sat-nms I/O Frontend Processor IO-FEP
The sat-nms IO-FEP M&C Front-end Processor interfaces to any low level interfaces commonly used in a satellite ground stations like equipment alarm contacts, waveguide- or coaxial-switches and other status signals. It provides opto-coupled in- and outputs and potential free relay output contacts. All these interfaces are then monitored and controlled locally in the sat-nms IO-FEP.
You can also integrate the IO-FEP seamlessly in our sat-nms M&C or NMS systems. But also the integration in other monitoring solutions is possible because of SNMP, HTTP and RS232 interfaces. The IO-FEP works also as a stand-alone system with a user friedly web browser interface and an integrated event and alarm log.
RF-Inhibit for HPA
As additional feature the IO-FEP can also perform during the switch-over of waveguide switches automatic RF-inhibit of high power amplifiers (HPA). Both cases are covered, first the selective RF inhibit in a n:1 redundant configuration of only affected HPAs. Second, if the waveguide switches used in the ground station do not provide the RF inhibit feature at all, the IO-FEP takes care about the correct sequence in switching a waveguide switch if he is also connected to an HPA.
Redundancy switching
The sat-nms IO-FEP includes in its software also redundancy switch modules so that an external redundancy switch is no longer necessary. The optional redundancy switching (or protection switching) module monitors the defined alarm contacts and commands the appropriate switches in case of an alarm. This may be used for an 1:1 redundancy of transmit chains or to replace and old LNA or LNC protection controller.
Applications
- e.g. in satellite ground stations
- Monitoring of Alarm Contacts
- Control of Waveguide and Coaxial switches
- Redundancy switching with Inhibit
Features
- Ethernet interface for SNMP and HTTP
- Web Browser User Interface
- Serial RS232 Interfae
- 32 or 48 digital inputs
- 6 relay outputs and 10 opto-coupler outputs
- 8 or 16 connectors for waveguide switches
- Includes Redundancy switching functionalityg
- Supports RF inhibit contacts of waveguide switches and HPAs.
- Including temperature measurement with up to 4 external PT-1000 sensors
- Integrated Alarm/ Event logging
- Compact design and mounted on a DIN-rail
- Interfaces to any higher level M&C System
Web browser user interface

