Cisco 1921 Integrated Services Router

Services and Slot Density

Embedded hardware-based cryptography acceleration (IPsec)

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

Power-supply options

POE (external)

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

Physical Specifications

Dimensions (H x W x D)

1.75 x 13.5 x 11.5 in.

Rack height

1RU

Rack-mount 19in. (48.3 cm) EIA

optional

Wall-mount (refer to installation guide for approved orientation)

Yes

Weight - with AC power supply (no modules)

6.75 lbs

Weight - with PoE power supply (no modules)

7.5 lb

Airflow

Back to Sides

Environmental Specifications

Operating Condition

Temperature: 5906 feet (1800m) maximum altitude

0-40°C (32-104°F)

Temperature: 9843 feet (3000m) maximum altitude

0-25°C (32-77°F)

Altitude

3000m (10000 ft)

Humidity

10 to 85% RH

Acoustic: Sound pressure (typical/maximum)

32.99/58.33 dBA

Acoustic: Sound power (typical/maximum)

41.99/67.22 dBA

Transportation/Storage Condition

Temperature

-40 to 70°C (-40 to 158°F)

Humidity

5 to 95% RH

Altitude

4570m (15000 ft)