CISCO1921/K9

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Name:	CISCO1921/K9
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.
	4.9 56 Rating: 97% 4.9/5.0 56 Reviews 10 Questions
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Condition:	New Factory Sealed
Replacement:	ISR4221/K9

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CISCO1921/K9

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

List Price: US$1,195.00

Price: US$347.65

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Overview

CISCO1921/K9 Overview

The Cisco 1921 Router, which Memory and Flash Memory can't upgrade, is designed for branch offices.

Quick Specs

Figure 1 shows the front view of Cisco Router 1921/K9.

CISCO1921/K9

Table 1 shows the Quick Specs of the CISCO1921/K9.

Product Code	CISCO1921/K9
Rack Units	1U
Interfaces	2 integrated 10/100/1000 Ethernet ports: GE0/0&GE0/1
Expansion Slot(s)	2 enhanced High-Speed WAN Interface Card (EHWIC) slots
RAM	512 MB/512 MB
Flash Memory	256 MB/256 MB
Dimensions	1.75 x 13.5 x 11.5 in.
Package Weight	5.41 Kg

Product Details

Figure 2 shows the statue LEDs, on the front panel of the 1921/K9, including three statues: SYS, ACT and PoE.

Cisco 1921/K9 router front panel

Table 2 shows the front panel LED area description.

LED	Color	Description
SYS	Solid green	Solid green indicates normal operation.
	Blinking green	System is booting or is in ROM monitor mode.
	Amber	System error.
	Off	Power is off or system board is faulty.
ACT	Green	Solid or blinking when any packets are transmitted or received on any WAN or LAN, or when monitoring system activity.
PoE	Green	PoE is available.
PoE	Amber	Power supply is not supplying PoE power.

Figure 3 shows the back panel of the CISCO1921/K9.

Cisco 1921/K9 router back LED

Note:

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

Table 3 shows the back panel LED area description.

LED	Color	Description	Location
Flash LED	Green	Blinking means software is accessing the internal USB Flash (eUSB) device.	Back Panel
Flash LED	Amber	Initialized with error.	Back Panel
EN (USB serial console port)	Green	The USB console port is active.	Back Panel
EN(RJ-45 console port)	Green	The RJ-45 console port is active.	Back Panel
S (Speed)	1 blink + pause	GE port operating at 10 Mb/s.	Back Panel
	2 blink + pause	GE port operating at 100 Mb/s.
	3 blink + pause	GE port operating at 1000 Mb/s.
L (Link)	Green	GE link is established.	Back Panel
L (Link)	Off	No GE link is established.	Back Panel

Figure 4 shows the ports and slots on the back panel of Cisco 1921/K9.

Cisco 1921/K9 router back slot

Note:

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

* Cisco 1921/K9 supports 1 integrated EHWIC slots for flexible configurations. It supports two modules:

1. 1 double wide HWIC-D or single wide EHWIC/HWIC module or 2 single wide EHWIC/HWIC module.
2. High-speed USB 2.0 ports enable another mechanism secure token capabilities and storage.

Figure 5 shows the unboxing view of CISCO1921/K9.

cisco1921-k9-unpackaged

Recommended Cards and Licenses

Table 4 shows recommended EHWIC, HWIC, VWIC cards and licenses for this router.

Category	Models	Description
EHWIC	EHWIC-1GE-SFP-CU	Cisco 1900, 2900, 3900 Router EHWIC WAN Card EHWIC-1GE-SFP-CU
EHWIC	EHWIC-4ESG	Four port 10/100/1000 Base-TX Gigabit Ethernet switch interface card for Cisco 1900 2900 3900 Routers
HWIC	HWIC-2FE	HWIC two routed port Cisco Router High-Speed WAN Interface card
	HWIC-1T	1-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card
	HWIC-2T	2-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card
VWIC	VWIC3-1MFT-T1/E1	Cisco Voice/WAN Card VWIC3-1MFT-T1/E1
	VWIC3-2MFT-T1/E1	Cisco Voice/WAN Card VWIC3-2MFT-T1/E1
	VWIC3-1MFT-G703	Cisco Voice & WAN T1/E1 interface moudle VWIC3-1MFT-G703
	VWIC3-2MFT-G703	Cisco Voice/WAN Card VWIC3-2MFT-G703
Licenses	L-SL-19-DATA-K9	Cisco 1900 IOS License L-SL-19-DATA-K9= Data E-Delivery PAK for Cisco 1900
	L-SL-19-SEC-K9	Security License for Cisco 1900
	L-SL-19-APP-K9	AppX License with; DATA and WAAS for Cisco 1900 Series

Get more information

Do you have any question about the Cisco 1921/K9 router?

