FOM-E3, FOM-T3

E3, T3 Fibre Optic Modem

• Transparent to E3 toT3
• 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

Product Summary

RAD's FOM-E3 fibre optic modem and FOM-T3 fibre optic modem are fibre optic modems designed for long distance transport of E3 or T3 signals. Working opposite RAD's Optimux, ACE and DXC family of products, these modems enable low cost extension and conversion of E3/T3 fibre interfaces to standard electrical interfaces. The FOM-E3 fibre optic modem and FOM-T3 fibre optic modem support a wide range of fibre optic interfaces, including long haul and Wave Division Multiplexing (WDM), and can operate over different wavelengths.

Benefits

• Works opposite Optimux, ACE and DXC products to extend the range of equipment with electrical E3 orT3 up to 110 km (68 miles)• Wave Division Multiplexing (WDM) module for operation over a single-strand fibre optic link, thereby reducing the costs of fibre optic lines • Wide range of modular optical interfaces

Further Product Information

Extended transmission

The high speed FOM-E3 and FOM-T3 fibre optic modems extend transmission range of electrical E3 or T3 signals over fibre optic cables up to 110 km (68 miles).Two models are available:- FOM-E3 for E3 rates (34.368 Mbps)- FOM-T3 for T3 rates (44.736 Mbps)

Supports wide range of fibre optic interfaces

The FOM-E3 and FOM-T3 support a wide range of fibre optic interfaces including long haul laser for extended ranges and WDM laser for transmission over a single fibre. Transparent to E3/T3 framing, the FOM-E3 and FOM-T3 modems operate opposite RAD's DXC cross connect, Optimux-34 multiplexer (FOM-E3) and Optimux-45 multiplexer (FOM-T3). Similarly, they can operate opposite an ACE ATM access device, enabling E3/T3 ATM traffic to be transported over long distances on fibre and connect to an ATM or SDH network device with an electrical E3/T3 port. FOM-E3 and FOM-T3 operation complies with ITU G.703, G.921 and G.956 standards. In addition, the modems support activation of local and remote loopbacks in compliance with the ITU V.54 standard. The FOM-E3 and FOM-T3 modems include a dry contact alarm port for relay of alarm conditions to external alert equipment.