Cisco 1841 CISCO1841-SEC/K9 Fast Ethernet 1U Security Router 1x VWIC2-1MFT-T1/E1

Product Brand: Cisco
Product Condition: Used
Excluding VAT: £19.00
Including VAT: £22.80
Cisco 1841 CISCO1841-SEC/K9 Fast Ethernet 1U Security Router
1x VWIC2-1MFT-T1/E1

In Good Condition





  • Cisco 1841 CISCO1841-SEC/K9 Fast Ethernet 1U Security Router
  • 1 x Cisco VWIC2-1MFT-T1/E1 1-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card

Cisco 1800 Series integrated services routers are the next evolution of the award-winning Cisco 1700 Series modular access routers. The Cisco 1841 router is designed for secure data connectivity and provides significant additional value compared to prior generations of Cisco 1700 Series routers by offering more than a fivefold performance increase and integrated hardware-based encryption enabled by an optional Cisco IOS Software security image. The Cisco 1841 dramatically increase interface card slot performance and density over the Cisco 1700 Series while maintaining support for more than 30 existing WAN interface cards (WICs) and multiflex trunk cards (voice/WICs [VWICs]-for data only on the Cisco 1841 router).

The Cisco 1841 router features secure, fast, and high-quality delivery of multiple, concurrent services for small-to-medium-sized businesses and small enterprise branch offices. The Cisco 1841 router offers embedded hardware-based encryption enabled by an optional Cisco IOS Software security image; further enhancement of VPN performance with an optional VPN acceleration module; an intrusion prevention system (IPS) and firewall functions; interfaces for a wide range of connectivity requirements, including support for optional integrated switch ports; plus sufficient performance and slot density for future network expansion and advanced applications as well as an integrated real-time clock.

Integrated Services
The new, high-performance and secure integrated services architecture of the Cisco 1841 router enables customers to deploy simultaneous services such as secured data communications with traditional IP routing at wire-speed performance. By offering a hardware-based encryption on the motherboard that can be enabled with an optional Cisco IOS Software security image and the flexibility to integrate a wide array of services, modules, and interface cards, the Cisco 1841 router helps enable businesses to incorporate the functions of a standalone secure data solution.

Architecture Features and Benefits of Cisco 1841 Router



High-Performance Processor

• Supports concurrent deployment of high-performance, secure data services with headroom for future applications

Modular Architecture

• Offers wide variety of LAN and WAN options; network interfaces are field-upgradable to accommodate future technologies
• Provides many types of slots to add connectivity and services in the future on an "integrate-as-you-grow" basis
• Supports more than 30 modules and interface cards, including existing WAN (WIC) and multiflex (VWIC) interface cards (for data support only on the Cisco 1841 router) and advanced integration modules (AIMs)

Integrated Hardware-Based Encryption Acceleration

• Offers cryptography accelerator as standard integrated hardware that can be enabled with an optional Cisco IOS Software for 3DES and AES encryption support
• Provides enhanced feature set of security performance through support of optional VPN acceleration card for VPN 3DES or AES encryption

Ample Default Memory

• Provides 64 MB of Flash and 256 MB of synchronous dynamic RAM (SDRAM) memory to support deployment of concurrent services

Integrated Dual High-Speed Ethernet LAN Ports

• Helps enable connectivity speeds up to 100BASE-T Ethernet technology without the need for cards and modules
• Allows segmentation of the LAN

Support for Cisco IOS 12.3T, 12.4, 12.4T Feature Sets and Beyond

• Supports the Cisco 1841 router starting with Cisco IOS Software Release 12.3T
• Helps enable end-to-end solutions with support for latest Cisco IOS Software-based QoS, bandwidth management, and security features

Integrated Standard Power Supply

• Provides for easier installation and management of the router platform

Specifications of Cisco 1841 Router

Cisco 1800 Series

Cisco 1841

Target Applications

Secure data


Form Factor

Desktop, 1-rack-unit (1RU) height (4.75 cm high with rubber feet)






Yes (Optional Rackmount kit: ACS-1841-RM-19=)

Dimensions (W x D)

• 13.5 x 10.8 in. (34.3 x 27.4 cm)
• Height without rubber feet: 1.73 in. (4.39 cm)
• Height with rubber feet: 1.87 in. (4.75 cm)


• Maximum: 6.2 lb (2.8 kg); with interface cards and modules
• Minimum: 6.0 lb (2.7 kg) (no interface cards and modules)



