C1921-4SHDSL/K9 - Cisco 1921 Series Integrated Services Routers Overview
C1921-4SHDSL/K9 - Cisco 1921 Series Integrated Services Routers is a genuine edge and wide-area routing product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco 1921 Series family, the C1921-4SHDSL/K9 unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
This unit follows the original factory specification for the Cisco 1921 Series family, covering its intended role without compatibility surprises. Standard mounting, cabling and management practices apply, and it interoperates with surrounding hardware using the same procedures as other Cisco equipment already deployed in the network.
Typical deployments include branch and campus WAN connectivity, service-provider edge and MPLS deployments, and secure remote-site interconnect. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “Cisco 1921 4-pair SHDSL Bundle, includes HWIC-4SHDSL, IP Base License, designed for high-speed connections.”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the C1921-4SHDSL/K9. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise WAN
Branch and campus routing with advanced services.
Service Provider
Edge routing for ISP and MPLS deployments.
Data Center
Interconnect core and aggregation layers reliably.
Buying a Pre-Owned C1921-4SHDSL/K9
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
C1921-4SHDSL/K9 Specifications | |
| Type | Cisco 1921 Router 4-pair SHDSL Bundle, HWIC-4SHDSL, IP Base Lic |
Enclosure Type: | Desktop, modular, 1U |
Connectivity Technology: | Wired |
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, policy-based routing (PBR) |
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) |
Compliant Standards: | IEEE 802.1Q, IEEE 802.3ah, IEEE 802.1ag |
RAM: | 512 MB (installed) / 512 MB (max) |
Flash Memory: | 256 MB (installed) / 256 MB (max) |
| Type: | DSL modem |
Digital Signaling Protocol: | ADSL, ADSL2, ADSL2+ |
Protocols & Specifications: | ITU G.992.1 (G.DMT), ITU G.992.3 (G.DMT.bis), ITU G.992.5 |
Max Transfer Rate: | 24 Mbps |
| Interfaces: | 2 x 10Base-T/100Base-TX/1000Base-T, RJ-45, Serial : 1 x console , Management : 1 x console, mini-USB Type B , Serial : 1 x auxiliary , Hi-Speed USB : 1 x 4 pin USB Type A , WAN : 1 x ADSL2+, RJ-11 |
Expansion Slot(s): | 2 (total) / 1 (free) x EHWIC |
| Power Device: | Power supply, internal |
Voltage Required: | AC 120/230 V ( 50/60 Hz ) |
| Width: | 13.5 in |
Depth: | 11.5 in |
Height: | 1.7 in |
| Min Operating Temperature: | 32 °F |
Max Operating Temperature: | 104 °F |
Humidity Range Operating: | 10, 85% |
