RAD FOM-E3/ETH Installation and operation manual - page 22
Chapter 2 Installation and Setup
FOM-E3/ETH, FOM-T3/ETH Installation and Operation Manual
2-2
Installation and Setup
To install FOM-E3/ETH or FOM-T3/ETH:
1. Determine the required configuration of FOM-E3/ETH or FOM-T3/ETH
according to your application, and set the internal jumpers and switches
accordingly.
2. Connect the fiber optic lines and the LAN.
3. Connect power to the unit.
Setting the Internal Jumpers
This section provides information on the functions of the FOM-E3/ETH and
FOM-T3/ETH jumpers, and gives step-by-step instructions for performing the
internal settings. The default settings are also listed.
Locations of Jumpers and Switches
FOM-E3/ETH and FOM-T3/ETH include three printed circuit boards (PCBs): the
main board, fiber optic interface board, and Ethernet interface board
(see
Figure 2-1
and
Figure 2-2
).
The main board contains the common signal processing circuits. One jumper, JP1,
is provided for user settings.
The fiber optic interface board provide connection to the fiber optic links. This
board does not contain any jumpers for user selection.
The Ethernet interface board provides LAN connection. The Ethernet board
contains an 8-section DIP switch for the interface configuration.
Opening the Case
To reach the internal jumpers and switch of FOM-E3/ETH and FOM-T3/ETH, it is
necessary to open its case.
Access to the inside of FOM-E3/ETH and FOM-T3/ETH is permitted only to
authorized and qualified service personnel.
To avoid accidental electric shock, always disconnect the interface cables and
the power cord before removing the units from their casing.
Line voltages are present inside FOM-E3/ETH and FOM-T3/ETH when they are
connected to power and/or to the lines. Moreover, under external fault
conditions dangerous voltages may appear on the lines connected to the units.
Any adjustment, maintenance, and repair of the opened equipment under
voltage should be avoided as much as possible and, when absolutely
necessary, should be carried out only by a skilled technician who is aware of
the hazard involved. Capacitors inside the instruments may still be charged
even after the instruments have been disconnected from their power source.
FOM-E3/ETH and FOM-T3/ETH contain components sensitive to electrostatic
discharge (ESD). To prevent ESD damage, avoid touching the internal components.
Before moving jumpers, touch the FOM-E3/ETH or FOM-T3/ETH frame.
Warning
Caution