Features
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BC710
Dual Circuit 4-wire Comms Optical Transceiver Analogue Audio
Description
Dual Circuit 4-wire Comms Optical Transceiver Analogue Audio The BC710 is a transceiver card for the transmission of two independent duplex audio signals over a single fibre optical cable. The BC710 provides two independent circuits for use in 4-wire comms systems. Each analogue audio input or output is converted via 24 bit converters to maintain maximum resolution for use in professional broadcast audio applications. All Bluebell cards are designed to retain maximum integrity of the signal path offering excellent jitter free optical transport. The BC710 is available in multimode and singlemode variants to suit any fibre application. The BC710 occupies a single slot in the BC100-3RU 19″ rack-mounting frame which can hold up to 15 single slot cards. This dual functionality allows up to 30 channels of video to be transmitted or received from a single 3RU frame. Signal and card monitoring is achieved through SNMP monitoring in the BM101 network card. Alternatively GP-Output alarms can be triggered via the BM100 module. For stand alone applications the BC710 can be housed in an individual rugged enclosure.
Schematic Diagram
Specifications
| Electrical Input/Output | |
| Connector | 9 way D sub-connector |
| Format | 20 Hz to 20 kHz +/- 0.25 dB distortion 0 dB system gain, 18 dBu ref 1 mW into 600 Ohm |
| Number | 4 x Balanced Line Level Analogue Audio |
| Optical Input/Output | |
| Connector* | 1 x female FC/PC, ST or SC See Ordering Information |
| Wavelength | ||||
| Input (nm) | Output (nm) | |||
| MM | SM | MM | SM | |
| Input 1,3 | 1300 | 1550 | 850 | 1310 |
| Output 2,4 | 850 | 1310 | 1300 | 1550 |
| See Schematic | |
| Optical Power | -15 dBm @ 850 nm -15 dBm @ 1310 nm multimode -6 dBm @ 1310 nm singlemode -6 dBm @ 1510 nm |
| Sensitivity | > – 3 dB to – 30 dBm |
| Max I/P power | > -1 dBm |
| General card specifications | |
| Depth: | 60 mm |
| Width: | 20 mm 4TE |
| Height: | 100 mm (3RU) |
| Weight: | 100 g |
| Operating Temp: | -30 to +70 ºC |
| Power: | 2.2 W |
| Signal detect: | LED on for loss of signal |
| Conformance | |
| EMI/RFI: | Complies with 89/336/EEC |
| Electrical: | Complies with EN 61000-6-1, EN61000-6-2 |
| Laser Safety | Complies with Class 1 laser product 24 CFR 1040.10 & 1040.11 |
| RoHS: | Complies with Directive 2002/95/EC |
| Warranty: | 5 years |
| * See Ordering Information The connector types specified below are supplied as standard. For alternative connectors please replace the last two suffices of the part number with the relevant type. Please contact the Sales Office before ordering. ST ST connector FC FC connector SC SC/PC connector |
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Ordering Information
| BC710M/ST | Multimode 4-Wire Comms Talkback to Optical Transceiver Card with ST connector (850/1300 nm) |
| BC710S/FC | Singlemode 4-Wire Comms Talkback to Optical Transceiver Card with FC connector (1310/1550 nm) |
| Universal Chassis and Power Supplies | |
| BC100-3RU | 19″ 3RU Chassis for up to 15 BCxxx Cards with optional Network Monitoring and
facility for Dual Redundant Power Supplies (not supplied). |
| BC100-3RU/48V | 19″ 3RU Chassis for up to 15 BCxxx Cards with optional Network Monitoring and facility
for Dual Redundant Power Supplies (not supplied). Fitted with 48V dc input. |
| BM100 | Network Monitoring Card with GPI Output on a SCSI Connector for Slot-16 |
| BM101 | Network Monitoring Card with Ethernet connection for Slot-16 |
| BC140 | Extender Card for BC100 3RU Chassis |
| PS65 | 90-250VAC Power Supply for BC100-3RU or BB100-3RU Chassis |
| BC160 | 19″ 1RU Chassis for up to 6 BCxxx Cards fitted with Dual Redundant Power Supplies. |
| BC110 | Single Slot Chassis with Universal Mains Power Supply |
| BC120 | Triple Slot Chassis with Universal Mains Power Supply |