Comtech EF Data LCS-4 - Manual (Page 86)

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