X0400 Series Router Manual
Page - 8
Revision 1.4.4
INSTALLATION
15
16
+ 5 VDC
4.7 K
Vext
GND
1
to
internal
circuit
220 Ohm
to
internal
circuit
220 Ohm
4.7 K
GPI 1
Vint
17
18
GPO1 NC*
GPO1 Common
23
24
GPO4 NC*
GPO4 Common
25
from
internal
circuit
from
internal
circuit
*NC Normally Closed with power Off
GPI 6
6
Note: GPI 7 and 8 function in the same manner as GPI 1-6 but are not shown for simplicity
Figure 2-6: General Purpose I/O Schematic
2.5.1. Connecting the General Purpose Inputs
The GPI’s are used to activate video and audio bus crosspoints and are programmable in a number of
configurations. The GPIs can be configured to operate in one of three encoded modes. In these modes,
many of the GPI inputs are pre-assigned to a function. The unused inputs are still available for the user to
assign to a particular function using the
Program Gpi’s
menu item. When the GPI Encoding is set to none,
all 8 inputs are available for the user to assign to particular functions. Sections 3.12.3.1 to 3.12.3.4
describe how each of the GPI encoding modes work and which inputs are available for user assignment.
Summary of Contents for X0400 Series
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