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Networking
Managers of data centers offering collocation and cloud services sign contracts guaranteeing 100% up-time. Most engineering types would say that's impossible; however, that kind of guarantee is the cost of doing business in today's market. If the service is anything less than 100%, clients get substantive refunds, and the data center loses credibility.
That could explain why data-center operators will spend millions of dollars on backup power-generation equipment, which more often than not amounts to diesel generator sets similar to the Cummins model pictured above.
To learn more about how these monsters work, I contacted the Cummings Power-Generation Business Unit, which is the division that builds generator sets of all sizes, from Oman RV models on up. At the division headquarters in Minnesota I met Richard Hallahan, Technical Marketing Manager for Data Centers and a certified professional engineer, and he ushered me into a high-tech conference room and asked how he could help.
Specifications
| Details | |
|---|---|
| Product code | RB2011UiAS-2HnD-IN |
| Architecture | MIPSBE |
| CPU | AR9344 |
| CPU core count | 1 |
| CPU nominal frequency | 600 MHz |
| Dimensions | 214mm x 86mm for PCB |
| License level | 5 |
| Operating System | RouterOS |
| Size of RAM | 128 MB |
| Storage size | 128 MB |
| Storage type | NAND |
| Tested ambient temperature | -35C to +65C |
| Suggested price | $129.00 |
Powering
| Details | |
|---|---|
| Max Power consumption | 11W |
| PoE in | Passive PoE |
| PoE out | Passive PoE |
| PoE in input Voltage | 8-30 V |
| Number of DC inputs | 2 (DC jack, PoE-IN) |
| DC jack input Voltage | 8-30 V |
Wireless
| Details | |
|---|---|
| Wireless 2.4 GHz number of chains | 2 |
| Wireless 2.4 GHz standards | 802.11b/g/n |
| Antenna gain dBi for 2.4 GHz | 4 |
| Wireless 2.4 GHz chip model | AR9344 |
Ethernet
| Details | |
|---|---|
| 10/100 Ethernet ports | 5 |
| 10/100/1000 Ethernet ports | 5 |
Fiber
| Details | |
|---|---|
| SFP DDMI | Yes |
| SFP ports | 1 |
Peripherals
| Details | |
|---|---|
| Serial port | RJ45 |
| Number of USB ports | 1 |
| USB Power Reset | Yes |
| USB slot type | USB type A |
| Max USB current (A) | 1 |
Other
| Details | |
|---|---|
| PCB temperature monitor | Yes |
| Voltage Monitor | Yes |
Wireless specifications
| 2.4 GHz | Transmit (dBm) | Receive Sensitivity |
|---|---|---|
| 1MBit/s | 30 | -96 |
| 11MBit/s | 28 | -80 |
| 6MBit/s | 30 | -96 |
| 54MBit/s | 27 | -80 |
| MCS0 | 30 | -92 |
| MCS7 | 25 | -73 |
hEX PoE is a five port Gigabit Ethernet router for locations where wireless connectivity is not required. The device has a USB 2.0 port and a SFP port for adding optical fiber connectivity. The ports 2-5 can power other PoE capable devices with the same voltage as applied to the unit.
It is affordable, small and easy to use, but at the same time comes with a very powerful 800MHz CPU, capable of all the advanced configurations that RouterOS supports. Less power adapters and cables to worry about! Max current is 1A per port, Ethernet ports are shielded.
It also supports passive PoE input and passive or 802.3af/at PoE output. Ethernet ports 2-5 can power other PoE capable devices with the same voltage as applied to the unit. Less power adapters and cables to worry about! It can power at/af mode B (4,5+)(7,8-) compatible devices, if 48-57 input voltage is used.
Specifications
| Details | |
|---|---|
| Product code | RB750r2 |
| Architecture | MIPSBE |
| CPU | QCA9533 |
| CPU core count | 1 |
| CPU nominal frequency | 850 MHz |
| Dimensions | 113x89x28mm. Weight without packaging and cables: 129g |
| License level | 4 |
| Operating System | RouterOS |
| Size of RAM | 64 MB |
| Storage size | 16 MB |
| Storage type | FLASH |
| Tested ambient temperature | -20C to +70C |
Powering
| Details | |
|---|---|
| Max Power consumption | 2W |
| PoE in | Passive PoE |
| PoE in input Voltage | 6-30 V |
| Number of DC inputs | 2 (DC jack, PoE-IN) |
| DC jack input Voltage | 6-30 V |
Ethernet
| Details | |
|---|---|
| 10/100 Ethernet ports | 5 |
hEX PoE is a five port Gigabit Ethernet router for locations where wireless connectivity is not required. The device has a USB 2.0 port and a SFP port for adding optical fiber connectivity. The ports 2-5 can power other PoE capable devices with the same voltage as applied to the unit.
It is affordable, small and easy to use, but at the same time comes with a very powerful 800MHz CPU, capable of all the advanced configurations that RouterOS supports. Less power adapters and cables to worry about! Max current is 1A per port, Ethernet ports are shielded.
