Cisco 1921 Integrated Services Router- CISCO1921-ADSL2/k9
- 1U Integrated Services Router
- Offers ADSL2+ connectivity for high-speed internet access
- Supports multiple VLANs and Layer 2 features
- Features expansion slots for additional WAN interfaces
- Supports various security features (firewall, VPN, etc.)
- Flexible configuration options through Cisco IOS
- Traffic management and QoS supported
- Supports various WAN interfaces and technologies, including ADSL2, Ethernet, and serial
- Enables deployment in high-speed WAN environments with concurrent services up to 15 Mbps
- Provides secure remote access and site-to-site connectivity
Cisco 1921 Integrated Services Router- CISCO1921-ADSL2/k9 Description
The Cisco 1921 Integrated Services Router- CISCO1921-ADSL2/k9 is a versatile router designed for small to medium-sized businesses. As part of the Cisco 1900 Series Integrated Services Routers, this router offers a robust platform for integrating data, security, wireless, and mobility services. It supports a variety of connectivity options, including ADSL2, Ethernet, and serial interfaces, making it versatile enough to adapt to different networking environments.
Designed to accommodate high-speed WAN environments, the Cisco 1921-ADSL2/K9 supports concurrent services with speeds up to 15 Mbps, ensuring that businesses can maintain reliable and efficient connectivity. It also facilitates secure remote access and site-to-site connections, providing a comprehensive solution for secure and effective communication across different locations.
Featuring VLAN support and Layer 2 capabilities, the 1921-ADSL2/K9 router stands out for its ability to handle complex networking needs as it facilitates efficient network segmentation and data management. Its expansion slots offer the flexibility to add additional WAN interfaces, ensuring that the router can grow alongside the business's evolving requirements. Overall, this router provides secure remote access and site-to-site connectivity, supports impenetrable security and offers flexible configuration options through Cisco IOS.
Traffic Management and QoS Supported
The CISCO 1921-ADSL2/k9 interface supports Traffic Management and QoS ( (NBAR). These mechanisms ensure fair distribution of bandwidth among different traffic classes, help prevent congestion by discarding packets before network congestion occurs, allow for granular control of traffic prioritisation across multiple layers of the network, enable routing decisions based on traffic characteristics, allowing for flexible traffic engineering, optimise network performance by selecting the best path for traffic based on real-time metrics, identifies applications and protocols to enable targeted traffic management and QoS policies.
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Seamless Connectivity
The CISCO1921-ADSL2/k9 comes with a built-in ADSL2 modem and supports a wide range of WAN interfaces to accommodate diverse network requirements. Its dedicated line interfaces like Ethernet WAN (EWAN) and Serial interfaces provide dedicated point-to-point connectivity and support various serial protocols like T1, E1, and RS-232. The integrated cable modem connects to cable internet services, while the xDSL supports various DSL technologies beyond ADSL2, like ADSL Lite, VDSL, and SHDSL. The CISCO1921-ADSL2/k9 also enables wireless WIFI connectivity for clients and other devices and cellular 3G/4G/LTE to provide backup or primary connectivity options.
Tight Security
With a strong foundation for secure network connectivity, the Cisco 1921-ADSL2/K9 incorporates the ADSL2+ that is primarily designed for broadband internet access using ADSL technology, Hardware-Accelerated Encryption, firewall, intrusion prevention, and content filtering to protect the router from unauthorized access and provide robust security with high performance for IPsec VPNs while supporting multiple WAN and LAN connections through integrated ports and expansion slots.
Cisco IOS
Cisco IOS (Internetwork Operating System) is the software that powers Cisco routers, including the 1921-ADSL2/k9. It provides the core functionality for routing, switching, network management, and security. Via this software, the Cisco 1921-ADSL2/K9 allows for granular configuration and troubleshooting, supports a wide range of routing protocols like OSPF, EIGRP, and BGP, includes firewalls, VPN, intrusion prevention, and access control lists (ACLs), prioritises critical traffic for optimal performance, enables voice communication over the network, and provides monitoring capabilities.
What's in the Box?
