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SPA-4XOC3-ATM
4-port OC-3c/STM-1 ATM Shared Port Adapter
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SPA-4XOC3-ATM is a high-performance ATM and WAN module engineered to deliver reliable OC-3 connectivity, providing four optical ports that support data rates of 155Mbps per channel. Designed with fiber-optic LC connectors, this module offers seamless integration with routers, switches, and other network devices while supporting essential protocols such as ATM and TCP/IP.
Optimized for data center expansion and upgrading server network interfaces, the SPA-4XOC3-ATM features a PCIe form factor for straightforward installation and robust performance. Its industrial-grade design ensures reliable operation under demanding conditions, making it an ideal choice for telecommunications infrastructure and high-speed network applications.
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An Internet Service Provider deploys the SPA-4XOC3-ATM-4-port OC-3c/STM-1 ATM Shared Port Adapter on a Cisco ASR 9000 series router to terminate multiple OC-3c/STM-1 ATM circuits at the network edge. By leveraging ATM sub-interfaces for voice, video and data, the provider achieves granular traffic segmentation, end-to-end QoS and SLA assurance across its backbone. The solution delivers up to 622 Mbps per port, simplifies multi-service convergence and drives 24×7 reliability for high-availability carrier networks.
A multinational bank integrates the SPA-4XOC3-ATM-4-port OC-3c/STM-1 ATM Shared Port Adapter into its data-center core to aggregate diverse ATM links from global branch offices. The adapter’s hardware-based traffic shaping and priority queuing ensure sub-millisecond latency for real-time transaction processing and secure data transfer. This deployment streamlines bandwidth utilization, enforces strict QoS policies and maintains regulatory compliance for financial data confidentiality and integrity.
A regional hospital leverages the SPA-4XOC3-ATM-4-port OC-3c/STM-1 ATM Shared Port Adapter on a resilient Cisco 7600 router to establish redundant ATM circuits to its off-site disaster-recovery facility. With transparent ATM PVC provisioning and circuit-level failover, the hospital achieves continuous data replication of electronic health records (EHR). The solution guarantees business continuity, accelerates RTO/RPO targets and enhances patient-care assurance under stringent healthcare compliance standards.
To get the detailed certification, please go to the Compliance Center.
| SPA-4XOC3-ATM |  SPA-10X1GE |  WS-X6148-FE-SFP |  WS-X6196-RJ-21 |  WS-SVC-IDS2-BUN-K9 | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Network Module | Network Module / Network Card | Network Module | Network Module / Network Card |
| Module Type | ATM / WAN Module | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 155Mbps | 1G | 100Mbps | 10G | 10Gbps |
| Connector Type | LC (Fiber-Optic) | RJ-45 | SFP | RJ-45 | SFP+ |
| Supported Protocols | ATM / TCP/IP | TCP/IP | TCP/IP, Ethernet | TCP/IP, iSCSI | TCP/IP |
| Form Factor | PCIe | PCIe | Modular | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Arista | Routers / Switches / Servers | Cisco Catalyst Series | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Max Speed | OC-3 (155Mbps) | 1Gbps | 100Mbps | 10Gbps | 10Gbps |
| Supported Features | ATM switching / QoS / Hot-swappable | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Power Consumption | 5W | N/A | 25W | 8W | 15W |
| Interface Ports | Fiber-Optic | Ethernet | SFP | Ethernet | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | SPA-4XOC3-ATM | SPA-10X1GE | WS-X6148-FE-SFP | WS-X6196-RJ-21 Network Module | WS-SVC-IDS2-BUN-K9 |
| Height | N/A | N/A | N/A | 1.0 inches | 1.5 inches |
| Width | N/A | N/A | N/A | 3.0 inches | 3.5 inches |
| Depth | N/A | N/A | N/A | 7.0 inches | 0.5 inches |
| Weight | N/A | N/A | N/A | 1.2 lbs | 1.2 lbs |
The SPA-4XOC3-ATM module has been a great addition to our network. It offers stable, high-speed ATM connections and supports our growing data transfer needs.
This adapter works seamlessly with our existing infrastructure. The SPA-4XOC3-ATM ensures reliable and fast ATM connectivity with minimal configuration.
We rely on the SPA-4XOC3-ATM for high-speed ATM connections. It's been a solid performer, offering stable and uninterrupted data transfer.
The SPA-4XOC3-ATM provides excellent performance and high-speed data transmission. It integrates smoothly with our network and ensures reliable service.
The SPA-4XOC3-ATM module has been perfect for our network. It delivers fast and reliable ATM connectivity, ensuring smooth data transfer.
The SPA-4XOC3-ATM is a four-port OC-3c/STM-1 ATM Shared Port Adapter for Cisco modular routers, providing high-performance 155 Mbps ATM connectivity per port.
It is supported on Cisco 1800, 2800, and 3800 Series Integrated Services Routers equipped with a SPA slot and compatible IOS feature set.
The adapter features four OC-3c/STM-1 ports, each delivering up to 155 Mbps full-duplex throughput for ATM services.
It supports permanent virtual circuits (PVCs), switched virtual circuits (SVCs), AAL1/AAL5, traffic shaping, cell loss priority (CLP), and OAM cell functions.
Yes, each port supports up to 32 PVCs and dynamic SVCs, allowing flexible ATM network topologies.
It supports AAL1 for constant bit rate and AAL5 for data services, including RFC 1483 bridged and routed IP encapsulation.
Insert the adapter into a compatible SPA slot, secure it with the captive screw, and configure ports via the IOS CLI using slot-specific commands.
Yes, it supports hot insertion and removal without disrupting other modules or services on the router.
It draws up to 20 W from the router backplane and operates between 0–55 °C (32–131 °F) with humidity up to 90% non-condensing.
Yes, it offers per-VC traffic shaping, policing with CLP prioritization, and hardware-based cell buffering for granular QoS control.
Yes, it is compatible with Cisco high-availability protocols such as HSRP and VRRP, enabling seamless failover.
Cisco provides a limited lifetime hardware warranty and offers Smart Net Total Care for 24/7 technical support, software updates, and advance hardware replacement.
Use IOS commands like 'show controllers atm <slot/port>' and 'show platform hardware slot <slot> histo' to verify status, check LED indicators, and consult the troubleshooting guide.
Access Cisco’s website to download the SPA-4XOC3-ATM Data Sheet and the ATM Shared Port Adapter Configuration Guide for detailed reference.
The adapter requires Cisco IOS Release 12.3(7)T or later with the Advanced Enterprise Services or higher feature set.
Contact a Cisco authorized reseller and reference SKU SPA-4XOC3-ATM, specifying any required accessories or replacement modules.
Yes, it is fully compliant with ANSI T1.105 for OC-3c and ITU-T G.957 for STM-1, ensuring interoperability in North American and international ATM networks.