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C1121-4PLTEP

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ISR 1100 4P DUAL GE SFP RTR PLUGGABLE SMS/GPS
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C1121-4PLTEP

ISR 1100 4P DUAL GE SFP RTR PLUGGABLE SMS/GPS

$1,268.00 $764.0039.7% off

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C1121-4PLTEP Overview

C1121-4PLTEP is a high-performance enterprise router built on a fixed architecture that integrates robust LTE connectivity with advanced routing and VPN capabilities. Designed for mission-critical operations, it delivers multiple service integrations including secure voice, video, and WAN optimization services while offering built-in firewall protection and IPv6 compatibility.

C1121-4PLTEP provides versatile power options with support for both AC and DC power supplies and features 4 WAN ports alongside 4 LAN ports using 10/100/1000 Ethernet technology. Its integrated services, modular design elements, high availability features, and flexible VPN support ensure optimal throughput, redundancy, and performance for enterprise use cases and branch deployments.

C1121-4PLTEP price is $764.00, a 39.7% saving from the Cisco list price of $1,268.00. C1121-4PLTEP is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for C1121-4PLTEP for additional pricing. Browse the full Router Isr 1100 series or explore all Cisco products.

C1121-4PLTEP Specifications

Ethernet Technology
10/100/1000
Form Factor
Desktop
Weight
N/A
Height
N/A
Depth
N/A
Width
N/A
Flash Memory
512 MB
Product Type
Enterprise Router
Architecture
Fixed
Wi-Fi Standard
N/A
Connectivity Type
Wired
Wireless Support
No
Firewall Features
Yes
Features
VPN, IPv6 Compatible, Firewall
Management
Managed
Safety
N/A
EMC
N/A
Telecom
N/A
QoS Features
Supported
Stacking Capability
No
5G Support
No
Device Type
Router
WAN Configuration
WAN
Network Protocols
IPv4, IPv6
Integrated Services
Voice, Video, WAN Optimization
High Availability Support
Supported
VPN Support
IPSec / SSL VPN
Use Case
Enterprise
LAN Ports
4 LAN Ports
Compliance Standards
FCC, CE, RoHS
Built-in Security Features
Firewall, Intrusion Prevention, Malware Protection
Power Source
AC Power Supply / DC Power Supply
Speed/Capacity
Gigabit
Modular Slots Available
N/A
Throughput Capacity
1 Gbps
Interface Ports
RJ-45, SFP
Routing Protocols
OSPF / BGP / EIGRP / Static Routing
WAN Ports
4 WAN
Expansion Slots
N/A
Memory
2 GB
Power
60 Watt
Remote Management
SSH, HTTPS, SNMP
Broadband
4G LTE
Product Name
Cisco C1121-4PLTEP Integrated Services Router

C1121-4PLTEP Use Case

Real-Time Fleet Telematics and Asset Tracking

In a national logistics operation, the C1121-4PLTEP-ISR 1100 4P DUAL GE SFP RTR PLUGGABLE SMS/GPS connects vehicle CAN-bus sensors, in-cabin cameras (via GE SFP uplinks) and GPS receivers to a central fleet-management platform. If a truck deviates from its route or experiences a mechanical fault, the router issues instant SMS alerts and transmits location and diagnostic data over LTE. Benefit: Achieves 24/7 visibility, accelerates incident response by 30%, and reduces fleet operating costs through proactive maintenance.

Secure Retail POS Connectivity with LTE Failover and SMS Alarms

A multi-store retailer uses fiber-backed dual GE SFP links for payment terminals and in-store Wi-Fi. By deploying the C1121-4PLTEP-ISR 1100 4P DUAL GE SFP RTR PLUGGABLE SMS/GPS as an LTE backup, each site automatically fails over on primary network loss. The integrated SMS engine notifies IT teams of connectivity events, while GPS logs store location. Benefit: Delivers 99.99% POS transaction uptime, prevents revenue loss during outages, and simplifies PCI DSS compliance with end-to-end encryption and audit-ready logs.

Resilient Industrial IoT and SCADA Edge Connectivity

In a remote oil & gas pipeline SCADA deployment, the C1121-4PLTEP-ISR 1100 4P DUAL GE SFP RTR PLUGGABLE SMS/GPS aggregates four RTU LAN segments, interfaces with fiber-optic GE SFP backhaul, and uses GPS time-sync for event logging. On threshold breaches, it sends SMS alarms to control-room operators and switches traffic to LTE without human intervention. Benefit: Ensures continuous telemetry, reduces site-visit maintenance by 40%, and enhances operational safety through always-on, low-latency edge connectivity.

Quality Certifications

To get the detailed certification, please go to the Compliance Center.

ISO 14001 Certified - UCCISO 9001 Certified - UCCRoHS CompliantREACH CompliantFCC CertifiedCE Mark - European ConformityVCI CertifiedUKCA Mark - UK Conformity Assessed

