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Product Specifications
Table 7. Product Specifications of Cisco 1921 Integrated Services Router
Cisco 1921 Integrated Services Router
Services and Slot Density
Embedded hardware-based cryptography acceleration (IPsec + SSL) Yes
RJ-45 onboard LAN/WAN 10/100/1000 ports 2
EHWIC slots 2
Doublewide EHWIC slots (use of a doublewide EHWIC slot will consume
2 EHWIC slots)
1
Cisco Integrated Services Module (ISM) slots 0
Memory (DDR2 DRAM): Default/maximum 512 MB/512 MB
USB flash memory (internal): Default/maximum 256 MB/256 MB
External USB flash-memory slots (Type A) 1
USB console port (mini-Type B) (up to 115.2 kbps) 1
Serial console port (up to 115.2 kbps) 1
Serial auxiliary port (up to 115.2 kbps 1
Integrated power supply AC and DC power-supply models
Power-supply options POE (external) - on AC models only
Redundant-power-supply support No
Power Specifications
AC input voltage 100-240V ~
AC input frequency 47-63 Hz
AC input current range AC power supply (maximum) (amps) 1.5-0.6
AC input surge current <50A
Typical power (no modules) 25W
Maximum power capacity with AC power supply 60W
Maximum power capacity with PoE power supply (platform only) 70W
Maximum PoE device power capacity with PoE power supply 80W
DC power input 32-60 VDC, 4A, positive or negative, single source
DC input wire size AWG 14 (2.0 mm2)
Safety ground-wire size AWG 14 (2.0 mm2), minimum
Wire terminal (lug) Amp/Tyco No.32957
Overcurrent protection 20A maximum
Physical Specifications
Dimensions (H x W x D) 1.75 x 13.5 x 11.5 in. (4.45 x 34.29 x 29.21 cm)
Rack height 1 rack unit (1RU)
Rack-mount 19 in. (48.3 cm) EIA Optional
Wall-mount (refer to installation guide for approved orientation) Yes
Weight: With AC power supply (no modules) 6.75 lb
Weight: With PoE power supply (no modules) 7.5 lb
Airflow Back to sides
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