Name:
SPA-4XOC3-ATM
- Description:
- 4-port OC-3c/STM-1 ATM Shared Port Adapter
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SPA-4XOC3-ATM Overview
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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SPA-4XOC3-ATM Specifications
| Product Type | Network Module / Network Card |
| Module Type | ATM / WAN Module |
| Data Rate | 155Mbps |
| Connector Type | LC (Fiber-Optic) |
| Supported Protocols | ATM / TCP/IP |
| Form Factor | PCIe |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco / Juniper / Arista |
| Max Speed | OC-3 (155Mbps) |
| Supported Features | ATM switching / QoS / Hot-swappable |
| Power Consumption | 5W |
| Interface Ports | Fiber-Optic |
| Expansion Slots | N/A |
| Product Name | SPA-4XOC3-ATM |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
SPA-4XOC3-ATM Use Case
Carrier-Grade Edge Routing with SPA-4XOC3-ATM-4-port OC-3c/STM-1 ATM Shared Port Adapter
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.
Enterprise WAN Aggregation for Financial Institutions
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.
Disaster Recovery Connectivity for Healthcare Networks
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.
Quality Certifications
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Product Comparison Table
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| Compatibility | Cisco / Juniper / Arista | Cisco, Juniper, Arista, Dell, HP | Cisco Catalyst Series | Routers / Switches / Servers | Cisco / Juniper / Arista / Dell / HP |
| Connector Type | LC (Fiber-Optic) | RJ-45 | SFP | RJ-45 | SFP+ |
| Data Rate | 155Mbps | 10G | 100Mbps | 1G | 10Gbps |
| Depth | N/A | 7.0 inches | N/A | N/A | 0.5 inches |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Form Factor | PCIe | PCIe | Modular | PCIe | PCIe |
| Height | N/A | 1.0 inches | N/A | N/A | 1.5 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | Fiber-Optic | Ethernet | SFP | Ethernet | Ethernet |
| Max Speed | OC-3 (155Mbps) | 10Gbps | 100Mbps | 1Gbps | 10Gbps |
| Module Type | ATM / WAN Module | Ethernet | Ethernet | Ethernet | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 5W | 8W | 25W | N/A | 15W |
| Product Name | SPA-4XOC3-ATM | WS-X6196-RJ-21 Network Module | WS-X6148-FE-SFP | SPA-10X1GE | WS-SVC-IDS2-BUN-K9 |
| Product Type | Network Module / Network Card | Network Module | Network Module / Network Card | Network Module | Network Module / Network Card |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| 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 |
| Supported Protocols | ATM / TCP/IP | TCP/IP, iSCSI | TCP/IP, Ethernet | TCP/IP | TCP/IP |
| Weight | N/A | 1.2 lbs | N/A | N/A | 1.2 lbs |
| Width | N/A | 3.0 inches | N/A | N/A | 3.5 inches |
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Questions & Answers
Q
What is the SPA-4XOC3-ATM adapter?
A
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.
Q
Which Cisco routers support SPA-4XOC3-ATM?
A
It is supported on Cisco 1800, 2800, and 3800 Series Integrated Services Routers equipped with a SPA slot and compatible IOS feature set.
Q
How many ports and what speeds are supported?
A
The adapter features four OC-3c/STM-1 ports, each delivering up to 155 Mbps full-duplex throughput for ATM services.
Q
What ATM features does this adapter provide?
A
It supports permanent virtual circuits (PVCs), switched virtual circuits (SVCs), AAL1/AAL5, traffic shaping, cell loss priority (CLP), and OAM cell functions.
Q
Can I configure multiple virtual circuits per port?
A
Yes, each port supports up to 32 PVCs and dynamic SVCs, allowing flexible ATM network topologies.
Q
Which encapsulation formats are supported?
A
It supports AAL1 for constant bit rate and AAL5 for data services, including RFC 1483 bridged and routed IP encapsulation.
Q
How do I install SPA-4XOC3-ATM in my router?
A
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.
Q
Is the adapter hot-swappable?
A
Yes, it supports hot insertion and removal without disrupting other modules or services on the router.
Q
What are the power and environmental requirements?
A
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.
Q
Does the adapter support Quality of Service features?
A
Yes, it offers per-VC traffic shaping, policing with CLP prioritization, and hardware-based cell buffering for granular QoS control.
Q
Can I use SPA-4XOC3-ATM in redundant router configurations?
A
Yes, it is compatible with Cisco high-availability protocols such as HSRP and VRRP, enabling seamless failover.
Q
What warranty and support options are available?
A
Cisco provides a limited lifetime hardware warranty and offers Smart Net Total Care for 24/7 technical support, software updates, and advance hardware replacement.
Q
How do I troubleshoot adapter issues?
A
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.
Q
Where can I find technical documentation?
A
Access Cisco’s website to download the SPA-4XOC3-ATM Data Sheet and the ATM Shared Port Adapter Configuration Guide for detailed reference.
Q
What IOS software versions are supported?
A
The adapter requires Cisco IOS Release 12.3(7)T or later with the Advanced Enterprise Services or higher feature set.
Q
How do I order spare modules or parts?
A
Contact a Cisco authorized reseller and reference SKU SPA-4XOC3-ATM, specifying any required accessories or replacement modules.
Q
Does the adapter support both OC-3c and STM-1 standards?
A
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.