Comtech L-Band LCS-4 Satellite Modem Redundancy Combiner Switch System
L-Band switching for modems, modulators & demodulators
LCS-4 L-Band Combiner / Splitter
The Comtech EF Data LCS-4 is a highly technologically sophisticated satellite modem combiner that delivers combining and/or splitting of L-Band RF frequencies. The LCS-4 also functions as a redundancy controller for RF switches located directly in the antenna hub.
The extremely vast features include
4-way L-Band combining for modulators
4-way L-Band splitting for demodulators
L-Band Interface to ODU/BUC and LNB
1:1 controller for BUC redundancy
1:1 controller for LNB redundancy
Hot swappable power supplies replaceable from the front
Options for redundant BUC power supplies
24VDCat 100 W
48VDCat 180 W
Integrated BUC Power supply supports up to 10 W C-Band and 8 W Ku-Band
High stability internal 0.02 ppm 10 MHz reference
Specifications
Operating Frequency 950 to 1950 MHz (L-Band)
TX IF Connector Type N, Female, 4 combined inputs, 2 switched outputs
TX Return Loss 10 dB minimum, 50 ohm
TX Gain -10 dB maximum loss, Combiner Input to unit output
TX Input Level 0 dBm composite operating, +10 dBm no damage
RX IF Connector Type F, Female, 2 switched inputs and 4 split outputs
RX Return Loss 10 dB minimum, 75 RX Gain 0 3 dB
LNB Input to Splitter Output RX Input Level 0 dBm composite operating, +10 dBm no damage
Frequency Reference Internal or external
Reference Stability 10 MHz, 0.02 ppm (Internal)
Internal/External Reference Phase Noise Frequency Offset dBc/Hz 1 Hz -80 10 Hz -110 100 Hz -135 1 kHz -140 10 kHz -150 100 kHz -150
Reference Level ODU/BUC: 0 3 dBm
LNB: -3 3 dBm
External Reference Input 10 MHz, -10 to +15 dBm, 1 BNC Female connector
Reference Output 0 dBm 3 dB at 4 BNC female connectors
Reference Return Loss Input/Output: 15 dB minimum, 50
Power Supply 1 or 2 assemblies hot swap from front panel. Includes unit power supply or unit power + ODU/BUC supply ODU/BUC Supply 24 VDC 100 W, AC Input (see prime power) 48 VDC 180 W, AC Input
Switchover Time Within 1.5 seconds of fault detection
Satellite Modem switching and redundancy for VSAT and Earth Station antennas
