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Product Overview
The Cisco 900 Series ISRs deliver integrated security and threat defense, protecting networks from both known and new Internet vulnerabilities and attacks. These powerful, fixed-configuration routers provide secure broadband and Metro Ethernet and wireless LTE WAN connectivity. Service providers offering both managed Ethernet and wireless LTE WAN services can deploy them in customer locations as CPE. Centralized and remote management capabilities are available through web-based tools and Cisco IOS® Software for full visibility and control of network configurations at the remote site.
The 900 Series ISRs simplify the deployment of Ethernet WAN services, with end-to-end Operations, Administration, and Maintenance (OA&M), Service-Level Agreement (SLA) monitoring and verification, and configuration management.
The Cisco 900 Series ISRs come with a 4-port managed switch, providing LAN ports to connect multiple devices. Figures 1 and 2 show the C921-4P and C926-4P models.
Figure 1.
C921-4P ISR Front, Back, and Top Views
Figure 2.
C926-4P ISR Front, Back, and Top Views
Features and Benefits
Table 1 describes some of the business needs enterprises have in branch offices and other edge networking locations and how the Cisco 900 Series ISRs fulfill those requirements.
Table 1. How the Cisco 900 Series ISRs Address Edge Networking Challenges
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Business need
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Features and descriptions
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High availability and business continuity
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● Redundant WAN connections for failover protection and load balancing
● Dynamic failover protocols such as Virtual Router Redundancy Protocol (VRRP, RFC 2338), Hot Standby Router Protocol (HSRP), and Multigroup HSRP (MHSRP)
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Consistent, high application performance levels
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● Can run multiple services simultaneously with no performance degradation
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Risk mitigation with multilevel security
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● Network perimeter security with integrated application inspection firewall
● Data privacy through high-speed IP Security (IPsec) Triple Data Encryption Standard (3DES) and Advanced Encryption Standard (AES) encryption
● Enforced security policy with intrusion prevention
● Security hardware acceleration
● FlexVPN
● Next-generation encryption for secure network communications systems, reliable for the next decade
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Feature consolidation for real estate, Capital Expenditures (CapEx), and management savings
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● Supports LAN connections
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Unified control of wired and wireless networks from a common console for streamlined operations
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● Simplifies and centralizes configuration and management of wireless and wireline devices
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Remote configuration and management to keep local IT staff lean
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● Supports separate console ports
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Platform Support
Table 2 describes the interfaces and integrated capabilities supported by each of the Cisco 900 Series ISR models.
Table 2. Cisco 900 Series ISRs Ethernet and DSL only SKUs
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Model
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WAN interfaces
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LAN interfaces
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Integrated USB 2.0
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C921-4P
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2 ports Gigabit Ethernet (GE)
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4-port GE managed switch
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Yes
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C931-4P
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2 ports Gigabit Ethernet (GE)
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4-port GE managed switch
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Yes
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C927-4P
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1 port GE and 1 VADSL (Annex A)
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4-port GE managed switch
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Yes
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C926-4P
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1 port GE and 1 VADSL (Annex B/J)
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4-port GE managed switch
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Yes
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C927-4PM
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1 port GE and 1 VADSL (Annex M)
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4-port GE managed switch
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Yes
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Table 3. Cisco 900 Series ISRs LTE SKUs
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Model
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WAN
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LAN switch
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Integrated USB 2.0
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GE
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ADSL2/VDSL2+
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LTE (CAT4)
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GE
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C921-4PLTEGB
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2
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NA
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YES
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4
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Yes
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C921-4PLTEAU
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2
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NA
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YES
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4
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Yes
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C921-4PLTEAS
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2
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NA
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YES
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4
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Yes
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C927-4PLTENA
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1
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1 VA-DSL
(Annex A)
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YES
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4
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Yes
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C927-4PLTEGB
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1
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1 VA-DSL
(Annex A)
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YES
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4
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Yes
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C927-4PLTEAU
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1
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1 VA-DSL
(Annex A)
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YES
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4
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Yes
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C927-4PMLTEGB
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1
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1 VA-DSL
(Annex M)
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YES
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4
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Yes
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C926-4PLTEGB
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1
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1 VA-DSL
(Annex B/J)
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YES
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4
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Yes
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Table 4. Cisco LTE 2.5 Bands Supported
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Model
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C921-4PLTEGB
C927-4PLTENA
C927-4PLTEGB
C927-4PMLTEGB
C926-4PLTEGB
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C921-4PLTEAS
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C921-4PLTEAU
C927-4PLTEAU
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Bands
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LTE bands 1, 3, 7, 8, 20, 28.
