
Ericsson RPM603385/3000 X.21 interface cable for TAU2680 transmission equipment.
The Ericsson RPM603385/3000 is an X.21 interface cable designed for use with the TAU2680 transmission access unit. This cable provides the physical connectivity required for X.21 serial data communications between the TAU2680 and external network equipment or data terminal devices.
The TAU2680 is part of Ericsson’s transmission and access portfolio, typically deployed in telecommunications networks for multiplexing and data transport applications. The X.21 interface standard supports synchronous serial communication, commonly used in legacy WAN and leased line environments.
This is a legacy product associated with Ericsson’s earlier transmission equipment range. While no longer in active production, these cables remain essential for maintaining and supporting existing TAU2680 installations in operational networks.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

| Manufacturer | Ericsson |
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| Platform | RBS 2000 Series |
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| Manufacturer | Ericsson |

| Platform | MX-ONE |
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| Manufacturer | Ericsson |

| Platform | Ericsson AXE |
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| Manufacturer | Ericsson |

| Platform | Power M35 |
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| Manufacturer | Ericsson |

| Platform | Ericsson Radio Base Station |
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| Manufacturer | Ericsson |

| Platform | TAU2680 |
|---|---|
| Manufacturer | Ericsson |
| Key Features | X.21 interface connectivity; Designed for TAU2680 transmission unit; Synchronous serial communication support |
|---|---|
| Applications | Transmission access unit connectivity; Legacy WAN infrastructure support; Leased line network maintenance |
| Compatibility | Ericsson TAU2680 |
| Specifications | X.21 interface standard; Serial data cable |
| Platform | TAU2680 |
| Manufacturer | Ericsson |
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