
DEC-300
™ H.264 and MPEG-2 SD/HD Decoder
User Guide V1.3
29
3.4.6
Menu: Decoder / GPIO
The General Purpose Input/Output (GPIO) supports a GPI function for the pass-through mode to
control devices which are connected with another DEC-300
™ decoder or ENC-300™ encoder.
Furthermore it supports a GPO function for the manual mode to send a signal to a device which is
directly connected to the decoder via the GPIO D-
Sub connector of the breakout cable ‘P’. This allows
users to connect a special device, e.g. sensor to the GPIO Port and send from the decoder a signal to
control the special device.
Figure 13: 'Decoder / GPIO' page of the DEC-3
00™ decoder
Settings:
Description:
Mode:
Specifies the GPIO mode.
‘Manual’
switches the local GPO value
to the level high (=1) or low (=0). The high or low level must be
entered in the ‘GPO-Value’ field.
‘Passthrough/A’
and
‘Passthrough/B’
forward the high (=1) or low (=0) level via UDP
to another encoder or decoder at which a device is connected.
Therefor the IP-address of the destination encoder/decoder must
be entered in the ‘Destination’ field. The difference between
‘Passthrough/A’ and ‘Passthrough/B’ is that the GPO value of
‘Passthrough/B’ is inverted. ‘Passthrough/A’ and ‘Passthrough/B’
has the following states:
Passthrough
Parameter:
DEC-300
GPI:
ENC-300
GPO:
Passthrough/A
1
1
0
0
Passthrough/B
1
0
0
1
GPO-Value:
Specifies the GPO hig
h or low level. ‘0’ indicates the low level
and ‘1’ indicates the high level. This field is only in use, when the
mode is set to ‘Manual’.
Destination:
Specifies the IP-address of the destination encoder/decoder to
which the connection shall be created. This field is only in use,
when the mode is set to ‘Passthrough/A’ or ‘Passthrough/B’.
GPI-Value:
Shows the high/low level which the decoder gets. Read-only field.
Table 11: Description of the 'DECODER/GPIO' webpage of the DEC-300
™