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USRobotics 64-003468-01 3Com Isdn Pro Ta Modem W/ Adapter Api-7595
- ISDN Terminal Adapter (TA)
- Provides digital data connectivity
- Supports ISDN BRI (Basic Rate Interface)
- Includes external power adapter
- Designed for high-speed digital communication
- Likely includes Ethernet or serial interface
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Product Overview
The USRobotics 64-003468-01, also known as the 3Com ISDN Pro TA Modem W/ Adapter API-7595, is an ISDN terminal adapter. It provides high-speed digital connectivity over ISDN lines.
Technical Information
| Device Type | ISDN Terminal Adapter (TA) |
| Interface | ISDN BRI (S/T or U interface) |
| Connectivity | Digital Data Transmission |
Additional Specifications
| Standards | ISDN (e.g., 2B+D channels) |
| Power | External AC Adapter (API-7595) |
| Brand Association | USRobotics / 3Com |
Product Description
The USRobotics 64-003468-01, identified as the 3Com ISDN Pro TA Modem with Adapter API-7595, is a specialized device known as an ISDN Terminal Adapter (TA). Unlike traditional analog modems, this TA is designed to connect to an ISDN (Integrated Services Digital Network) line, which offers higher-speed, digital communication capabilities over telephone lines. This makes it suitable for applications requiring faster and more reliable data transfer than standard dial-up modems could provide. The device facilitates digital data transmission, typically utilizing the Basic Rate Interface (BRI) of ISDN, which provides two 64Kbps 'B' channels for data and one 16Kbps 'D' channel for signaling. This allows for simultaneous voice and data transmission or higher aggregate data speeds. The inclusion of the API-7595 adapter indicates it comes with the necessary external power supply for operation. This ISDN TA would have been used to connect computers or networks to the internet or private networks via ISDN lines, offering a significant performance upgrade over 56K modems of the era. It likely features standard interfaces such as Ethernet or serial ports for connecting to user equipment. While ISDN has largely been superseded by broadband technologies like DSL and Cable, this device represents a key step in the evolution of digital telecommunications.
