GLYPH<SM590000> Shuttle station rails inside Sx4 frame, as shown in Figure 13-15. GLYPH<SM590000> Shuttle span and covers, as shown in Figure 13-16. 376  IBM Tape Library Guide for Open Systems Figure 13-16 Span and covers Figure 13-15 Station tracks inside Sx4 frame Tracks that the car moves up and down on Station fiducial