AETA MIX2000, Руководство пользователя

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55 000 015 – Ed. E Mix2000 - User Manual 26
This document is the property of AETA and can not be duplicated without authorisation February 2001 Manuel Mix2000 (E) - Ed. E.doc
5.1.9. Digital output (option)
When the option is installed, the digital output is available on the same socket as the RF transmitter
interface. This socket then has following pin-out:
Pin Function
1 Audio output (to RF transmitter)
2 Digital output (+)
3 Digital output (-)
4 DC power supply for the RF transmitter
5 Power and signal ground
6 Digital module power control signal
The digital output module is only powered when pin 6 is shorted to ground (pin 5). This link is included
in the adapter cord used for the digital output, so this module is not powered when the cord is
disconnected, saving power when the digital output is not used.
The digital output available on pins 2 and 3 is electrically AES format. However, the digital output
adapter cord delivers the signal on a standard plug, and converts it to the appropriate electrical format:
With the SPDIF adapter cord (included with the digital output option), the output features following
characteristics:
Standard IEC958 (a.k.a. SPDIF, consumer format)
Format Asymmetric, and transformer isolated
Connector RCA male plug
Output level (on 75
Ω
load)
1 V c-c
Output impedance
75
Ω
With the AES adapter cord (available as a separate accessory), the output features following
characteristics:
Standard AES3 (professional)
Format Symmetric, transformer isolated
Connector XLR male plug (3-pin)
Output level (on 110
Ω
load)
5 V c-c
Output impedance
110
Ω
The cord used must be consistent with the mixer internal configuration (see 4.2.3, Configuration of the
digital output option).
In any case, the maximum digital level (0 dBFS) is reached when the MAIN analogue output has a
+10 VU level (+14 dBu). In other words,
the 0 VU (+4 dBu) reference level on the analogue output
corresponds to –10 dBFS on the digital output .
For proper monitoring, it is highly recommended to set the level meter for PPM ballistics when using the
digital output.