START_BYTE = 0x96; // 10010110
STOP_BYTE  = 0xA9; // 10101001

DEFAULT ADDRESS    160 =0XA0

 RELAY1 ON- 1N
 RELAY1 OFF- 1F

 RELAY2 ON - 2N
 RELAY2 OFF - 2F

 RELAY3 ON - 3N
 RELAY3 OFF - 3F

 RELAY4 ON - 4N
 RELAY4 OFF - 4F

 RELAY5 ON - 5N
 RELAY5 OFF - 5F


 RELAY6 ON - 6N
 RELAY6 OFF - 6F

 RELAY7 ON -7N
 RELAY7 OFF - 7F

 RELAY8 ON -8N
 RELAY8 OFF - 8F

PACKAGE TO [ON RELAY1]
-------- 
START_BYTE 0x96
ADDRESS    0xA0 
DATALEN    0x82 
[DATA1]    0x31  ----1 
[DATA2]    0x4E  ----N   
CRC        0xA2 
STOP_BYTE  0xA9

/********************************************************/

PACKAGE TO [CHANGE THE ADDRESS FROM 160 TO 50]
-------- 
START_BYTE 0x96
ADDRESS    0xA0 ---160 OLD ADDRESS 
DATALEN    0x82 
[DATA1]    0x52 
[DATA2]    0x32 --- 50 NEW ADDRESS 
CRC        0xBD 
STOP_BYTE  0xA9

RESET THE RELAY BOARD

/**************************************************************/


/********************************************************/

PACKAGE TO [CHANGE THE ADDRESS FROM 50 TO 160]
-------- 
START_BYTE 0x96
ADDRESS    0x32 --- 50 OLD ADDRESS 
DATALEN    0x82 
[DATA1]    0x52 
[DATA2]    0xA0 --- 160 NEW ADDRESS 
CRC        0xBD 
STOP_BYTE  0xA9

RESET THE RELAY BOARD

/**************************************************************/

CRC generation :
----------------
crc_send  = datalen ^ address;
crc_send ^= data[0];    // if exists
crc_send ^= data[1];    // if exists
crc_send ^= data[2];    // if exists
crc_send = ~crc_send;
if ((crc_send == START_BYTE) || (crc_send == STOP_BYTE))
   crc_send++;
  
NOTE: DATALEN<4..0> can not take the START_BYTE<4..0> or STOP_BYTE<4..0> values.