• High speed fiber optic modems, extending the range of 10/100BaseT signals
  over E3/T3 services via fiber optic cables up to 110 km (68.35 miles)
• Built-in bridge and VLAN support for operation at Ethernet and Fast Ethernet rates
• User-selectable multicast and broadcast prevention to WAN
• Plug-and-play LAN connection
• Single mode, multimode and WDM over single fiber options
• Relay of minor and major alarm conditions

• FOM-E3/ETH and FOM-T3/ETH fiber optic modems convert a 10/100BaseT electrical signal into an E3/T3 optical signal. After the  conversion, the signal is  transmitted over fiber optic cable,  extending the 10/100BaseT traffic range up to 110 km (68 miles).
• FOM-E3/ETH and FOM-T3/ETH transparently connect 10/100BaseT links, utilizing the full E3/T3 bandwidth without heavy overhead associated with packet or cell-based technologies.
• The Ethernet interface module performs frame filtering and forwarding at the Fast Ethernet maximum theoretical rate of
150,000 packets per second. The bridge causes no LAN delays.  
• FOM-E3/ETH and FOM-T3/ETH support various optical interfaces:
! 850 nm for multimode fiber
! 1310 nm for single or multimode fiber
! 1310 nm and 1550 nm laser diode, long haul laser for extended range over single mode fiber
! WDM laser for transmission over a single fiber.

SPECIFICATIONS

ETHERNET INTERFACE
• LAN Table
1,000 MAC addresses with 5-minute automatic aging
• Filtering and Forwarding
Up to 150,000 packets per second
• Buffer
170 frames with 1 frame delay
• Standard
10/100BaseT IEEE 802.3/ Ethernet V.2, IEEE 802.1/Q
• Line Code
! Manchester (10BaseT)
! MLT3 (100BaseT)
• WAN Protocol
Point-to-point
• Transmission Line
4-wire, category 5 UTP, 19 AWG to 26 AWG
• Connector
RJ-45
E3/T3 FIBER OPTIC INTERFACE
• Line Code
CDP
• Specifications and Ranges

• Connectors
ST, SC or FC (see Ordering)

ORDERING

FOM-E3/ETH/*/#/&
10/100BT over E3 fiber optic modem
FOM-T3/ETH/*/#/&
10/100BT over T3 fiber optic modem

* Specify power supply:
AC for 100 to 240 VAC
DC for 20 to 72 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 type connector
& 85 for 850 nm, multimode
13MM for 1310 nm, multimode
13 for 1310 nm, single mode
13L for 1310 nm, single mode,
laser diode
15L for 1550 nm, single mode,
laser diode
13LH for 1310 nm, single mode,
long haul laser diode
15LH for 1550 nm, single mode,
long haul laser diode
SF1 for transmit 1310 nm,
receive 1550 nm, WDM laser
SF2 for transmit 1550 nm,
receive 1310 nm, WDM laser
 
APPLICATION