Smoke and Fire Compliant Railway Connectors

Designed for on-board or on-ground TCMS (Train Control Monitoring System) and TIMS (Train Information Management System) applications, the MSG 3U connector by Esterline Connection Technologies - SOURIAU complies with EN 45545, the most stringent smoke and fire standard. It is one of the few connectors on the market that have been specially developed for 3U racks. Already adopted by several rail-equipment manufacturers, the MSG 3U is currently being employed in a large number of projects and will be presented at:InnoTrans (Booth 216 Hall 12) and APTA (Booth 1701)The new MSG 3U connector developed by Esterline Connection Technologies - SOURIAU offers many advantages.

The main distinguishing feature of the MSG 3U is its high reliability. The result of 20 years of experience gained by Esterline Connection Technologies - SOURIAU's teams in rack connections for railway applications in Japan, the MSG 3U is designed to meet equipment miniaturization requirements and fit better in 3U racks.

Not only is the MSG 3U small, it is shielded inside a metal hood on the plug and receptacle sides for full protection against electromagnetic interference and signal degradation. 

MSG3U is available in 3 layouts: with 29 and 41 standard contacts and with up to five Quadrax Ethernet contacts. The Quadrax version can transmit signals at speeds of up to 100 Mbps and the design allows users to select grounded or ungrounded contacts.

Its quick, tool-less locking/unlocking system and front accessibility are perfect for night-time maintenance jobs requiring minimal time without disrupting train service.

The many commercial successes of the MSG 3U on Japan's railway networks, among the world's most demanding in terms of reliability, demonstrate just how much the connector can do.


25 Grumbacher road


PA 17402

Rhonda SHAW

Phone: 1 866-768-7428

Fax: 1 717-505-5953

Esterline Connection Technologies



Phone: +33 1 30 84 77 50

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