The term fiber-optic transmission system is identified in base64 scheme by the sequence ZmliZXItb3B0aWMgdHJhbnNtaXNzaW9uIHN5c3RlbQ==, while the MD5 signature is equal to 91eb2f01926953eafa7f296e179867c8. The ASCII encoding of fiber-optic transmission system in hexadecimal notation is 66696265722d6f70746963207472616e736d697373696f6e2073797374656d.