Ethernet Fiber Optic Modem

• User-selectable IP multicast and broadcast prevention to WAN Wide range of modular optical interfaces
  
• Filtering and forwarding at 150,000 frames per second Units can be configured to prevent multi-cast and broadcast to the WAN
  
• Large number of optical interfaces supported Relay of minor and major alarm conditions
  
• Available as a standalone unit or inserted as a module in an -LRS-24 chassis

• Extends the range of 10/100BaseT signals over E3 services via fiber optic cable to ranges of 110 kilometers (68 miles)
  
• Built-in Ethernet bridge and VLAN support
  
• Filtering and forwarding at Fast Ethernet rates
  
• Plug-and-play operation
  
• Wave Division Multiplexing (WDM) for transmission of multiple signals over a single fiber optic link; reduced costs for fiber optic lines

Long-range LAN connectivity

The FOM-E3/ETH Ethernet fiber optic modem converts a 10/100BaseT electrical signal into an optical signal with a range of up to 110 km (68 miles). The modem transparently connects between LANs, achieving maximum bandwidth utilization of the E3 link, without the heavy overhead associated with packet- or cell-based technologies. It provides built-in bridging and VLAN support at Ethernet/Fast Ethernet rates, enabling virtual connection of remote LANs as in campus applications.

The Ethernet interface module performs frame filtering and forwarding at the Fast Ethernet maximum theoretical rate of 150,000 frames per second. The bridge causes no LAN delays.

Available optical interfaces:

• 850 nm for multimode fiber
  
• 1310 nm for single or multimode fiber
  
• 1310 nm and 1550 nm laser diode, long haul laser for extended range over single mode fiber
  
• WDM laser for transmission over a single fiber

User-configurable

The modem can be configured by the user to enable or prevent broadcast and IP multicasting to the WAN as required. The FOM-E3/ETH Ethernet fiber optic modem can be used to connect LANs and high-speed routers over E3 links to the network.

The product is available as a standalone units, can be mounted in a standard 19-inch rack using special hardware, or two units can be mounted side-by-side.