SIM800 Series_Multiplexer_Application Note_V1.04
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3.6.1 PSC
Message type coding octet:
1
2
3
4
5
6
7
8
EA
C/R
0
0
0
0
1
0
Hex value is 0x43(Command), 0x41(Response)
The EA bit is always set to 1.
The length field in PSC message frame is 0. It has no value octet.
3.6.2 CLD
Message type coding octet:
1
2
3
4
5
6
7
8
EA
C/R
0
0
0
0
1
1
Hex value is 0xC3 (Command), 0xC1 (Response)
The EA bit is always set the 1.
The length field in CLD message frame is 0. It has no value octet.
3.6.3 Test
Message type coding octet:
1
2
3
4
5
6
7
8
EA
C/R
0
0
0
1
0
0
Hex value is 0x23 (Command), 0x21 (Response).
The EA bit is always set the 1.
The test command is used to test the connection between MS and the TE. The length byte describes the
number of value bytes, which are used as a verification pattern. The opposite entity shall respond with
exactly the same value bytes.
