Cisco C927-4P Full Product Description

1. Short Overview

Suffix Breakdown

• C927: POTS xDSL-native fixed router platform of Cisco 900 Series optimized for analog Annex A copper loops
• 4: Integrated 4-port full Gigabit LAN switch
• P: All LAN ports support IEEE 802.3af PoE with total 60W PoE power budget (max 15.4W per port)

Core Differentiators

1. vs ISDN DSL C926-4P: C926-4P complies with ISDN Annex B/J standards; C927-4P is built for mainstream analog POTS Annex A DSL deployments worldwide.
2. vs high-upload C927-4PM: C927-4PM uses Annex M spectrum for boosted upstream bandwidth; C927-4P adopts standard Annex A profile for regular asymmetric DSL servicesCisco.
3. vs pure Ethernet C921-4P: C921-4P offers dual copper GE WAN without DSL modem; C927-4P adds native VDSL2/ADSL2+ Annex A primary xDSL transport plus GE backup link.
4. vs LTE variant C927-4PLTExx: C927-4P has no embedded CAT4 LTE cellular modem; LTE variants add wireless cellular backup transport for off-grid sites.
5. vs legacy C897VA-K9 ISR G2: C897VA-K9 runs older IOS with limited feature scalability, external high-power PoE PSU and larger chassis; C927-4P uses slim compact form factor, simplified power design and modern IOS 15.8 image with enhanced threat defense and remote automation.
6. vs industrial rugged routers: C927-4P is commercial indoor desktop hardware with standard temperature operating range, not ruggedized for vehicle, railway or extreme outdoor shock/vibration environments.

2. Hardware Interface & Performance Specifications

Dual Redundant WAN Interfaces (Automatic Failover Supported)

1. Integrated Multimode VDSL2/ADSL2+ Port (Annex A for Analog POTS Circuits)
   Fully compliant with ITU G.993.2 VDSL2, G.992.5 ADSL2+ Annex A POTS standard, auto-negotiates all mainstream DSL line profiles. Supports G.INP impulse noise protection, Seamless Rate Adaptation (SRA), bitswap, TR069 remote DSLAM provisioning, real-time copper loop quality monitoring and Dying Gasp fault detection, optimized for global residential and business analog POTS carrier networksCisco.
2. 1 × 10/100/1000BASE-T Copper Gigabit Ethernet WAN Port
   Secondary backup Metro Ethernet/cable broadband uplink, auto MDI/MDI-X speed & duplex negotiation, supports HSRP, VRRP, MHSRP and policy-based multi-path failover triggered upon DSL link outage.

4-Port Full Gigabit PoE Managed LAN Switch

• 802.1Q VLAN tagging, port isolation, static MAC port security, dedicated DMZ port assignment
• Broadcast storm suppression, SPAN traffic mirroring, LACP link aggregation, Smartport auto-config macros
• Per-port CoS marking, port bandwidth limiting, private VLAN segmentation

Management & Auxiliary Ports

1. Separate dedicated RJ45 Console port: Independent local CLI configuration via rollover cable for out-of-band device management
2. Single USB 2.0 Type-A host port: External flash storage for offline config backups, system log archiving, EEM automation scripts and device Zero-Touch Provisioning files
3. External DC power input jack (requires separate 12V 30W universal AC power adapter, no internal built-in PSU)
4. Hardware reset button, Kensington anti-theft lock slot for physical equipment protection
5. Embedded RTC real-time clock for accurate timestamping of security logs, digital certificates and network fault events

Memory & Storage

• DRAM: 1 GB fixed system memory, supports up to 50 concurrent IPsec/DMVPN tunnels, multi-path routing, inline NGIPS inspection and full PoE LAN traffic processing
• Flash storage: 256 MB onboard flash; factory preloadedc900-universalk9-mzIOS Universal Advanced Security image, minimum supported firmware release 15.8(3)MbCisco.

