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