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CISCO1841-ADSL2-B
1841 bundle,HWIC-ADSL-B/ST,IP BB,64F/256D
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CISCO1841-ADSL2-B is a high-performance, fixed-architecture router designed specifically for branch office connectivity, featuring an integrated ADSL2 modem that supports DSL broadband. It provides versatile power options with an AC power supply and offers a combination of WAN and LAN interfaces to ensure reliable connectivity which is essential for data, voice, and video services.
The router is equipped with integrated security and VPN features, as well as modular expansion capabilities via EHWIC/NIM slots to tailor interfaces for additional services. With robust throughput performance, built-in firewall functions, and support for industry-standard routing protocols, the CISCO1841-ADSL2-B is ideally suited for business-critical applications requiring secure remote access and consistent performance.
CISCO1841-ADSL2-B price is is available on request. Get immediate quote.
Request bulk order quote for CISCO1841-ADSL2-B for additional pricing. Browse the full Router Isr 1800 series or explore all Cisco products.
A finance firm’s remote office deploys the CISCO1841-ADSL2-B-1841 bundle with HWIC-ADSL-B/ST, IP BB bandwidth management and 64F/256D performance class to establish an ADSL2 MPLS VPN with QoS. This configuration ensures encrypted, low-latency communication to HQ, boosting data security and reducing latency by 40%.
A national retailer uses the CISCO1841-ADSL2-B-1841 bundle (HWIC-ADSL-B/ST, IP BB, 64F/256D) to power POS terminals and real-time inventory sync over dedicated ADSL2 lines. The solution delivers consistent throughput, 24/7 availability and prioritized traffic, cutting transaction failures by 30%.
An energy provider integrates the CISCO1841-ADSL2-B-1841 bundle with HWIC-ADSL-B/ST interface, IP BB service and 64F/256D class for remote pump station SCADA data. The setup ensures robust ADSL2 connectivity with QoS-driven low-latency telemetry, improving incident response times by 50% and minimizing downtime.
To get the detailed certification, please go to the Compliance Center.
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | DSL | N/A | DSL | DSL | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention | Firewall | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE | FCC, CE | FCC / CE | IEEE 802.3, 802.3u, 802.3ab | FCC / CE |
| Connectivity Type | Wired / Ethernet | Wired | Wired | Wired | Wired / Wireless / Ethernet |
| Depth | 16.0 inches | N/A | N/A | 13 inches | 11.5 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | FCC Part 15 | N/A | N/A | FCC, CE | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100/1000 | 10/100 |
| Expansion Slots | EHWIC / NIM | EHWIC | HWIC / NIM | NIM, EHWIC | EHWIC |
| Features | VPN / IPv6 Compatible / Firewall | VPN, Voice, Video, IPv6 Compatible, Firewall | VPN / IPv6 Compatible / Firewall | VPN, VoIP, IPv6 Compatible, Firewall, MPLS | VPN / VoIP / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 128 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Desktop | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.7 inches | N/A | N/A | 1.75 inches | 1.7 inches |
| High Availability Support | Not Supported | Supported | Supported | Supported | Not Supported |
| Integrated Services | Voice / Video | Voice, Video | Voice / Video | Voice, Video, WAN Optimization | Voice / Video |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45, Combo Ports | RJ-45 |
| LAN Ports | N/A | 4 LAN Ports | 2 LAN Ports | 4 LAN Ports | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 128 MB | 256 MB | 128 MB | 512 MB | 512 MB |
| Modular Slots Available | 2 Slots | 1 Slot | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IPv4, IPv6 | OSPF / EIGRP / RIP / Static Routing | IP, TCP, UDP, HTTP, SNMP | IPv4, IPv6, TCP/IP, UDP, NAT, PPPoE |
| Power | 60 W | 65 W | 65 Watt | 150W | 65 Watt |
| Power Source | AC Power Supply | AC Power Supply / Redundant | AC Power Supply | AC Power Supply with Redundant Option | AC Power Supply |
| Product Name | Cisco 1841 ADSL2-B Router | C1861-SRST-C-B/K9 | CISCO1841-SHDSL-V3 | Cisco 1802 Integrated Services Router | CISCO1801W-AG-C/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH / SNMP | HTTP, HTTPS, SSH, Telnet | Telnet / SSH | Telnet, SSH, SNMP, HTTPS | CLI, SNMP, HTTP, HTTPS |
| Routing Protocols | OSPF / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | UL Listed | N/A | N/A | UL, CE | N/A |
| Speed/Capacity | N/A | N/A | N/A | Gigabit | N/A |
| Stacking Capability | No | No | No | Yes | No |
| Telecom | N/A | N/A | N/A | ETSI | N/A |
| Throughput Capacity | 0.025 Gbps | 0.02 Gbps | 0.03 Gbps | 1 Gbps | 0.075 Gbps |
| Use Case | Business | Enterprise, Small Business | Enterprise | Enterprise / Business | Enterprise / Business |
| VPN Support | IPSec / SSL VPN | IPSec VPN / N/A | IPSec | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN |
| WAN Configuration | WAN | WAN | WAN | Dual WAN | WAN |
| WAN Ports | 1 WAN | 1 WAN | 1 WAN | 2 WAN | 1 WAN |
| Weight | 13 lbs | N/A | N/A | 15 lbs | 9.3 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | WiFi 4 |
| Width | 19.0 inches | N/A | N/A | 17 inches | 17.2 inches |
| Wireless Support | No | No | No | No | Yes |
Reliable 1841 ADSL2 router with HWIC-ADSL-B. Provides stable connectivity for small office networks.
Cisco 1841-ADSL2-B ensures smooth performance and consistent uptime. Easy to configure and manage.
Handles daily traffic efficiently with stable ADSL connectivity. Ideal for branch offices.
Durable and dependable router. Cisco quality ensures secure and predictable network operations.
Reliable ADSL solution with Cisco modular design. Easy to upgrade and maintain over time.
The Cisco 1841 ADSL2-B bundle combines a Cisco 1841 Integrated Services Router with a HWIC-ADSL-B/ST module, delivering ADSL2 IP broadband, integrated security, and advanced routing for small branches.
It supports ADSL2 and ADSL2+ on the HWIC-ADSL-B/ST module, enabling downstream speeds up to 24 Mbps and upstream speeds up to 3.5 Mbps over existing copper infrastructure.
The Cisco 1841 delivers up to 85 Mbps forwarding performance, supports 64 000 Fast NAT sessions and 256 000 Delayed NAT sessions for reliable branch connectivity.
The bundle includes the Cisco 1841 chassis, AC power supply, one HWIC-ADSL-B/ST module, 128 MB DRAM, 16 MB Flash and mounting brackets.