Omega Vehicle Security OMP-MODL manual Event / Counter Input Signal Connections, Vd C

3... INTERFACE MODULES

implementation of a Counter channel within a Program Net and is covered in the Master Icon Listing, Appendix A.

Channel input impedance is greater than 30K ohm.

A 40mS debounce circuit can be enabled via software which can be used to filter out `contact bounce’ (see below).

Event / Counter Input Signal Connections:

To utilize an MLIM-2 channel as an Event or Counter input, connect the input signal positive lead to an Input terminal (Chan A, B, C, or D) and the negative lead to one of the four Common terminals on the module terminal strip (Figure 3... -20). Note that all of the four Common terminals are interconnected and connect directly to the OMP-MODL circuit ground. Refer to Chapter 7 for steps to generate a Terminal Strip Wiring printout for use in making field wiring connections.

	A B	C	D
	ChannelChannelChannelChannel
Contact Closure Application	Common	Common

1	2	3	4	5	6	7
Contact Closure
						ML058
Isolation from Relay contact closure
Powered Signal Application
TTL or CMOS

	15VDC Max
12	Lamp
VDC

Figure 3... -20: Contact closure and Powered type Event or Counter signal input

connections

USING THE OMP-MODL 3-33