sat-nms LBRX-1MT User Manual

2.2 Connecting the Receiver

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)
	1	RS422 Streaming output (+)
	2	TxD (output)
	3	RxD (input)
	4	internally bridged to pin 6
	5	GND
	6	internally bridged to pin 4
	7	internally bridged to pin 8
	8	internally bridged to pin 7
	9	RS422 Streaming output (-)

J1	pin no.	Power supply and alarm contacts (SUB-D 9P pin)
	1	Power supply +24V
	2	Power supply +24V
	3	not connected
	4	GND
	5	GND
	6	Fault relay (120V D/C, 100mA max.)
	7	Fault relay
	8	Level fault relay (120V D/C, 100mA max.)
	9	Level fault relay

J4	Beacon level 0..10V (SMA female)
	not used by the LBRX-1MT

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.

J5	RF Input (SMA female)

J6	RF Output (SMA female)