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Cisco 2901
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Cisco 2911
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Cisco 2921
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Cisco 2951
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Services and Slot Density
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Embedded Hardware-Based Cryptography and Acceleration
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Yes
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Yes
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Yes
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Yes
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|
Cisco Unified SRST Sessions
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35
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50
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100
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250
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|
Cisco Unified CCME Sessions
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35
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50
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100
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150
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Total Onboard WAN 10/100/1000 Ports
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2
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3
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3
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3
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RJ-45-Based Ports
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2
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3
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3
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3
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SFP-Based Ports (use of SFP port disables the corresponding RJ-45 port)
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0
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0
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1
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1
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Service Module Slots
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0
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1
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1
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2
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Double-Wide Service Module Slots (use of a double-wide slot will occupy all single-wide service module slots in a 2900)
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0
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0
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1
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1
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EHWIC Slots
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4
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4
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4
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4
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Double-Wide EHWIC Slots (use of a double-wide EHWIC slot will consume two EHWIC slots)
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2
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2
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2
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2
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ISM Slots
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1
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1
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1
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1
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Onboard DSP (PVDM) Slots
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2
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2
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3
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3
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Memory DDR2 ECC DRAM - Default
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512 MB
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512 MB
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512 MB
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512 MB
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Memory (DDR2 ECC DRAM) - Maximum
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2 GB
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2 GB
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2 GB
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2 GB
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Compact Flash (External) - Default
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slot 0: 256 MB
slot 1: none
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slot 0: 256 MB
slot 1: none
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slot 0: 256 MB
slot 1: none
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slot 0: 256 MB
slot 1: none
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Compact Flash (External) - Maximum
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slot 0: 4 GB
slot 1: 4 GB
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slot 0: 4 GB
slot 1: 4 GB
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slot 0: 4 GB
slot 1: 4 GB
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slot 0: 4 GB
slot 1: 4 GB
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External USB 2.0 Flash Memory Slots (Type A)
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2
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2
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2
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2
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USB Console Port (Type B) (up to 115.2 kbps)
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1
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1
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1
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1
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Serial Console Port
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1
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1
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1
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1
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Serial Auxiliary Port
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1
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1
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1
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1
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Power-Supply Options
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AC and PoE
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AC, PoE, and DC
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AC, PoE, and DC
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AC, PoE, and DC
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RPS Support (External)
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No
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Cisco RPS 2300
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Cisco RPS 2300
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Cisco RPS 2300
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Power Specifications
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AC Input Voltage
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100 to 240 VAC auto ranging
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100 to 240 VAC auto ranging
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100 to 240 VAC auto ranging
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100 to 240 VAC auto ranging
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AC Input Frequency
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47 to 63 Hz
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47 to 63 Hz
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47 to 63 Hz
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47 to 63 Hz
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AC Input Current Range AC Power Supply (Maximum)
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1.5 to 0.6A
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2.2 to 1.0A
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3.4 to 1.4A
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3.4 to 1.4A
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AC Input Surge Current
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<50A
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<50A
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<50A
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<50A
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Typical Power (No Modules) (Watts)
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40
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50
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60
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70
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Maximum Power with AC Power Supply (Watts)
