ACR3901T-W1 – Reference Manual
Version 1.02
www.acs.com.hk
Page 53 of 100
7.1.7.
Set Tx Power
This command sets the Bluetooth transmission power of the reader.
Command Format
Offset
Field
Size
Value
Description
0
abData1
CommandCode
1
08h
Command Code of Set 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
Response Format
Offset
Field
Size
Value
Description
0
abData2
ResponseCode
1
88h
Response Code of Set Tx
Power
1
Len (CommandLength)
1
01h
Number of extra bytes of data
2
Data
1
-
00h = Success
01h = Fail
Example:
Request = 08 01 00
Response = 88 01 00