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Cisco ISR1100-4GLTENA - Integrated Services Router

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Tech Overview

Cisco Part Number: ISR1100-4GLTENA is a Cisco ISR1100 Router, 4 Eth LAN/WAN Ports, 1 LTE Port, 4G RAM

The ISR 1100 Series and ISR 1100X Series, integral components of the Cisco 1000 Series Integrated Services Routers (ISR), operate on either the Viptela operating system or the IOS XE SD-WAN operating system. These devices seamlessly integrate wide area network (WAN) capabilities with robust security features, presenting a high-performance, wired platform.

Designed to deliver enterprise-grade performance coupled with top-tier SD-WAN functionality, both the ISR 1100 Series and ISR 1100X Series routers provide a powerful solution for diverse networking needs. The ISR 1100 Series is equipped with 4GB DRAM, while the ISR 1100X Series boasts 8GB DRAM, catering to varying requirements.

Cisco Software-Defined WAN (SD-WAN) introduces a cloud-first approach, furnishing unmatched visibility into your WAN infrastructure, ensuring optimal connectivity for end-users, and delivering a comprehensive security framework for safeguarding your network. This innovative architecture offers transport independence, a wide array of network and security services, and flexibility in endpoint configurations.

ISR1100-4GLTENA Functioning as perimeter devices for sites like remote offices, branch offices, campuses, or data centers, the ISR 1100 Series and ISR 1100X Series routers play a pivotal role in establishing secure virtual overlay networks across diverse WAN transports. Operating in controller mode, they facilitate the creation and management of these networks, ensuring robust security and seamless connectivity.

Performance specification of the ISR1100 series

Performance parameter

ISR 1100X-6G

ISR 1100-6G

ISR 1100X-4G

ISR 1100-4G

SD-WAN IPsec throughput

(1400 Bytes)

1889 Mbps

1889 Mbps

477 Mbps

477 Mbps

SD-WAN IPsec throughput


972 Mbps

972 Mbps

411 Mbps

411 Mbps

SD-WAN overlay tunnels





Cisco ISR1100-4GLTENA chassis specification:

Item Specification
Services and Slot Density
RJ45 Console 1
Ethernet RJ45 Ports 4
USB Type A USB 3.0, 4.5 W Maximum
Bulk Flash 8 GB eMMC pSLC
Serial Flash Dual 16MB
GE WAN Ports 4
Micro-SIM Socket 1
LTE Debug Port 1 (Micro USB Connector)
Physical Specifications
Form Factor 10.2 in x 7 in x 1.1 in
Operating Conditions
Temperature Fanless design
0 to 40°C (32 to 104°F) at sea level (temperature de-rating of 1.5 deg C per 1000 feet of altitude applicable up to max of 10,000 feet or 3000 m)
Altitude Max 3000 m (10000 ft)
Humidity 10 to 85% RH non-condensing
Transportation/Storage Conditions
Temperature -40 to 70°C (-40 to 158°F)
Humidity 5 to 95% RH non-condensing
Altitude 4570 m (15,000 ft)
MTBF Approximately 1.6 million hours (about 183 years) at 25°C ambient





















LTE Bands Supported

Region or theater




LTE: B2, B4, B5, B12, B13, B14, B17, B66

FDD LTE 1900 MHz (band 2), 1700 MHz (band 4), 850 MHz (band 5), 700 MHz (band 12, 13, 14, 17), 1700MHz (band 66)

UMTS: B2, B4, B5

LTE: B1, B3, B7, B8, B20, B28

FDD LTE 2100 MHz (band 1), 1800 MHz (band 3), 2600 MHz (band 7), 900 MHz (band 8), 800 MHz (band 20), 700 MHz (band 28)

UMTS: B1, B8


Theoretical download/upload speeds

150 Mbps/50 Mbps – LTE (CAT4)

150 Mbps/50 Mbps – LTE (CAT4)

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