CISCO1921-T1SEC/K9, Cisco 1900 Series Router, T1 HWIC/256MB Flash 512MB DRAM/SEC License

  • Brand: Cisco
  • Model: CISCO1921-T1SEC/K9
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Rating:
92%
4.6/5.0
List Price: $2,295.00
47% OFF
$1,208.00
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    Overview
    End-of-Life Notice
    End-of-Life Notice
    CISCO1921-T1SEC/K9 is officially EOL. Service support ends on 2023-09-30.
    For full lifecycle details, see CISCO1921-T1SEC/K9 EOL.
    Recommended Replacement
    Recommended Replacement
    Official replacement model. Aligned with current deployment environments.

    Cisco CISCO1921-T1SEC/K9 Overview

    The Cisco CISCO1921-T1SEC/K9 is a compact, enterprise-class router designed for secure branch connectivity. With integrated DSU/CSU for T-1 access, wired Ethernet, Fast Ethernet, and Gigabit Ethernet interfaces, it fits perfectly into space-constrained racks with its external, modular 1U form factor. Equipped with 512 MB RAM, 256 MB flash memory, and Cisco IOS Security, this router supports advanced routing protocols, VPN, firewall protection, QoS, MPLS, and IPv6 for reliable WAN access across Asia, Europe, Africa, and North America.

    Product Highlights

    1.544 Mbps
    T1 Access
    512 MB
    Router RAM
    2 GE
    LAN Ports

    Product Applications Scenarios

    Enterprise Network
    Ideal as a secure branch router, it aggregates T1 WAN links, enforces QoS, and supports advanced routing to keep enterprise applications responsive and always available.
    Service Providers
    Used as CPE for managed WAN services, combining DSU/CSU, VPN, and MPLS features to simplify deployments and reduce on-site hardware complexity for operators.
    Public Infrastructure
    Provides reliable, hardened routing for government, utilities, and transport networks, with secure IPSec tunnels and IPv6 support for long-term infrastructure projects.

    Product Features Comparison

      Cisco Cisco Cisco Cisco
    Model CISCO1921-T1SEC/K9, Cisco 1921 Router, HWIC-1DSU-T1/256MB Flash/SEC License ASR1K6R2-100-VPNK9, Cisco ASR 1000 Router, 100G throughput/AES encryption/VPN license ASR1004-20G-HA/K9, Cisco ASR 1000 Router, 20Gbps throughput/High Availability/Dual PSU CISCO2921-V/K9, Cisco 2921 Voice Router, PVDM3-32/UC License/Voice Bundle
    Brand Cisco Cisco Cisco Cisco
    Routing Throughput n/a 100 Gbps Bandwidth: 20 Gbps n/a
    Interface Configuration 2 x network, Ethernet 10Base-T/100Base-TX/1000Base-T, RJ-45; 1 x serial, console; 1 x management, console, mini-USB Type B; 1 x serial, auxiliary; 1 x Hi-Speed USB, 4-pin USB Type A; 1 x m Supports SIP40 Management: 1 x 10Base-T/100Base-TX (RJ-45); Management: 1 x console (RJ-45); Management: 1 x auxiliary (RJ-45); USB: 1 x n/a
    Supported Protocol OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing n/a L2TP, IPSec OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing
    VPN Capability L2TP, IPSec Integrated VPN services L2TP, IPSec IPsec
    Integrated Features Firewall protection, VPN support, MPLS support, VLAN support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Quality of Service (QoS) ESP-100G, RP2, SIP40, AESK9, License Firewall protection, NAT support, VPN support, MPLS support, IPv6 support, Stateful Switchover (SSO), Access Control List (ACL) support, Quality of Service (QoS), MPLS VPN, software redundancy MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED)

    Optional Add-ons

    Model Number Description
    HWIC-1DSU-T1 Cisco T1 DSU/CSU HWIC module for Cisco 1900 Series routers
    MGBLX1 Cisco Gigabit LX SFP transceiver for fiber uplinks on compatible routers
    PWR-1900-AC Cisco AC power supply designed for Cisco 1900 Series branch routers

    Quality Certifications

    • ISO 14001
    • ISO 9001
    • RoHS
    • REACH
    • CE
    • FCC
    Specification

    Cisco CISCO1921-T1SEC/K9 Specification

    Model
    CISCO1921-T1SEC/K9
    Brand
    Cisco
    Device Type
    Router
    Form Factor
    External, modular, 1U
    Width
    13.5 in
    Depth
    11.5 in
    Height
    1.7 in
    RAM
    512 MB (installed) / 512 MB (max)
    Flash Memory
    256 MB (installed) / 256 MB (max)
    Connectivity Technology
    Wired
    Line Rate
    T-1
    Line Coding Format
    AMI, B8ZS
    Data Link Protocol
    Ethernet, Fast Ethernet, Gigabit Ethernet
    Network / Transport Protocol
    L2TP, IPSec
    Routing Protocol
    OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing
    Remote Management Protocol
    SNMP, RMON
    Features
    Firewall protection, VPN support, MPLS support, VLAN support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Quality of Service (QoS)
    Networking Compliant Standards
    IEEE 802.3ah, IEEE 802.1ag
    Communications Type
    DSU/CSU
    Protocols & Specifications
    HDLC
    Max Transfer Rate
    1.544 Mbps
    Expansion Slots Total (Free)
    2 (1) x EHWIC
    Interfaces
    2 x network, Ethernet 10Base-T/100Base-TX/1000Base-T, RJ-45; 1 x serial, console; 1 x management, console, mini-USB Type B; 1 x serial, auxiliary; 1 x Hi-Speed USB, 4-pin USB Type A; 1 x m
    Miscellaneous Compliant Standards
    VCCI, CISPR 22 Class A, CISPR 24, EN55024, EN55022 Class A, EN50082-1, AS/NZS 60950-1, ICES-003 Class A, CS-03, FCC CFR47 Part 15, EN300-386, UL 60950-1, IEC 60950-1, EN 60950-1, CSA C22.2 No. 60950-1
    Power Device
    Power supply, internal
    Voltage Required
    AC 120/230 V (50/60 Hz)
    OS Provided
    Cisco IOS Security
    Min Operating Temperature
    32 °F
    Max Operating Temperature
    104 °F
    Humidity Range Operating
    10–85%
    Weight (original spec)
    11.9 lbs
    Weight
    kg

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    Quality Certifications

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    Q&A

    Questions & Answers

    How does the CISCO1921-T1SEC/K9 compare to other Cisco 1900 ISR series routers?

    The CISCO1921-T1SEC/K9 offers a balanced mix of performance and security, whereas other models may provide higher performance or additional features.

    What are some common troubleshooting steps for the CISCO1921-T1SEC/K9?

    Common troubleshooting includes verifying power connections, checking WAN/LAN cable connections, and ensuring firmware is up-to-date.

    What is included in the CISCO1921-T1SEC/K9 security license?

    The security license on the CISCO1921-T1SEC/K9 provides advanced threat protection, VPN support, and secure communication features.

    Is router-switch.com a reliable distributor?

    Absolutely. As a multi-brand authorized distributor, router-switch.com is directly certified by leading technology manufacturers. We guarantee 100% genuine products, competitive pricing, and full manufacturer warranties and support.

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