ADTRAN 1200275L1 DSX-1 Bundle Network Interface Card is a plug‑in network interface module for ADTRAN chassis that adds a DSX-1 (T1) interface to the host system. Packaged as the DSX-1 Bundle option, it enables DSX-1 service termination and connectivity within the ADTRAN platform. The part number 1200275L1 identifies this specific module and it is designed for installation in compatible ADTRAN configurations.
