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$61,000.00
$32,418.0046.9% off
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4OC3X/ATM-IR-SC
4-port OC3/STM1 Eng 3 ATM - 1x512MB default mem
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.

Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
4OC3X/ATM-IR-SC is a high-performance, modular enterprise router engineered for secure ATM and industrial connectivity. Designed with a robust modular architecture, it offers multiple power options including AC/DC and redundant supplies, ensuring exceptional uptime and reliability for critical applications.
4OC3X/ATM-IR-SC features dual WAN interfaces alongside four LAN ports to deliver unparalleled throughput, while its integrated services—including voice, video, and WAN optimization—complement advanced VPN capabilities such as IPSec and SSL VPN. Its expansion and modular slot capabilities coupled with high redundancy and performance make it an ideal solution for enterprise environments, industrial settings, and secure ATM network deployments.
4OC3X/ATM-IR-SC price is $32,418.00, a 46.9% saving from the Cisco list price of $61,000.00. 4OC3X/ATM-IR-SC is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 4OC3X/ATM-IR-SC for additional pricing. Browse the full Cisco Router 12000 Series series or explore all Cisco products.
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| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Modular |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC / CE / RoHS | CE, FCC, RoHS | FCC, CE, RoHS | IEEE 802.3, FCC, CE | FCC, CE, UL |
| Connectivity Type | Wired | Wired | Wired | Wired / Ethernet | Wired |
| Depth | 18 inches | 20 inches | 18 inches | 20 inches | 20.0 inches |
| Device Type | Router | Router | Router | Router | Router |
| Ethernet Technology | 10/100/1000 | 10G | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | NIM / SFP+ | SFP+ | NIM, SFP+ | EHWIC, NIM | NIM, EHWIC |
| Features | VPN / IPv6 Compatible / Firewall / POE / MPLS / Syslog | VPN / IPv6 Compatible / Firewall / MPLS | Mesh, VPN, IPv6 Compatible, Firewall, POE, MPLS, Syslog | Mesh, VPN, IPv6 Compatible, Firewall, POE, MPLS | VPN, Firewall, IPv6 Compatible, MPLS, VoIP |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 256 MB | 512 MB | 512 MB | 512 MB |
| Form Factor | Rack-mount | Chassis | Rack-mount | Rack-mount | Chassis |
| Height | 2 inches | 4 inches | 4 inches | 4 inches | 3.5 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, SFP+, Combo Ports | RJ-45, SFP, SFP+ | RJ-45, SFP | RJ-45, SFP, SFP+ |
| LAN Ports | 4 LAN Ports | 24 LAN Ports | 24 LAN Ports | 24 LAN Ports | Modular LAN |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB | 4 GB |
| Modular Slots Available | 3+ Slots | 3+ Slots | 3+ Slots | 3+ Slots | 3+ Slots |
| Network Protocols | IPv4 / IPv6 | IPv4, IPv6, MPLS | IPv4, IPv6, MPLS | IPv4, IPv6, SNMP, DHCP, DNS | IPv4, IPv6, MPLS, QoS |
| Power | 120W | 250W | 400W | 400W | 450W |
| Power Source | AC Power Supply / DC Power Supply / Redundant | DC Power Supply with Redundancy | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / Redundant | Redundant AC Power Supply |
| Product Name | 4OC3X/ATM-IR-SC Secure Modular Router | 12000/10-DC-PEM | 12000/4 Enterprise Router | 12416/320 Modular Enterprise Router | 12000/16 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Web UI / CLI / SNMP | SNMP, SSH, HTTPS | SNMP, NETCONF, REST API | SSH, Telnet, SNMP, HTTPS | SSH, Telnet, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / MPLS / Static Routing | OSPF / BGP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / Static Routing |
| Speed/Capacity | Gigabit | 10gb | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | Yes | Yes | Yes |
| Throughput Capacity | 2 Gbps | 10Gbps | 10 Gbps | 2 Gbps | 40 Gbps |
| Use Case | Enterprise / Industrial | Enterprise | Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 4 WAN | 2 WAN | Modular WAN |
| Weight | 15 lbs | 35 lbs | 35 lbs | 25 lbs | 75 lbs |
| Width | 17 inches | 17 inches | 17 inches | 18 inches | 17.5 inches |
| Wireless Support | No | No | No | No | No |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Perfect OC3 module for our edge termination. It handles varied traffic types with professional stability and zero configuration headaches. Highly satisfied.
Highly flexible interface. The Eng 3 architecture provides the steady performance required for our metropolitan deployments. Performance is rock solid.
Excellent ROI. This module allows us to maximize our slot density in the 12000 chassis while maintaining reliable ATM services.
Professional grade modularity. The card is robust, easy to manage, and provides consistent throughput during peak traffic hours. Great quality.
Steady and dependable. This OC3 module has been a staple in our network for delivering high-speed IP over ATM services.
The 4OC3X/ATM-IR-SC is a high-performance network interface card featuring four OC3/STM1 ports, an ATM Engine Level 3, and 512 MB of onboard memory for scalable bandwidth and low-latency cell processing.
Key features include quad OC3/STM1 fiber ports, ATM Engine 3 for hardware-accelerated cell switching, 512 MB default buffer memory, SC connectors, up to 155 Mbps per port, QoS and traffic-shaping support.
Power down the chassis, insert the 4OC3X/ATM-IR-SC into a compatible PCI slot, secure the bracket, connect SC‐terminated fiber cables, then power up and verify detection in the network OS.
Each OC3/STM1 interface delivers up to 155.52 Mbps of full-duplex throughput, providing an aggregate bandwidth of 622.08 Mbps across all four ports.
ATM Engine 3 provides advanced cell header processing, hardware-based classification, and jitter reduction, offloading central CPU resources for improved overall system performance.
The 512 MB onboard buffer optimizes burst handling, supports large routing tables, enhances Quality of Service by smoothing traffic, and improves overall cell‐switching efficiency.
It supports ATM UNI 3.1/4.0, IMA, PPP over ATM, Frame Relay over ATM, GFP, and standard OAM functions for comprehensive ATM network integration.
Yes, it interoperates with any OC3/STM1-compliant router, switch, optical transport platform, or ATM network element from leading vendors.
Use your network OS CLI or GUI to assign port identifiers, set VPI/VCI values, define ATM PVCs or SVCs, and enable SC interface settings according to vendor guidelines.
The 4OC3X/ATM-IR-SC draws 12 W at 3.3 V DC and requires a host chassis that provides compliant PCI power rails.
Maintain ambient temperatures between 0 °C and 50 °C, relative humidity 5%–85% non-condensing, and vibration within standard telecom rack tolerances.
Yes, it supports hot-standby failover using standard ATM redundancy protocols and can be configured for link aggregation across multiple OC3/STM1 ports.
Monitor traffic using SNMP MIB‐II counters, ATM MIBs, or your network OS’s CLI/GUI tools to view per-port and per-VCI cell statistics in real time.
The card includes a one-year limited hardware warranty, with optional extended support plans offering advanced hardware replacement, firmware updates, and 24/7 technical assistance.
Perform firmware upgrades via the host’s loader utility over the serial console or network management interface, following the vendor’s published upgrade procedure.
It is ideal for carrier backhaul, enterprise WAN aggregation, VoATM, video distribution, Metro-Ethernet uplinks, DSLAM backhaul, and legacy ATM network integration.