corresponding slot, the connector is an in- or an output.
If e.g. in slot 1 a LFTX card is placed, the connector I/O 1 is a RF-input. If there is placed a LFRX-
card, I/O 1 is a RF-output.
In the standard configuration all RF-connectors are SMA/ 50Ohm female connectors. If you need
other connectors e.g. BNC or F or an 75Ohm impedance, contact SatService, we are able to
customize the sat-nms LFTXRX.
See chapter,
(50/75Ohm converter)
,
(1:4 splitter)
or
(dual coupler)
for some options.
On the front side of every LFTX or LFRX card you can find a SMA-connector female labelled with
TPout -10dB . Here it is possible to measure the RF Signal connected to the corresponding I/O-
connector with an attenuation of approx. 10dB. This difference may vary due to different
configurations of the sat-nms LFTXRX frame. On the LFTX card the attenuator is additionally
taken into account (see block diagram).
ATTENTION: Optical Radiation!
If connected to a power supply, the sat-nms LFTXRX provides invisible laser radiation. The
source is class 3R Laser diode as defined in DIN EN 60825-1:2001-11. P0=2mW,
Lambda=1310nm. Never look into fibre-optical components like connectors or fibres. Use an
infrared viewer, optical power meter or fluorescent screen for optical output verification.
Depending on the configuration of the LFTX- and the LFRX-cards, E2000 or FC/APC FOL-
connectors are used. They are placed on the right side of the cards. Pay attention to the type of
the connectors, only use single mode APC fibres with 8° angled polish. Otherwise the connectors
or the fibres might be damaged.
Do not allow any dirt or foreign material to get into the optical connector bulkheads. This may
cause damage to the polished optical connector end faces.
(C) 2021, SatService GmbH
www.satnms.com
LF20-UM-2107 Page 14/43