Quality Certifications

Specification

CISCO1921/K9 Specification

CISCO1921/K9 Specification
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
Package Weight	11.9 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)
Airflow	Back to sides
Environmental Specifications
Operating Conditions
Temperature: 5906 ft (1800m) maximum altitude	32-104°F (0-40°C)
Temperature: 9843 ft (3000m) maximum altitude	32-77°F (0-25°C)
Altitude	10,000 ft (3,000m)
Humidity	10 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)
Humidity	5 to 95% RH
Altitude	15,000 ft (4,570m)
Regulatory Compliance
Safety	UL 60950-1 CAN/CSA C22.2 No. 60950-1 EN 60950-1 AS/NZS 60950-1 IEC 60950-1
EMC	47 CFR, Part 15 ICES-003 Class A EN55022 Class A CISPR22 Class A AS/NZS 3548 Class A VCCI V-3 EN 300-386 EN 61000 (Immunity) EN 55024, CISPR 24 EN50082-1
Telecom	TIA/EIA/IS-968 CS-03 ANSI T1.101 IEEE 802.3 RTTE Directive

Customer Reviews

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Q&A

Questions & Answers

I have a 1921 router. Using usb cable I can connect to the console but cannot get the router into rommon mode. I saw a post for a 1941 router where you can remove the flash to get it into rommon mode, but the 1921 flash cannot be removed. I am using Mac terminal and screen command but am not able to send break signal. would love to know if it’s possible.

I think you can. The CF is "hidden" behind a dust cover. The slots are located at the BACK of the unit, to the left. The back is where the ports and EHWIC slots are.

The 1900 series routers which IOS supports IP SLA?

The dedicated or SLAs router is used exclusively for Cisco IOS IP SLA operations and is connected to the edge routers to simulate the customer network traffic. It is typically a Cisco 1900, 2800, 2900, 3800, 3900 or 7200 Series Router.

Cisco 1921 CAN support Vwic2-2MFT-T1/E1?

YES.

Please urgently confirm that this Router CISCO1921/K9 has BGP (Border Gateway Protocol).

YES, BGP is supported by almost all Cisco Routers.

Learn More

What modules should I choose for my CISCO1921/K9?

Look at this table. The table shows recommended modules for this router.

Can I upgrade my CISCO1921/K9 to CISCO1921-SEC/K9? And how can I do it?

Yes, you can upgrade it with L-SL-19-SEC-K9=.

On the Cisco ISR G2 routers with the SEC-K9 license, what tunnel count and performance throughput are available?

The SEC-K9 permanent licenses apply to the Cisco 1900, 2900, and 3900 ISR G2 platforms; these licenses limit all encrypted tunnel counts to 225 tunnels maximum for IP Security (IPsec), Secure Sockets Layer VPN (SSL VPN), a secure time-division multiplexing (TDM) gateway, and secure Cisco Unified Border Element (CUBE) and 1000 tunnels for Transport Layer Security (TLS) sessions. The SEC-K9 license limits encrypted throughput to less than or equal to 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. This requirement applies for the Cisco 1900, 2900, and 3900 ISR G2 platforms.

Why do I need to purchase the SEC-K9 license as a spare?

If you purchase a Cisco ISR G2 chassis and later decide to turn on security features, you must buy a SEC-K9 license. The administrator must download the license to the router and follow the license installation instructions that come with the license to be able to use the security features on the router.

If I purchased a Cisco ISR G2 router on Cisco IOS Software Release 15.0(1) M before the limitation was imposed, what should I do? And should I need to upgrade my Cisco IOS Software?

Assuming that you already have purchased the securityk9 package for encryption, you must purchase a HSEC-K9 license as a spare.

The problem i'm running into is all the sample configs for Cisco 1921 sample working config for VDSL with a VA-DSL-A card, i'm finding are for much older code, i need it for a 1921 with version 15.2(3)T.

Hi, I believe you have an EHWIC-VA-DSL-A card installed on the C1921 device. The sample configuration for the same would be as follows, 1. Configure the Controller, 2. Configure the Ethernet interface & its sub-interface, 3. Configure the Dialer interface and as per you requirements, you can configure the Authentication, IP addressing etc.

I think you can. The CF is "hidden" behind a dust cover. The slots are located at the BACK of the unit, to the left. The back is where the ports and EHWIC slots are.

The 1900 series routers which IOS supports IP SLA?

Cisco 1921 CAN support Vwic2-2MFT-T1/E1?

YES.

Please urgently confirm that this Router CISCO1921/K9 has BGP (Border Gateway Protocol).

YES, BGP is supported by almost all Cisco Routers.

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Download

Resources Downloads

Support and Resources

Transition Guide

Guide to Upgrade Your ISR G1 and ISR G2 Routers to ISR 4000

Model Datasheet

CISCO1921/K9 Datasheet