FDD LTE 700 MHz (band 28),
800 MHz (band 20), 900 MHz
(band 8), 1800 MHz (band 3), 2100 MHz (band 1), and
2600 MHz (band 7)
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LTE bands 1, 3, 5, 8, 40, 41
FDD LTE 850 MHz (band 5 CLR), 900 MHz (band 8), 1800 MHz (band 3), and 2100 MHz (band 1). TDD LTE 2300 MHz (band 40), and 2500 MHz (band 41)
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LTE bands 1, 3, 5, 7, 8, 28
FDD LTE 700 MHz (band 28), 850 MHz (band 5 CLR), 900 MHz (band 8), 1800 MHz (band 3), 2100 MHz (band 1), and 2600 MHz (band 7)
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Theoretical Category 4 download/upload speeds
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150 Mbps/50 Mbps
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150 Mbps/50 Mbps
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150 Mbps/50 Mbps
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Mexico
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●
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Europe
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●
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Middle East with specific LTE bands/frequencies
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●
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Australia
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●
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China
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●
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India
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●
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Southeast Asia
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●
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Latin America
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Dependent upon specific operators supporting the LTE bands listed above
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Dependent upon specific operators supporting the LTE bands listed above
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Table 5. Cisco LTE
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Item
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Specification
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Important LTE features
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● Multichannel-Interface-Processor (MIP) profile configuration
● Remotely initiated data callback using voice
● Remotely initiated data callback using Short Message Service (SMS)
● Remote firmware upgrade over LTE
● SIM lock and unlock capabilities
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Single SIM support
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● High reliability, and cellular multihoming support for single micro (3FF) SIMs card socket; compliant with ISO-7816-2 (SIM mechanical), Auto SIM carrier capability with correct firmware selection
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SMS
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● Send and receive SMS (maximum 160 characters)
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Modem information
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Modem form factor: WP7600 series for Cisco LTE 2.5
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Wireless technologies supported (performance and throughput)
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Cisco LTE 2.5 (Refer to Table 10: LTE Bands Supported) Backward compatibility:
● LTENA, LTEGB, LTEAU: UMTS, HSPA+ (Band 1, 5, 8), EDGE, GSM, GPRS (900/1800)
● LTEAS: UMTS, HSPA+ (Band 1, 8), EDGE, GSM, GPRS (900/1800)
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Included antenna
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● One multiband swivel-mount dipole antennas (LTE-ANTM-SMA-D) are included with all Cisco LTE 2.5 (Recommend to order 2 nd LTE-ANTM-SMA-D option for better 2X2 MIMO coverage)
For –N antenna and cable installation guidance, view the Connected Grid Antennas Installation Guide
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Carrier support
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Product Specifications
Table 5 shows Cisco IOS Software features and general system specifications for the 900 Series ISRs.