- Cisco 1921 Integrated Services Router- CISCO1921-ADSL2/k9
- Power Adapter
- User Manual
CISCO 1921-ADSL2/k9 ISR Technical Specifications
Services and Slot Density
- Embedded hardware-based cryptography acceleration (IPsec + SSL): Yes
- RJ-45 onboard LAN/WAN 10/100/1000 ports: 2
- EHWIC slots: 2
- Double Wide EHWIC slots (use of a double wide EHWIC slot will consume 2 EHWIC slots): 1
- Cisco Integrated Services Module (ISM) slots: 0
- Memory (DDR2 DRAM): Default/maximum: 512 MB/512 MB
- USB flash memory (internal): Default/maximum: 256 MB/256 MB
- External USB flash-memory slots (Type A): 1
- USB console port (mini-Type B) (up to 115.2 kbps): 1
- Serial console port (up to 115.2 kbps): 1
- Serial auxiliary port (up to 115.2 kbps: 1
- Integrated power supply: AC and DC power-supply models
- Power-supply options: POE (external) - on AC models only
- Redundant-power-supply support: No
Power Specifications
- AC input voltage: 100-240V ~
- AC input frequency: 47-63 Hz
- AC input current range AC power supply (maximum) (amps): 1.5-0.6
- AC input surge current: <50A
- Typical power (no modules): 25W
- Maximum power capacity with AC power supply: 60W
- Maximum power capacity with PoE power supply (platform only): 70W
- Maximum PoE device power capacity with PoE power supply: 80W
- DC power input: 32-60 VDC, 4A, positive or negative, single source
- DC input wire size: AWG 14 (2.0 mm2)
- Safety ground-wire size: AWG 14 (2.0 mm2), minimum
- Wire terminal (lug): Amp/Tyco No.32957
- Overcurrent protection: 20A maximum
Physical Specifications
- Dimensions (H x W x D): 1.75 x 13.5 x 11.5 in. (4.45 x 34.29 x 29.21 cm)
- Rack height: 1 rack unit (1RU)
- Rack-mount 19 in. (48.3 cm) EIA: Optional
- Wall-mount (refer to installation guide for approved orientation): Yes
- Weight With AC power supply (no modules): 6.75 lb
- Weight With PoE power supply (no modules): 7.5 lb
- Airflow: Back to sides
Environmental Specifications
Operating Conditions
- Temperature: 5906 ft (1800m) maximum altitude: 32-104˚F (0-40˚C)
- Temperature: 9843 ft (3000m) maximum altitude: 32-77˚F (0-25˚C)
- Altitude: 10,000 ft (3,000m)
- Humidity: 10 to 85% relative humidity (RH)
- Acoustic Sound pressure (typical/maximum): 32.99/58.33 dBA
- Acoustic Sound power (typical/maximum): 41.99/67.22 dBA
Transportation and Storage Conditions
- Temperature: -40 to 158˚F (-40 to 70˚C)
- Humidity: 5 to 95% RH
- Altitude: 15,000 ft (4,570m)
Regulatory Compliance
Safety:
- UL 60950-1
- CAN/CSA C22.2 No. 60950-1
- EN 60950-1
- AS/NZS 60950-1
- IEC 60950-1
EMC:
- 47 CFR, Part 15
- ICES-003 Class A
- EN55022 Class A
- CISPR22 Class A
- AS/NZS 3548 Class A
- VCCI V-3
- EN 300-386
- EN 61000 (Immunity)
- EN 55024, CISPR 24
- EN50082-1
Telecom:
- TIA/EIA/IS-968
- CS-03
- ANSI T1.101
- IEEE 802.3
- RTTE Directive
More Information
Delivery Option | 15-20 Working Days |
---|---|
SKU | CISCO1921-ADSL2/k9 |
Management Platform | Cisco IOS |
Condition | New |
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Questions & Answers
Cisco 1921 Integrated Services Router- CISCO1921-ADSL2/k9 Description
The Cisco 1921 Integrated Services Router- CISCO1921-ADSL2/k9 is a versatile router designed for small to medium-sized businesses. As part of the Cisco 1900 Series Integrated Services Routers, this router offers a robust platform for integrating data, security, wireless, and mobility services. It supports a variety of connectivity options, including ADSL2, Ethernet, and serial interfaces, making it versatile enough to adapt to different networking environments.
Designed to accommodate high-speed WAN environments, the Cisco 1921-ADSL2/K9 supports concurrent services with speeds up to 15 Mbps, ensuring that businesses can maintain reliable and efficient connectivity. It also facilitates secure remote access and site-to-site connections, providing a comprehensive solution for secure and effective communication across different locations.
Featuring VLAN support and Layer 2 capabilities, the 1921-ADSL2/K9 router stands out for its ability to handle complex networking needs as it facilitates efficient network segmentation and data management. Its expansion slots offer the flexibility to add additional WAN interfaces, ensuring that the router can grow alongside the business's evolving requirements. Overall, this router provides secure remote access and site-to-site connectivity, supports impenetrable security and offers flexible configuration options through Cisco IOS.
Traffic Management and QoS Supported
The CISCO 1921-ADSL2/k9 interface supports Traffic Management and QoS ( (NBAR). These mechanisms ensure fair distribution of bandwidth among different traffic classes, help prevent congestion by discarding packets before network congestion occurs, allow for granular control of traffic prioritisation across multiple layers of the network, enable routing decisions based on traffic characteristics, allowing for flexible traffic engineering, optimise network performance by selecting the best path for traffic based on real-time metrics, identifies applications and protocols to enable targeted traffic management and QoS policies.

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Seamless Connectivity
The CISCO1921-ADSL2/k9 comes with a built-in ADSL2 modem and supports a wide range of WAN interfaces to accommodate diverse network requirements. Its dedicated line interfaces like Ethernet WAN (EWAN) and Serial interfaces provide dedicated point-to-point connectivity and support various serial protocols like T1, E1, and RS-232. The integrated cable modem connects to cable internet services, while the xDSL supports various DSL technologies beyond ADSL2, like ADSL Lite, VDSL, and SHDSL. The CISCO1921-ADSL2/k9 also enables wireless WIFI connectivity for clients and other devices and cellular 3G/4G/LTE to provide backup or primary connectivity options.
