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C1841-T1SEC-V2/K9
1841 Security Bundle w/ HWIC-1DSU-T1, Adv.Sec.,64FL,256DR
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C1841-T1SEC-V2/K9 is a fixed enterprise router that delivers robust integrated services with high-performance routing, VPN capabilities, and built-in security features. Engineered with modular expansion in mind, it supports EHWIC slots for additional WAN interfaces and integrated voice and data services while offering advanced encryption and firewall functions for secure communications.
C1841-T1SEC-V2/K9 features versatile power options with an AC power supply, integrated 10/100 Ethernet interfaces for LAN connectivity, and a modular WAN configuration to support T1 connectivity. Designed to provide reliable throughput, redundancy and quality of service for enterprise use cases, it efficiently handles routing protocols and remote management via Telnet, SSH, and SNMP without unnecessary filler.
C1841-T1SEC-V2/K9 price is is available on request. Get immediate quote.
Request bulk order quote for C1841-T1SEC-V2/K9 for additional pricing. Browse the full Router Isr 1800 series or explore all Cisco products.
In a distributed enterprise, IT deploys the C1841-T1SEC-V2/K9-1841 Security Bundle w/ HWIC-1DSU-T1, Adv.Sec.,64FL,256DR to establish dual T1 WAN links with hardware-accelerated IPsec encryption and stateful firewall. Leveraging the Advanced Security license for IPS, VPN and application control, the solution delivers 64 Mbps firewall throughput and real-time threat protection. Benefit: Achieves 99.99% uptime, enforces consistent security policies across branches, and reduces operational risk.
A retail chain integrates the Cisco C1841-T1SEC-V2/K9-1841 Security Bundle w/ HWIC-1DSU-T1 to isolate and secure point-of-sale traffic over T1 lines. With 256 MB DRAM and Advanced Security features (stateful firewall, TLS inspection, intrusion prevention), sensitive cardholder data is encrypted end-to-end. Benefit: Ensures PCI DSS compliance, minimizes fraud risk, and accelerates transactions with low-latency 64 Mbps throughput.
In a utility control center, engineers deploy the C1841-T1SEC-V2/K9-1841 Security Bundle to provide robust T1 connectivity between SCADA sites. The HWIC-1DSU-T1 module ensures reliable serial link performance, while the Advanced Security license delivers deep packet inspection and anomaly detection. Benefit: Protects mission-critical control systems from cyber threats, minimizes downtime, and maintains regulatory compliance for industrial operations.
To get the detailed certification, please go to the Compliance Center.
| C1841-T1SEC-V2/K9 |  CISCO1801WM-AGB/K9 |  C1841-3G-S-SEC/K9 |  CISCO1803/K9 |  C1861-2B-VSEC/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | 3G | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / IPSec VPN | Firewall / Intrusion Prevention | Firewall | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC, CE, UL | FCC / CE | FCC / CE / UL | FCC / CE | FCC, CE |
| Connectivity Type | Wired | Wired / Wireless | Wired | Wired | Wired |
| Depth | N/A | N/A | N/A | N/A | 14 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | NIM |
| Features | VPN / VoIP / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall / Voice | VPN, Firewall, IPv6 Compatible, Voice, Video |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 256 MB | 128 MB | 128 MB | 128 MB |
| Form Factor | Rack-mount | Desktop | Desktop | Rack-mount | Desktop |
| Height | N/A | N/A | N/A | 1.75 inches | 1.75 inches |
| High Availability Support | Supported | Not Supported | Not Supported | Not Supported | Supported |
| Integrated Services | Voice / Data / Security | Voice / Video | Voice | Voice / Video | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 / Combo Ports | RJ-45 | RJ-45 | RJ-45, SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 2 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 512 MB | 512 MB | 256 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | TCP/IP | IPv4 / IPv6 | IPv4 / IPv6 | TCP/IP / IPX | IP, VoIP |
