ENC-200™ H.264 Encoder
User Guide V1.8
25
3.4.1
Menu: Encoder / GPIO
The General Purpose Input/Output (GPIO) supports a GPI function for the pass-through mode to
control devices which are connected with another ENC-200™ encoder or DEC-200™ decoder.
Furthermore it supports a GPO function for the manual mode to send a signal to a device which is
directly connected to the encoder 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
encoder a signal to control the special device.
Figure 12: 'Encoder / GPIO' page of the ENC-200™ encoder
Settings:
Description:
Mode:
Specifies the GPIO mode. You can choose between ‘Manual’,
‘Passthrough/A’ and ‘Passthrough/B’.
‘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:
ENC-200
GPI:
DEC-200
GPO:
RS422-200
OUT:
Passthrough/A
1
1
Relay Close
0
0
Relay Open
Passthrough/B
1
0
Relay Open
0
1
Relay Close
GPO-Value:
Specifies the GPO high 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 high/low level shall be forwarded. 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 encoder gets. Read only field.
Table 11: Description of the 'ENCODER/GPIO' webpage of the ENC-200™
