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CISCO1841-ADSL2 |
Description: | 1841 bundle, HWIC-1ADSL, IP BB, 64F/256D |
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GTIN: | 632102467841 ![]() |
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CISCO1841-ADSL2 Overview
CISCO1841-ADSL2 is a highly engineered integrated services router designed with a modular architecture that allows for flexible expansion and connectivity. It offers versatile power options via an AC power supply and supports dual WAN configurations with an integrated ADSL2 interface alongside two Ethernet ports that can be tailored as LAN or WAN, ensuring robust performance in branch office environments.
Built to deliver secure connectivity, the CISCO1841-ADSL2 provides integrated services including voice and video, VPN support through IPSec, and built‑in firewall and intrusion prevention features. Its modular capabilities with NIM expansion slots, optimized throughput of approximately 25 Mbps, and design for managed operation make it ideal for small to medium business use cases where performance, redundancy (non-redundant power), and secure, optimized data delivery are paramount.
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CISCO1841-ADSL2 Specifications
Product Type | Enterprise Router |
VPN Support | IPSec |
Power Source | AC Power Supply |
Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing |
Broadband | DSL |
Architecture | Modular |
WAN Configuration | Dual WAN |
WAN Ports | 2 WAN |
LAN Ports | 2 LAN Ports |
Ethernet Technology | 10/100 |
Wi-Fi Standard | N/A |
Connectivity Type | Wired |
Network Protocols | IP, TCP, UDP, ICMP |
Remote Management | Telnet, SSH, SNMP |
Compliance Standards | IEEE 802.3, IEEE 802.3u |
Wireless Support | No |
Speed/Capacity | N/A |
Firewall Features | Yes |
Features | VPN / VoIP / IPv6 Compatible / Firewall |
Use Case | Business |
Management | Managed |
Form Factor | Desktop |
Integrated Services | Voice / Video |
High Availability Support | Not Supported |
Safety | N/A |
EMC | FCC / CE |
Telecom | ITU-T G.992.3 |
Throughput Capacity | 25 Mbps |
QoS Features | Supported |
Built-in Security Features | Firewall / Intrusion Prevention |
Expansion Slots | NIM |
Modular Slots Available | 2 Slots |
Stacking Capability | No |
5G Support | No |
Memory | 128 MB |
Flash Memory | 256 MB |
Interface Ports | RJ-45 |
Power | 65 Watt |
Device Type | Router |
Product Name | CISCO1841-ADSL2 |
Height | N/A |
Width | N/A |
Depth | N/A |
Weight | N/A |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.







Product Comparison Table
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Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
Connectivity Type | Wired | Wired / Ethernet | Wired | Wired | Wired |
Broadband | DSL | Fiber Optic | N/A | Fiber Optic | Fiber Optic |
Power Source | AC Power Supply | AC Power Supply / Redundant | DC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant |
Architecture | Modular | Modular | Modular | Modular | Modular |
WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
WAN Ports | 2 WAN | Modular WAN | 2 WAN | 2 WAN | 2 WAN |
LAN Ports | 2 LAN Ports | Modular LAN | 8 LAN Ports | 4 LAN Ports | 4 LAN Ports |
Ethernet Technology | 10/100 | 10G | 10/100/1000 | 10/100/1000 | 10/100/1000 |
Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
Wireless Support | No | No | No | No | No |
Speed/Capacity | N/A | 10Gb | Gigabit | Gigabit | Gigabit |
Routing Protocols Supported | - | - | - | - | - |
VPN Support | IPSec | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
Firewall Features | Yes | Yes | Yes | Yes | Yes |
Features | VPN / VoIP / IPv6 Compatible / Firewall | VPN, High Throughput, Integrated Services, Redundancy | VPN, Firewall, QoS, High Availability, Intrusion Prevention | VPN, Firewall, IPv6 Compatible | VPN / Firewall / IPv6 Compatible |
Use Case | Business | Enterprise | Enterprise | Enterprise | Enterprise / Business |
Management | Managed | Managed | Managed | Managed | Managed |
Form Factor | Desktop | Chassis | Rack-mount | Rack-mount | Rack-mount |
Integrated Services | Voice / Video | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | VoIP, WAN Optimization | Voice / Video / WAN Optimization |
High Availability Support | Not Supported | Supported | Supported | Supported | Supported |
Throughput Capacity | 25 Mbps | 10Gbps | 2 Gbps | 10 Gbps | 2 Gbps |
QoS Features | Supported | Supported | Supported | Supported | Supported |
Built-in Security Features | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection |
Expansion Slots | NIM | SFP+ | NIM, SFP+ | NIM | NIM |
Modular Slots Available | 2 Slots | 3+ Slots | 2 Slots | 2 Slots | 2 Slots |
Stacking Capability | No | Yes | Yes | Yes | Yes |
5G Support | No | No | No | No | No |
Memory | 128 MB | 4 GB | 4 GB | 4 GB | 4 GB |
Flash Memory | 256 MB | 512 MB | 512 MB | 512 MB | 512 MB |
Interface Ports | RJ-45 | RJ-45, SFP+, Combo Ports | RJ-45, SFP+, Combo Ports | RJ-45, SFP | RJ-45 / SFP |
Device Type | Router | Router | Router | Router | Router |
Product Name | CISCO1841-ADSL2 | 7603S-S32-10G-B-R | MX2020-PREMIUM2-DC | FPC3-PTX-2H-IR Enterprise Router | AR2204-S Enterprise Modular Router |
Height | N/A | N/A | N/A | 1.75 inches | 1.75 inches |
Width | N/A | N/A | N/A | 17 inches | 17.5 inches |
Depth | N/A | N/A | N/A | 18 inches | 15.0 inches |
Weight | N/A | N/A | N/A | 15 lbs | 15 lbs |
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