| Power | 38 W | 65 Watt | 45 W | 65 Watts | 85 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1841 Integrated Services Router - T1SEC | CISCO1801WM-AGB/K9 | Cisco C1841-3G-S-SEC/K9 Integrated Services Router | Cisco 1803/K9 Integrated Services Router | Cisco C1861-2B-VSEC/K9 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH / SNMP | Telnet / SSH / SNMP | SSH / Telnet / SNMP | CLI / SNMP | SSH, Telnet, SNMP |
| Routing Protocols | RIP / OSPF / EIGRP / BGP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | N/A | Gigabit | N/A | Fast Ethernet | Fast Ethernet |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.033 Gbps | 0.05 Gbps | 0.035 | 25 Mbps | 15 Mbps |
| Use Case | Enterprise | Enterprise | Enterprise | Small Business / Enterprise | Business |
| VPN Support | IPSec / SSL VPN | IPSec | IPSec VPN | IPSec / GRE / DMVPN | IPSec / SSL VPN |
| WAN Configuration | WAN | Dual WAN | WAN | Dual WAN | Dual WAN |
| WAN Ports | Modular WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | N/A | N/A | N/A | 6.6 lbs | 10 lbs |
| Wi-Fi Standard | N/A | WiFi 3 | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | 17 inches | 17 inches |
| Wireless Support | No | Yes | No | No | No |
Security-focused T1 router with HWIC-1DSU-T1. Provides reliable performance and advanced protection for branch networks.
Cisco 1841-T1SEC-V2 ensures secure and stable T1 connectivity. Easy deployment and consistent uptime.
Handles business traffic efficiently with robust security features. Ideal for enterprise branch offices.
Strong T1 routing with Cisco reliability. Maintains secure and uninterrupted WAN connections.
Easy configuration and dependable performance. Perfect for small office T1 deployments.
The C1841-T1SEC-V2/K9 bundle includes a Cisco 1841 ISR, an HWIC-1DSU-T1 module, the Advanced Security feature set, 64 MB of flash, and 256 MB of DRAM.
It delivers Cisco IOS Firewall, Intrusion Prevention System (IPS), Zone-Based Firewall, and advanced VPN encryption for comprehensive perimeter defense.
Yes. The included HWIC-1DSU-T1 interface module enables native T1/DS1 connectivity for voice, video, and data services.
It delivers up to 85 Mbps aggregate throughput and supports up to 30,000 concurrent sessions, ideal for small to medium branch deployments.
The router ships with 256 MB of DRAM and 64 MB of onboard flash, expandable to 512 MB DRAM and 128 MB flash for future growth.
Absolutely. Its integrated security, WAN connectivity, and performance profile make it ideal for SMB and branch office networks.
Yes. The bundle supports site-to-site and remote-access VPN with AES, 3DES, and ISAKMP/IKE for secure connectivity.
It supports advanced QoS features including Bandwidth Limiting, Class-Based Weighted Fair Queuing (CBWFQ), and Low-Latency Queuing (LLQ).
The Advanced Security feature set is licensed per router and delivered as a one-time IOS software activation, with optional Smart Licensing for ease of management.
Yes. The Cisco 1841 provides two HWIC slots and a single WIC slot, allowing you to add WAN, voice, or security modules as needed.
The bundle includes an external 110–240 VAC power adapter and rack-mount brackets for 19-inch installations.
Yes. You can purchase Cisco SmartNet service for 24×7 hardware replacement, software updates, and technical assistance.
It ships with Cisco IOS Software Release 12.4T, upgradeable to support later feature sets and security enhancements.
Yes. The router supports full IPv6 routing, features, and transition mechanisms alongside IPv4.
Use IOS CLI commands under interface serial 0/0/0, set the framing (e.g., framing t1), line coding (e.g., ami), and clock source per your carrier.
Typical use cases include secure branch office connectivity, remote workforce VPN access, and perimeter firewall services for SMBs.
You can buy it through Cisco’s authorized reseller network or via online distributors; contact a Cisco partner for pricing and lead times.