SPECIFICATION NO. : RDSO SPN 147/2005

RDSO APPROVED. : YES

DESCRIPTION :

The Universal Fail Safe Block Interface (UFSBI) Equipment is meant for interfacing various signaling information of a block instrument at one end of a block section and exchanging them with the block interface equipment at the other end through a digital transmission equipment (optical or radio) ensuring high degree of safety and availability. Safety of a block instrument is ensured by a foolproof logic sequence and relay interlocking. Safety for the Block Interface Equipment means it must correctly acquire the signal and reproduce it at the other end without any error. In case of any failure, it is detected and the system is lead to a fail -safe state.