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Model:CISCO1941/K9 Cisco 1941 Router ISR G2

Product detail:Cisco 1941 Router w/2 GE,2 EHWIC slots,256MB CF,512MB DRAM,IP Base

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CISCO1941/K9 Overview

Cisco ISR G2 1941 Router

2 integrated 10/100/1000 Ethernet ports: GE0/0&GE0/1
2 enhanced High-Speed WAN Interface Card slots that can host 2 single wide or 1 double wide and 1 single wide (e)HWIC
1 Internal Services Module slot
Support fully integrated power distribution to modules supporting 802.3af Power over Ethernet (PoE) and Cisco Enhanced PoE
Highly secure collaborative communications with Group Encrypted Transport VPN, Dynamic Multipoint VPN, or Enhanced Easy VPN
Integrated threat control using Cisco IOS Firewall, Cisco IOS Zone-Based Firewall, Cisco IOS IPS, and Cisco IOS Content Filtering


LED area description
· SYS: Solid green ---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.

· ACTSolid or blinking ---any packets are transmitted/received on any WAN/LAN, or when monitoring system activity.

· PoEGreen ---PoE is available.
          Amber ---Power supply is not supplying PoE power.

cisco1941/k9 back LEDs

· ISM/WLANGreen ---Initialized.
                    Amber ---Initialized with error.

· CF 0&1Green ---Flash memory is busy. (NoteDo not remove the CompactFlash memory card when this light is on.)
               Amber ---Initialized with error.
               Blinking Green then turns off ---CompactFlash is ready for removal. 
               (Note:Remove the CompactFlash when the light turns off.)

· 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)Green ---GE link is established.
                Off ---No GE link is established.  

cisco1941/k9 back slots


· 2 integrated EHWIC slots for flexible configurations & support of two modules: 
         1 double wide HWIC-D or single wide EHWIC/HWIC module; 
         A 2nd single wide E-HIC/HWIC module.
(Each HWIC Slot offers high data throughput capability with up to 1.6 Gbps aggregate towards the router processor and up to 2 Gbps 
aggregate to other module slots over MultiGigabit Fabric (MGF)).

· AUX port (auxiliary port) ---RJ-45 connectors for Remote configuration.

· GE 0/0 & 0/1---Two Gigabit Ethernet ports (RJ-45 connectors).

· high-speed USB 2.0 ports enable another mechanism secure token capabilities and storage. 

· external Compact Flash slots supporting high-speed storage densities upgradeable to 4GB in density.

Compare to cisco 1900 series routers

Related Product List Price Price Description
CISCO1941/K9 $1,595 $623 Cisco 1941 Router w/2 GE,2 EHWIC slots,256MB CF,512MB DRAM,IP Base
CISCO1941-SEC/K9 $2,495 $1,073 Cisco 1941 Security Bundle w/SEC license PAK
CISCO1921/K9 $1,195 $478 Cisco 1921 Modular Router, 2 GE, 2 EHWIC slots, 512DRAM, IP Base
CISCO1921-SEC/K9 $1,695 $780 Cisco 1921 Security Bundle w/SEC license PAK

CISCO1941/K9 Specifications

Cisco 1941 Router details
Manufacturer Cisco Systems, Inc
Manufacturer Part Number CISCO1941/K9
Product Type Router
Form Factor External - modular - 2U
Dimensions (WxDxH) 34.3 cm x 29.2 cm x 8.9 cm
Weight 5.8 kg
DRAM Memory 512 MB (installed) / 2 GB (max)
Flash Memory 256 MB (installed) / 8 GB (max)
Routing Protocol OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing
Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet
Network / Transport Protocol IPSec
Remote Management Protocol SNMP, RMON
Features Cisco IOS IP Base , firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED)
Compliant Standards IEEE 802.3ah, IEEE 802.1ah, IEEE 802.1ag
Power AC 120/230 V ( 50/60 Hz 

  Cisco 1941 Router Specification

Services and Slot Density

Embedded hardware-based crypto acceleration (IPSec + SSL)


Total Onboard LAN 10/100/1000


RJ-45-Based Ports


SFP-Based Ports


SM Slots


Double-Wide SM Slots




Double-Wide EHWIC slots (use of a double-wide EHWIC slot will consume two EHWIC slots)


ISM Slots

1 (0 on the Cisco 1941W)

