Digi 90031300 manual Test 4 Line Card Test, Test 5 Modem Test, Test 6 Sync Internal Loopback Test

Test 4: Line Card Test

The line card test checks to make sure a line card is installed and working.

To begin the test in front panel mode, press the left push-button while the number 4 is displayed in the 7-segment LED display.

When run from the front panel, the pass number is shown on the 7-segment display. Errors are counted on the ten LEDs, and the test is repeated until the left push-button is pressed. The 7-segment display will then show P4 or F4 to indicate pass or fail status.

When run from a terminal, the test repeats until a key is pressed.

Test 5: Modem Test

The modem test checks to make sure a modem card is installed, and all installed cards are working.

To begin the test in front panel mode, press the left push-button while the number 5 is displayed in the 7-segment LED display.

When run from the front panel, the pass number is shown on the 7-segment display. Errors are counted on the ten LEDs, and the test is repeated until the left push-button is pressed. The 7-segment display will then show P5 or F5 to indicate pass or fail status.

When run from a terminal, the test repeats until a key is pressed.

Test 6: Sync Internal Loopback Test

This test places the high-speed synchronous channel in internal loopback mode. No loopback plug is required to run the test. The internal loopback test checks the 4-wire transmission modes 1, 2 and 60-69. (See Appendix B, beginning on page 89, for a list of the modes).

Using Display Panel

While 6 is shown on the 7-segment LED display, press the left push-button to begin the test. This test runs in internal mode and checks the port in all 12 self-clocking modes (modes 1, 2 and 60-69) of synchronous transmission. All 256 8-bit character values (00h-FFh) are sent in each mode. Errors are counted on the ten LEDs, and the test is repeated until the left push-button is pressed again. At this point, either P6 (pass) or F6 (fail) will be displayed. Pressing the left push-button again restarts the test; pressing the right push-button advances to Test 7.

Using Terminal

When running this test from a terminal, you are first asked for the transmission mode (0-74). Enter the mode number you wish to test, or press <Enter> to test all modes. (Note that only modes 1, 2 and 60-69 are checked by this test. See Appendix B, beginning on page 89, for a list of the modes). Next, you are asked for the data to send (00h-FFh). Enter the hexadecimal value to send, or press <Enter> to use all 8-bit values.

Diagnostics 63