Avocent Cyclades-PR4000 Use of a Cross Cable for Testing T1/E1 Ports and Modems

Cyclades-PR4000

Use of a Cross Cable for Testing T1/E1 Ports and Modems

Two tests can be performed with the cross cable: one tests the two T1/E1 ports while the other tests the 2 ports and the modems. The pin diagram of the cross cable is shown in Appendix B. Before starting the tests, connect the two T1/E1 ports using the cross cable.

Testing the Two T1/E1 Ports

1.In the CyROS main menu, choose the following menu options: DEBUG =>HARDWARE TESTS=>HW DEBUG. Choose to test ports T1/E1 2 and T1/E1 3. (Slot 2 is T1/E1 port 1 and slot 3 is T1/E1 port 2.)

2.In the T1/E1 2 Tests Menu, select Comm. Test (master).

3.In the T1/E1 3 Tests Menu, select Comm. Test (slave).

The screen output of the test should appear as shown in the following figure.

Daughter Boards tests statistics:
Slot 2 (E1) - Communication test:
Last	Line Mode		Status	Bandwidth	Clock
Status:	Synchronized		Master	Fractional	Slave
General statistics:
Sent:	3	packets/273 bytes.
Received:	3	packets/471 bytes.
No errors.
Slot 3 (E1) - Communication test:
Last	Line Mode		Status	Bandwidth	Clock
Status:	Synchronized		Slave	Fractional	Master
General statistics:
Sent:	3	packets/471 bytes.
Received:	3	packets/273 bytes.
No errors.

Appendix A - Troubleshooting 151