sat-nms LBRX/LBRX19 User Manual

2.3.2 LBRX-81 DIN Rail module with 8:1 input switch

The sat-nms LBRX-81 provides an integrated 8:1 input switch, which allows the beacon receiver via its input frequency and polarization parameters the selection of the corresponding LNB. The input connectors are named J8.1 ... J9.4.

The connectors of the receiver are placed on both sides. One side contains the DC and Data connectors as well as the LNB input connectors, the other side the RF connectors and the DC input for LNB power supply is located. 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. To meet mentioned EMC standards, use double shielded twisted pair CAT7 S/FTP Network cable, e.g. DRAKA UC900 SS27 Cat.7 PUR. Take care, that cable shielding is connected properly.
J2 is the Ethernet 10/100Base-T / RJ45 connector. Use a standard network cable to connect the receiver to an Ethernet hub. If you want to connect your computer and the receiver directly without using a hub, you need a crossover cable for this with swapped RX/TX lines. To meet mentioned EMC standards, use double shielded twisted pair CAT7 S/FTP Network cable, e.g. DRAKA UC900 SS27 Cat.7 PUR. Take care, that cable shielding is connected properly.
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. To meet mentioned EMC standards, use double shielded twisted pair CAT7 S/FTP Network cable, e.g. DRAKA UC900 SS27 Cat.7 PUR. Take care, that cable shielding is connected properly.
The RF input J5 may be configured to power a LNB if the 8:1 switch is not used. 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 the web based user interface before you connect the receiver input! To meet mentioned EMC standards, use double shielded coaxial cable, e.g. RG223. Take care, that cable shielding is connected properly.
The LNB inputs J8.1...J9.4 are able to provide LNB power supply. Therefore it is necessary to apply 24VDC at the 'LNC DC 24V Input' connector. 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 switching the correlating DIP-switch to 'Off' before you connect the receiver input! To meet mentioned EMC standards, use double shielded coaxial cable, e.g. RG223. Take care, that cable shielding is connected properly.

DC and data connectors

The DC and data connectors as well as the LNB input connectors of the receiver all are located at one of the side panels of the enclosure. The figures below illustrates the location of connectors and the pin out.

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 (48V D/C, 100mA max.)
	7	Fault relay
	8	Level/Frequency track fault relay (48V D/C, 100mA max.)
	9	Level/Frequency track fault relay

J3	pin no.	RS232 serial interface, DCE, (SUB-D 9P socket)
	1	not connected
	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	not connected

Connector	Description
J2	Ethernet 10Base-T, (RJ45)
J4	Beacon level 0..10V (SMA female)

LNB input connectors

Connector	Description	Connector	Description
J8.1	LNB Input LO1 (lowest LO) Vertical (SMA female)**	J9.1	**LNB Input LO3 Vertical (SMA female)
J8.2	LNB Input LO1 (lowest LO) Horizontal (SMA female)**	J9.2	**LNB Input LO3 Horizontal (SMA female)
J8.3	LNB Input LO2 Vertical (SMA female)**	J9.3	**LNB Input LO4 (highest LO) Vertical (SMA female)
J8.4	LNB Input LO2 Horizontal (SMA female)**	J9.4	**LNB Input LO4 (highest LO) Horizontal (SMA female)

75Ohm F connectors for the LNB inputs are available on special request.

LNB DC power supply can be switched for each input via corresponding DIP-switch. Take care if you connect a signal source that is not able to handle DC-power!

RF connectors

The other side panel of the enclosure contains the RF connectors and the DC input for LNB power supply. This RF input (J5) may be configured to inject a LNB supply voltage of 14 or 18 Volts as well a 0/22kHz. The switch output (J7) provides the selected input signal. The LNC DC 24V Input is needed if you want to power connected LNBs via internal 8:1 input switch. It is possible to connect a second 24VDC power supply to enable a redundant LNB DC power supply. If you only want to connect one power supply, it suffices to connect Pin 1 and 2.

Connector	Description
J5	RF Input (SMA female)
J6	RF Output (SMA female)
J7	8:1 input switch RF Output (SMA female)

LNC DC	pin no.	24VDC input for LNB power supply (phoenix combicon
	1	Power supply +24V
	2	GND
	3	backup Power supply +24V
	4	GND

Block diagram LBRX-81