Indication................................................................................................... 15
3 Media Converter Functions ........................................................................................................16
3.1 Line Rate Conversion........................................................................................ 16
3.2 Packet Forwarding............................................................................................ 16
3.3 Link Fault Pass Through Function..................................................................... 17
3.3.1 LFPT Configuration DIP Switch (SW5)........................................................... 18
Appendix A. Models & Optical Specifications.............................................................................19

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1. Introduction
The KGC-301 is Gigabit Ethernet media converter series which provide the following features:
Data Conversion between different Media types and Speed
The media converter supports the following conversions:
1000Mbps (1000BASE-T) copper to/from 1000Mbps (1000BASE-X) fiber
100Mbps (100BASE-TX) copper to/from 1000Mbps (1000BASE-X) fiber
10Mbps (10BASE-T) copper to/from 1000Mbps (1000BASE-X) fiber
1000Mbps (1000BASE-T) copper to/from 100Mbps (100BASE-FX) fiber
100Mbps (100BASE-TX) copper to/from 100Mbps (100BASE-FX) fiber
10Mbps (10BASE-T) copper to/from 100Mbps (100BASE-FX) fiber
Smart Forwarding
If the data line rates configured are same on the copper port and the fiber port, the fast direct
conversion forwarding mode is used. Otherwise, store-and-forward mode is adopted automatically.
Dual-speed Fiber Connectivity
The SFP fiber port slot can be installed with different optional SFP optical fiber transceiver to support
multimode or single mode fiber for short reach up to long reach distance. The SFP can support both
1000BASE-X and 100BASE-FX fiber connection. This feature extends a wider application range with
this device.
Link Fault Pass-Through
This feature can force the link to shut down as soon as it notices that the other link has failed. It allows
a link partner on one cable segment can notice a link fault occurred on the other segment and give
application a chance to react.

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1.1 Features
Basic functions
Tri-speed 10/100/1000Mbps copper to dual-speed 1G/100Mbps fiber conversion
Support full wire speed conversion
Support jumbo frame conversion
Provide direct conversion with shortest latency between two links at same line rate
Support transparent conversion of any packet types with no packet modification
Support auto-negotiation with link partners
Provide link fault pass through function for media converter applications
Provide SFP slot on fiber port for mounting variety of fiber options
Support center chassis installation to achieve the advantages of central power, optional power
redundancy and management
1.2 Product Panels
The following figure illustrates the front panel and rear panel of the device:
Front
Rear
1.3 Specifications
UTP - 10/100/1000 Twisted-pair Copper Port
Compliance IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX, IEEE 802.3ab 1000Base-T
Connectors Shielded RJ-45 jacks
Pin assignments Auto MDI/MDI-X detection
Configuration Auto-negotiation, manual DIP switch settings

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Transmission rate 10Mbps, 100Mbps, 1000Mbps
Duplex support Full/Half duplex
Network cable Cat.5 UTP
SFP - Dual-speed Fiber Port
Compliance IEEE 802.3z 1000Base-X, IEEE 802.3u 100BASE-FX
Connectors SFP for optional SFP type fiber transceivers
Configuration Auto speed detection, Fixed on auto-negotiation 1000Mbps Full duplex
Transmission rate 1000Mbps, 100Mbps (Dual-speed support)
Network cables MMF 50/125m 62.5/125m, SMF 9/125m
Eye safety IEC 825 compliant
LED Indicators
PWR Power status
TP-LINK UTP Copper port link and activity status
TP-1G UTP Copper port data rate status
FX-LINK SFP fiber port link and activity status
FX-1G SFP fiber port data rate status
MCU Diagnostic status
SW - Configuration DIP Switches
SW1-SW3 UTP copper port configuration
SW4 SFP fiber port configuration
SW5 Link Fault Pass Through function setting
CENTER - Center Interface
Interface For center chassis mounting
Connector FutureBus
Basic Functions
MAC Addresses Support up to 1K entries under store-and-forward mode
No limitation under direct conversion mode
Forwarding technology Direct conversion mode when copper port and fiber port are at same line rate
Store and forward mode when two ports are at different line rates
Forwarded packet types Transparent forwarding for all packet types under direct conversion mode