It also supports passive PoE input and passive or 802.3af/at PoE output. Ethernet ports 2-5 can power other PoE capable devices with the same voltage as applied to the unit. Less power adapters and cables to worry about! It can power at/af mode B (4,5+)(7,8-) compatible devices, if 48-57 input voltage is used.
Specifications
| Details | |
|---|---|
| Product code | RB951Ui 2HnD |
| Architecture | MIPSBE |
| CPU | QCA9557 |
| CPU core count | 1 |
| CPU nominal frequency | 800 MHz |
| License level | 4 |
| Size of RAM | 128 MB |
| Storage size | 16 MB |
| Storage type | FLASH |
| Tested ambient temperature | -40 + 70 C |
Powering
| Details | |
|---|---|
| Max Power consumption | 9W |
| PoE in | Passive PoE |
| PoE out | 802.3af/at |
| PoE in input Voltage | 12-57 V |
| Number of DC inputs | 2 (DC jack, PoE-IN) |
| DC jack input Voltage | 12-57 V |
Ethernet
| Details | |
|---|---|
| 10/100/1000 Ethernet ports | 5 |
Fiber
| Details | |
|---|---|
| SFP ports | 1 |
Peripherals
| Details | |
|---|---|
| Number of USB ports | 1 |
| USB Power Reset | Yes |
| USB slot type | USB type A |
| Max USB current (A) | 1 |
Other
| Details | |
|---|---|
| PCB temperature monitor | Yes |
| Voltage Monitor | Yes |
Specifications
| Details | |
|---|---|
| Product code | RB450G |
| Architecture | MIPSBE |
| CPU | AR7161 |
| CPU core count | 1 |
| CPU nominal frequency | 680 MHz |
| License level | 5 |
| Operating System | RouterOS |
| Size of RAM | 256 MB |
| Storage size | 512 MB |
| Storage type | NAND |
| Tested ambient temperature | -20°C .. +70°C tested |
Powering
| Details | |
|---|---|
| PoE in | Passive PoE |
| PoE in input Voltage | 8-28 V |
| Number of DC inputs | 2 (DC jack, PoE-IN) |
| DC jack input Voltage | 8-28 V |
Ethernet
| Details | |
|---|---|
| 10/100/1000 Ethernet ports | 5 |
Peripherals
| Details | |
|---|---|
| Memory card type | microSD |
| Memory Cards | 1 |
| Serial port | RS232 |
Other
| Details | |
|---|---|
| PCB temperature monitor | Yes |
| Voltage Monitor | Yes |
The new updated revision of CCR1009 is here. We attempted to combine all the customer feedback and best practice in CCR device manufacturing that we learned over the last three years, since the first CCR1009 devices were launched.
Important changes
No switch-chip - the device now features only fully independent Ethernet ports each with a direct connection to the CPU, allowing to overcome previous shared 1Gbit limitation from switch-chip ports and utilize full potential of CPU processing power on those ports.
Combo-port - a single 1Gbit software interface that has two hardware interfaces - an SFP cage and a Gigabit Ethernet port, allowing you to use any type of connection available to you. It is also possible to switch between both physical interfaces in RouterOS. In an event of disconnect the combo-port provides hardware fail-over feature.
100Mbps SFP support - this is our first device that supports 100BASE-LX/100BASE-SX/100BASE-BX fiber modules, as well as standard 1.25G SFP modules.
More throughput - because the ports are now directly connected to the CPU, the new CCR1009 can achieve even higher throughput.
Specifications
| Details | |
|---|---|
| Product code | CCR1009-7G-1C-1S+ |
| Architecture | TILE |
| CPU | TLR4-00980CH-10CE-A3b |
| CPU core count | 9 |
| CPU nominal frequency | 1.2 GHz |
| Dimensions | 444x175x47mm |
| License level | 6 |
| Operating System | RouterOS |
| Size of RAM | 2 GB |
| Storage size | 128 MB |
| Storage type | NAND |
| Tested ambient temperature | -20C .. +60C |
Powering
| Details | |
|---|---|
| Max Power consumption | 34W |
| PoE in | Passive PoE |
| PoE in input Voltage | 15-57 V |
| Number of AC inputs | 2 |
| AC input range | 100-240 |
| Number of DC inputs | 1 (PoE-IN) |
Ethernet
| Details | |
|---|---|
| 10/100/1000 Ethernet ports | 7 |
| Ethernet Combo ports | 1 |
Fiber
| Details | |
|---|---|
| SFP+ ports | 1 |
Peripherals
| Details | |
|---|---|
| Number of SIM slots | 1 Smart card (Mini SIM) |
| Serial port | RS232 |
| Number of USB ports | 1 |
| USB Power Reset | Yes |
| USB slot type | microUSB type AB |
| Max USB current (A) | 1 |
Other
| Details | |
|---|---|
| CPU temperature monitor | Yes |
| Current Monitor | Yes |
| PCB temperature monitor | Yes |
| Voltage Monitor | Yes |
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