E3 Fiber Optic Modem

• Transparent to E3
  
• Relay minor and major alarms
  
• Managed by an ASCII terminal or an SNMP management station
  
• Built-in diagnostics comply with V.54 standard
  
• Dry contact alarm port for external alert devices
  
• System diagnostics and alarms include LED indicators, dry contact and loop back tests
  
• Setup, control, and diagnostics can be performed by a variety of platforms including Telnet, ASCII, SNMP management, and the RADview management system

• Works opposite Optimux, ACE and DXC products to extend the range of equipment with electrical E3 up to 110 km (68 miles)
  
• Wave Division Multiplexing (WDM) module for operation over a single-strand fiber optic link, thereby reducing the costs of fiber optic lines
  
• Wide range of modular optical interfaces

Extended transmission

The high-speed FOM-E3 fiber optic modem extends transmission range of electrical E3 signals at a rate of 34.368 Mbps over fiber optic cables up to 110 km (68 miles).

Supports wide range of fiber optic interfaces

The FOM-E3 supports a wide range of fiber optic interfaces including long- haul laser for extended ranges and WDM laser for transmission over a single fiber.

Transparent to E3 framing, the FOM-E3 modem operates opposite RAD’s DXC cross connect and Optimux-34 multiplexer. Similarly, it can operate opposite an ACE ATM access device, enabling E3 ATM traffic to be transported over long distances on fiber and connect to an ATM or SDH network device with an electrical E3 port.

FOM-E3 operation complies with ITU G.703, G.921 and G.956 standards. In addition, the modem supports activation of local and remote loopbacks in compliance with the ITU V.54 standard.

The FOM-E3 modem includes a dry contact alarm port for relay of alarm conditions to external alert equipment.