Description
Cisco 3845 ISR with 2x Gigabit Ethernet & 1x SFP. Fully managed enterprise router, rack-mountable 2U design for secure, scalable business networking.
| Specification | Details |
|---|---|
| Brand | Cisco Systems, Inc. |
| Model | 3845 |
| Type | Integrated Services Router (ISR) |
| Interfaces | 2 x Gigabit Ethernet, 1 x SFP |
| Management | Fully Managed |
| Form Factor | Rack-Mountable (2U) |
| Compliance | FCC Part 15, CAN ICES-3(A)/NMB-3(A), FCC Pat.68 |
| Certifications | UL Listed, CCC, CE, VCCI-A, IDA Standards, MET Certified |
| Laser Classification | Class 1 Laser Product |
| Manufacturing Location | Made in Hong Kong |
| Regulatory Codes | US: 5B1SI10B0083, REN: 1.0B, IC: 2461B-0134 |
| Safety Notes | For Class A use; not designed for emergency telecom systems |
Product Features
-
2 x Gigabit Ethernet interfaces + 1 x SFP for high-speed WAN/LAN connectivity
-
Integrated Services Router (ISR) with advanced routing, security & QoS
-
Rack-mountable 2U form factor for enterprise deployments
-
Fully managed with Cisco IOS for secure, policy-based networking
-
Modular and scalable design for future expansion
-
Class A digital device compliance for enterprise-grade networking
-
Enterprise reliability backed by Cisco’s ISR family
General Product Information
The Cisco 3845 Integrated Services Router (ISR) is a powerful enterprise-grade solution designed for secure, scalable, and flexible networking. Equipped with 2 Gigabit Ethernet ports and 1 SFP interface, it delivers high-speed connectivity for WAN and LAN applications.
As part of Cisco’s trusted ISR family, the 3845 combines routing, security, voice, and advanced services into a single rack-mountable device, reducing the need for multiple appliances. With Cisco IOS software, it offers policy-based management, advanced QoS, and robust security, making it suitable for mission-critical enterprise workloads.
The 2U rack-mountable form factor ensures seamless integration into enterprise server rooms and data centers. Certified with global compliance standards (FCC, CE, UL, CCC, VCCI) and Class 1 laser product safety, the Cisco 3845 provides reliability, compliance, and long-term investment protection.
Ideal for medium-to-large businesses, the Cisco 3845 ISR is perfect for organizations looking to consolidate networking, enhance security, and scale operations with Cisco’s proven networking technology.
Technical Specifications Table
| Category | Specification |
|---|---|
| Brand | Cisco |
| Model | 3845 ISR |
| Type | Integrated Services Router |
| Interfaces | 2 x Gigabit Ethernet, 1 x SFP |
| Management | Fully Managed (Cisco IOS) |
| Form Factor | Rack-Mountable (2U) |
| Expansion | Modular slots for additional services (voice, VPN, security) |
| Routing Protocols | RIP, OSPF, EIGRP, BGP (depending on IOS version) |
| QoS | Yes – advanced traffic prioritization |
| Security | Integrated firewall, VPN support |
| Certifications | UL, CE, CCC, MET, VCCI-A, IDA, FCC |
| Compliance | FCC Part 15, CAN ICES-3(A)/NMB-3(A) |
| Laser Classification | Class 1 Laser Product |
| Weight | ~25 lbs (approx.) |
| Power | Auto-ranging AC input |
| Manufacturing Origin | Made in Hong Kong |
Compatible Products
-
Cisco SFP transceivers (1G SX/LX/ZX)
-
Cisco ASA or Firepower firewalls
-
Cisco Catalyst switches (2960, 3560, 3750 series)
-
Enterprise servers (Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem)
-
Operating Systems: Windows Server, Linux, VMware ESXi, Hyper-V
-
Cisco UCS servers for unified networking environments
Ideal Use Cases
-
Enterprise WAN/LAN backbone – secure, high-speed routing
-
Financial Institutions – policy-based networking and compliance-ready security
-
Educational Networks – scalable routing for large campuses
-
Voice & Unified Communications – ISR integration with VoIP systems
-
Branch & Remote Offices – reliable ISR for distributed enterprise networks
Comparison Angle
The Cisco 3845 ISR stands out by:
-
Offering Gigabit Ethernet interfaces vs. earlier ISR models with Fast Ethernet only
-
Providing modular expansion for voice, VPN, and security services
-
Enterprise-grade compliance certifications unmatched by many SMB routers
-
Cisco IOS-powered management ensuring flexibility and long-term support
Compared to newer ISR 4000 series, the 3845 remains a budget-friendly alternative while still delivering reliable performance for enterprise environments.
Cross-Sell / Upsell Suggestions
-
Cisco Catalyst switches (2960, 3560, 3750 series)
-
Cisco ASA Firewalls / Cisco Firepower appliances
-
Cisco SFP Modules (SX, LX, ZX)
-
Rackmount kits & PDUs
-
Enterprise-grade servers (Dell, HPE, Cisco UCS)
-
Cisco SmartNet support contracts