BC620T

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Description

BC620T 8 Channel Balanced Analogue Audio Multiplexer pdf icon

The BC620T provides transmission of multiple channels of analogue line level audio over one optical fibre. All inputs are buffered then converted using full 24 bit A/D conversion then multiplexed onto a single optical data stream.

The BC620T is particularly suited for multichannel audio transport and applications that require the audio to be carried independently to video or embedded audio signals.

All Bluebell cards are designed to retain maximum integrity of the signal path offering excellent jitter free optical transport. The BC620T is available in multimode, singlemode, WDM and CWDM variants to suit any fibre application.

The BC620T can be used with a BC630R allowing analogue inputs to feed AES outputs.

The BC620T occupies a single slot in the BC100-3RU 19″ rack-mounting frame which can hold up to 15 single slot cards. Some BC Series processing cards have dual functionality allowing 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 BC620T can be housed in an individual rugged enclosure.

Schematic Diagram
schematic End panel
Specifications for each channel
Electrical Input Audio
Connector 26-way D connector
Impedance 24 kOhm differential input
Bandwidth 20 Hz to 20 kHz +/- 0.25 dB
System Gain 0 dB, nominal +/- 0.5dB
Format Input level +24 dBu Maximum
Ref 1 mW into 600 Ohm
Number 8 x Balanced Line Level Analogue Audio
Noise ref < -90 dB p-p weighted full scale
Optical Output
Connector * 1 x female LC
plus secondary optical output
Wavelength 850 nm, 1310 nm, 1550 nm, CWDM
See Ordering Information
Optical Power -2 dBm @ 1310 nm (typical)
-2 dBm @ 1510 nm (typical)
0 dBm @ CWDM (typical)
General card specifications
Depth: 60 mm
Width: 20 mm 4TE
Height: 129 mm (3RU)
Weight: 100 g
Operating Temp: -30 to +70 ºC
Power: 3 W
Signal detect: LED on for loss of signal
No of slots: 1
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
Ordering Information
BC620T/M Multimode Optical Transmitter Card for 8 x Analogue Audio Signals.
BC620T/S/13 Singlemode Optical Transmitter Card for 8 x Analogue Audio Signals (1310nm).
BC620T/S/15 Singlemode Optical Transmitter Card for 8 x Analogue Audio Signals (1550nm).
BC620T/S/CWDM Singlemode Optical Transmitter Card for 8 x Analogue Audio Signals
(Dedicated CWDM Tuned Laser, Wavelength to suit ITU Grid Spacing – see CWDM Ordering Matrix).
All versions LC connectors as standard. Contact the Sales Office to discuss alternatives.
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. Includes Dual Redundant Power Supplies. Optional Network Monitoring.
BB110 Single Slot Chassis with Universal Mains Power Supply
BB120

Triple Slot Chassis with Universal Mains Power Supply