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C3845-VSEC-SRST/K9
- Description:
- 3845 VSEC Bundle w/PVDM2-64,FL-SRST-250,Adv IPServ,128F/512D
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3 Year Extended Warranty
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3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
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Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
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Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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C3845-VSEC-SRST/K9 Overview
C3845-VSEC-SRST/K9 is a robust, modular enterprise router engineered with a scalable architecture that integrates advanced security features and survivable remote site telephony. It offers flexible power options with redundancy, multiple WAN and LAN interfaces, and integrated services such as voice and video to ensure reliable connectivity and optimized network performance.
C3845-VSEC-SRST/K9 supports modular capabilities that allow the addition of interface cards and expansion modules, enhancing appliance adaptability in dynamic network environments. With built-in VPN features, high throughput capacity, redundant design for high availability, and QoS and firewall functionalities, this router is ideal for enterprises and remote sites demanding secure, high-performance WAN/LAN connectivity and comprehensive integrated services.
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C3845-VSEC-SRST/K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec / DMVPN / FlexVPN |
| Power Source | AC Power Supply / Redundant |
| Routing Protocols | EIGRP / OSPF / BGP / IS-IS / RIP / Static Routing |
| Broadband | N/A |
| Architecture | Modular |
| WAN Configuration | Dual WAN |
| WAN Ports | 2 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100/1000 |
| Wi-Fi Standard | N/A |
| Connectivity Type | Wired |
| Network Protocols | IPv4 / IPv6 / MPLS |
| Remote Management | SSH / Telnet / SNMP |
| Compliance Standards | FCC / CE / RoHS |
| Wireless Support | No |
| Speed/Capacity | Gigabit |
| Firewall Features | Yes |
| Features | Mesh / VPN / VoIP / IPv6 Compatible / Firewall |
| Use Case | Enterprise |
| Management | Managed |
| Form Factor | Rack-mount |
| Integrated Services | Voice / Video / WAN Optimization |
| High Availability Support | Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | 75 Mbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection |
| Expansion Slots | EHWIC / NIM |
| Modular Slots Available | 3+ Slots |
| Stacking Capability | Yes |
| 5G Support | No |
| Memory | 512 MB |
| Flash Memory | 256 MB |
| Interface Ports | RJ-45 / SFP / Combo Ports |
| Power | 350 Watt |
| Device Type | Router |
| Product Name | Cisco C3845-VSEC-SRST/K9 |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
C3845-VSEC-SRST/K9 Use Case
Branch Office Telephony Continuity with Local SRST Fallback
In a distributed retail environment, network outages to headquarters jeopardize in-store VoIP services. Deploy the C3845-VSEC-SRST/K9-3845 VSEC Bundle w/PVDM2-64,FL-SRST-250,Adv IPServ,128F/512D at each branch to host CallManager Express for up to 250 IP phones. When WAN connectivity drops, the FL-SRST-250 module automatically activates local call processing and PSTN failover, while the PVDM2-64 DSP ensures high-quality voice transcoding. Benefit: Zero downtime for critical voice communications, reduced support costs, and uninterrupted customer service during central site failures.
Secure Multi-Site VoIP Gateway with Hardware-Accelerated Encryption
A global professional services firm needs end-to-end voice encryption across its MPLS backbone. Using the C3845-VSEC-SRST/K9-3845 VSEC Bundle w/PVDM2-64,FL-SRST-250,Adv IPServ,128F/512D at each regional office, the built-in Voice Security (VSEC) engine offloads IPsec/SRTP cryptographic functions, while Advanced IP Services delivers dynamic MPLS L3VPN routing. Integrating PVDM2-64 DSP resources ensures media quality and codec interoperability. Benefit: Compliant, fully encrypted VoIP calls over shared WAN, minimised CPU load on the router, and consistent voice quality across all locations.
