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Part Number: C1121-4PLTEP
Description: Cisco Systems ISR 1100 4P Dual Ge SFP Router Pluggable – 2 x Antenna(2 x External) – 4 x Network Port – 1 x Broadband Port – USB – PoE Ports – Gigabit Ethernet – Rack-mountable PLUGGABLE SMS/GPS
Category: Cisco Router ISR 1100 Series, Cisco Routers, Routers
and more
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
Terms & Conditions*
The Cisco C1121-4PLTEP delivers comprehensive connectivity through integrated LTE uplink connectivity options and a dedicated gigabit ethernet WAN port for maximum network resilience. This high performance device supports remote LTE diagnostics capabilities, enabling administrators to monitor and troubleshoot cellular connections remotely through traditional Cisco IOS XE management interfaces. The dual connectivity architecture ensures business continuity by providing automatic failover between wired and wireless WAN connections, while the pluggable SMS GPS module enables location-based services and enhanced mobile device management for field deployments requiring steadily expanding network capacity.
Built with advanced Wi-Fi radio capabilities, the C1121-4PLTEP functions as both a router and access point, supporting up to 50 capable clients simultaneously through sophisticated MU-MIMO mode operation. The platform incorporates multiple input multiple output antenna technology with two spatial streams, delivering superior client experience compared to competing access points that rely on single user MIMO architectures. Wi-Fi protected access security protocols ensure robust wireless network protection, while the mobility express solution eliminates the need for separate physical controller deployments, reducing complexity and operational costs for medium sized deployments.
The ISR 1100 4P dual GE SFP router configuration provides exceptional connectivity flexibility with four fast ethernet LAN ports supporting inline PoE functionality for powering IP phones and external wireless access points. The 4P dual GE SFP architecture enables high-speed fiber connectivity options, while the serial WAN interface provides legacy device integration capabilities. Additional connectivity includes micro USB port for console access, USB flash memory support for configuration storage, and USB device connectivity for enhanced functionality, making this platform ideal for organizations requiring diverse connectivity options within a single integrated services platform.
Operating on Cisco IOS XE software platform, the C1121-4PLTEP incorporates integrated security features including intrusion prevention capabilities and comprehensive RADIUS AAA authentication for both wired and wireless clients. The platform supports seamless integration with AireOS wireless controllers for centralized management while maintaining local mobility express release functionality for standalone deployments. Advanced monitoring tools provide real-time visibility into associated wireless clients, network performance metrics, and LTE models connectivity status, enabling proactive network management and optimization for diverse business requirements.
| Component | Specification |
| Model | C1121-4PLTEP |
| LAN Ports | 4 fast ethernet LAN ports with inline PoE |
| WAN Connectivity | 1 gigabit ethernet WAN port + LTE |
| Fiber Ports | Dual GE SFP router configuration |
| Console Access | Micro USB console port |
| Wireless Standard | 802.11ac with MU-MIMO mode |
| Maximum Clients | 50 capable clients simultaneously |
| Power Supply | External adapter with standard safety certifications |
The C1121-4PLTEP features compact physical dimensions optimized for desktop or wall-mount installation, with the package includes rubber feet models for stable desktop placement. The device operates across standard input voltage ranges with comprehensive environmental specifications including specified operating altitude limits for diverse deployment scenarios. Standard safety certifications ensure compliance with international requirements, while the robust design supports both indoor and protected outdoor installations suitable for various business environments.
The integrated Wi-Fi radio delivers high-performance wireless connectivity through advanced antenna design supporting two spatial streams and MU-MIMO technology for enhanced throughput to multiple devices. Unlike traditional SU-MIMO implementations that serve only one client at a time, the MU-MIMO mode enables simultaneous data transmission to multiple wireless clients, significantly improving overall network capacity and client experience. The platform supports comprehensive WLAN interface management and can function with or without external AireOS wireless controllers depending on deployment requirements.
