CISCO 1921/K9

in stock

Model: CISCO1921/K9, Cisco 1921 Router ISR G2 – Cisco ISR 1900 Series

Detail: Cisco ISR 1900 Series, Cisco 1921 Modular Router, 2 GE, 2 EHWIC slots, 512DRAM, IP Base

Overview: Designed for branch offices, the CISCO 1921/K9 router delivers secure mobility, data, and application services. This product’s power distribution is fully integrated to modules that support 802.3af Cisco Enhanced PoE and Power over Ethernet. It comes with:

  • 2 integrated Ethernet ports (10/100/1000)
  • 2 enhanced High-Speed WAN Interface Card slots (EHWIC) that can host 1 double wide module or 2 single wide

Use the Cisco 1921/K9 to facilitate secure collaborative communications with Enhanced Easy VPN, Dynamic Multipoint VPN, and Group Encrypted Transport VPN.

The CISCO 1921/K9 offers a high level of security and integrated threat control using Cisco IOS Content Filtering, Cisco IOS IPS, Cisco IOS Zone-Based Firewall, and Cisco IOS Firewall.

SKU: c1921-01 Category:

Services and Slot Density

Embedded hardware-based cryptography acceleration (IPsec + SSL)Yes
RJ-45 onboard LAN/WAN 10/100/1000 ports2
EHWIC slots2
Doublewide EHWIC slots (use of a doublewide EHWIC slot will consume 2 EHWIC slots)1
Cisco Integrated Services Module (ISM) slots0
Memory (DDR2 DRAM): Default/maximum512 MB/512 MB
USB flash memory (internal): Default/maximum256 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 kbps1
Integrated power supplyAC and DC power-supply models
Power-supply optionsPOE (external) – on AC models only
Redundant-power-supply supportNo

Power Specifications

AC input voltage100-240V ~
AC input frequency47-63 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 supply60W
Maximum power capacity with PoE power supply (platform only)70W
Maximum PoE device power capacity with PoE power supply80W
DC power input32-60 VDC, 4A, positive or negative, single source
DC input wire sizeAWG 14 (2.0 mm2)
Safety ground-wire sizeAWG 14 (2.0 mm2), minimum
Wire terminal (lug)Amp/Tyco No.32957
Overcurrent protection20A 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 height1 rack unit (1RU)
Rack-mount 19 in. (48.3 cm) EIAOptional
Wall-mount (refer to installation guide for approved orientation)Yes
Package Weight11.9 lb (5.41 Kg)
Weight: With AC power supply (no modules)6.75 lb (3.06 Kg)
Weight: With PoE power supply (no modules)7.5 lb (3.4 Kg)
AirflowBack to sides

Environmental Specifications

Operating Conditions

Temperature: 5906 ft (1800m) maximum altitude32-104°F (0-40°C)
Temperature: 9843 ft (3000m) maximum altitude32-77°F (0-25°C)
Altitude10,000 ft (3,000m)
Humidity10 to 85% relative humidity (RH)
Acoustic: Sound pressure (typical/maximum)32.99/58.33 dBA
Acoustic: Sound power (typical/maximum)41.99/67.22 dBA

Transportation and Storage Conditions

Temperature-40 to 158°F (-40 to 70°C)
Humidity5 to 95% RH
Altitude15,000 ft (4,570m)

Regulatory Compliance


UL 60950-1

CAN/CSA C22.2 No. 60950-1

EN 60950-1

AS/NZS 60950-1

IEC 60950-1


47 CFR

Part 15

ICES-003 Class A

EN55022 Class A

CISPR22 Class A

AS/NZS 3548 Class A


EN 300-386

EN 61000 (Immunity)

EN 55024






ANSI T1.101

IEEE 802.3

RTTE Directive

Front Panel LED Area

1921 k9 led area





Solid green

Solid green indicates normal operation.

Blinking green

System is booting or is in ROM monitor mode.


System error.


Power is off or system board is faulty.



Solid or blinking when any packets are transmitted or received on any WAN or LAN, or when monitoring system activity.



PoE is available.


Power supply is not supplying PoE power.

Back Panel LED Area

cisco1921 k9 back panel info
  1. Flash LED
  2. EN (USB serial console port)
  3. EN (RJ-45 console port)
  4. S (Speed)
  5. L (Link)
  6. Baud reset
  7. Ground connector
  8. On/Off switch
  9. USB port
  10. Kensington security slot




Flash LED


Blinking means software is accessing the internal USB Flash (eUSB) device.


Initialized with error.

EN (USB serial console port)


The USB console port is active.


console port)


The RJ-45 console port is active.

S (Speed)

1 blink + pause

GE port operating at 10 Mb/s.

2 blink + pause

GE port operating at 100 Mb/s.

3 blink + pause

GE port operating at 1000 Mb/s.

L (Link)


GE link is established.


No GE link is established.

Back Panel Ports and Slots Area

  1. EHWIC slot
  2. Auxiliary port
  3. GE 0/0(down)and 0/1(up)
  4. Input power connector
  5. USB serial port
  6. RJ-45 serial console port
  7. USB port
  8. POE


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