Table 6. Cisco IOS Software Features and System Specifications
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Feature
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Specification
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Cisco IOS Software
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IP and IP services
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● Routing Information Protocol Versions 1 and 2 (RIPv1 and RIPv2) ● Generic Routing Encapsulation (GRE) and Multipoint GRE (MGRE)
● Cisco Express Forwarding ● Standard 802.1d Spanning Tree Protocol
● Layer 2 Tunneling Protocol (L2TP) ● L2TP Version 3 (L2TPv3)
● Network Address Translation (NAT) ● Dynamic Host Configuration Protocol (DHCP) server, relay, and client
● DNS Proxy and DNS Spoofing
● Access Control Lists (ACLs) ● IPv4 and IPv6 multicast
● Open Shortest Path First (OSPF)
● Border Gateway Protocol (BGP)
● Performance Routing (PfR)
● Enhanced Interior Gateway Routing Protocol (EIGRP)
● Virtual Route Forwarding (VRF) Lite
● Next Hop Resolution Protocol (NHRP)
● Bidirectional Forwarding Detection (BFD)
● Web Cache Communication Protocol (WCCP)
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xDSL
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● True Multimode VDSL2 and ADSL2+ over Annex A, B, J, and M, including traditional G.DMT and T1.413
● World-class interoperability with industry-standard DSL Access Multiplexer (DSLAM) chipsets
● Highest field reliability with Impulse Noise Protection (INP) over Repetitive Electrical Impulse Noise (REIN) and single isolated impulse noise (SHINE), extended INP delay, G.INP, physical layer retransmission, Seamless Rate Adaptation (SRA), and Bitswap
● VDSL2 Persistent Storage Device (PSD) profiles up to 17a/b with support for spectral shaping
● VDSL2 vectoring to offer blazing fiber speeds over copper
● Remote management with TR069 and CWMP
● Investment protection with Gigabit Ethernet
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Switch features
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● Auto Media Device In/Media Device Cross Over (MDI-MDX) ● 25 802.1Q VLANs
● Switched Port Analyzer (SPAN) ● Storm control
● Secure MAC address
● Internet Group Management Protocol Version 3 (IGMPv3) snooping
● 802.1X
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Security features
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Secure connectivity:
● Secure Sockets Layer (SSL) VPN for secure remote access
● Hardware-accelerated DES, 3DES, AES 128, AES 192, and AES 256 ● Public-Key-Infrastructure (PKI) support
● Cisco Easy VPN client and server
● Dynamic Multipoint VPN (DMVPN)
● Tunnel-less Group Encrypted Transport VPN (GET VPN)
● VRF-aware IPsec
● IPsec over IPv6
● Adaptive control technology
● Session Initiation Protocol (SIP) application-layer gateway
● Cisco IOS Firewall:
◦ Zone-based policy firewall
◦ VRF-aware stateful inspection routing firewall ◦ Stateful inspection transparent firewall
● Advanced application inspection and control ● HTTPS, FTP, and Telnet Authentication Proxy
● Dynamic and static port security ● Firewall stateful failover
● VRF-aware firewall
● Cisco IOS Software blocked and allowed lists
● Control plane policing
● Flexible packet matching
● Network foundation protection
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Quality of Service (QoS)
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● Low-Latency Queuing (LLQ) ● Weighted Fair Queuing (WFQ)
● Class-Based WFQ (CBWFQ), Class-Based Traffic Shaping (CBTS), Class-Based Traffic Policing (CBTP) ● Policy-Based Routing (PBR)
● Class-Based QoS MIB
● Class of Service (CoS)-to-Differentiated Services Code Point (DSCP) mapping
● Class-Based Weighted Random Early Detection (CBWRED)
● Network-Based Application Recognition (NBAR)
● Link Fragmentation and Interleaving (LFI)
● Resource Reservation Protocol (RSVP)
● Real-Time Transport Protocol (RTP) header compression (cRTP)
● Differentiated Services (DiffServ)
● QoS preclassify and prefragmentation
● Hierarchical QoS (HQoS)
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Management
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● Cisco Configuration Professional
● Cisco Configuration Express
● Cisco Configuration Engine support
● Cisco AutoInstall
● Cisco IP Service-Level Agreement (IP SLA)
● Cisco IOS Embedded Event Manager (EEM)
● Telnet, Simple Network Management Protocol Version 3 (SNMPv3), Secure Shell (SSH) Protocol, Command-Line Interface (CLI), and HTTP management
● RADIUS and TACACS+
● Cisco Next Generation Plug-and-Play (NG PnP) Protocol
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High availability
