Datasheet

Data Sheet
© 2009-2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 10 of 13
Cisco 2901 Cisco 2911 Cisco 2921 Cisco 2951
RJ-45-based ports 2 3 3 3
SFP-based ports (use of SFP port disables the
corresponding RJ-45 port)
0 0 1 1
Service Module slots 0 1 1 2
Double-wide Service Module slots (use of a
double-wide slot will occupy all single-wide service
module slots in a 2900)
0 0 1 1
EHWIC slots 4 4 4 4
Double-wide EHWIC slots (use of a double-wide
EHWIC slot will consume two EHWIC slots)
2 2 2 2
ISM slots 1 1 1 1
Onboard DSP (PVDM) slots 2 2 3 3
Memory DDR2 ECC DRAM – Default 512 MB 512 MB 512 MB 512 MB
Memory (DDR2 ECC DRAM) – Maximum 2 GB 2 GB 2 GB 2 GB
Compact Flash (external) – Default slot 0: 256 MB
slot 1: none
slot 0: 256 MB
slot 1: none
slot 0: 256 MB
slot 1: none
slot 0: 256 MB
slot 1: none
Compact Flash (external) – Maximum slot 0: 4 GB
slot 1: 4 GB
slot 0: 4 GB
slot 1: 4 GB
slot 0: 4 GB
slot 1: 4 GB
slot 0: 4 GB
slot 1: 4 GB
External USB 2.0 flash memory slots (Type A) 2 2 2 2
USB Console port (Type B) (up to 115.2 kbps) 1 1 1 1
Serial console port 1 1 1 1
Serial auxiliary port 1 1 1 1
Power-supply options AC and PoE AC, PoE, and DC AC, PoE, and DC AC, PoE, and DC
RPS support (External) No Cisco RPS 2300 Cisco RPS 2300 Cisco RPS 2300
Power Specifications
AC input voltage 100 to 240 VAC auto
ranging
100 to 240 VAC auto
ranging
100 to 240 VAC auto
ranging
100 to 240 VAC auto
ranging
AC input frequency 47 to 63 Hz 47 to 63 Hz 47 to 63 Hz 47 to 63 Hz
AC input current range AC power supply
(maximum)
1.5 to 0.6A 2.2 to 1.0A 3.4 to 1.4A 3.4 to 1.4A
AC input surge current <50A <50A <50A <50A
Typical Power (no modules) (Watts) 40 50 60 70
Maximum Power with AC power supply (Watts) 150 210 320 340
Maximum Power with PoE power supply (platform
only) (Watts)
175 250 370 405
Maximum end-point PoE power available from PoE
power supply (Watts)
130 200 280 370
Maximum end-point PoE power capacity with PoE
Boost (Watts)
N/A 750 750 750
DC Input Voltage N/A 24 to 60Vdc,
autoranging positive or
negative.
24 to 60Vdc,
autoranging positive
or negative.
24 to 60Vdc,
autoranging positive
or negative.
DC Input Current N/A (MAX) 8A (24V) 3.5A
(60V)
(MAX) 12A (24V) 5A
(60V)
(MAX) 12A (24V) 5A
(60V)
Physical Specifications
Dimensions (H x W x D) 1.75 x 17.25 x 17.3 in.
(44.5 x 438.2 x 439.4
mm)
3.5 x 17.25 x 12 in.
(88.9 x 438.2 x 304.8
mm)
3.5 x 17.25 x 18.5 in.
(88.9 x 438.2 x 469.9
mm)
3.5 x 17.25 x 18.5 in.
(88.9 x 438.2 x 469.9
mm)
Rack height 1RU (rack unit) 2RU 2RU 2RU
Rack-mount 19in. (48.3 cm) EIA included included included included
Rack Mount 23in. (58.4 cm) EIA optional optional optional optional
Wall-mount (refer to installation guide for approved Yes Yes No No