5/16/2023 8:52 AM | |
Joined: 3/9/2020 Last visit: 5/22/2023 Posts: 2 Rating:
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Hi , I want to use two different digital outputs from two different cards to control a horn. This is placed in zone 2 and I placed two diodes right at each output to protect the output. the challenge is that the diodes are not zone 2 approved. What I'm wondering is that if I connect two digital outputs together without an external diode, can I destroy the output with reverse voltage? or does the card have an internal protection? ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 05/17/2023 10:51:55New subject after splitting |
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5/28/2023 1:40 PM | |
Joined: 5/28/2008 Last visit: 9/9/2024 Posts: 4515 Rating:
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Hello, The better to use only 1 DO signal with the two conditions programmed in the CPU. So the network to energize this DO signal have two branches (one brach for each condition) |
Ayman Elotaify |
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