Tight Security
With a strong foundation for secure network connectivity, the Cisco 1921-ADSL2/K9 incorporates the ADSL2+ that is primarily designed for broadband internet access using ADSL technology, Hardware-Accelerated Encryption, firewall, intrusion prevention, and content filtering to protect the router from unauthorized access and provide robust security with high performance for IPsec VPNs while supporting multiple WAN and LAN connections through integrated ports and expansion slots.
Cisco IOS
Cisco IOS (Internetwork Operating System) is the software that powers Cisco routers, including the 1921-ADSL2/k9. It provides the core functionality for routing, switching, network management, and security. Via this software, the Cisco 1921-ADSL2/K9 allows for granular configuration and troubleshooting, supports a wide range of routing protocols like OSPF, EIGRP, and BGP, includes firewalls, VPN, intrusion prevention, and access control lists (ACLs), prioritises critical traffic for optimal performance, enables voice communication over the network, and provides monitoring capabilities.
What's in the Box?
- Cisco 1921 Integrated Services Router- CISCO1921-ADSL2/k9
- Power Adapter
- User Manual
CISCO 1921-ADSL2/k9 ISR Technical Specifications
Services and Slot Density
- Embedded hardware-based cryptography acceleration (IPsec + SSL): Yes
- RJ-45 onboard LAN/WAN 10/100/1000 ports: 2
- EHWIC slots: 2
- Double Wide EHWIC slots (use of a double wide EHWIC slot will consume 2 EHWIC slots): 1
- Cisco Integrated Services Module (ISM) slots: 0
- Memory (DDR2 DRAM): Default/maximum: 512 MB/512 MB
- USB flash memory (internal): Default/maximum: 256 MB/256 MB
- External USB flash-memory slots (Type A): 1
- USB console port (mini-Type B) (up to 115.2 kbps): 1
- Serial console port (up to 115.2 kbps): 1
- Serial auxiliary port (up to 115.2 kbps: 1
- Integrated power supply: AC and DC power-supply models
- Power-supply options: POE (external) - on AC models only
- Redundant-power-supply support: No
Power Specifications
- AC input voltage: 100-240V ~
- AC input frequency: 47-63 Hz
- AC input current range AC power supply (maximum) (amps): 1.5-0.6
- AC input surge current: <50A
- Typical power (no modules): 25W
- Maximum power capacity with AC power supply: 60W
- Maximum power capacity with PoE power supply (platform only): 70W
- Maximum PoE device power capacity with PoE power supply: 80W
- DC power input: 32-60 VDC, 4A, positive or negative, single source
- DC input wire size: AWG 14 (2.0 mm2)
- Safety ground-wire size: AWG 14 (2.0 mm2), minimum
- Wire terminal (lug): Amp/Tyco No.32957
- Overcurrent protection: 20A maximum
Physical Specifications
- Dimensions (H x W x D): 1.75 x 13.5 x 11.5 in. (4.45 x 34.29 x 29.21 cm)
- Rack height: 1 rack unit (1RU)
- Rack-mount 19 in. (48.3 cm) EIA: Optional
- Wall-mount (refer to installation guide for approved orientation): Yes
- Weight With AC power supply (no modules): 6.75 lb
- Weight With PoE power supply (no modules): 7.5 lb
- Airflow: Back to sides
Environmental Specifications
Operating Conditions
- Temperature: 5906 ft (1800m) maximum altitude: 32-104˚F (0-40˚C)
- Temperature: 9843 ft (3000m) maximum altitude: 32-77˚F (0-25˚C)
- Altitude: 10,000 ft (3,000m)
- Humidity: 10 to 85% relative humidity (RH)
- Acoustic Sound pressure (typical/maximum): 32.99/58.33 dBA
- Acoustic Sound power (typical/maximum): 41.99/67.22 dBA
Transportation and Storage Conditions
- Temperature: -40 to 158˚F (-40 to 70˚C)
- Humidity: 5 to 95% RH
- Altitude: 15,000 ft (4,570m)
Regulatory Compliance
Safety:
- UL 60950-1
- CAN/CSA C22.2 No. 60950-1
- EN 60950-1
- AS/NZS 60950-1
- IEC 60950-1
EMC:
- 47 CFR, Part 15
- ICES-003 Class A
- EN55022 Class A
- CISPR22 Class A
- AS/NZS 3548 Class A
- VCCI V-3
- EN 300-386
- EN 61000 (Immunity)
- EN 55024, CISPR 24
- EN50082-1
Telecom:
- TIA/EIA/IS-968
- CS-03
- ANSI T1.101
- IEEE 802.3
- RTTE Directive
Delivery Option | 15-20 Working Days |
---|---|
SKU | CISCO1921-ADSL2/k9 |
Management Platform | Cisco IOS |
Condition | New |