How to simulate one QSIG basic call over E1 from the network side

Simulation of an ISDN terminal  is one of the features directly covered by the templates included in the Clarinet Run-Time.

Connecting the unit

The Clarinet Book USB E1/T1 which simulates the Network side in front of a Network, uses the B port "From User". 

The Clarinet-Book can be connected  to the E1 interface in:

• extremity mode over E1. Clarinet inputs set as 75, 120 Ohms. See: wiring , connect,  pin-out

The Clarinet-Book can be connected  to the T1 interface in:

• extremity mode over T1 with clarinet inputs set as 100 Ohms. See: wiring , connect,  pin-out

Creating the profile for PRI-User simulation

A new profile can be created  with the Wizard from the Template list by selecting:

• Profile->New->QSIG......See: building
• Profile with a description including QSIG, Simu, Network, PH=E1, SL=Q931
• Filter with a description including  SL= QSIG, DL=BOP

Example using the wizard:

• ProfileèNewèQSIGèqsig_simu_net_e1.acpèFilter?èqsig_bop.acf

Profile resulting from the wizard is ready for simulation of  QSIG in the D channel 

• Modifications to apply to the profile about physical interface:
  • E1 Options: CRC4 multi-frame if CRC4 is used on the interface.

• Modifications to apply to the profile about Q931signalling:

  • Changing the dialed number: Generator è Comm1 èEdit è Called Party NumberèCoding

Saving the profile:

• ProfileèSave asèfilename.acp.

Running the profile

To launch the profile:

• Select Profile->Run or click over . It allows to select the name of profile. See Running a test
• The windows of the Event-Editor is automatically opened.

To stop the profile

• Click over   See: Stopping a test
• The window of the Event-Editor is automatically close

Troubleshooting over E1

• No messages displayed on the Event-Editor windows. Check if the Alarms line have an indication  such as ' -+ FL' or '++FL' meaning that no signal is detected. 
• The protocol messages are displayed on the wrong directions: the E1 or T1 pair connected to the A and B port are the reverse side.

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updated:  27-Feb-04