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INSTALLATION AND OPERATION MANUAL
CWFE2SC(M)(S)2
COMMERCIAL GRADE 10/100 MBPS
ETHERNET 2 PORT MEDIA CONVERTER
1 CHANNEL: ELECTRICAL
OPTICAL
V1.25 – October 2010
The ComWorx™ VL CWFE2SC(M)(S)2 Ethernet 2 port media converters are designed to transmit
and receive 10/100 Mbps data over multimode or single mode optical fiber. The electrical
interface will Auto-Negotiate to a 10 Mbps, or 100 Mbps Ethernet rate without any adjustments.
The optical interface operates at a 100 Mbps Ethernet rate. These media converters are
commercial grade for light industrial use.
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Content
Introduction ......................................................1
Features ......................................................................................................... 2
Package Contents.......................................................................................... 2
Hardware Description......................................3
Front Panel..................................................................................................... 3
Ports............................................................................................................... 3
LED Indicators................................................................................................ 4
DIP-switch...................................................................................................... 5
Rear Panel...................................................................................................... 6
Cabling ........................................................................................................... 6
Problem Solving ...............................................7
Optical Fiber Specification ..............................8
Technical Specifications .................................9
1
Introduction
The ComNet CWFE2SC(M)(S)2 is a cost-effective solution for converting
10/100Base-TX electrical to and 100Base-FX fiber optic cable, It allows you
to extend the distance of your 100Base-FX network up to 2 kilometers for
multi-mode fiber or up to 30 kilometers for single-mode fiber. The ComNet
CWFE2SC(M)(S)2 gives you the option of choosing between the most
popular fiber cabling connectors: SC/multi-mode fiber connector and SC
single-mode fiber connectors. The CWFE2SC(M)(S)2 module provides you
with one fiber connector for your fiber optic cable and one Ethernet RJ45
port (Auto MDI/MDIX) for your 100BaseTX copper cable connection. There
are 4 DIP- switches to set the operation mode for UTP, Fiber ports and link
loss forwarding function.
2
Features
ComNet CWFE2SC(M)(S)2
Complies with IEEE 802.3, 802.3u, and 802.3x standards.
Converts between UTP cabling and fiber-optic cable.
One RJ45 connector, Auto-MDI/MDIX for UTP port.
Supports 10/100 Mbps Auto-negotiation for UTP port.
Fiber optic cabling connectivity up to 30Km.
Store-and-forward switching architecture.
One SC fiber connector for 100Base-FX optical transmission.
4DIP-switches to set the operation mode and Link- Lost-Forwarding
function.
6 LEDs for per port: 100, Link, Activity, Full, Collision, and per unit
Power.
External DC power adapter 12V/1A.
FCC Class A, CE, UL, and CUL Mark certification
Package Contents
Stand-alone converter module package contains following items.
Media Converter
AC-DC Power Adapter
User Guide
Compare the contents of your converter module with the checklist above. If
any item is damaged or missing, please contact your local dealer for service.
3
Hardware Description
Unit dimension (L x W x H) is: 119mm x 85mm x 26mm
Front Panel
The Front Panel of the ComNet CWFE2SC(M)(S)2 consists of one RJ45
Port (Auto MDI/MDIX), 6 LED Indicators (UTP 100, LK/ACT, FDX/COL, Fiber
LK/ACT, FDX/COL and PWR) and one fiber 100Base-FX Port.
Ports
RJ45 Port (Auto MDI/MDIX): the Ethernet RJ45 will auto-sense for
10Base-T or 100Base-TX connections. Auto MDI/MDIX means that you
can connect to another switch or workstation without changing
non-crossover or crossover cabling.
Fiber Port: This port is for 100 Base-FX connections.
1
3
4
Fast Fiber Converter Module-- SC
4
LED Indicators
There are 6 diagnostic LEDs located on the Front panel of the media
converter. They provide real-time information of system and optional status.
The indicator includes Power, UTP 100, LK/ACT, FDX/COL, Fiber LK/ACT,
FDX/COL. The following table provides description of the LED status and
their meanings.
LED
Status
Meaning
PWR
Green
Power on
Green
100Mbps UTP Speed
100
OFF
10Mbps UTP Speed
Green
The unit is linking with its link partner.
Blinks
The unit is transmitting or receiving packets from UTP
devices.
LK/ACT
(UTP)
Off
No device attached
Green
The unit is linking with the corresponding unit.
Blinks
The unit is transmitting or receiving packets from FX
devices.
LK/ACT
(Fiber)
Off
No device attached
Orange
The UTP port is operating in full-duplex mode.
Blinks
Collision of Packets is occurring in the port.
FDX/COL
(UTP)
Off
Half-duplex mode or no device attached
Orange
The fiber port is operating in full-duplex mode.
Blinks
Collision of Packets is occurring in the port.
FDX/COL
(Fiber)
Off
Half-duplex mode or no device attached
5
DIP-switch
The DIP-switch is used to configure operation mode for LLF (Link Lost
Forwarding) and operation mode for UTP/Fiber port. The default value of
DIP switch is OFF.
S/W No
Status
Description
ON
UTP 100Mbps Full Duplex mode
1
OFF
UTP Auto-Negotiate
ON
Fiber in Half Duplex
2
OFF
Fiber in Full Duplex
ON
LLF Enable
3
OFF
LLF Disable
ON
Pure converter mode
4
OFF
Switch Converter mode
Link Lost Forwarding (DIP-Switch 3): When LLF is enabled, it allows UTP
link failures to be reported to the fiber side and also allows a fiber link failure
to be reported to the UTP side. Therefore, a link loss forward feature is
provided in both UTP and fiber side.
