Sollae Systems SMG-5400, Руководство пользователя, Страница: 11 / 38

SMG-5400 User Manual Ver. 1.4
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RS485 Signal Lines
Number Name Description Level I/O Wiring
1 TRX - Data - RS485 In/Out Required
5 GND Ground Ground - Required
9 TRX + Data + RS485 In/Out Required
Table 2-4 RS485 Signal Lines
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RS422 Signal Lines
Number Name Description Level I/O Wiring
1 TX - Transmit Data - RS422 Out Required
3 RX - Receive Data - RS422 In Required
4 RX + Receive Data + RS422 In Required
5 GND Ground Ground - Required
9 TX + Transmit Data + RS422 Out Required
Table 2-5 RS422 Signal Lines
 Each signal line for RS422/RS485 has a 3.9K Ω built-in biasing resistor.