evertz HDSD9545DLY-PRO - Connecting the General Purpose Outputs; Figure 2-3: Powering the General Purpose Input Opto-Isolators from the HDSD9545 DLY-PRO; Figure 2-4: Powering the General Purpose Input Opto-Isolators from an External Power Supply

HDSD9545DLY - PRO Profanity Bypass Delay Manual
Page 2-10 Revision 1.3.7 INSTALLATION
GPI
15
25
GPI
Command
16
+ 5 VDC
to
internal
circuit
220 Ohm
GND
Vext
2.7 K
Figure 2-3: Powering the General Purpose Input Opto-Isolators from the HDSD9545DLY-PRO
Alternately, an external voltage source may be applied as shown in Figure 2-4. The Vext voltage must be
greater than the voltage supplied to the GPI by at least 5v.
GPI
15
25
5-50 VDC
GPI
Command
to
internal
circuit
220 Ohm
GND
Vext
2.7 K
Figure 2-4: Powering the General Purpose Input Opto-Isolators from an External Power Supply
2.7.2. Connecting the General Purpose Outputs
The Programmable GPOs are used to trigger external devices and a transition tally capability. The GPOs
will be in the de-energized state when the power is off so all contacts will be closed. When the unit is
powered up the GPO Relay contacts will open. A transition tally will cause a contact closure. The 4
contact sets are assigned to particular transition tallies using the TRANSITION menus. (See section 3.8)