The BC720 is a transceiver card enabling the transmission and reception of 4 independent GPIO signals plus 4 RS232 or RS422/485 level signals via an optical fibre cable using two independent wavelengths. The 4 GPIO input signals are TTL level inputs with the 4 GPIO outputs provided via an isolated relay contact. The BC720 will also operate in mixed mode enabling RS232 to RS422/485 links, thus eliminating the need for external mode converters. All Bluebell cards are designed to maintain maximum signal path integrity, offering excellent jitter-free optical transport. The BC720 is available in multimode and single-mode versions to suit any fibre application. The BC720 occupies a single slot in the 19" rack-mount BC100-3RU chassis which can accommodate up to 15 single-slot cards. This dual functionality allows transmission or reception of up to 30 video channels from a single 3RU chassis. Signal and card monitoring is performed via SNMP monitoring in the BM101 network card. Alternatively, GP-Output alarms can be triggered via the BM100 module. For standalone applications, the BC720 can be housed in a robust individual enclosure. Specifications