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All packet types except PAUSE packets under store and forward mode
Maximum packet length Jumbo frame support up to 16Kbytes
Flow control Active under store and forward mode
IEEE 802.3x pause frame base for full duplex operation
Back pressure for half duplex operation
DC IN - DC Power Input
Interfaces DC Jack ( -D 6.3mm / + D 2.0mm)
Operating Input Voltages +5 ~ +12VDC(+/-5%)
Power consumption 2W max. @12V
Mechanical
Dimension (base) 108 x 72.5 x 23mm
Housing Enclosed metal with no fan
Mounting Desktop mounting, wall mounting, optional Din-rail mounting
Environmental
Operating Temperature Typical -40oC ~ +70oC (Main device)
Storage Temperature -40oC ~ +85oC
Relative Humidity 5% ~ 90%
Approvals
FCC Part 15 rule Class A
CE EMC, CISPR32 Class A
VCCI Class A
Safety LVD, IEC 62368-1, EN 62368-1
IEEE 802.3 Isolation RJ-45 interface vs. Frame Ground
Isolation RJ-45 interface vs. DC IN interface
Isolation test –Withstand voltage test, 1.5KVAC 10mA 60 seconds
IEC 60068-2-64 Vibration
IEC 60068-2-27 Shock test

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2. Installation
2.1 Unpacking
The product package contains:
The device unit
One AC power adapter
QR code label linking to product documentation cloud
2.2 Safety Cautions
To reduce the risk of bodily injury, electrical shock, fire and damage to the product, observe the
following precautions.
Do not service any product except as explained in your system documentation.
Opening or removing covers may expose you to electrical shock.
Only a trained service technician should service components inside these
compartments.
If any of the following conditions occur, unplug the product from the electrical
outlet and replace the part or contact your trained service provider:
-The power cable, extension cable, or plug is damaged.
-An object has fallen into the product.
-The product has been exposed to water.
-The product has been dropped or damaged.
-The product does not operate correctly when you follow the operating
instructions.
Do not push any objects into the openings of your system. Doing so can cause fire
or electric shock by shorting out interior components.
Operate the product only from the type of external power source indicated on the
electrical ratings label. If you are not sure of the type of power source required,
consult your service provider or local power company.

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2.3 Mounting the Media Converter
The media converter can be mounted on a desktop or shelf or a wall. Make sure that there is proper
heat dissipation from and adequate ventilation around the device. Do not place heavy objects on the
device.
Desktop mounting
Wall mounting
The device has one mounting wall on the bottom side to support wall mounting.

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Din-Rail mounting
For a Din-Rail chassis, the device can support mounting on a Din-Rail. An optional Din-Rail bracket,
KC-3DR can be purchased separately. The following figure shows an example after bracket
installation:
Center rack mounting
The media converter can also be installed in KC-1300 center chassis. The center chassis provides the
power supply to the media converter also with optional power redundancy. Up to 16 media converter
devices can be installed in one chassis.
Unscrew and remove the cover of the center connector before inserting the media converter into the
chassis. Secondly, install the slot bracket that is provided in the center chassis package on the media
converter. Then insert the device into one available slot of the center chassis. Refer to the operation
manual of center chassis KC-1300 for more information.

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2.4 Applying Power
Before you begin the installation, check the AC voltage of your area. The AC power adapter which is
used to supply the DC power for the unit should have the AC voltage matching the commercial power
voltage in your area.
Steps to apply the power to the device are:
1. Connect power adapter DC plug to the DC input jack located on the back of the device before
connecting to the AC outlet.
2. Connect the power adapter to the AC outlet.
3. Check Power LED indication.
Note: Before you begin the installation, check the AC voltage of your area. The AC power
adapter which is used to supply the DC power for the device should have the AC voltage
matching the commercial power voltage in your area.

