{HEAD ~ These modules}, {TAIL ~ AFE} and DSP, may be found on a single universal line card 
{ HEAD ~ These modules } , { TAIL ~ AFE } and DSP , may be found on a single universal line card
HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH