COM2 PORT NOTES:
RXD+ / RXB and RXD– / RXA are data sent to the radio to be transmitted
•
• RXD+ / RXB is positive with respect to RXD– / RXA when the line input is a "0"
• TXD+ / TXB and TXD– / TXA are data received by the radio and transmitted
• TXD+ / TXB is positive with respect to the TXD– / TXA when the line output is a "0"
Invisible place holder
This jumpering must be provided by user.
Figure 21. RS-485 Wiring Arrangements
MDS 05-4846A01, Rev. H
SD Series Technical Manual
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