Global Tech GT-SDH-155A 63E1 SDH is the compact STM-1 level Synchronous Digital Hierarchy (SDH) transmission system compatible with ITU-T standard. It is designed as a modular system with two 155.520Mb/s optical interfaces to provide an ultra-compact, cost-effective and high capacity platform. It provides fully cross-connect between all tributaries, and can be used as Terminal Multiplexer (TM) or an Add-Drop-Multiplexer (ADM) to build point-to-point, ring and chain transmission network..

* Achieve Multiplexing from 63 E1 to 2 STM-1 optical interfaces 

* 1U height, 19 Inch width standard

* Service interface

* Two STM-1 optical interfaces, SFP optical module (LC connector)

* Maximum 63 E1 interfaces compliant with ITU-T G.703, optional unbalanced/ balanced interface