Memory (DDR2 Error Correction Code [ECC] ECC DRAM) - Default

512 MB

Memory (DDR2 ECC DRAM) - Maximum

2.0 GB

Compact Flash (external) - Default

slot 0: 256 MB

slot 1: none

Compact Flash (external) - Maximum

slot 0: 4 GB

slot 1: 4 GB

External USB flash memory slots (Type A)


USB Console Port (Type B) (up to 115.2 kbps)


Serial Console Port (up to 115.2 kbps)


Serial Auxiliary Port (up to 115.2 kbps


Power Supply Options


Redundant Power Supply Support


Power Specifications

AC Input Voltage

100-240 V ~

AC Input Frequency

47-63 Hz

AC Input Current range AC Power Supply (Max) (Amps)


AC Input Surge Current

<50 A

Typical Power (No Modules)

35 W

Maximum Power capacity with AC power supply

110 W

Maximum Power capacity with PoE power supply (platform only)

110 W

Maximum PoE device power capacity with PoE power supply

80 W

Physical Specifications

Dimensions (H x W x D)

3.5 in x 13.5 in x 11.5 in

Rack Height

2 RU

Rack-mount 19in. (48.3 cm) EIA


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


Weight-with AC power supply (no modules)

12 lbs

Weight-with POE power supply (no modules)

12.8 lbs

Maximum Weight-Fully Configured

14 lbs


Front to Side

Environmental Specifications

Operating Condition


Temperature-5906 feet (1800 m) max. altitude

0-40°C (32-104°F)

Temperature-9843 feet (3000 m) max. altitude

0-25°C (32-77°F)


3000 m (10000 ft)


10 to 85% RH

Acoustic: Sound Pressure (Typ/Max)

26/46 dBA

Acoustic: Sound Power (Typ/Max)

36/55 dBA

Transporation/Storage Condition


-40 - 70 oC (-40 - 158 oF)


5 to 95%RH


4570m (15000 ft)

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


CNS 13438

EN 300-386

EN 61000 (Immunity)

EN 55024, CISPR 24





ANSI T1.101

ITU-T G.823, G.824

IEEE 802.3

RTTE Directive


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Return Material Authorization (RMA) Process

Standard Hardware Warranty Policy :
Original new sealed Cisco product: 1 Year
Used Cisco product: 3 Month
The Support Contacts :
If your Cisco products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
The RMA Confirmation :
Your sales representative will send you RMA form. (Download RMA form)
(see attachment. PO No.; Product Serial No.; Description of Failure or Problem)
You Fill it and send back to sales representative.
RMA Return Shipment :
A : After ot RMA form, sales representative will tell you returned instruction by email, including shipping address and special shipping invoice.
B : Returned products have to be packed properly to avoid damage during delivery.
C : All accessories and user documentations should be returned.
D : Once shipped, pls tell sales representative tracking No. immediately.
Delivery Charges :
The Customer is responsible for paying shipment charges when returning to us; We will pay for shipment of the repaired items back to the customer
RMA Turnaround Time :
The defective products will be sent to Cisco Distributor for repair.
Within four weeks after receipt of returned item, the repaired or replacement item will be ready for return shipment.
Then item will be shipped to customer by Express such as DHL or Fedex.

Customer Reviews

  • Rating Snapshot ( Total of 5 Reviews )

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  • Average Customer Review

    (5 customer reviews)

    Rate and review this CISCO1941/K9

cisco 1941 K9

By February 25, 2014

It's no doubt that Cisco 1941 k9 is one of the best Cisco device. Easy to configure and pretty price! Wonderful!


By September 28, 2013

solid Cisco router, very well built. Expandable to do almost everything you could want it to. Cisco 1941, easy to upgrade.

Nice product

By July 13, 2013

good product, fast delivery

cisco 1941/k9

By September 13, 2012

Be Solid, reliable and simple to use. This cisco router owns 2 EHWIC slots,256MB CF,512MB DRAM,IP Base and none have failed me yet so far!


By July 26, 2011

It was a very good bussines .I recoment this seller because is better than others making offer about this type ios equipement

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CISCO1941/K9 Notes

Router-Switch.com has been dedicated to supplying large collections of cisco routers for your home or office networking. Shopping CISCO1941/K9 router with high quality, quick shipping and free CCIE Support from our Cisco experts!

