HIKVISION DS7208HVI-ST - Rs485 Module

5.6. RS485 Module
 RS485 main control chip:6LB184, PIN 6, 7 were TX +,TX-,the difference
voltage close to 5 V
 TVS（B03NC）：B03NC（BA2、BA7）protect the sending end (TX +, TX-R +,
R-)
 Thermistors (JK250) : JK250 (RPT1/2) protect the sending end (TX +, TX-R
+, R-)
 RS485 module part:
BD9329
（
U1
）
SATA interface
SATA
power
interface
B03NC
（
BA2
、
BA7
）
6LB184
JK250
（
RPT1/2
）