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2.5 Making UTP Connections
The 10/100/1000 twisted-pair copper port supports the following connection types and distances:
Network Cables
10BASE-T: 2-pair UTP Cat. 3,4,5 , EIA/TIA-568B 100-ohm
100BASE-TX: 2-pair UTP Cat. 5, EIA/TIA-568B 100-ohm
1000BASE-T: 4-pair UTP Cat. 5 or higher (Cat.5e is recommended), EIA/TIA-568B 100-ohm
Link distance: Up to 100 meters
Auto MDI/MDI-X Function
This function allows the port to auto-detect the twisted-pair signals and adapts itself to form a valid
MDI to MDI-X connection with the remote connected device automatically. No matter a straight
through cable or crossover cable is connected, the ports can sense the receiving pair automatically and
configure itself to match the rule for MDI to MDI-X connection. It simplifies the cable installation.
Auto-negotiation Function
The port is featured with auto-negotiation function and full capability to support connection to any
Ethernet devices. The port performs a negotiation process for the speed and duplex configuration with
the connected device automatically when each time a link is being established. If the connected device
is also auto-negotiation capable, both devices will come out the best configuration after negotiation
process. If the connected device is incapable in auto-negotiation, the port will sense the speed and use
half duplex for the connection.
2.5.1 UTP Configuration DIP Switches
For making proper connection to an auto-negotiation INCAPABLE device, it is suggested to set port
configuration to one of non-auto (forced) operating modes and specify speed and duplex mode which
match the configuration used by the connected device. Any change of DIP SW1~SW3 setting will take
effect immediately even when the device is in operation.
DIP SW (switches) SW1, SW2, SW3
SW1
SW2
SW3
Mode
OFF
OFF
OFF
Auto 10/100/1000 FDX/HDX (Factory default)
OFF
OFF
ON
Fixed 1000M FDX *
ON
OFF
OFF
Fixed 100M FDX
ON
OFF
ON
Fixed 100M HDX
ON
ON
OFF
Fixed 10M FDX
ON
ON
ON
Fixed 10M HDX
Auto: Auto-negotiation enabled
*: auto-negotiation disabled

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2.6 Making Fiber Connection
The mini-GBIC SFP port must be installed with an SFP fiber transceiver for making fiber connection.
Your device may come with an SFP transceiver pre-installed when it was shipped.
Installing SFP Fiber Transceiver
To install an SFP fiber transceiver into the SFP port, the steps are:
1. Turn off the power to the device.
2. Insert the SFP fiber transceiver into the SFP port. Normally, a bail is provided for every SFP
transceiver. Hold the bail and make insertion.
3. Until the SFP transceiver is seated securely in the slot, place the bail in lock position.
Dual Speed Support
The SFP port supports 1000BASE-X based SFP fiber transceivers and 100BASE-FX based SFP fiber
transceivers. Select “Auto”for port configuration. The system will detect the type of the installed
transceiver and configure the port properly and automatically by default.
Connecting Fiber Cables
LC connectors are commonly equipped on most SFP transceiver modules. Identify TX and RX
connector before making cable connection. The following figure illustrates a connection example
between two fiber ports:
Make sure the Rx-to-Tx connection rule is followed on the both ends of the fiber cable.
Network Cables
Multimode (MMF) - 50/125m, 62.5/125m
Single mode (SMF) - 9/125m

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2.6.1 SFP Configuration DIP Switch (SW4)
SW4
Mode
OFF
1000Mbps, Full duplex, Auto-negotiation enabled (Factory default)
ON
Auto detection
Full duplex Line rate, 1000Mbps or 100Mbps is determined by detecting the data
rate information embedded in the installed SFP transceiver
Note: The setting change of SW4 takes effect after next device power-up.
2.7 LED Indication
LED
State
Interpretation
PWR
ON
The device is powered on.
TP-LINK
OFF
The UTP port is link down.
ON
The UTP port is link up.
TP-1G
OFF
The UTP port line rate is 10 or 100Mbps.
ON
The UTP port line rate is 1000Mbps.
FX-LINK
OFF
The SFP port is link down.
ON
The SFP port is link up.
FX-1G
OFF
The SFP port line rate is 100Mbps.
ON
The SFP port line rate is 1000Mbps.
MCU
ON
No diagnostic error detected
Blink
Diagnostic error detected

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3 Media Converter Functions
3.1 Line Rate Conversion
The device supports the following data conversions between fiber cable and twisted-pair Cat.5 (copper)
cable:
The data line rate on twisted-pair copper segment depends on the link speed finally established with
the link partner. However, the line rate can be fixed at one specific line rate by setting UTP
configuration DIP switches (SW1 ~ SW3).
The data line rate on fiber segment is fixed at 1000Mbps by factory default. However, the line rate
configuration, called auto-detection mode can be set at line rate that matches the type of the installed
SFP fiber transceiver by setting SFP configuration DIP switch (SW4).
3.2 Packet Forwarding
The packet forwarding method between twisted-pair port and SFP fiber port of the device depends on
the configured data line rates on both ports. Refer to the following table:
Configuration
UTP & SFP at same line rate
UTP & SFP at different line rates
Forwarding technology used
Direct conversion
Store-and-forward
Advantage
The shortest latency
Bad packets are filtered
Jumbo frame forwarding
Support
Support
Performance
Full wire speed
Full wire speed
Forwarded packet types
All (Transparently)
All except PAUSE frame
Flow control
Disabled
Enabled
Packet storm protection
No
Enabled for
Broadcast storm
Multicast storm
ICMP storm
ARP storm