Find step-by-step tech guides to configure Cisco 1941 Router w/2 GE,2 EHWIC slots,256MB CF,512MB DRAM,IP Base for your needs.

Get a quote for CISCO1941/K9 by email: [email protected], and start enjoying the professional sales service for solving the switch troubleshooting.

    Product FAQ

    Q: Which CISCO router is suitable as gateway router for medium size organization of about 80 client computers connected to the internet?

    A: Cisco1900 Series Router is OK.

    Q: 1941/K9 that I would wish to make to support for VPN?

    A: That depends, if you want to setup IPSec VPN, you would need SL-19-SEC-K9 or l-sl-19-sec-k9 license; if you want to use SSL VPN, you should buy a fl-sslvpn**-k9, the number depends on your SSL users.

    Q: I am looking at the pictures of Cisco1941-k9, but on the back of the router, I don't see a Fiber input from my ISP Provider and Fiber output for my switch.Well, this is what I am going to get from my ISP. They will provide me a dedicated internet connection with a Fiber cable into my office. And it will be Internet only or data only. So, input in router will be Fiber and output from router should also be Fiber to my switch.

    A: Do not worry, HWIC-1GE-SFP GigE High Speed WIC with One SFP Slot and EHWIC-1GE-SFP-CU are designed for your problem. They can add SFP ports to 1900 2900 & 3900 Series Routers.

    Q: I bought a 1941W but i bought it with just IPBASE license and now in need of the securityk9 and SSL VPN for it. I just want to confirm that what Im purchasing is for an IOS with payload encryption. I’m just looking for SSL for upto 10 users.

    A: SL-19-SEC-K9 & FL-SSLVPN10-K9 are either needed.

    Q: In site to site VPN, we know both end IP address, we assigned set peer cmd. If the interface are configured with DHCP(ISP), we don't know the interface IP address. At this scenario, how to configure site to site vpn. In remote VPN, how to configure remote VPN in cisco router. How to provide IP address dynamically to client host.

    A: Don't know if it can be used with a single site-to-site VPN, but DMVPN can use NHRP to support non-hub with dynamic tunnel IPs. The client is configured with a hub's IP, and it uses NHRP to register its public IP with the hub. The hub then "knows" the remote IP. (NB: it also supports the remote IP being changed.)

    Q: What is the basic setup required to configure 3 ISPs on a router interface?

    A: I would say that these are the basic steps for setting up 3 ISP on a single router. - decide which interface will be for which ISP. - obtain IP addressing information from each ISP. - configure appropriate IP address and subnet mask on each of the ISP interfaces. - configure address translation for each of the 3 ISP interfaces. - determine what approach you will use for routing. Will it be static routes or some dynamic routing protocol, or some mix of these? - implement the appropriate routing solution for each of the ISP.

    Q: We are receiving low internet upload speed (6-8Mps) at our office location. The download speed is good (50Mbps).

    Got in contact with the ISP Comcast and tried testing it bypassing our internal n/w i.e. connecting my laptop directly to Cienna (Comcast GW) and both speeds were around 50Mbps. Testing the same through my router the speed goes down. Just the Upload speed. Could there be a configuration in our router thats causing this? FYI on the internet interface the settings are 'Duplex full 'Speed auto

    A: Clear the counters and change the speed and duplex to auto/auto.

    Q: We are looking to put Cisco routers into some client sites. Was looking at 1841's but they are end of life now I believe, can someone recommend an alternative / or it's replacement?

    A: The 1941 is the successor to the 1841. However, new devices are faster, so you might be able to "downsize". For example, an 1841 is rated at 75 Kpps while a 890 is rated at 100 Kpps. Conversely, many new WAN circuits provide much more bandwidth then we usually obtained via TDM. If using such, you might need the faster successor or even a faster device.

    In other words, you may want to re-examine your needs rather then just using a successor platform becuase it's the successor platform.


    Q: I have bought new 1941 router and i have installed a new EHWIC-4ESG card to it, but unfortunately it is not being detected.

    Please suggest, i have tried with all the supported ios images. But still it is not working.


    A: What IOS are you using? You need a minimum of 15.1(2)T.

    Q. 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?

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

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

    A. 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.

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

    A. 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.

    Q. What countries are classified license-free zones?

    A. Countries belonging to the EU license-free zone include Australia, Austria, Belgium, Bulgaria, Canada, Cypress, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, and the United States.

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