Rack-mounting system for improving redundancy
A rack-mounting system includes a rack with a number of shelves for mounting electronic modular components. At least two modular components are mounted on each shelf, each component with width approximately equal to W/n, where W equals the width of the shelf and n equals the maximum number of modular components to be mounted on a single shelf. Each modular component is fully self-contained, stand-alone, and operates with full independence of the other self-contained, stand-alone components. At least two modular components have the same function. Means is provided for switching out a defective component and switching in a standby component that performs the same function, thus enhancing redundancy.
1. A rack-mounting system comprising
a rack including at least one shelf for mounting electronic modular components and having a width W;
at least two modular radio frequency (RF) components mounted on said at least one shelf, each component having a width approximately equal to W/n, where W is equal to the width of the shelf and n is equal to the maximum number of modular components to be mounted on a single shelf of the rack,
each modular component being a fully self-contained, stand-alone component that is fully operational independent of the other self-contained and stand-alone components mounted on the rack and at least two modular components on the rack having the same functionality; and
RF switchover means for switching out a defective modular component and switching in another modular component of the same functionality to enhance the redundancy of the system.
2. A rack-mounting system as defined in claim 1 , wherein n=3.
3. A rack-mounting system as defined in claim 1 , wherein W is equal to approximately 19″.
4. A rack-mounting system as defined in claim 1 , wherein said modular components have a height approximately equal to one rack unit.
5. A rack-mounting system as defined in claim 1 , wherein the rack-mounting system is a satellite communication system, and said components on a single shelf of the rack unit includes two block upconverters (BUCs) and a redundant switching unit (RCU) to provide a 1:1 redundant system configuration.
6. A rack-mounting system as defined in claim 1 , wherein the rack-mounting system is a satellite communication system, and wherein two stacked rack shelves are each approximately a single rack unit high, three block upconverters (n=3) are mounted on a first shelf, and an n-switching unit (NSUZ) is mounted on the other shelf and associated with said three block upconverters to form a 1:2 dedundant system configuration.
7. A rack-mounting system as defined in claim 1 , wherein the rack-mounting system is a satellite communication system, and said components on a single shelf of the rack unit includes two block downconverters (BDC) and a redundant switching unit (RCU) to provide a 1:1 redundant system configuration.
8. A rack-mounting system as defined in claim 1 , wherein the rack-mounting system is a satellite communication system, and wherein two stacked rack shelves are each approximately a single rack unit high, three block downconverters (BDC) are mounted on a first shelf, and an n-switching unit (NSUZ) is mounted on the other shelf and associated with said three block downconverters to form a 1:2 redundant system configuration.
9. A rack-mounting system as defined in claim 1 , wherein the rack-mounting system is a satellite communication system, and wherein n=3 with the components including an L-band test translator (TLT), a block upconverter (BUC) and one block downconverter (BDC).
10. A rack-mounting system as defined in claim 1 , wherein the rack-mounting system is a satellite communication system, and wherein n=3 with the components including an RF-band test translator (TLT), a block upconverter (BUC) and one block downconverter (BDC).
11. A rack-mounting system as defined in claim 1 , wherein n=2 and the width of each component mounted on a single shelf is approximately W/2.
12. A rack-mounting system as defined in claim 1 , wherein W is equal to approximately 19″ and the components are approximately 6″.
13. A rack-mounting system as defined in claim 1 , wherein input switches connect inputs of a plurality of RF components comprising block upconverters.
14. A rack-mounting system as defined in claim 1 , wherein said RF switchover means comprise L-band switches.
15. A rack-mounting system as defined in claim 1 , wherein output switches connect outputs of a plurality of RF components comprising block upconverters.
16. A rack-mounting system as defined in claim 1 , wherein n=3 and each component has a width somewhat less than W/3 to compensate interface clearances and mounting hardware.