Oxygen 5
Pag. 6
2.1 INTRODUCTION
Stereo module is easily and readily configurable as line/line or line/phono depending on the user
requirement. Input A is a line stereo input, while Input B (stereo) may be set through internal jumpers as line
stereo or phono stereo (with built-in R.I.A.A. preamplifier). The module provides also a REMOTE interface to
connect or control external equipment. Optoisolated connection pins assure the electrical immunity from
external noises.
2.2 INPUT A
Input A (Line level) is electronically balanced on a female Jack (L and R) with 0 dB gain.
The plug pin-out presents standard configuration:
• Sleeve Ground
• Tip Signal
• Ring Return
We suggest to use everywhere balanced links. See Appendix A for wire connection
schemes.
2.3 INPUT B
Input B can be set through internal jumpers as LINE input (electronically balanced on L
and R Jack with 0 dB gain) or PHONO unbalanced input (performed by an internal
R.I.A.A. preamplifier- see the last paragraph on this chapter for jumper setting).
The plug pin-out presents standard configuration:
• Sleeve Ground
• Tip Signal
• Ring Return
We suggest to use everywhere balanced links. See Appendix A for wire connection
schemes.
In case of turntable, please connect the ‘ground’ turntable wire to the mixing console
frame by means of a screwed link.
2.4 REMOTE INTERFACE
Remote interface is based on a DB 9p female connector and features:
START/STOP COMMANDS
Through the interface you can provide one Start/Stop command regardless of the position
of Input A/B selector.
The Start/Stop function is only enabled by the related button placed on the module and it
doesn’t depend on the slider position.
Two different modes of Start/Stop commands are available depending on the internal
jumper settings.
1) INDIRECT mode (referred to the ‘Start/Stop’ jumper configuration in the scheme
showed at the end of this chapter)
The Start signal is available on the 6-7 pins (optoisolated contact) and the Stop signal is
available on the 1-2 pins (optoisolated contact).
You can choose, through a jumper (J16), between impulsive and permanent mode. In the
first case, at every transition from the Stop to the Start state the contact remains closed for
300 msec, generating a square pulse (6 V amplitude / 300msec length).
In the second case (permanent contact), the Start contact will remain closed till the
Start/Stop button is pressed again.
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