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Adtran EXPRESS-3000 Express 3000 2x Phone Ports 128Kb/s ISDN Modem
- ISDN modem technology
- 128Kb/s data transfer rate
- 2 x Phone Ports
- Supports digital communication
- High-speed connectivity
- Designed for business or advanced users
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Key specifications
See full specs ↓- Modem Type
- ISDN Modem
- Data Rate
- 128kb/s
- Interface
- ISDN (BRI)
- Ports
- 2 x Phone Ports
- Brand
- Adtran
Product details
The Adtran EXPRESS-3000 is an ISDN modem offering two phone ports and a data rate of 128Kb/s. It is designed for high-speed digital communication over ISDN lines.
Technical Information
| Modem Type | ISDN Modem |
| Data Rate | 128kb/s |
| Interface | ISDN (BRI) |
Additional Specifications
| Ports | 2 x Phone Ports |
| Brand | Adtran |
Description
The Adtran EXPRESS-3000 is a specialized modem designed to leverage Integrated Services Digital Network (ISDN) technology for high-speed digital data transmission. Unlike traditional analog modems that operate over phone lines, ISDN uses digital signals, offering significantly faster and more reliable connections. The EXPRESS-3000 achieves a data rate of 128Kb/s, which was considerably faster than the 56Kb/s offered by analog modems, making it suitable for bandwidth-intensive applications like early video conferencing, large file transfers, and faster internet access. The inclusion of two phone ports suggests that the device can function as a pass-through for analog telephone devices, allowing voice calls to be made over the ISDN line concurrently with data transmission, or potentially supporting two separate ISDN B-channels for increased bandwidth or simultaneous connections. This dual-channel capability is a hallmark of Basic Rate Interface (BRI) ISDN. Adtran is a well-respected manufacturer of networking equipment, and the EXPRESS-3000 would have been a robust solution for businesses or power users requiring a more advanced communication link than standard dial-up. Its implementation marked a step towards the digital communication infrastructure that would eventually lead to broadband technologies like DSL and fiber optics.
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.
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