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

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