Single-mode optical transceiver card for 4 bidirectional analogue audio signals (dedicated CWDM tuned laser, wavelength adapted to ITU grid spacing). LC connectors as standard. The BC625 enables bidirectional transmission of multiple analogue audio channels at line level over optical fibre. All inputs are buffered then converted using full 24-bit A/D conversion, then multiplexed onto a single optical data stream. The BC625 is particularly suited to multi-channel audio transport and applications requiring audio transport independent of embedded video or audio signals. All Bluebell cards are designed to maintain maximum signal path integrity, offering excellent jitter-free optical transport. The BC625 is available in multimode, single-mode, WDM and CWDM versions to suit any fibre application. The BC625 occupies a single slot in the BC100-3RU 19" chassis which can accommodate up to 15 single-slot cards. Some BC series processing cards have dual functionality enabling transmission or reception of up to 30 video channels from a single 3RU chassis. Signal and card monitoring is achieved via SNMP monitoring in the BM102 network card. For stand-alone applications, the BC625 can be housed in a robust individual enclosure. specifications