Bluebell Opticom Ltd.

 
BB610T 6 Channel Balanced AES/EBU Digital Audio Multiplexer AES/EBU pdf

bb610t

The BB610T is a 1RU sub rack device for the transmission of six independent synchronous or non-synchronous balanced or unbalanced AES digital audio signals over a single fibre optic
cable. All six inputs are buffered then converted to an I²S data format. There is a genlocking facility available. The data channels are multiplexed on to a single high speed databus then converted to an optical data stream.

XLR connectors on the front of the unit provide simple and easy connectivity, particularly for outside broadcast or live event applications. An unbalanced 75ohm BNC version is also available.

All Bluebell products are designed to retain maximum integrity of the signal path offering excellent jitter free optical transport. Careful attention has been paid to reduce thermal runaway, eliminating the need for forced air cooling as fan failure and overheating is the most common cause of failure in modern electronic systems.

The BB610T is available in Multimode and Singlemode variants to suit any fibre application. CWDM variants are also available allowing up to 48 digital audio channels to be carried on a single fibre. It can also be used to combine multiple multistandard video and audio formats
unidirectionally or bidirectionally on one single fibre.

The BB610T is contained in a 1RU 19" rack-mounting frame with integral power supply.

Schematic Diagram

schematic

Specifications for each channel
Electrical Input
Connector Balanced XLR or BNC (Depending on model)
Number 6 x Balanced AES Audio or
6 x Unbalanced AES Audio
Input Imp 110 Ohm XLR
75 Ohm BNC
Format Input level compliant with AES3
Transformer coupled
Resolution 24 bit
Data Rate 6.144 MB/s
Timing Interchannel timing on input < 1.25 us
System Gain 0 dB, nominal +/- 0.5 dB
Bandwidth +/-0.25 dB, < 20 Hz to > 20 kHz
Noise ref < -90 dB p-p weighted full scale
AES Ref Input Hirose SR30
Optical Output
Connector* 1 x FC/PC, ST or SC
See Ordering Information
Optical Power -15 dBm @ 1310 nm multimode
-6 dBm @ 1310 nm singlemode
-6 dBm @ 1510 nm
General card specifications
Depth: 250 mm
Width: 19"
Height: 1RU
Weight: 2 kg
Operating Temp: -30 to +70 ºC
Power: 6 W
Signal detect: Power on LED
Oscillator lock LED
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
Ordering Information
BB610R/M/75/1RU Multimode 6-Channel AES Digital Audio Receiver with ST connector. 75 Ohm BNC Output
BB610R/S/75/1RU Singlemode 6-Channel AES Digital Audio Receiver with FC connector. 75 Ohm BNC Output
BB610R/M/110/1RU Multimode 6-Channel AES Digital Audio Receiver with ST connector. 110 Ohm XLR Output
BB610R/S/110/1RU Singlemode 6-Channel AES Digital Audio Receiver with FC connector. 110 Ohm XLR Output