RZBN-1
audio data recording system
Description
RZBN-1 cockpit voice and audio recording system
RZBN-1 is an onboard system for collecting and storing crew speech, cockpit sound and time-reference information during flight. Its records are intended for investigation of aviation accidents and incidents and for analysis of events in the cockpit. The system uses a protected solid-state recorder and is designed to preserve the latest two hours on each channel while avoiding the magnetic media and mechanical transport used in earlier recorders.
Full descriptionCollapse description
Recorded channels and synchronization
The system records three voice channels and one wider-band audio channel. Voice information covers the 150 to 3500 Hz range, while the cockpit sound channel extends to 6000 Hz. Time information is received through ARINC 429 or from the USS-16 interface unit, depending on the installation. This time reference allows recorded communications and ambient sound to be correlated with other flight data during analysis.
RZBN-1 system composition and readout
The standard installation includes the ZBN-RTT protected solid-state voice recorder, BUM-1 compact control unit, RA-ZBN-RTT mounting frame, Mi-1 mixer and MDM-5 microphones with UMP-1 preamplifiers or BMi-2 microphone units. The NUV-1 ground playback unit is used to read and process the recorded information but is not included in the onboard system. Required components and cable interfaces must be confirmed for each aircraft installation.
Protection, environment and aircraft use
RZBN-1 is intended for medium and heavy aircraft and operates from a 27 V DC aircraft network within the limits stated in Technical Details. The protected recorder is associated with TSO-C123A, ED-56A and ARINC 757 and is rated for severe shock, penetration, compression, fire, water and aviation-fluid exposure. Temperature, humidity, vibration and shock limits also apply to the system. These survivability values must not be transferred to unrelated blocks or substituted for the approved maintenance procedure.
Identification, certification and related equipment
An enquiry should specify RZBN-1 and identify whether the complete system or a particular block is required. The nameplate, frame, microphones, preamplifiers, connectors and documentation should be checked before installation. Related catalogue pages include MARS-BM and P-507M; the links do not imply interchangeability. More items are listed in the flight recorders and tape devices category. General background on the purpose and operation of this equipment class is available in the flight recorder reference article.
Technical details
- Product Type
- Onboard voice and audio data recording system
- Function
- Recording and preservation of speech and audio information
- Application / Where Used
- Aircraft voice and audio recording systems
- System / Installation Area
- Onboard flight data and voice recording system
- Part of System / Included in Set
- ZBN-RTT protected recorder; BUM-1 control unit; RA-ZBN-RTT mounting frame; Mi-1 mixer; MDM-5 microphones with UMP-1 preamplifiers or BMi-2 microphone units
All specificationsCollapse specifications
- Compatible Aircraft / Equipment
- Medium and heavy aircraft
- Operating Voltage
- 27 V DC (18 to 31 V)
- Power Consumption
- Not more than 8 W
- Recording Duration
- Last 2 h per channel
- Number of Voice Channels
- 3
- Number of Audio Channels
- 1
- Time Reference Channel
- ARINC 429 or from USS-16 interface unit
- Voice Frequency Range
- 150 to 3500 Hz
- Audio Frequency Range
- 150 to 6000 Hz
- Operating Temperature Range
- −60 to +70 °C
- Relative Humidity
- Up to 98 % at +35 °C
- Vibration Resistance
- 10 g
- Shock Resistance
- 15 g
- Crash Survivability Standard
- TSO-C123A; ED-56A; ARINC 757
- Shock Overload Resistance
- 3400 g, 6.5 ms
- Falling Weight Impact
- 227 kg from 3 m
- Static Compression
- 2270 kgf for 5 min along all axes
- Fire Resistance
- 1100 °C for 1 h; 260 °C for 10 h
- Sea Water Resistance
- 6000 m for 30 days
- Aviation Fluids Resistance
- 200 h
- Mean Time Between Failures
- 13,000 h
- Recorder Dimensions
- 124 × 194 × 320 mm
- Recorder Weight
- Not more than 9 kg
- Technical Documentation
- Product passport; certificate of airworthiness SGKI-023-161-RZBN-1 dated 26.07.2004
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms