Contemporary Control Systems AI Active Hubs - Manual (Page 24)

TD675100-0M
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Figure 2-13. AI Twisted-Pair Pinouts
NOTE: For -TPB transceiver, LINE+ is defined at the leading
positive phase of the dipulse signal. For -485 transceiver,
LINE+ is defined as the pin with the more positive applied
failsafe bias. The -485X transceiver is not polarized.
Figure 2-14. Front Panel of the AI2 (left) and AI3 (right)
PIN -TPB -485 -485X
A
B
SH
A
B
LINE
LINE LINE
LINE LINE
LINE
SHIELD SHIELD SHIELD
LINE
LINE LINE
LINE LINE
LINE