Comtech EF Data LCS-4 Installation And Operation Manual page 86

LCS-4 L-Band Combiner Switch
Specifications
10 MHz Reference:
To BUC
To LNB
Spurious Emissions TX Toward BUC or
RX Toward Demodulator
TX Output Level with TX Inputs Terminated
TX Output with Modulated Carrier with Unused Ports
Terminated.
RF Input/RF Output Overload
FSK Communications to BUC
FSK Drivers/Receivers
Outdoor RF Switch Control Connector
Remote Port Connector
Relay Fault Status Connector
BUC/LNB Fault Input
DIP Switch Sensing (4)
Prime Power:
AC Inlet A
AC Inlet B
Optional Prime 48 VDC Power:
DC Inlet A
DC Inlet B
LNB Voltage via 2 RX Connectors
BUC Voltage via 2 RX Connectors
Power Consumption:
100W BUC PS
150W BUC PS
Table B-1. General Specification (Continued)
Via TX (BUC)/RX (LNB) center conductor, selectable ON/OFF
0 ± 3 dBm
-3 ± +3 dBm
-55 dBc over 55 MHz to 2.2 GHz measured in a 4 kHz BW with
a CW source.
-60 dBm or less over 800 MHz to 2.2 GHz measured in a 4kHz
BW.
-55 dBc over the operating frequency range measured in a
4 kHz BW
-60 dBm over 1610 to1 680 MHz in a 4 kHz BW for Inmarsat
applications.
All TX and RX inputs or outputs shall sustain +13 dBm per port
without damage.
Pass through from modem via ports 1 or 4 for primary and
backup access
Protocol: Interoperable with the SierraCom or Terrasat BUC.
Hardware is provided – software support for FSK is future.
Indoor circuitry to drive outdoor BUC and LNB RF Switched.
RS-232 and RS-485 Control or Unit.
ODU/BUC A ODU/BUC B/LNB A/LNB B and Combiner Switch
Unit.
BUC A/B FLT inputs
LNB A/B FLT
Separate FLT enable inputs for BUC and LNB
1 switch indicates EXT ODU/BUC Fault contact inputs
1 switch indicates EXT LNB fault contact inputs
2 switches - future
85 to 264 VDC, 47 to 63 Hz, 60W maximum, excluding BUC PS
85 to 264 VDC, 47 to 63 Hz, 60W maximum, excluding BUC PS
38 to 64 VDC, 60W maximum, excluding BUC PS
38 to 64 VDC, 60W maximum, excluding BUC PS
18 VDC at 500 mA, maximum. Selectable ON OFF via M&C
control. Voltage and current monitored with window limit
sensing. Short circuit protected.
Optional 24 to 48 VDC BUC power. Selectable ON/OFF via
M&C control. Voltage and current monitored with window limit
sensing. Short circuit protected.
220W maximum (Estimated)
300W maximum (Estimated)
B-2
Revision 1
MN/LCS4.IOM