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RAD Data Communications - Authorized Distributor

FOM-20 fiber optic modem from RAD

The FOM-20 fiber optic modem provides a secure, long-range data link between computers, routers, multiplexers, and other data  communication devices. The RAD FOM-20 operates at 16 selectable synchronous or asynchronous data rates from 19.2 kbps to 256  kbps. The built-in Ethernet bridge option enables cost-effective LAN-to-LAN connectivity without the need for an external bridge. 
FOM-20 converts electrical signals from DTE equipment into optical signals using an infrared light emitting diode (LED) or  laser diode.

FOM-20 FOM-20/115/FC13L/V24 3120170000 FOM-20/115/FC15L/V35 3121140000 FOM-20/115/FC85/V24 3120130000 FOM-20/115/SC13L/V35 3120750000 FOM-20/115/SC13L/V36 3121430000 FOM-20/115/SC15L/UTP 3121420000 FOM-20/115/SC15L/V24 3121810000 FOM-20/115/SC85/V35 3121310000 FOM-20/115/SM85/V35 3120010000 FOM-20/115/ST13L/UTP 3121150000 FOM-20/115/ST13L/V24 3120110000 FOM-20/115/ST13L/V35 3120120000 FOM-20/115/ST13L/V36 3121620000 FOM-20/115/ST15L/V24 3121040000 FOM-20/115/ST85/530 3120940000 FOM-20/115/ST85/703/RJ 3121670000 FOM-20/115/ST85/V24 3120070000 FOM-20/115/ST85/V35 3120080000 FOM-20/115/ST85/V36 3120710000 FOM-20/115/ST85/X21 3120730000 FOM-20/230/FC13L/V24 3120380000 FOM-20/230/SC13L/V24 3121570000 FOM-20/230/ST85/530 3120640000 FOM-20/230/ST85/703/TB 3120660000 FOM-20/230/ST85/V35 3120240000 FOM-20/48/FC13L/V24 3120530000 FOM-20/48/ST13L/V24 3120470000 FOM-20/48/ST13L/V35 3120480000 FOM-20/48/ST85/G703/RJ 3121230000 FOM-20/48/ST85/G703/TB 3120630000 FOM-20/48/ST85/V35 3120440000 FOM-20/48/ST85/V36 3121260000 FOM-20/R/ST15L/V24 3121490000 FOM-20/R/ST85/G703 3121130000 FOM-20/R/ST85/V36 3121320000

The following DTE interfaces are available on the FOM-20:
V.24/RS-232
V.35
X.21
RS-530
V.36 (RS-449)
Built-in Ethernet bridge
G.703 codirectional (64 kbps).

FOM-20 operates with several grades and sizes of fiber optic cable, and can be ordered with the following interfaces:

850 nm LED/VCSEL for multimode fibers
1300 nm laser for single-mode fibers
1550 nm laser for single-mode fibers.

FOM-20 provides immunity against electrical interference, such as EMI, RFI, spikes, and differential ground loops. Sparking  and lightning protection is provided and a secure link is maintained in hazardous or hostile environments. Three clocking  modes provide maximum flexibility: internal clock, receive loopback clock, and external DTE clock. A phase locked loop (PLL)  circuit recovers jitter-free data and clocking from the incoming optical signal. 

V.54 diagnostics are used for local analog and digital loopbacks, and remote digital loopback. The loopback commands are  controlled either by a manual switch, or through DTE interface signals. For testing end-to-end connectivity, BER tests generate an internal pseudo-random test pattern (511 bits) according to the ITU V.52 standard. The ERR LED flashes whenever a  bit error is detected.

RAD FOM-20 range table
RAD FOM-20 typical application
FOM-20 is available as a standalone unit (1U, 1.75 inches high) or as a card for installation in RAD’s ASM-MN-214 rack. An optional mounting kit (RM-9) is available for mounting one or two standalone units side-by-side in a 19-inch rack.

FOM-20 FOM-20/115/FC13L/V24 3120170000 FOM-20/115/FC15L/V35 3121140000 FOM-20/115/FC85/V24 3120130000 FOM-20/115/SC13L/V35 3120750000 FOM-20/115/SC13L/V36 3121430000 FOM-20/115/SC15L/UTP 3121420000 FOM-20/115/SC15L/V24 3121810000 FOM-20/115/SC85/V35 3121310000 FOM-20/115/SM85/V35 3120010000 FOM-20/115/ST13L/UTP 3121150000 FOM-20/115/ST13L/V24 3120110000 FOM-20/115/ST13L/V35 3120120000 FOM-20/115/ST13L/V36 3121620000 FOM-20/115/ST15L/V24 3121040000 FOM-20/115/ST85/530 3120940000 FOM-20/115/ST85/703/RJ 3121670000 FOM-20/115/ST85/V24 3120070000 FOM-20/115/ST85/V35 3120080000 FOM-20/115/ST85/V36 3120710000 FOM-20/115/ST85/X21 3120730000 FOM-20/230/FC13L/V24 3120380000 FOM-20/230/SC13L/V24 3121570000 FOM-20/230/ST85/530 3120640000 FOM-20/230/ST85/703/TB 3120660000 FOM-20/230/ST85/V35 3120240000 FOM-20/48/FC13L/V24 3120530000 FOM-20/48/ST13L/V24 3120470000 FOM-20/48/ST13L/V35 3120480000 FOM-20/48/ST85/G703/RJ 3121230000 FOM-20/48/ST85/G703/TB 3120630000 FOM-20/48/ST85/V35 3120440000 FOM-20/48/ST85/V36 3121260000 FOM-20/R/ST15L/V24 3121490000 FOM-20/R/ST85/G703 3121130000 FOM-20/R/ST85/V36 3121320000

RAD FOM-20 fiber optic modem data sheet (pdf)

Immediate price quote - Call 727-398-5252 or e-mail cs@bestdatasource.com

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Last modified: January 30, 2021
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