Product Comparison Table

ISR 1100 4P DUAL GE SFP RTR PLUGGABLE SMS/GPSC1121-4PLTEPISR 1100 DSL Annex A w/ LTE Adv SMS/GPS 802.11ac -E WiFiC1117-4PLTEEAWEISR 1100 DSL Annex B/J w/ LTE Adv SMS/GPS 802.11ac -E WiFiC1116-4PLTEEAWEISR 1100 G.FAST GE SFP Ethernet Router w/ 802.11ac -E WiFiC1112-8PWE1117 (A&M) VDSL2/ADSL2+ Firmware for Multimode DSL productsFW-VA-1117-39T
5G SupportNoNoNoNoNo
ArchitectureFixedModularFixedModularFixed
Broadband4G LTELTELTEFiber Optic / DSL / LTEFiber Optic
Built-in Security FeaturesFirewall, Intrusion Prevention, Malware ProtectionFirewall / Intrusion Prevention / Malware ProtectionFirewall / Intrusion Prevention / Malware ProtectionFirewall, Intrusion Prevention, Malware ProtectionFirewall, Intrusion Prevention
Compliance StandardsFCC, CE, RoHSCE, FCC, RoHSFCC, CE, RoHSFCC, CE, RoHSFCC, CE, RoHS
Connectivity TypeWiredEthernetWiredWiredWired
DepthN/AN/A14 inches14 inches15 inches
Device TypeRouterRouterRouterRouterRouter
EMCN/AN/AN/AFCC Part15, CISPR22N/A
Ethernet Technology10/100/100010/100/100010/100/100010/100/100010/100/1000
Expansion SlotsN/ASFP+SFP+N/ASFP+
FeaturesVPN, IPv6 Compatible, FirewallVPN / IPv6 Compatible / FirewallVPN, IPv6 Compatible, FirewallVPN, Firewall, IPv6, QoSVPN, Firewall, Intrusion Prevention, IPv6 Compatible
Firewall FeaturesYesYesYesYesYes
Flash Memory512 MB256 MB512 MB256 MB512 MB
Form FactorDesktopRack-mountRack-mountRack-mountRack-mount
HeightN/AN/A2 inches1.75 inches1.75 inches
High Availability SupportSupportedSupportedSupportedSupportedSupported
Integrated ServicesVoice, Video, WAN OptimizationVoice / WAN OptimizationVoice / Video / WAN OptimizationVoice, VideoWAN Optimization
Interface PortsRJ-45, SFPRJ-45, SFPRJ-45 / SFP+RJ-45, SFPRJ-45, SFP
LAN Ports4 LAN Ports4 LAN Ports8 LAN Ports8 LAN Ports8 LAN Ports
ManagementManagedManagedManagedManagedManaged
Memory2 GB1 GB1 GB512 MB4 GB
Modular Slots AvailableN/A2 SlotsN/AN/AN/A
Network ProtocolsIPv4, IPv6IPv4, IPv6IPv4, IPv6IPv4, IPv6, MPLSIPv4, IPv6
Power60 Watt48 Watt65 Watts65 Watt120 W
Power SourceAC Power Supply / DC Power SupplyAC Power Supply / DC Power Supply / RedundantAC Power Supply / DC Power Supply / RedundantAC Power Supply with Redundant DC OptionAC Power Supply
Product NameCisco C1121-4PLTEP Integrated Services RouterC1117-4PLTEEAWEC1116-4PLTEEAWEC1112-8PWEFW-VA-1117-39T Secure Gateway
Product TypeEnterprise RouterEnterprise RouterEnterprise RouterEnterprise RouterEnterprise Router
QoS FeaturesSupportedSupportedSupportedSupportedSupported
Remote ManagementSSH, HTTPS, SNMPHTTPS / SSH / SNMPSSH, HTTPS, SNMPSSH, HTTPS, SNMPHTTP, HTTPS, SSH, Telnet
Routing ProtocolsOSPF / BGP / EIGRP / Static RoutingOSPF / BGP / Static RoutingOSPF / BGP / EIGRP / Static RoutingOSPF / BGP / EIGRP / Static RoutingOSPF / BGP / Static Routing
SafetyN/AN/AN/AIEC/UL CertifiedN/A
Speed/CapacityGigabitGigabitGigabitGigabitGigabit
Stacking CapabilityNoYesNoNoNo
TelecomN/AN/AN/AN/AN/A
Throughput Capacity1 Gbps1 Gbps1 Gbps1 Gbps1 Gbps
Use CaseEnterpriseEnterpriseEnterpriseEnterpriseEnterprise
VPN SupportIPSec / SSL VPNIPSec / SSL VPNIPSec / SSL VPN / GREIPSec / SSL VPNIPSec / SSL VPN
WAN ConfigurationWANDual WANDual WANDual WANDual WAN
WAN Ports4 WAN1 WAN4 WAN2 WAN4 WAN
WeightN/AN/A10 lbs7 lbs12 lbs
Wi-Fi StandardN/AN/AN/AN/AN/A
WidthN/AN/A17 inches17.5 inches17 inches
Wireless SupportNoNoNoNoNo

Reviews & Ratings

J
Jonathan Meyers
5

Pluggable LTE made deployment flexible. WAN performance remained stable.

C
Caleb Turner
4

Reliable routing with smooth LTE failover during outages.

M
Marcus Fielding
5

Cisco ISR handled WAN traffic efficiently with good resilience.

A
Aaron Mitchell
3

Strong choice for branches needing LTE redundancy.

D
Dylan Porter
4

Consistent uptime and easy remote management.

Questions & Answers

What is the Cisco ISR 1100 4P Dual GE SFP Router (SKU C1121-4PLTEP)?

The Cisco ISR 1100 4P Dual GE SFP Router (SKU C1121-4PLTEP) is a branch router featuring four Power over Ethernet (PoE+) ports, two Gigabit Ethernet SFP uplinks, pluggable LTE, SMS/GPS support, and Cisco IOS XE software.

What does ‘4P’ stand for in C1121-4PLTEP?

‘4P’ indicates four integrated PoE+ ports that deliver up to 30 W per port for powering IP phones, cameras, or wireless access points directly from the router.

What are the Dual GE SFP ports used for?

The two Gigabit Ethernet SFP ports provide fiber uplink versatility for high-speed, long-distance connectivity in enterprise and branch environments.

Can I install an LTE modem in this router?

Yes. The C1121-4PLTEP supports a pluggable LTE cellular modem for seamless 4G/5G WAN failover and primary connectivity in remote locations.