Cholumikizira cha ST chili ndi nyumba yamtundu wa bayonet ndipo chitsulo chodzaza ndi masika chimakhala ndi ulusi.Amapezeka m'mitundu yambiri komanso ma single-mode.Ma adapter a simplex okwera mopingasa ndi duplex amapezeka ndi nyumba zachitsulo, ndi kusankha kwa phosphor bronze kapena zirconia split sleeve.ST ndi imodzi mwamibadwo yakale yolumikizira, koma imagwiritsidwabe ntchito kwambiri pama network a multimode, kuphatikiza ma LAN a nyumba ndi masukulu.