What is "t1"

n. A type of serial line that transmits data at a rate of 1544 (or 1536) kilobits per second.

T1, T01, T.1 or T-1 may refer to:

T1 is a Paralympic cycling classification. It is for wheelchair athletes with severe locomotive dysfunctions, and insufficient balance to use a regular bicycle. The class includes a number of different disability types including cerebral palsy. The class only competes in road events.

The UCI recommends this be coded as MT1 or WT1.

T1 Kabataş - Bağcılar tram line is a tramline of the Istanbul Tram and is operated by Metro Istanbul. It runs south from Kabataş to Bağcılar via Eminönü, with a total length of .

The first section of the T1 line opened between Aksaray and Beyazıt on 13 June 1992 and was later extended first to Topkapı and Zeytinburnu, and later to Eminönü. On 29 June 2006, the Eminönü-Kabataş extension was opened, making the transfer to Kabataş–Taksim funicular possible. On 3 February 2011, it was fused with the T2 line that was opened in 2006 between Zeytinburnu and Bağcılar by converting T2 line's stations to low-floor tram stations.