Omega 1002 manual 3 D/I and D/O, 4 A/D Trigger Methods

1.4.3 D/I and D/O

•Channels: 16 channels DI, 16 channels DO

•DO: Digital output port

Output level: TTL compatible

Output current:	Ioh = 0.5mA, Iol = 8mA
• DI: Digital input port

Input level: TTL compatible

Input current: 50uA (max)

1.4.4 A/D Trigger Methods

•Trigger-methods :

1.Software trigger

2.Pacer trigger: 16-bit programmable timer/counter

3.External trigger: Pre-trigger, Post-trigger, external Pacer trigger

Pacer or software trigger			External trigger
CHn			CHn
Start	End	t	Start	End	t
Normal trigger mode			Post-trigger mode
External trigger			External trigger
CHn			CHn

Start	End	t	Start	End t
External pacer trigger mode			Pre-trigger mode

Figure 1-2. Trigger methods of OME-PCI-1002.

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