procurement of material for maintenance scada system installed at 220 kv substation harhua , supply of fiber optic patch cord of c2g 5m mtrj to st duplex 62 . 5/125 multimode fiber patch cable ( orange ) , supply of fiber optic patch cord of c2g 10m mtrj to st duplex 62 . 5/125 multimode fiber patch cable ( orange ) , supply of fiber optic multimode patch cords for lc-lc ports ( 5 meters ) , supply of fiber optic multimode patch cords for lc-lc ports ( 10 meters ) , supply of armoured 62 . 5/125 multimode fiber optic cable ( 12 core ) for bus bar protection communication upto central unit . , supply of armoured 62 . 5/125 single fiber optic cable ( 12 core ) for sas architecture communication establishment . , supply of lan/cat-6 ethernet cable to connect server hmi . , splicing work for each core to make healthy scada communication ring system as per sas architecture at site . , supply of antivirus quick heel software and windows operating system .