Front Panel LED Status Indicators

Physical & Power Parameters

• Form factor: Slim compact metal desktop chassis, optional wall-mount bracket available
• Dimensions (H × W × D): 28 mm × 259.1 mm × 177.8 mm
• Weight: ~1.1 kg (2.4 lbs) without external power adapter
• Power supply requirement: Separate external 12V DC 30W universal AC adapter (100–240V AC mains input)
• Typical maximum power consumption: 20 W under full POTS DSL + GE WAN + all 4 PoE LAN ports full load
• Ingress protection: IP20, only suitable for dry indoor commercial office environments

Environmental Operating Specifications

• Operating temperature: 0°C ~ +45°C (32°F ~ 113°F); performance degrades 1.5°C per 1000 m altitude above 3000 mCisco
• Storage temperature: -20°C ~ +65°C (-4°F ~ 149°F)
• Relative humidity: 10%–85% RH non-condensing
• Maximum operating altitude: 3,000 m (10,000 ft)

3. Hardware Acceleration & Security Engine

• Dedicated onboard crypto co-processor fully offloads IPsec, IKEv2 and SSL VPN encryption traffic, eliminating CPU bottlenecks under heavy concurrent remote access and site-to-site tunnel loads
• Permanent integrated security license suite enables full enterprise encryption stack: AES-128/192/256, 3DES, DES, SHA-1/SHA-2, IKEv1/IKEv2 static tunnels, Easy VPN remote access and DMVPN dynamic hub-spoke tunnels
• Native traffic isolation filters to segregate corporate staff LAN, PoE camera/VoIP subnet and untrusted internet via independent VLAN zoning

4. Cisco IOS Advanced Security Feature Suite

Dual WAN Redundancy & POTS Annex A DSL Routing

• Cisco Express Forwarding (CEF), static routing, RIPv1/v2, OSPF, EIGRP, BGP, GRE/MGRE tunnel encapsulation, complete IPv4/IPv6 dual-stack routing support
• Automatic policy-based multi-tier failover logic between primary Annex A VDSL2/ADSL2+ POTS DSL and secondary copper GE WAN link via HSRP/VRRP/MHSRP
• Dedicated DSL OAM for POTS copper loop diagnostics, TR069 remote DSLAM management, Metro Ethernet 802.3ah E-LMI link SLA monitoring for GE backup circuit
• Policy-Based Routing (PBR), multi-NAT pools, PAT overload for logical segmentation of PoE-powered IoT devices and standard wired endpoints
• DHCP server/relay/client, DNS proxy, dynamic DNS, IP SLA active link performance monitoring

Unified Enterprise Threat Security Suite

• Zone-Based Stateful Inspection Firewall (ZBFW) to isolate internal corporate LAN, PoE device subnet, DMZ and untrusted internet traffic zones
• Next-Generation Intrusion Prevention System (NGIPS), Cisco cloud URL filtering, deep NBAR2 advanced application control for HTTP, FTP, IM, video conferencing and mainstream business applications
• AAA authentication via TACACS+ / RADIUS, 802.1X port authentication available on all 4 Gigabit PoE LAN ports
• Secure management only: SSHv2, HTTPS, SNMPv3; plaintext Telnet disabled by factory default
• Granular access control lists (ACLs), static MAC address port lockdown on Gigabit switch ports, anti-spoofing and DDoS mitigation filters for DSL inbound traffic

Multi-Layer QoS & Asymmetric DSL Bandwidth Optimization

• WFQ, CBWFQ, LLQ low-latency queuing mechanisms for priority forwarding of voice, video surveillance, POS payment and industrial SCADA real-time traffic
• NBAR2 deep packet inspection to classify and prioritize business-critical workloads over metered POTS DSL circuits
• RTP/TCP header compression, DSL traffic shaping and policing to control xDSL metered data consumption and avoid bandwidth overage charges
• PoE QoS scheduling to guarantee stable power and bandwidth priority for mission-critical IP cameras and VoIP handsets

