. A modular adapter is typically used to traverse log distances over a 8 conductor phone line / network cable. CableWholesale Modular Adapter, Red, DB9 Female to RJ45 Jack - 1 x 9-pin DB-9 Serial Female - 1 x 8-pin RJ-45 Network Female - Red 31D1-1740RD The leads are "flying leads" to provide you with more leeway when inserting the pins.
A modular adapter is typically used to traverse log distances over a 8 conductor phone line / network cable.By its very nature the pin outs are user configurable to match any needs you may have..