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 1.544 Mbps (T1) and 2.048 Mbps (E1), 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.

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 hand-off to the SDH/SONET or IP cloud.

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

Specifications

The FOM-40 is a high speed, long-range fiber optic modem operating full or half duplex over fiber optic cable.

Using 1550nm laser diode cable the FOM-40 has a maximum range of 68 miles.

It runs at twelve selectable synchronous data rates from 56 kbps up to 2048 kbps.

The FOM-40 can operate over single mode or multimode fiber using 850nm LEDs, 1300 nm laser diode or 1550 nm laser diode.

Available with a wide array of DTE interfaces including V.24/RS-232, V.35, X.21, RS-530, V.36 (RS-449), G.703 co-directional 64k and Ethernet.

For point-to-multipoint applications it is available in a card version with a managed rack.

Three clocking modes for maximum flexibility

V.54 diagnostics for local, digital and remote digital loopbacks

The FOM-40 is available as a standalone  unit or as a card for the

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SPECIFICATIONS
 

E1/T1 ELECTRICAL INTERFACE • Transmission Rate E1: 2.048 Mbps  T1: 1.544 Mbps • Zero Suppression E1: HDB3 T1: B8ZS • Impedance E1: 75. unbalanced or 120. balanced T1: 100. balanced • Connectors Balanced: 15-pin D-type, female Unbalanced: two BNC FIBER OPTIC INTERFACE • Specifications and Ranges See Table 1 • Connectors ST, SC or FC/PC (see Ordering) GENERAL • Diagnostics Complies with ITU V.54; local and remote loopbacks activated via front panel slide switch

• Indicators PWR . ON when the unit is powered up OPTICAL AIS . ON when "all 1s" string is received at fiber optic interface OPTICAL ERR . ON when bit error rate is 10-6 or worse ELECTRICAL LOW . ON when electrical interface input is below G.703 level ELECTRICAL AIS . ON when "all 1s" string is received at electrical interface • Alarm Relay Port Dry contact via 15-pin, D-type, female connector. | Operates as Normally Open and Normally Closed, using different pins. • Power AC: 115 or 230 VAC (±10%), 47 to 63 Hz, 6W DC: 24 VDC (±10%) or -48 VDC (-36 to -72 VDC) • Physical Height: 4.4 cm / 1.7 in Width: 17.9 cm / 7.0 in Depth: 20.3 cm / 8.0 in Weight: 1.1 kg / 3.0 lb • Environment Temperature: 0.50°C/32.122°F Humidity: Up to 90%, non-condensing

ORDERING FOM-E1/T1/*/#/& E1/T1 fiber optic modem FOM-E1/T1/R/#/& E1/T1 fiber optic modem, card version for ASM-MN-214 card cage   * Specify power supply: 115 for 115 VAC 230 for 230 VAC 24 for 24 VDC 48 for -48 VDC # Specify fiber optic interface type (# for connector type, followed by & for optical wavelength): ST for ST type connector SC for SC type connector FC for FC/PC type connector & 85 for 850 nm, multimode, VCSEL 13 for 1310 nm, single mode, LED 13L for 1310 nm, single mode, laser diode 15L for 1550 nm, single mode, laser diode   RM-9 Special hardware for mounting one or two FOM-E1/T1 units in a 19-inch rack

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	Table 1. FOM-E1/T1 Fiber Optic Interface Characteristics
Wavelength	Fiber Type	Transmitter	Power	Receiver	Typical Max.
		Type		Sensitivity	Range
[nm]	[µm]		[dBm]	[dBm]	[km/miles]
850	62.5/125 multimode	VCSEL	-18	-38	5/3
1310	9/125 single mode	LED	-18	-40	38/24
1310	9/125 single mode	Laser	-12	-40	50/31
1550	9/125 single mode	Laser	-12	-40	100/62

