COMMET CWFE2SCM2 (01) PDF MANUAL

» Complies with IEEE 802.3, 802.3u, and 802.3x standards.

» Converts between UTP cabling and fiber-optic cable.

» One RJ-45 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.

» Two SC fiber connectors for 100Base-FX optical transmission.

» 4 DIP-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 5-12 VDC.

» FCC Class A, CE Mark certification

The stand-alone converter module package contains the 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.

RJ-45 Port (Auto MDI/MDIX): The Ethernet RJ-45 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. It uses SC connectors.

There are 6 diagnostic LEDs located on the Front panel of the media converter providing real-time information. The following table describes the LED status and their meanings:

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.

Link Lost Forwarding (DIP-Switch 3): When LLF is enabled (ON), 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. When disabled (OFF), link failures are not forwarded between the UTP and fiber ports.

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 (Store-and-forward).

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.

The rear panel contains a power socket, which accepts 5-12 VDC @ 2.7 W.

Connect the included Power Supply to the rear panel DC IN jack.

Plug the AC input of the Power Supply to a commercial power source.

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 feet) long.

» For the single mode fiber optic segment (CWFE2SCS2), 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 (CWFE2SCM2), use 50/125 µm or 62.5/125 µm multimode fiber cable. You can connect two devices up to a 3 kilometer (2 mile) distance.

To connect two devices (e.g., Ethernet devices) over a fiber link using two CWFE2SC(M,S)2 converters:

1. Connect the first Ethernet device to the RJ-45 port of the first CWFE2SC using CAT5e cable.

2. Connect the second Ethernet device to the RJ-45 port of the second CWFE2SC using CAT5e cable.

3. Connect the Fiber TX port of the first CWFE2SC to the Fiber RX port of the second CWFE2SC using the appropriate fiber optic cable (Multimode or Single Mode).

4. Connect the Fiber RX port of the first CWFE2SC to the Fiber TX port of the second CWFE2SC using the appropriate fiber optic cable.

5. Connect the included power supply to the DC IN jack on the rear panel of each converter and plug them into a power source.

» Check the DIP-switch configuration. It must be set in the same operational mode as the corresponding link partner (e.g., Full/Half Duplex settings).

» Select the proper UTP/fiber optic cable to construct your network. The single-mode media converter must use single-mode fiber optic cable, and the multimode version must use multimode fiber optic cable. Please check that you are using the right cable type and that the distance is within the specified limits.

» Check the LED indicators for Power, Link, Activity, Speed, and Duplex status on both UTP and Fiber ports to diagnose connection issues.