*rectangle 0 0 60 100
solidpen 255 0 0  0
solidbrush 255 215 215 0
moveto -20 80
lineto 10 80
moveto -20 20
lineto 5 20
lineto 5 75
lineto 10 75
ellipse 10 65 50 90
*
solidpen 0 255  0  0
solidbrush 215 255 215 0
moveto 80 20
lineto 50 20
moveto 80 80
lineto 55 80
lineto 55 25
lineto 50 25
*
ellipse 10 10 50 35
*
solidpen 0 0 255 0
polybezier 15 0 (25,20)     (25,80)   15 100
polybezier 25 0 (30,20)     (30,80)   25 100
polybezier 35 0 (30,20)     (30,80)   35 100
polybezier 45 0 (35,20)     (35,80)   45 100
*
label -5 50 Tx
label 70 50 Rx