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Part Numbers

FOM-40-1/115/530/SP	HIGH SPEED FIBER OPTIC MODEM
FOM-40/115/FC13/E1	HIGH SPEED FIBER OPTIC MODEM, 1300NM, FC CONN
FOM-40/115/FC13/UTP	FIBER OPTIC MODEM, FC CONN, 1300NM
FOM-40/115/FC13/V24	HIGH SPEED FIBER OPTIC MODEM 1300NM SM FC CONNECTORS
FOM-40/115/FC13/V35	HIGH SPEED FIBER OPTIC MODEM 115VAC 1300NM FC CONN V35
FOM-40/115/FC13L/V24	HIGH SPEED FIBER OPTIC MODEM 1300NM SM LASER DIODE FC CONN
FOM-40/115/FC13L/V35	HIGH SPEED FIBER OPTIC MODEM 1300NM SM LASER DIODE FC CONN
FOM-40/115/FC15L/V35	HIGH SPEED FIBER OPTIC MODEM 115VAC 1550NM LASER V35
FOM-40/115/SC13/530	HIGH SPEED FIBER OPTIC MODEM, 1300NM, SC CONN, RS530 INTERFACE
FOM-40/115/SC13/703/TB	HIGH SPEED FIBER OPTIC MODEM. SC CONN
FOM-40/115/SC13/E1	HIGH SPEED FIBER OPTIC MODEM
FOM-40/115/SC13/V35	HIGH SPEED FIBER OPTIC MODEM, 1300NM, SC CONN, V35 INTERFACE
FOM-40/115/SC13L/V35	HIGH SPEED FIBER MODEM, SC CONN, 1300NM LASER DIODE, V35
FOM-40/115/SC15L/T1	HIGH SPEED FIBER OPTIC MODEM
FOM-40/115/SC15L/V35	HIGH SPEED FIBER OPTIC MODEM, 1500NM, LASER DIODE, V35
FOM-40/115/SC85/V35	HIGH SPEED FIBER OPTIC MODEM 850NM MM SC CONN.
FOM-40/115/SC85/V36	HIGH SPEED FIBER OPTIC MODEM, 850NM, MM, SC CONN
FOM-40/115/SM85/530	HIGH SPEED FIBER OPTIC MODEM 115VAC RS530 SMA CONN.
FOM-40/115/SM85/V35	HIGH SPEED FIBER OPTIC MODEM 850NM MM
FOM-40/115/ST13/530	HIGH SPEED FIBER OPTIC MODEM 1300NM SM & MM ST CONN.
FOM-40/115/ST13/E1	HIGH SPEED FIBER OPTIC MODEM, 115V, ST CONN, 1300NM
FOM-40/115/ST13/T1	HIGH SPEED FIBER OPTIC MODEM
FOM-40/115/ST13/UTP	HIGH SPEED FIBER OPTIC MODEM 115V UTP 1300NM ST CONN.
FOM-40/115/ST13/V24	HIGH SPEED FIBER OPTIC MODEM 1300NM SM &MM; W/ST CONN
FOM-40/115/ST13/V35	HIGH SPEED FIBER OPTIC MODEM 1300NM SM & MM ST CONN.
FOM-40/115/ST13/V36	HIGH SPEED FIBER OPTIC MODEM 1300NM ST CONN
FOM-40/115/ST13/X21	HIGH SPEED FIBER OPTIC MODEM
FOM-40/115/ST13L/530	HIGH SPEED FIBER OPTIC MODEM 64KBPS TO 2 MBPS, 1300LA
FOM-40/115/ST13L/V35	HIGH SPEED FIBER OPTIC MODEM LASER
FOM-40/115/ST13L/V36	HIGH SPEED FIBER OPTIC MODEM. 1300NM LASER DIODE, ST CONN
FOM-40/115/ST15L/V35	HIGH SPEED FIBER OPTIC MODEM 115VAC 1550NM LASER ST CONN.
FOM-40/115/ST85/530	HIGH SPEED FIBER OPTIC MODEM ST CONNECTORS 115VAC RS530
FOM-40/115/ST85/703/TB	HIGH SPEED FIBER OPTIC MODEM
FOM-40/115/ST85/E1	HIGH SPEED FIBER OPTIC MODEM ST CONN
FOM-40/115/ST85/T1	HIGH SPEED FIBER OPTIC MODEM
FOM-40/115/ST85/V24	HIGH SPEED FIBER OPTIC MODEM W/ST CONN. ; V.24
FOM-40/115/ST85/V35	HIGH SPEED FIBER OPTIC MODEM 850NM MULTIMODE ST CONN V35
FOM-40/115/ST85/V36	HIGH SPEED FIBER OPTIC MODEM ST. CONN.; 115VAC; V.36
FOM-40/115/ST85/X21	HIGH SPEED FIBER OPTIC MODEM ST CONNECTORS 115VAC X.21
FOM-40/230/FC13/V35	HIGH SPEED FIBER OPTIC MODEM 1300NM FC CONN
FOM-40/230/FC13/X21	HIGH SPEED FIBER OPTIC MODEM 1300NM; FC CONN; SM & MM.
FOM-40/230/FC15L/V35	HIGH SPEED FIBER OPTIC MODEM, 230VAC, 1550NM LASER, V35
FOM-40/230/SC85/V35	HIGH SPEED FIBER OPTIC MODEM 850NM SC CONN
FOM-40/230/SM85/V35	HIGH SPEED FIBER OPTIC MODEM 850NM; MM
FOM-40/230/ST13/530	HIGH SPEED FIBER OPTIC MODEM 64 KBPS TO 2 MBPS
FOM-40/230/ST13/V35	HIGH SPEED FIBER OPTIC MODEM 1300NM SM & MM ST CONN
FOM-40/230/ST85/449	HIGH SPEED FIBER OPTIC MODEM 850NM ST CONN V36

 

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