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3.3 Link Fault Pass Through Function
When the Link Fault Pass Through (LFPT) function is enabled. When the media converter detects a
link fault on one port segment, it will force the other port segment link down. It looks like that a link
fault is passed from one port to the other.
Scenario 1: The following drawing illustrates a link fault occurs on the fiber cable (any one cable in a
duplex fiber connection). The link fault is forwarded to both copper link partners finally by LFPT
operation of two media converters.
Both Ethernet devices will also detect a link fault on each Cat.5 connection, although the real fault
occurs on the fiber connection exactly.
Scenario 2: The following drawing illustrates a real link fault occurs on one Cat.5 and the link fault is
passed to the other Cat.5 over two converters and the fiber cable by LFPT operation. Finally, the other
link partner also detects a link fault.
Advantage
This function allows two remote link partners of the media converters detect the link fault finally no
matter where the exact fault occurs. It allows the upper application takes necessary action in case a real
link fault occurs in any cable segment.

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3.3.1 LFPT Configuration DIP Switch (SW5)
The LFPT function can be enabled by setting SW5 as below:
SW5
LFPT
OFF
Disabled (Factory default)
ON
Enabled
Note: The setting change of SW5 takes effect after next device power-up.
Under certain condition, LFPT function is not supported. See the following table:
SW4
SFP Port Mode
LFPT Function
OFF
1000Mbps, Full duplex,
Auto-negotiation enabled (Factory
default)
Supported
ON
Auto detection
Full duplex Line rate, 1000Mbps or
100Mbps is determined by detecting
the data rate information embedded
in the installed SFP transceiver
Supported only at line rate of 1000Mbps
(Not at line rate of 100Mbps)

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Appendix A. Models & Optical Specifications
Model Definition
KGC-301 Managed model with no pre-installed SFP transceiver
KGC-301-xxxx Managed model with pre-installed SFP transceiver
SFP with 1000BASE-X fiber transceiver
Model Ext. FiberCon. Reference Fiber Distance (Typ.)
-SX 1000M LC Duplex MMF 500m
-LX 1000M LC Duplex MMF 550m, SMF 10km
-LX20 1000M LC Duplex SMF 20km
-LX30 1000M LC Duplex SMF 30km
-LX50 1000M LC Duplex SMF 50km
-LX70 1000M LC Duplex SMF 70km
Bi-directional WDM over single SMF
-W3510 1000M LC Simplex SMF 10km
-W5310 1000M LC Simplex SMF 10km
-W3520 1000M LC Simplex SMF 20km
-W5320 1000M LC Simplex SMF 20km
-W3410 1000M LC Simplex SMF 10km
-W4310 1000M LC Simplex SMF 10km
-W3410S 1000M SC Simplex SMF 10km
-W4310S 1000M SC Simplex SMF 10km
Optical Specifications
Model Ext. Wavelength TxPower*1Rx Sen.*2Max.Rx*3
-SX 850nm -9.5~ -4 -18 0
-LX 1310nm -9.5~ -3 -20 -3
-LX20 1310nm -8~ -2 -23 -1
-LX30 1310nm -4~ +1 -24 -3
-LX50 1550nm -4~ +1 -24 -3
-LX70 1550nm 0~ +5 -24 -3
Bi-Direction WDM over single SMF
-W3510 T1310/R1550 -9~ -3 -21 -1
-W5310 T1550/R1310 -9~ -3 -21 -1
-W3520 T1310/R1550 -8~ -2 -23 -1
-W5320 T1550/R1310 -8~ -2 -23 -1
-W3410 T1310/R1490 -9~ -3 -21 -1
-W4310 T1490/R1310 -9~ -3 -21 -1

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-W3410S T1310/R1490 -9~ -3 -21 -1
-W4310S T1490/R1310 -9~ -3 -21 -1
*1Tx Power : Transmitter power (min. ~ max., unit: dBm)
*2Rx Sen. : Receiver sensitivity (unit: dBm)
*3Max.Rx. : Maximal Received power (unit.: dBm)
Note:
The media converter also can support typical 100M SFP transceivers.