Converged WAN & Unified Communications Router with QoS Prioritization
A financial institution requires guaranteed voice performance and secure data transport over a congested internet link. The C3845-VSEC-SRST/K9-3845 VSEC Bundle w/PVDM2-64,FL-SRST-250,Adv IPServ,128F/512D unifies voice and data on a single platform, leveraging Advanced IP Services for multiclass QoS shaping and class-based WFQ, while PVDM2-64 DSPs handle voice packet processing. The VSEC module enforces AES-256 encryption for VoIP signaling and media. Benefit: Predictable call quality under peak loads, simplified network architecture, and end-to-end voice/data security in one robust appliance.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | No |
| Architecture | Modular | Fixed | Modular | Modular | Modular |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC, CE | IEEE 802.3 / IEEE 802.1Q | FCC, CE | FCC / CE / RoHS | FCC / CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | N/A | 16 inches | N/A | 16.3 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | EN 55022 | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC / NIM | EHWIC / NIM | NIM / EHWIC / SFP+ | EHWIC / NIM | NIM / EHWIC |
| Features | VPN / VoIP / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | Mesh / VPN / VoIP / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall / MPLS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | N/A | N/A | 4.5 inches | N/A | 4.4 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 / SFP | RJ-45 | RJ-45 / SFP | RJ-45 / SFP / Combo Ports | RJ-45 / SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Modular Slots Available | 3+ Slots | 3+ Slots | 2 Slots | 3+ Slots | 2 Slots |
| Network Protocols | IPv4, IPv6 | IPv4 / IPv6 | IP, ICMP, TCP, UDP, RTP, SIP | IPv4 / IPv6 / MPLS | IP / TCP / UDP / ICMP / SNMP |
| Power | 350 W | 275 W | 250 W | 350 Watt | 350 W |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco CISCO3845 Integrated Services Router | CISCO3845-AC-IP | Cisco C3825 VSEC CUBE/K9 | Cisco C3845-VSEC-SRST/K9 | Cisco 3845 Integrated Services Router (CISCO3845-V/K9) |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | TELNET, SSH, SNMP | SNMP / Telnet / SSH / HTTP/HTTPS | SSH, Telnet, SNMP | SSH / Telnet / SNMP | Telnet / SSH / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | EIGRP / OSPF / BGP / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | UL, CSA | N/A | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | Yes | Yes | No |
| Telecom | N/A | N/A | RoHS Compliant | N/A | N/A |
| Throughput Capacity | 0.3 Gbps | N/A | 50 Mbps | 75 Mbps | 60 Mbps |
| Use Case | Enterprise / Business | Enterprise | Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec | IPSec | IPSec / SSL VPN / DMVPN | IPSec / DMVPN / FlexVPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN Ports |
| Weight | N/A | N/A | 20 lbs | N/A | 31.3 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | 17 inches | N/A | 17.3 inches |
| Wireless Support | No | No | No | No | No |
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Questions & Answers
Q
What is the Cisco 3845 VSEC Bundle with SKU C3845-VSEC-SRST/K9?
A
The C3845-VSEC-SRST/K9 bundle combines a Cisco 3845 ISR with a PVDM2-64 DSP module, FL-SRST-250 survivable telephony license, Advanced IP Services, and support for 128 forwarding/512 data sessions.
Q
What is the PVDM2-64 module included in this bundle?
A
PVDM2-64 is a 64-channel Packet Voice Digital Signal Processor that delivers voice compression, conferencing and transcoding services on Cisco routers.
Q
What functionality does the FL-SRST-250 license provide?
A
FL-SRST-250 enables Survivable Remote Site Telephony for up to 250 IP phones, ensuring continued voice service during WAN or call-manager outages.
Q
Which features are enabled by the Advanced IP Services license?
A
Advanced IP Services includes MPLS, advanced QoS, dynamic routing (BGP, OSPF, EIGRP), IPv6, VPN and advanced security protocols for enterprise-grade networking.
Q
What does the designation “128F/512D” mean?
A
“128F/512D” specifies the router’s capacity for 128 forwarding table entries and 512 concurrent data sessions for optimized packet processing.
Q
What performance levels can I expect from this bundle?
A
You get up to 90 Mbps of aggregate throughput, hardware-accelerated encryption for VPN, and support for simultaneous voice, video and data services.
Q
What security features are built into the 3845 VSEC Bundle?
A
It includes Cisco IOS Firewall, Intrusion Prevention System, IPsec VPN acceleration, Secure Boot and Control Plane Policing for advanced threat protection.
Q
Is the C3845-VSEC-SRST/K9 compatible with existing Cisco 3845 routers?
A
Yes. The bundle is designed for Cisco 3845 chassis running IOS Release 12.4(15)T or later, with no additional hardware modifications required.
Q
What are the power and physical specifications?
A
The router is a 1U rack-mount device with a single AC power supply (100–240 VAC, 50–60 Hz, 12.5 A max) and operating temperature range of 32–104 °F (0–40 °C).
Q
What warranty and support options are available?
A
Includes a one-year limited hardware warranty. Cisco SMARTnet contracts offer 24×7 technical support, software updates and expedited hardware replacement.
Q
How do I configure Survivable Remote Site Telephony (SRST)?
A
In IOS, enable SRST with the "telephony-service" commands, define SRST fallback settings, auto-assign phone extensions and verify with "show telephony-service".
Q
How does this bundle enhance voice and video quality?
A
It leverages PVDM2 DSP resources and advanced QoS policies to prioritize real-time traffic, minimize jitter and packet loss for crystal-clear calls.
Q
What scalability options are supported?
A
Supports up to 64 simultaneous voice calls, additional PVDM2 modules, memory/flash upgrades and optional NME network modules for future expansion.
Q
How many VPN tunnels can the 3845 VSEC Bundle handle?
A
With hardware encryption acceleration, it supports up to 250 concurrent IPsec VPN tunnels at full line rate.
Q
What is the process for upgrading the IOS software?
A
Transfer the new IOS image to flash via TFTP or FTP, update the "boot system" variable, save the configuration and reload the router.
Q
What are the typical use cases for this bundle?
A
Ideal for medium-sized enterprise branch offices requiring integrated voice survivability, secure VPNs, MPLS connectivity and advanced routing.
Q
What is the End-of-Life status for the Cisco 3845 VSEC Bundle?
A
The Cisco 3845 platform reached End-of-Sale in December 2012 and End-of-Support in December 2017. Verify current timelines on Cisco's official EoL bulletin.
