Agilent Technologies S GSM, 8922M manual How to Obtain a Protocol Log, Check, Connection

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NOTE

NOTE

APPENDIX A

How to Obtain a Protocol Log

How to Obtain a Protocol Log

Protocol units are stored in a buffer in the Agilent 8922M until a certain number (~100) has been accumulated, and then they are sent out to the interface in a block. This means that it is not possible to have time stamps attached to the messages by the HP/Agilent 37900D.

Also, even though there is nothing happening on the HP/Agilent 37900D, the Agilent 8922M and Mobile Station may still be active, with Agilent 8922M accumulating protocol messages to send to the HP/Agilent 37900D. With a call up, this occurs about every 15 seconds.

The Agilent 8922M Option 003 occasionally send ABORTS to the attached protocol monitor. These ABORTS are normal and logging data is not lost. The ABORTS will normally only appear on the "Display Logged Data" screen of the HP/Agilent 37900D.

Check	Before logging can begin it is important to ensure that connection has been made.
connection	With the HP/Agilent 37900D on the main Signaling Test Set (STS) screen, highlight
	MANUAL MODE and using the		/		key, select MONITOR to get to the
		t		s
	MONITOR MODE menu.
	Set the instrument to monitor the link by pressing ’M’ which then takes you to the
	MONITOR SIGNALLING LINKS menu.
	Press 1 to get a more detailed look at link 1 on the MONITOR ISDN
	SIGNALLING LINK 1 screen. This is the link to which the cable from the Agilent
	8922M is attached. If the link is good, then the Signalling Bit Rate under Channel 1
	should be shown as 64000 Hz.

If Connection If 0 Hz appears under Channel 1 then there is a fault. Check the following and if the

not working signalling bit rate still does not change contact your local Agilent Technologies Sales and Service Office for assistance.

1Check all cable connections.

2Check Service Latch on the Agilent 8922M.

3Check Interface Card setup in the HP/Agilent 37900D.

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