may cause damage to the polished optical connector end faces
Follow standard Electrostatic Discharge (ESD) procedures when handling a the chassis and
the modules of the LFTXRX.
The ground terminal of the device has to be permanently connected to a grounding point for
save operation. Otherwise, the device could be damaged.
The power supplies are EMI filtered. The chassis is connected to earth ground in compliance
with safety requirements. Always use the 3-prong AC plug with earth ground to avoid
possibility of electrical shock hazard to personnel.
Select and apply the appropriate 100-240AC voltage according to the data sheet and
documentation before connecting power.
Install suitable overvoltage protection to ensure that no overvoltage (such as that caused by
a bolt of lightning) or overcurrent can reach the product. Otherwise, the person operating
the product will be exposed to the danger of an electric shock.
Depending on configuration, the chassis is equipped with user-changeable power supplies.
Always disconnect the mains of the power supply that has to be changed. Wait at least 10s
after disconnecting the mains (for internal discharge of the power supply) before removing
the power supplyATTENTION: To avoid the possibility of an electrical shock, never handle
with a power supply that is connected to mains!
Before you connect the LFTXRX to an L-Band distributor or LNC , please make sure that the
unit to which you connect can handle 15V D/C voltage on its RF L-Band input. Some L-Band
IF distribution equipment does not have D/C blocks included and the unit could be damaged.
If you are not sure how the interfacing equipment will behave, switch off the LNC supply
voltage in the Setup menu or in case of local controlling by hardware switch before you
connect the cable.
The LFTXRX can be damaged if the total RF input power is higher than +10dBm specified
maximum value. Do not connect equipment where the total output power is higher than the
specified value of the data sheet or indicated on the LFTXRX unit.
In case of a failure do not open the sat-nms LFTXRX, you will loose warranty, call SatService
GmbH for a RMA number.
Observe normal safety precautions when operating, servicing, and troubleshooting this
equipment.
Take standard safety precautions with hand and/or power tools.
When connecting the units fault relay circuits, observe the maximum ratings: 48V D/C
300mA, 48V A/C 500mA.
2.2 Handling instructions for optical connectors
Do not allow any kind of dust or dirt on the fibre.
Do not touch the fibre! Otherwise you will get optical attenuation and the opposite fibre in the
corresponding connector will be contaminated as well.
When installing or changing optical connections, ensure that the environment of the room
where the unit is installed is as dust-free as possible.
If you install the unit on-site, make sure that the complete work that causes dust (e.g.
plastering or concreting) is already finished and the resulted dust is cleaned up properly.
Remove the fibre protection cap of the E2000 or FC/APC connectors just before you
connect the optical connector.
Store the protection caps in a closable box that is absolutely dirt- and dust-free.
After disconnecting a fibre, put a dirt- and dust-free protection cap into the connector in
order to avoid dust contamination.
Before connecting, we strongly recommend to clean the fibre. We recommend to use clean
(C) 2021, SatService GmbH
www.satnms.com
LF20-UM-2107 Page 7/43