Running traditional Cisco IOS XE software, the C1121-4PLTEP provides enterprise-grade routing, security, and wireless management capabilities through a unified operating system. The platform supports network clock synchronization, advanced Quality of Service features, and comprehensive monitoring tools for both LTE and ethernet connectivity. Management capabilities include support for centralized wireless controller integration, local mobility express solution deployment, and remote management through various interfaces including micro USB console access and web-based administration tools.
The integrated LTE functionality provides primary or backup WAN connectivity with comprehensive remote LTE diagnostics support for proactive network monitoring. The platform supports various LTE models configurations depending on regional requirements and carrier compatibility, with pluggable SMS GPS capabilities for location-based services. Advanced cellular management features enable automatic failover, load balancing, and detailed usage monitoring to help organizations purchase network capacity efficiently while maintaining optimal connectivity performance.
The integrated access point functionality eliminates the need for separate wireless infrastructure while providing enterprise-grade Wi-Fi capabilities. The system supports Wi-Fi protected access security protocols, guest network isolation, and comprehensive wireless client management for up to 50 concurrent users. The mobility express solution provides local wireless controller functionality, reducing dependence on external physical controller deployments while maintaining centralized management capabilities when integrated with existing AireOS wireless controllers.
Designed for easy setup and rapid deployment, the C1121-4PLTEP supports various installation scenarios from small office environments to distributed enterprise locations. The platform integrates seamlessly with existing Cisco network infrastructure while providing standalone operation capabilities for remote sites. USB flash memory support enables configuration backup and restoration, while the comprehensive port configuration accommodates diverse connectivity requirements including legacy serial devices, modern ethernet equipment, and external wireless access points for expanded coverage.
Yes, the C1121-4PLTEP incorporates mobility express solution functionality that enables it to serve as both a wireless access point and local controller for small to medium sized deployments. The platform can manage its own wireless functions while also coordinating with external wireless access points to create a unified wireless network. This dual functionality eliminates the need for separate physical controller hardware while maintaining compatibility with existing AireOS wireless controllers for larger enterprise deployments.
The C1121-4PLTEP supports up to 50 capable clients simultaneously through its advanced MU-MIMO mode implementation, which enables concurrent data transmission to multiple wireless clients rather than serving only one client at a time like traditional SU-MIMO systems. The actual client experience depends on network utilization patterns and application requirements, but the MU-MIMO technology with two spatial streams ensures optimal performance distribution across all associated wireless clients. Organizations requiring more capacity can deploy additional external wireless access points managed by the integrated mobility express solution.
The C1121-4PLTEP includes integrated LTE functionality as a standard feature, providing cellular WAN connectivity alongside the traditional gigabit ethernet WAN port for dual WAN resilience. LTE models include comprehensive remote LTE diagnostics capabilities, SMS functionality, and optional GPS services through the pluggable SMS GPS module. Non LTE models would rely solely on the ethernet WAN connection, making the LTE-enabled version ideal for locations where cellular backup or primary connectivity is essential for business continuity.
The four fast ethernet LAN ports provide inline PoE capability to power connected devices such as IP phones, security cameras, and external wireless access points without requiring separate power adapters. The PoE functionality automatically detects device power requirements and provides appropriate power levels while maintaining data connectivity through the same ethernet cable. This feature simplifies installations and reduces cable complexity, particularly valuable for deployments where AC power access is limited or where clean installations are required.
The Cisco IOS XE platform provides comprehensive monitoring tools including real-time visibility into LTE signal strength, data usage, connection status, and remote LTE diagnostics capabilities. Network administrators can monitor associated wireless clients, track bandwidth utilization across both wired and wireless interfaces, and access detailed performance metrics through web-based management interfaces or command-line tools. The platform also supports SNMP monitoring integration with existing network management systems, enabling centralized monitoring of multiple deployed units across distributed locations.
At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.
For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.
Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.
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