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150
|
210
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320
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340
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Maximum Power with PoE Power Supply (Platform Only) (Watts)
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175
|
250
|
370
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405
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Maximum End-Point PoE Power Available from PoE Power Supply (Watts)
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130
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200
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280
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370
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Maximum End-Point PoE Power Capacity with PoE Boost (Watts)
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N/A
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750
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750
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750
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DC Input Voltage
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N/A
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24 to 60 Vdc, autoranging positive or negative
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24 to 60 Vdc, autoranging positive or negative
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24 to 60 Vdc, autoranging positive or negative
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DC Input Current
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N/A
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(MAX) 8A (24V)
3.5A (60V)
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(MAX) 12A (24V)
5A (60V)
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(MAX) 12A (24V)
5A (60V)
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Physical Specifications
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Dimensions (H x W x D)
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1.75 x 17.25 x 17.3 in. (44.5 x 438.2 x 439.4 mm)
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3.5 x 17.25 x 12 in. (88.9 x 438.2 x 304.8 mm)
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3.5 x 17.25 x 18.5 in. (88.9 x 438.2 x 469.9 mm)
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3.5 x 17.25 x 18.5 in. (88.9 x 438.2 x 469.9 mm)
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Rack Height
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1RU (rack unit)
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2RU
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2RU
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2RU
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Rack-Mount 19 in. (48.3 cm) EIA
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Included
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Included
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Included
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Included
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Rack-Mount 23 in. (58.4 cm) EIA
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Optional
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Optional
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Optional
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Optional
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Wall-Mount (refer to installation guide for approved orientation)
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Yes
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Yes
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No
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No
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Weight with AC Power Supply (No Modules)
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13.4 lb (6.1 kg)
|
18 lb (8.2 kg)
|
29 lb (13.2 kg)
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29 lb (13.2 kg)
|
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Weight with AC PoE Power Supply (No Modules)
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14.3 lb (6.5 kg)
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19 lb (8.6 kg)
|
30 lb (13.6 kg)
|
30 lb (13.6 kg)
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Typical Weight Fully Configured
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16 lb (7.3 kg)
|
21 lb (9.5 kg)
|
34 lb (15.5 kg)
|
34 lb (15.5 kg)
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Airflow
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Front to side
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Side to side
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Back and Side to Front
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Back and Side to Front
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|
Optional Airflow Kit
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N/A
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Front to back
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N/A
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N/A
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Environmental Specifications
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Operating Conditions
|
|
Temperature: 5,906 feet (1,800m) Maximum Altitude
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32 to 104ºF (0 to 40ºC)
|
32 to 104ºF (0 to 40ºC)
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32 to 104ºF (0 to 40ºC)
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32 to 104ºF (0 to 40ºC)
|
|
Temperature: 9,843 feet (3,000m ) Maximum Altitude
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32 to 77ºF (0 to 25ºC)
|
32 to 104ºF (0 to 40ºC)
|
32 to 104ºF (0 to 40ºC)
|
32 to 104ºF (0 to 40ºC)
|
|
Temperature: 13,123 feet (4,000m) Maximum Altitude
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N/A
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32 to 86ºF (0 to 30ºC)
|
32 to 86ºF (0 to 30ºC)
|
32 to 86ºF (0 to 30ºC)
|
|
Temperature: Short-Term (per NEBS) 5906 feet (1,800m) Maximum Altitude
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N/A
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23°F to 122°F (-5 to 50°C)
|
N/A
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23°F to 122°F (-5 to 50°C)
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Altitude
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10,000 ft (3,000m)
|
13,000 ft (4,000m)
|
10,000 ft (3,000m)
|
13,000 ft (4,000m)
|
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Relative Humidity
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10 to 85%
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5 to 85%
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10 to 85%
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5 to 85%
|
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Short-Term (per NEBS) Humidity
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N/A
|
5% to 90%, but not to exceed 0.024 kg water/kg of dry air
|
N/A
|
N/A
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Acoustic: Sound Pressure (Typical/Maximum)
|
41/53 dBA
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51.8/62.9 dBA
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54.4/67.4 dBA
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54.4/67.4 dBA
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Acoustic: Sound Power (Typical/Maximum)
|
49/61 dBA
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58.5/70.3 dBA
|
62.6/74.5 dBA
|
62.6/74.5 dBA
|
|
Non-Operating Conditions
|
|
Temperature
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-40 to 158ºF (-40 to 70ºC)
|
-40 to 176ºF (-40 to 80ºC)
|
-40 to 158ºF (-40 to 70ºC)
|
-40 to 158ºF (-40 to 70ºC)
|
|
Relative Humidity
|
5 to 95%
|
5 to 95%
|
5 to 95%
|
5 to 95%
|
|
Altitude
|
15,000 ft (4,570m)
|
15,000 ft (4,570m)
|
15,000 ft (4,570m)
|
15,000 ft (4,570m)
|
|
Regulatory Compliance
|
|
Safety
|
UL 60950-1
CAN/CSA C22.2 No. 60950-1
EN 60950-1
AS/NZS 60950-1
IEC 60950-1
|
UL 60950-1
CAN/CSA C22.2 No. 60950-1
EN 60950-1
AS/NZS 60950-1
IEC 60950-1
|
UL 60950-1
CAN/CSA C22.2 No. 60950-1
EN 60950-1
AS/NZS 60950-1
IEC 60950-1
|
UL 60950-1
CAN/CSA C22.2 No. 60950-1
EN 60950-1
AS/NZS 60950-1
IEC 60950-1
|
|
EMC
|
47 CFR, Part 15
ICES-003 Class A
EN55022 Class A
CISPR22 Class A
AS/NZS 3548 Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000 (Immunity)
EN 55024, CISPR 24
EN50082-1
|
47 CFR, Part 15
ICES-003 Class A
EN55022 Class A
CISPR22 Class A
AS/NZS 3548 Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000 (Immunity)
EN 55024, CISPR 24
EN50082-1
|
47 CFR, Part 15
ICES-003 Class A
EN55022 Class A
CISPR22 Class A
AS/NZS 3548 Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000 (Immunity)
EN 55024, CISPR 24
EN50082-1
|
47 CFR, Part 15
ICES-003 Class A
EN55022 Class A
CISPR22 Class A
AS/NZS 3548 Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000 (Immunity)
EN 55024, CISPR 24
EN50082-1
|
|
Telecom
|
TIA/EIA/IS-968
CS-03
ANSI T1.101
ITU-T G.823, G.824
IEEE 802.3
RTTE Directive
|
TIA/EIA/IS-968
CS-03
ANSI T1.101
ITU-T G.823, G.824
IEEE 802.3
RTTE Directive
|
TIA/EIA/IS-968
CS-03
ANSI T1.101
ITU-T G.823, G.824
IEEE 802.3
RTTE Directive
|
TIA/EIA/IS-968
CS-03
ANSI T1.101
ITU-T G.823, G.824
IEEE 802.3
RTTE Directive
|