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● Virtual Router Redundancy Protocol (VRRP) (RFC 2338)
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Metro Ethernet
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● Ethernet OA&M
● Ethernet Local Management Interface (E-LMI)
● IP SLA for Ethernet
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IPv6
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● IPv6 addressing architecture
● IPv6 name resolution
● IPv6 statistics
● IPv6 translation: Transport packets between IPv6-only and IPv4-only endpoints (NAT-Protocol Translation)
● Internet Control Message Protocol Version 6 (ICMPv6)
● IPv6 DHCP
● OSPFv3
● BGP4+
● IPv6 Path Maximum Transmission Unit (PMTU)
● IPv6 neighbor discovery
● IPv6 stateless address autoconfiguration (SLAAC)
● IPv6 multicast routing
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Application visibility and control
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● NBAR2
● Flexible NetFlow (FNF)
● Performance Agent
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Number of recommended users
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● 50
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Default and maximum DRAM
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● Default 1 GB
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Default and maximum flash memory
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● 2 GB on all Cisco 900 Series ISR models; not upgradable
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WAN
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● Refer to Table 2, 3 and 4 for details
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LAN switch
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● Refer to Table 2 for details
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Separate console ports
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● RJ-45
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USB 2.0
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● One USB 2.0 Type A port
Note: USB 2.0 ports cannot be used for connecting external devices other than those specified at: https://www.cisco.com/en/US/prod/collateral/modules/ps6247/product_data_sheet0900aecd80232473.html
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Physical dimensions, LEDs, and weight
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Dimensions:
● C921-4P, C931-4P, and C921-4PLTEXX
◦ H x W x D = 1.70 x 9.0 x 9.5 in. (4.32 x 22.86 x 24.13 cm) (includes rubber feet)
● C927-4P, C927-4PM, C926-4P, C927-4PLTEXX, C927-4PMLTEXX, and C926-4PLTEXX
◦ H x W x D = 1.10 x 10.20 x 7.00 in. (2.80 x 25.91 x 17.78 cm) (includes rubber feet)
LEDs:
● 1x green per Ethernet
● 2x green DSL – CD+Data
● 1x bicolor LED LTE RSSI
● 1x green LED LTE SIM/Activity
● VPN
● System OK
Weight: 2.65 lb (1.20 kg) maximum
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Power supply
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Power specifications:
● AC input voltage: Universal 100 to 240 VAC
● Frequency: 50 to 60 Hz
● Internal power supply (C921-4P, C931-4P, and C921-4PLTEXX only)
● External power adapter (C927-4P, C927-4PM, C926-4P, C927-4PLTEXX, C927-4PMLTEXX, and C926-4PLTEXX only): 12 VDC; 30 W
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Approvals and compliance
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Safety:
● IEC 60950-1
● UL 60950-1
● CAN/CSA C22.2 No. 60950-1
● EN 60950-1
● AS/NZS 60950.1
● Class I Equipment (C921-4P and C931-4P only)
● Class III Equipment (C927-4P, C927-4PM, and C926-4P only)
Emissions:
● 47 CFR Part 15: 2006
◦ CISPR22: Edition 6.0: 2008
◦ CNS13438: 2006
◦ EN 300 386 V1.6.1
◦ EN 55032
◦ EN61000-3-2: 2006 [+ amd 1 & 2]
◦ EN61000-3-3: 2008
◦ ICES-003 Issue 5: 2012
◦ KN 22: 2009
● TCVN 7189: 2009
● VCCI: V-3/2012.04
Immunity:
● CISPR24: 2010 [+ amd 1 & 2]
◦ EN300386: V1.6.1
◦ EN55024: 2010
◦ EN61000-6-1: 2007
◦ KN24: 2011
◦ TCVN 7317:2003
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Environmental operating range
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● Nonoperating temperature: -40° to 158°F (-40° to 70°C)
● Nonoperating humidity: 5% to 95% relative humidity (noncondensing)
● Nonoperating altitude: 0 to 15,000 ft (0 to 4570 m)
● Operating temperature:
◦ C921-4P and C931-4P: 0° to 50°C (de-rate 1°C per 1000-ft increase in altitude)
◦ C927-4P, C926-4P, C927-4PM, C921-4PLTEXX,: 0° to 45°C (de-rate 1°C per 1000-ft increase in altitude)
● Operating humidity: 5% to 95% relative humidity (noncondensing)
● Operating altitude: 0 to 10,000 ft (0 to 3000 m)
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