Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
3Com 3CB9NAL1S3MC CoreBuilder 4 x Ports OC-3/STM-1 ATM Interface Module
- 4 x OC-3/STM-1 ports
- ATM (Asynchronous Transfer Mode) Interface Module
- Designed for 3Com CoreBuilder series switches
- Supports ATM networking protocols
- High-speed WAN connectivity
- Modular design for flexibility
3CB9NAL1S3MC isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Product Type
- Interface Module
- Ports
- 4 x OC-3/STM-1
- Interface Type
- ATM
- Compatibility
- 3Com CoreBuilder Series
Product details
The 3Com 3CB9NAL1S3MC is an ATM (Asynchronous Transfer Mode) interface module for the CoreBuilder series switches. It provides 4 x OC-3/STM-1 ports, enabling high-speed connectivity for ATM networks or for integrating ATM services into an IP-based infrastructure.
Technical Information
| Product Type | Interface Module |
| Ports | 4 x OC-3/STM-1 |
Additional Specifications
| Interface Type | ATM |
| Compatibility | 3Com CoreBuilder Series |
Description
The 3Com 3CB9NAL1S3MC is a specialized interface module designed for the 3Com CoreBuilder series of high-performance switches. This module specifically addresses the need for Asynchronous Transfer Mode (ATM) connectivity, offering four ports that operate at the OC-3/STM-1 rate. OC-3 (Optical Carrier 3) and STM-1 (Synchronous Transport Module 1) are standards for high-speed telecommunications, typically providing a data rate of 155.52 Mbps. This module is crucial for organizations that still utilize ATM networks for their Wide Area Network (WAN) or for specific service requirements. It allows the CoreBuilder switch to act as a gateway or an aggregation point for ATM traffic, enabling seamless integration with existing ATM infrastructure or providing connectivity to ATM-based services. The module supports the necessary ATM protocols and encapsulation methods required for reliable data transmission over ATM links. By providing these high-speed ATM interfaces, the 3CB9NAL1S3MC enhances the versatility of the CoreBuilder platform, allowing it to serve a wider range of networking needs, including those in telecommunications providers or large enterprises with legacy ATM deployments. Its modular nature ensures that it can be added or replaced as needed, supporting the evolving requirements of the network infrastructure.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for 3CB9NAL1S3MC.