Synchronous dual in-line memory module (DIMM) DRAM

DRAM Capacity

• Default: 256 MB
• Maximum: 384 MB

Flash Memory

External compact Flash

Flash Memory Capacity

• Default: 64 MB
• Maximum: 128 MB

Modular Slots-Total


Modular Slots for WAN Access


Modular Slots for HWICs


Modular Slots for Voice Support

None-The Cisco 1841 does not support voice

Analog and Digital Voice Support


VoIP Support

Voice-over-IP (VoIP) pass-through only

Onboard Ethernet Ports

Two 10/100

Onboard USB Ports

One (1.1)

Console Port

One-up to 115.2 kbps

Auxiliary Port

One-up to 115.2 kbps

Onboard AIM Slots

One (internal)

Packet-Voice-DSP-Module (PVDM) Slots on Motherboard

None-The Cisco 1841 does not support voice

Integrated Hardware-based Encryption on Motherboard


Encryption Support in Software and Hardware by Default

DES, 3DES, AES 128, AES 192, AES 256

Power Supply Specifications

Internal Power Supply


Redundant Power Supply


DC Power Support


AC Input Voltage

100 to 240 VAC


50 to 60 Hz

AC Input Current

1.5A maximum

Output Power

50W (maximum)

System Power Dissipation

153 BTU/hr

Software Support

First Cisco IOS Software Release


Cisco IOS Software default Image, Release

IP BASE, 12.4(15)T


Operating Temperature

32 to 104°F (0 to 40°C)

Operating Humidity

10 to 85% noncondensing operating; 5 to 95% noncondensing, nonoperating

Nonoperating Temperature

-4 to 149°F (-25 to 65°C)

Operating Altitude

10,000 feet (3000 meters) @ 77°F (25°C)

Noise Level

Normal operating temperature:

• <78° F/26°C: 34 dBA
• >78°F/26°C through <104°F/40°C: 37 dBA
• >104°F/40°C: 42 dBA

Regulatory Compliance


• UL60950-1
• CAN/CSA 60950-1
• AS 3260
• EN60950-1


• EN 55022, 1998, class A
• CISPR22, 1997, class A
• CFR47, Part 15, Subpart B, 1995, class A
• EN61000-3-2 Harmonic Current Emission (only for equipment >75W but <16A)
• EN61000-3-3 Voltage Fluctuation and Flicker (only for equipment ≤16A)


• CISPR24, 1997 ITE-Immunity characteristics, Limits and methods of measurement
• EN 55024,1998 ITE-Immunity characteristics, Limits and methods of measurement
• EN50082-1, 1997 Electromagnetic compatibility-Generic immunity standard, Part 1
• EN 300 386, 1997 Telecommunications network equipment EMC requirements
• The requirements are covered by the following standards:
• IEC 61000-4-2:1995 Immunity to Electrostatic Discharges
• IEC 61000-4-3:1995 Immunity to Radio Frequency Electromagnetic Fields
• IEC 61000-4-4:1995 Immunity to Electrical Fast Transients
• IEC 61000-4-5:1995 Immunity to Power Line Transients (Surges)
• IEC 61000-4-6:1996 Immunity to Radio Frequency Induced Conducted Disturbances
• IEC 61000-4-11:1995 Immunity to Voltage Dips, Voltage Variations, and Short Voltage Interruptions

Network Homologation

• USA-TIA-968-A, T1.TRQ.6-2001
• Canada-CS-03
• European Union-RTTE Directive 5/99
• Argentina-CTR 21
• Australia-AS/ACIF S002, S003, S016, S031, 3043
• Brazil-225-540-788, CTR3, 225-100-717 Edition 3, NET 001/92 1990
• China-ITU-G.992.1, ITU-G.992.1, ITU-G.991.2, CTR3, ITU I.431 1993
• Hong Kong-HKTA 2033, HKTA 2033, HKTA 2014, HKTA 2017 Issue 3 2003, HKTA 2011 Issue 1, HKTA 2011 Issue 2, HKTA 2013 Issue 1
• India-I_DCA_18_02_Jun_99-199, S/ISN-01/02 Issue 1999 S/ISN-02 1 1998, IR/PRI-01/02 Issue 1 1998, S/INT-2W/02 MAY 2001, S/INT-2W/02 MAY 2001
• Israel-U.S. approval accepted
• Japan-Technical condition (DoC acceptance in process)
• Korea-U.S. approval accepted
• Mexico-U.S. approval accepted
• New Zealand-PTC 270/272, CTR 3, ACA 016 Revision 4 1997, PTC 200
• Singapore-IDA TS ADSL1 Issue 1, IDA TS ADSL 2, IDA TS HDSL, IDA TS ISDN 1 Issue 1 1999, IDA TS ISDN 3 Issue 1 1999, IDA TS PSTN 1 Issue 4, IDA TS PSTN 1 Issue 4, IDA TS PSTN 1 Issue 4
• South Africa-U.S. approval accepted
• Taiwan-U.S. approval accepted
TH 216425

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