PYKO-out: Professional IP audio endpoint
GPIO
PYKO-out is delivered with four GPIs and four GPOs on terminal block connectors; the counterparts
are provided. For details see Appendix D.
GPI
The PYKO-out GPIs are compatible TTL 5 V.
A GPI must maintain its state for at least 20 ms.
The GPIs can have either local action or a distant action by TCP tunneling.
For the local actions, the user can:
● choose whether it will take place on rising or falling edge
● modify the output volume + or –
● mute the output
● listen to the following or preceding level ‘2’ RTP stream
For the TCP tunneling:
● the changes of a GPI state are transmitted through TCP if an application is connected. This
information is received either by Audio Manager or by another application, but it cannot be
received directly by another PYKO-out.
● TCP connection is required by Audio Manager (PYKO-out is used as server). To establish the
connection, the listening port has to be configured by html page.
● the overall latency of the GPI signal transfer via Audio Manager to the destination GPO is
inferior to 100 ms.
GPO
The PYKO-out GPOs are relay outputs.
It is possible to configure through the web page whether the initial value of each GPO is set to’0’ or to
‘1’.
The GPO can be configured by TCP protocol or from an application.
Serial port (RS232 on DB9)
PYKO-out provides a RS232 serial port on male DB9 on the back panel.
The RS232 can be used to control the PYKO through an external interface, such as e. g. Vity, AMX or
Crestron.
It is possible to use the RS232 in gateway mode, in multicast and multi-destination (up to 4
destinations)
Parameter setting of the tunneling is done from the PYKO-out html pages.
For the pinout of the serial port, please refer to the appendix F.
Audio format
PYKO-out can decode various audio formats, depending on the embedded firmware (see appendix A).
Decoding can be either mono or stereo.
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