Pure Converter mode (DIP-Switch 4): When the pure converter mode is
enabled (on), it operates with minimal latency. The transmission flow does
not wait until the entire frame is ready, but instead it forwards the received
data immediately after the data has been received. The UTP port should be
forced at 100M in this application. When DIP-Switch is in Switch Converter
mode (off), the converter function is same as Switch Hub.
[Note] Do not change the DIP-switch setting when UTP or fiber port is
transmitting or receiving data. It may cause some data errors. If you change
the DIP-switch setting, please power off the converter and power it on again
to make the setting effective.
6
Rear Panel
The rear panel contains a power socket, which accepts 8–24 VDC @ 220mA.
Cabling
For the Twisted-pair segment unshielded twisted pair (UTP) or shielded
twisted pair (STP) cabling can be used. The cable must comply with the
IEEE 802.3u 100Base TX standard for Category 5. The cable between
the converter and the link partner (switch, hub, workstation, etc.) must
be less than 100 meters (328 ft.) long.
For the single mode fiber optic segment, use 9/125 µm single mode
fiber cable. You can connect two devices over a distance of 30
Kilometers.
For the multimode fiber optic segment use 50 or 62.5/125 um
multimode fiber cable. You can connect two devices up to a 2-kilometer
(6,562 ft.) distance.
DC IN
7
Problem Solving
Check the DIP-switch configuration. It must be set in the same
operational mode as the corresponding link.
Select the proper UTP/fiber optic cable to construct your network. The
single-mode media converter must use single-mode fiber optic cable.
Please check that you are using the right cable.
8
Optical Fiber Specifications
The following table shows the optical Fiber Specification
Module Name
Wavelength
(nm)
Avg. Launch
Power (dB)
Avg. Sensitivity
(dB)
ComNet CWFE2SCM2
1310 (nm)
-18 (dB)
-30 (dB)
ComNet CWFE2SCS2
1310 (nm)
-6 (dB)
-34 (dB)
Module Name
Avg. Power
Loss Budget
(dBm)
Max. FDX Fiber
Distance (Km)
Fiber Size (um)
ComNet CWFE2SCM2
12 (dBm)
2 (Km)
62.5/125
50/125
ComNet CWFE2SCS2
28 (dBm)
30(Km)
9/125
Optical Specifications of Transceivers
Transmitter (Output Center Wavelength): 1261~1360 nm
Receiver (Wavelength of Operation): 1100~1600 nm
Optical Transmit Power: Min. –15 dBm, Max. –7 dBm
1310 nm
Multimode
Single Mode
Sensitivity: Min. ---, Max. –34 dBm
9
Technical Specifications
ComNet CWFE2SC(M)(S)2 technical specifications are as follows:
Standard
IEEE802.3 10BASE-T
IEEE802.3u 100BASE-TX/100BASE-FX
IEEE802.3x Flow Control and Back pressure
Connector
Fiber: Duplex SC
RJ45 Socket: CAT-3/5 (10/100Mbps) Twisted Pair cable
Auto MDI/MDI-X and Auto-Negotiation Function Support
Switch architecture
Store and Forward
Fiber parameters
Fiber Core: Multi-Mode (62.5/125um, 50/125um)
Single-Mode (9/125µm)
Wavelength: 1310nm Multimode & Single-mode
Fiber Distance: Multi-Mode Fiber 2KM
Single-Mode Fiber 30 KM
Transparent packet
64 to 1518 Bytes for Non-VLAN Ethernet packet
Link Lost Forward
UTP Fiber: If UTP port link is down, the converter will force
the fiber to link down.
Fiber UTP: If Fiber port link is down, the media converter
will force UTP port to link down.
DIP Switch
DIP Switch 1: UTP Auto-Negotiate / 100Mbps Full Duplex
mode
DIP Switch 2: Fiber Full/Half Duplex
DIP Switch 3: LLF (Link Lose Forwarding) Disable/Enable
DIP Switch 4: Switch Converter / Pure converter mode
LED
Module: Power, TX (100Mbps, LK/Act, FDX/COL) Fiber
(LK/Act, FDX/COL)
Power
Stand-alone (external adapter): DC12V / 1A
Dimension
Module: 119mm x 85mm x 26mm
EMI & safety
FCC Class A, CE, UL, CUL
10
ComNet Customer Service
Customer Care is ComNet Technology’s global service center, where our professional staff are
ready to answer your questions at any time. Email address of ComNet Global Service Center:
customercare@ComNet.net
Communication Networks
World Headquarters ComNet Europe Ltd
3 Corporate Drive 8 Turnberry Park Road
Danbury, CT 06810 USA Gildersome, Morley
T 203 796-5300 Leeds, LS27 7LE, UK
F 203 796-5303 T +44 (0)113 307 6400
888 678-9427 Tech Support F +44 (0)113 253 7462
info@ComNet.net
info-europe@ComNet.net
© 2010 Communication Networks. All rights reserved.
The COMNET logo is a registered trademark of Communication Networks Corporation.
Additional Company and product names may be trademarks or registered trademarks of the
individual companies and are respectfully acknowledged and do not imply endorsement.
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