Specifications

Installation and Operation Manual Chapter 2 Installation and Setup
FOM-E3/ETH, FOM-T3/ETH Ver. 1.0 Installation and Setup 2-5
Section Name Description Possible Settings Factory Setting
7 MUL Controls LAN to WAN
multicasting
ON – Multicast messages from LAN to
WAN are blocked
OFF – Multicast messages from LAN to
WAN are not blocked
OFF
8 SCR Controls the scrambling of
Ethernet frames
ON – Ethernet frames are scrambled
OFF – Ethernet frames are left
unchanged
OFF
Closing the Case
Once you finish the internal settings, you have to close the FOM-E3/ETH and
FOM-T3/ETH case.
 To close the FOM-E3/ETH or FOM-T3/ETH case:
1. Slide the PCB assembly back into the case.
2. Screw in the two rear panel screws to fasten the main board in the case.
Connecting the Interfaces
Figure 2-3 shows a typical rear panel of a standard FOM-E3/ETH unit and
identifies connector locations for the AC version.
The FOM-E3/ETH and FOM-T3/ETH rear panels contain also LAN status indicators,
which duplicate the front panel LAN LEDs. The LINK and ACT indicators are
located on the Ethernet interface connector.
10/100BASE-T
100M
ACT LINK
ALARMS
OPTICAL
RX TX
Figure 2-3. FOM-E3/ETH Rear Panel
Connecting the Fiber Optic Interface
This module includes Class 1 lasers. For your safety:
• Do not look directly into the optical connectors while the module is operating.
Remember that the module starts operating as soon as it is inserted in an
operating DXC system.
• Do not attempt to adjust the laser drive current.
The use of optical instruments with this product will increase eye hazard. Laser
power up to 1 mW at 1300 nm and 1550 nm could be collected by an optical
instrument.
Use of controls or adjustment or performing procedures other than those
specified herein may result in hazardous radiation exposure.
Warning