High Speed Fiber Optic Modem

• User selectable data rates from 56 kbps to 2.048 Mbps
• Large variety of data interfaces supported
• Diagnostics include V.54 loops and built-in V.52 BERT
• Three clock modes are available: internal clock, receive loopback clock and external DTE clock
• Monitoring and control from the front panel menus
• Available as a standalone unit or inserted as a module in an ASM-MN-214 chassis

• Extended transmission range up to 100 km (62 miles)
• Operates over multimode or single mode fiber
• Laser diode option for extended range

The FOM-40 is a high speed, synchronous fiber optic modem operating full or half duplex over fiber optic cable. It has selectable data rates from 56 kbps up to 2.048 Mbps, and a range up to 100 km (62 miles) using single mode 1550 nm laser diode. The FOM-40 can operate over single mode or multimode fiber using 850 nm or 1310 nm LEDs, 1310 nm laser diode or 1550 nm laser diode.

Connects routers to data services

The large variety of interfaces supported by the FOM-40 facilitate the connection of distant routers to data services. The Ethernet/Fast Ethernet bridge modules enable the connection of remote LANs and VLANs. The FOM-40 extends these services and connections over fiber optic cables and performs the hand-off to the SDH/SONET or IP network.

The FOM-40 features V.54 diagnostics to perform local analog/digital and remote digital loopbacks. Loopback commands are controlled either manually by a front panel switch or via the DTE interface signals. The front panel switch generates an internal pseudo-random test pattern (511) according to the V.52 standard, for testing end-to-end connectivity.

The FOM-40 is available as a standalone unit or as a card for the ASM-MN-214 19" rack.