Siemens Mux_guide_v06 manual Coding of TestCommand message, Example of TestCommand message

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5.3.2 Coding of “TestCommand” message

The coding of the multiplexer stack version is used specifically for SIEMENS equipment and is not defined in ETSI standards. The IEI values defined for the verification pattern of the “TestCommand” message are indicated in Table 7. See GSM recommendation 07.10, Section 5.4.6.3.4).

Table 7: IEI coding

		IEI coding						Information element name
8	7	6	5	4	3	2	1
0	0	0	0	0	1	0	0
								TEMUX_VERSION
0	0	0	0	1	0	0	0	MSMUX_VERSION
		Other values						reserved for future use

For easier analysis of multiplexer traces the message shall be sent in the following format: (1.) Version IEI

(2.) TEMUXVERSION/MSMUXVERSION (send as ASCII)

(3.) Version Number (1...999 send as ASCII)

The message part after the Version IEI is coded with ASCII characters. This allows to read the version information from the trace file.

The version number must have a value between 1-999. If not all digits of the version number are used only the used digits are coded as ASCII sign(s). Digits that are not used are sent as zero string in the test message.

5.3.3 Example of “TestCommand” message

An example for coding a “TestCommand” message is illustrated in Table 8.

Table 8: Coding of “TestCommand” (Example)

Information element name

0x

F9 START Flag

03Address Field DLCI=0,C/R=0,EA=0 EF Control Field UIH Frame, P/F=0

25Length LENGTH=18, EA=1

23Type Field TestCommand, C/R=1, EA=1

21Length Length=16, EA=1

04TEMUX_VERSION

54T

45E

4D M

55U

58X

56V

45E

52R

53S

49I

4F O

4E N

39Version number = 999

XX FCS (is calculated)

F9 END Flag

Mux_guide_v06 Page 36 of 36 30.06.2004