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3Com 655-0040-03 NBX 100 Digital T1 Line Card
- Digital T1 Line Card for 3Com NBX 100.
- Connects to the Public Switched Telephone Network (PSTN).
- Provides T1 interface (24 channels).
- Supports ISDN PRI (Primary Rate Interface).
- Enables digital voice trunking.
- Facilitates integration with traditional telephone lines.
- Designed for voice communication systems.
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Product Overview
The 3Com 655-0040-03 is a NBX 100 Digital T1 Line Card. This card is designed to connect the 3Com NBX 100 phone system to the Public Switched Telephone Network (PSTN) via a T1 interface, enabling digital voice communication and integration with traditional telephone lines.
Technical Information
| Product Type | Line Card |
| Interface | T1 (24 Channels) |
| Compatibility | 3Com NBX 100 |
Additional Specifications
| Protocol | ISDN PRI |
| Function | Digital Voice Trunking |
Product Description
The 3Com 655-0040-03 is a specialized line card designed specifically for the 3Com NBX 100 telephony platform. Its primary function is to provide a digital connection to the Public Switched Telephone Network (PSTN) through a T1 interface. A T1 line offers a digital transmission system capable of carrying up to 24 channels of voice or data simultaneously, making it a standard for business-grade telephone connectivity in North America and Japan. This card enables the NBX 100 system to interface with the PSTN using ISDN Primary Rate Interface (PRI) signaling. ISDN PRI is a telecommunications standard that utilizes multiple B (bearer) channels for voice or data and one D (delta) channel for signaling and control. By supporting this standard, the 655-0040-03 allows the NBX 100 system to establish and manage multiple simultaneous phone calls over a single T1 connection, effectively acting as a digital voice trunk. Installation of this T1 line card allows businesses to leverage their existing T1 infrastructure for voice communications, integrating their IP-based NBX 100 system with the traditional telephone network. This facilitates features such as direct inward dialing (DID), efficient call routing, and cost-effective trunking. The 3Com 655-0040-03 is a crucial component for businesses looking to connect their NBX 100 phone system to the wider telephone network for reliable and scalable voice services.
