The connectors of the receiver are placed on both sides. One side contains the D/C and Data connectors,
the other side the RF connectors. When you connect the receiver, please consider the following:
The fault relays at J1 are Photo MOS solid state circuits. In fault state or while the unit is powered off
they are in hi-Z state (several MOhms). A resistance below 25 Ohms indicates that the function is OK.
J3 is a standard 9-pin RS232 (DCE) connector. You may use a direct 9-pin cable to connect a PC to
the beacon receiver. The RTS/CTS and the DTR/DSR lines are bridged in the receiver to simulate
hardware handshaking. They need however not to be connected, if you want to use a 3 wire cable. J3
also contains the RS422 streaming output.
The RF input J5 may be configured to power a LNB. If you intend to connect the receiver to a signal
source which may not be able to withstand the LNB supply voltage, be sure to switch off the LNB
supply at the receiver by means of remote control interface before you connect the receiver input!
D/C and data connectors
The D/C and data connectors of the receiver all are located at one of the side panels of the enclosure. The
figures below illustrate location of connectors and the pin out.
J3 pin
no.
RS232 serial interface, DCE, (SUB-D
9P socket)
J1 pin
no.
Power supply and alarm contacts
(SUB-D 9P pin)
1
RS422 Streaming output (+)
1
Power 24V
2
TxD (output)
2
Power 24V
3
RxD (input)
3
not connected
4
internally bridged to pin 6
4
GND
5
GND
5
GND
6
internally bridged to pin 4
6
Fault relay (120V D/C, 100mA max.)
7
internally bridged to pin 8
7
Fault relay
8
internally bridged to pin 7
8
Level fault relay (120V D/C, 100mA
max.)
9
RS422 Streaming output (-)
9
Level fault relay
J4
Beacon level 0..10V (SMA female)
J2
Ethernet 10Base-T, (RJ45)
not used by the LBRX-1MT
RF connectors
The other side panel of the enclosure contains the RF connectors. These are the RF input which may be
configured to inject a LNB supply voltage of 14 or 18 Volts and the RF output which loops through the input
signal.
(C) 2020, SatService GmbH
www.satnms.com
LBRX-1MT-UM-2002 Page 6/21
