ACR3901T-W1 – Reference Manual
Version 1.02
www.acs.com.hk
Page 54 of 100
7.1.8.
Read Tx Power value
This command checks the Bluetooth transmission power of the reader.
Command Format
Offset
Field
Size
Value
Description
0
abData1
CommandCode
1
09h
Command Code of Read Tx
Power
1
Len (CommandLength)
1
00h
Number of extra bytes of data
2
Data
0
-
-
Response Format
Offset
Field
Size
Value
Description
0
abData2
ResponseCode
1
89h
Response Code of Read Tx
Power
1
Len (CommandLength)
1
01h
Number of extra bytes of data
2
Data
1
-
00h = -18 dBm (Default)
Distance: ~4 meters
01h = -12 dBm
Distance: ~7 meters
02h = -6 dBm
Distance: ~16 meters
03h = 0 dBm
Distance: ~25 meters
Example:
Request = 09 00
Response = 89 01 00