Omega Engineering RS-422/485 用户手册
Card Setup
OMG-ULTRA-COMM422
Page 7
Interface Mode Examples J1D – J4D
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Figure 6- Headers J1D- J4D, RS-422
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Figure 7 - Headers J1D- J4D, RS-485 ‘Auto’ Enabled, with ‘No Echo’
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Figure 8 - Headers J1D- J4D, RS-485 ‘Auto’ Enabled, with ‘Echo’