Synel SY-760, Руководство пользователя

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3 Connecting the SY-65 to a connection box
A 24 gauge, shielded two wire twisted pair cable should be used to connect the SY-65 to a connection
box.
• Open the connection box.
• Connect the -TRX wire to the connection marked OR.
• Connect the +TRX wire to the connection marked BK.
• Connect the shield wire to the connection marked RD.
• Close the connection box.
3.1 If communication problems occur
1. Lower the baud rate.
2. Use cables with a heavier gauge conducting wire.
3. Connect 100 ohm resistors between the MRxD and PRxD, and also between MTxD and PTxD that are at the ends of the wire
of the following two connectors:
a. The connector on the computer.
b. The connector on the last terminal of the multi-drop line.
4. EMI protection is integrated into the terminal, but it is best to use an external protector for lightning problems.