Remote Management & Automation

• Cisco Zero-Touch Provisioning (ZTP) for mass standardized deployment of enterprise branches and ISP POTS managed CPE
• Cisco IOS Embedded Event Manager (EEM): Scriptable triggers for DSL line drop, GE WAN link failure, PoE power faults and USB storage events with email/SNMP alert notifications
• SNMP v2c/v3, remote syslog, IP SLA end-to-end link performance telemetry, dedicated DSL MIB extensions for POTS copper loop signal status and line quality
• Compatible with Cisco Configuration Professional (CCP) web GUI for simplified CLI-free deployment and daily monitoring of routing, security, PoE and DSL subsystems
• GOLD non-disruptive onboard diagnostics for continuous remote hardware health checks of DSL modem, copper Ethernet and PoE subsystems

5. Typical Deployment Scenarios

1. POTS Small Retail Dual-WAN PoE Secure Gateway
   Primary Annex A VDSL2/ADSL2+ POTS DSL delivers daily retail broadband transaction traffic, copper GE Metro Ethernet serves as high-speed redundant backup. The 4-port full PoE LAN switch powers POS payment terminals, VoIP phones and on-site IP surveillance cameras. VLAN segmentation isolates sensitive payment infrastructure from guest device traffic, persistent IPsec DMVPN tunnels transmit retail data securely back to central corporate data centers, zone firewall + NGIPS block external network intrusion risks over standard analog DSL lines.
2. Service Provider Managed POTS Business CPE
   Uniform compact hardware platform enables ISPs to deliver either Annex A VDSL2/ADSL2+ DSL or copper GE Metro Ethernet managed broadband services to small enterprise subscribers. Centralized ZTP mass deployment and remote SNMP monitoring support bundled managed security, PoE and networking service packages for global POTS carrier markets.
3. Remote Small Office Branch Router with Redundant WAN
   Dual DSL/GE WAN redundancy meets enterprise business continuity requirements, integrated PoE eliminates separate power injectors for cameras and VoIP handsets, full EIGRP/BGP routing support enables seamless integration into the corporate core network.
4. Campus Remote Building PoE IoT Edge Router
   PoE LAN ports connect IP cameras, access control hardware and environmental monitoring sensors; POTS DSL acts as primary connectivity for remote buildings without fiber coverage, copper GE link provides automatic high-throughput backup to campus core network, uninterrupted video and sensor data transmission is guaranteed during DSL outages.
5. POTS-Line Teleworker Small Office Secure VPN Concentrator
   Deployed at remote employee residences with standard Annex A POTS copper circuits, multimode VDSL2/ADSL2+ DSL provides stable primary transport for encrypted Easy VPN connectivity to corporate headquarters. PoE ports power home office IP cameras and VoIP equipment, integrated unified security services defend all wired Gigabit endpoints against malware and unauthorized internet access.

6. Standard Package Contents of C927-4P

Separately Sold Optional Accessories

• RJ45 rollover console cable for local CLI configuration
• 12V 30W external universal AC power supply (mandatory operating accessory)
• POTS DSL copper line cord for xDSL WAN connection
• USB flash storage drives for log archiving and offline configuration backup
• CAT5e/CAT6 Ethernet patch cords for LAN and copper GE WAN connections

Software Licensing Information

• Permanent integrated security & crypto license included; no additional purchase required for IPsec, AES encryption, zone firewall and NGIPS threat defense features
• All core routing, dual DSL/GE WAN failover, POTS DSL OAM line management, PoE power management, QoS, ZTP and 4-port Gigabit managed switch features are fully included in the base IOS universal image; no extra paid feature licenses needed
• No wireless AP or cellular modem license applicable (corresponding hardware is omitted from this pure wired POTS xDSL PoE SKU)

Short Commercial Catalog Summary for Quotation