23
7.2 PGM 3/4 Outputs
The PGM Outputs 3 (PGM3 CP001:03) and 4 (PGM4 CP001:04) on the Protégé® SE
Integrated
System Controller are Open Collector Outputs and switch to 0V. The PGM’s can be used to activate
relays, sounders and lights.
!
The PGM 3 and 4 Outputs can switch to a maximum capacity of 50mA. Exceeding
this amount will damage the PGM Output.
Figure 24 - Open Collector PGM 3/4 Connection
B1
+
B1-
B2
+
B2-
P3
P4
1K5 OHM
LED
+A
UX
-
Z1
COM
CO
M
Z2
Z3
Z4
7.3 Reader PGMs
If readers are not attached to the reader ports then the Reader 1, L1 and BZ and the Reader 2,
L1 and BZ Outputs can be used as general purpose PGMs. These can be controlled by assigning
the RDxxxGreen R1, RDxxx Beeper R1, RDxxxGreen R2 and RDxxx Beeper R2 PGMs of whichever
Reader Module has been configured as the Onboard Reader Module.
