
Safe Checkout
Secure Payments
Fast Delivery
Order Today
Free Shipping
Across the US
Easy Returns
Hassle-Free
Adtran 1203153L2 Express 3000 Series 2x Phone Ports 128Kb/s ISDN Modem
- ISDN modem with 128 Kbps data rate
- Supports two B channels for simultaneous voice/data
- Integrated NT1 (Network Termination 1)
- RJ-45 interface for ISDN connection
- Supports PPP, Frame Relay, and other protocols
- Ideal for small office/home office (SOHO) environments
Click on Inquire to get latest price
Free U.S. Ground Shipping
Typically 1-2 handling + 3-7 transit days
Purchase orders accepted
For government, enterprise, data center, and small business customers.
Bulk Purchase Inquiry
Volume pricing and availability
Product Overview
The Adtran 1203153L2 is part of the Express 3000 Series, featuring 2 phone ports and a 128Kb/s ISDN modem. It is designed for high-speed digital data transmission.
Technical Information
| Product Series | Express 3000 |
| Modem Type | ISDN Modem |
| Data Rate | 128 Kbps |
Additional Specifications
| Phone Ports | 2 |
| Interface | RJ-45 (ISDN) |
| Integrated NT1 | Yes |
Product Description
The Adtran 1203153L2, a component of the Express 3000 Series, is an ISDN modem engineered for robust digital communication. It offers a data transmission rate of 128 Kbps, significantly faster than traditional dial-up modems, making it suitable for bandwidth-intensive applications. The device features two B channels, which can be bonded together for the full 128 Kbps data rate or used independently for simultaneous voice and data services, providing flexibility for small businesses and remote offices. This unit includes an integrated Network Termination 1 (NT1), simplifying installation by eliminating the need for an external NT1 device. The standard RJ-45 connector ensures compatibility with ISDN network interfaces. The Express 3000 Series is known for its reliability and performance, supporting various networking protocols such as PPP (Point-to-Point Protocol) and Frame Relay, allowing for seamless integration into existing network infrastructures. The Adtran 1203153L2 is an ideal solution for SOHO (Small Office/Home Office) environments or any location requiring reliable, high-speed digital connectivity for internet access, VPNs, or voice applications. Its ability to handle simultaneous voice and data traffic, combined with its digital nature, provides superior quality and speed compared to analog modems. This device represents a key piece of networking hardware for businesses transitioning to digital communication standards.


