System Interface Products (SIP)
System Interface Products (SIP)
RPM - Redundant Power Module - Dual Output
While modern power supplies are sophisticated designs with superlative performance, they remain the device with the shortest MTBF. To mitigate this threat, Orbital Research introduces the RPM (Redundant Power Module) to provide one for one (1:1) DC power redundancy. This simple, low cost module provides an extremely reliable passive method of providing automatic backup power for the majority of satellite system devices. It has two inputs, one for each power supply, and simply takes the power supply with the higher voltage. So, if one power supply fails, the RPM automatically switches to the other supply.
The RPM also has dual outputs, so that you can supply two separate devices, such as a BUC/LNB combo in a VSAT, or both polarities for LNBs. Since the RPM uses our standard SIP chassis, it integrates easily into stacks, plates, or rack-mountable chassis with our other modules.
RPM or RPT?
The Orbital Redundant Power Module provides DC in DC out redundancy only, while the Redundant Power Tee provides for redundant power insertion into the L band signal.
Redundant Power Supplies
The first step in Redundancy, is to protect against the most common cause of failure - loss of power. The Redundant Power Module automatically switches to the second power supply in case of failure. The power supplies are hot-swappable, making the RPM the least expensive redundancy devise for your system.
Modems and receivers often cut costs in the design of their power supplies. LNBs, especially external reference units can put too much of a load on a cheap power supply, causing premature failure. By taking the powering function away from modems and receivers, the user can add the quality and margin needed in the power supply for reliable and consistent system operation.
As well, powering the BUC or LNB independently makes for much easier splitting or combining of L band signals, and keeps the system fully on while adding or removing modems.
Please note that just because you do not see a product listed, does not mean that we don't (or won't), make it. Custom sizes, custom connectors, custom configurations, custom specifications, stack, plate or rack mounting, integrations of SIP components can all be done to order.
Functional
- Will operate with LNBs, VSATs, BDCs BUCs, and Modems
- O ring sealed connectors and Hylomar sealed enclosure
Structural
- The system mounts to the back of the rack, out of the way. This makes the product ideal for flyaway systems
- Diode protection to prevent accidentally applying reverse polarity DC.
- Solid aluminum billet, milled box and lid
- Allodyne finish, Mil SPEC C-5541 CAT-3
Benefits
- Lower cost, higher quality with a one-box solution
- No labor to source, assemble and test a 'kluge'
- Custom design variations welcome
- Custom labeling requirements welcome
Flexible Solutions
An Orbital RPM - Redundant Power Module integrates with other Orbital SIP components such as Mux Tees, 10 MHz Splitters, Combiners, Dividers, etc, minimizing insertion loss, maximizing port to port isolation, matching impedances, and giving a choice of connectors to provide ease of installation.
Made for Professional Use, Made for Satellite
Orbital Systems Interface Products are made specifically for the satellite industry, and are designed for professional and industrial quality systems. Orbital SIP products are built for rack mounting, and for use indoors or out.
RPM - Redundant Power Module
| Options | Option Connector Part Number | Values |
| L-Band: To LNB/BUC & Receiver/Modem | F | F, 75W connector |
| N | N, 50W connector | |
| S | SMA, 50W connector | |
| DC Supply | B | BNC (preferred) connector |
| F | F connector | |
| N | N connector | |
| S | SMA connector | |
| FT | Feedthrough | |
| BBi | BNC with Binding Post Adapter | |
| BP | BNC with Pigtail Adapter |
Remember that the Orbital Mux Tee is BI-DIRECTIONAL
RPM – Redundant Power Module Dual Output
Click to download specs & mechanical PDF
Switching Power Supply
PS1 for North America
PS2 for Global
Mechanical Drawing
The Orbital RPM Redundant Power Module provides automatic DC power supply redundancy, with dual DC outputs, at a low cost.
Shown here with dual power supplies, (not included).

| SIP Solutions | |
Systems Interface Products |
|
| Modem has DC power, but not enough to power my new BUC. | |
| I want to lock several modems to a single 10 MHz Oscillator, and insert high power DC to my BUC. | |
| I have a pair of modems, one of which provides a 10 MHz reference, but I don't have enough power from my modem for my new high power BUC. | |
| I have a pair of modems and I need to use the 10 MHz reference from one of them and split it. I need to take the L-Band signal from both modems and combine it with the 10 MHz reference. Now I need to insert DC power for a pair of high power BUCS. | |
| I need to combine the L-Band signals from a pair of modems with an common, external 10 MHz source, and insert power to a pair of high power BUCs. | |
| My modem does not have sufficient DC to power my BUCs, and I can't switch DC power to the BUC, what to do? | |
| We need a system that will provide us with both horizontal and vertical polarities at Ku Band. In addition, the system must offer 1 for 2 redundancy. | |
| More SIP Solutions | |
| Using an Orbital MT-40 Mux Tee to multiplex the L-Band, and 10 MHz reference signals with DC power for a BUC. | |
| Using an Orbital MT-40 Mux Tee as a Bias Tee to insert DC Power to a BUC | |
| Using an Orbital MT-40 Mux Tee as a Diplexer to insert a 10 MHz reference to a BUC | |
| Using an Orbital Redundant Power Tee provides inexpensive power supply redundancy. | |
| Using an Orbital Thru Tee to provide a separate DC power supply to the BUC, while passing the 10 MHz signal through from the modem. | |
How to Order an RPM - Redundant Power Module
For pricing options please call 1-604-856-0305 or contact us.
While modern power supplies are sophisticated designs with superlative performance, they remain the device with the shortest MTBF. This simple, low cost module provides an extremely reliable, passive method of providing automatic backup power for the majority of satellite system components.
The RPM is the least expensive type of redundancy insuring against the most common source of failure - failure of the power supply.




