Sensoray 2253 - Manual (Page 13)

Model 2253P
Model 2253P consists of a model 2253 mounted in a robust metal enclosure, with the
addition of a GPS receiver and two multifunction interfaces in lieu of the GPIO ports found
on the 2253. Each multifunction interface can be independently configured to operate as an
incremental encoder interface or as two digital inputs. When a port is configured as dual
digital inputs, each of the inputs can optionally be used to pause and start a stream.
2253P simplified block diagram
Encoder counts, GPS data, and GPIO input states can be read from the 2253P via 2253 API
functions. If desired, encoder counts and GPS data can be overlaid onto the video by
sending them back to the 2253P as overlay data.
ENC/GPIO connectors
The multifunction interfaces are accessible through two
RJ-45 sockets (Figure 3). Each socket can be connected to
an incremental quadrature encoder, or to two digital input
signals, or it may be left unconnected. The RJ-45 pinout is
defined by whether it is connected to an encoder or used
as dual digital inputs.
11
0 1
ENC/GPIO
Figure 3
RJ45
ANT
Stream
Controller
Incremental
Encoder
Interface
GPS
Receiver
Dual GPIN
Incremental
Encoder
Interface
Dual GPIN
Antenna In
Multifunction
Digital In RJ45
Multifunction
Digital In
Stereo Audio
Line In
Composite
NTSC/PAL
In
Image Resize
& Transform
Text/Graphic
Overlay Compress
Mono Audio
MIC In
USB
Interface
TRS
BNC
USB
Text/Graphic
Overlay
Image Resize
& Transform
Text/Graphic
Overlay
Compress
TRS
Decompress
BNC
Low Latency Preview
Preview
Composite
NTSC/PAL
Out
Stereo Audio
Line Out
TRS
To Host
Computer
Text
Overlay
x