# How to Check at Each Step of the Line Measurement Mode

Check Point / チェックポイント

After the Line Measurement Mode is started up, perform checks according to the following steps. No-line Voltage Check (Voltage check in line connected state) Line Voltage (Onhook) (Voltage check during on-hook in line connected state) Line Voltage (Offhook) (Voltage check during off-hook in line connected state) Line Status DT/BT (Dial tone/busy tone state check) Line Status IR (Call signal state check) EXT Voltage (Offhook) (Voltage check during off-hook in external call connected state) To skip a check item, press the [*] button in the respective step screen. The check results in the Line Measurement Mode can be checked as a list after all items have been checked. Check result data can also be saved on external memory (USB memory). When the following setting is selected, checks in the Line Measurement Mode cannot be performed correctly. To perform checks in the Line Measurement Mode,temporarily change the following settings to values other than those below. Number of calls = 0 Number display compatibility = "ON"

1. No-line Voltage Check(Line voltage check in line non-connected state)

1. After the Line Measurement Mode is started up, the following screen appears.

   

2. Remove the telephone line from the Line port, and press the [*] button.

3. The line voltage check results are displayed as shown below.(Values in the screen are for reference only)

   

4. Press the [#] button and go to the check of the next step.

1. Line Voltage (Onhook) 　

   
   (Line voltage check during on-hook in line connected state)

1. The following [Line Voltage (Onhook)] screen appears.

   

2. Connect the telephone line to the Line port, and press the [#] button.

3. The line voltage check results are displayed as shown below.(Values in the screen are for reference only)

   
   
   

4. Press the [#] button and go to the check of the next step.

   Check Point / チェックポイント

   Press the [#] button a few seconds after line voltage fluctuations have stabilized or when it is known when there will be a fluctuation if fluctuations continue.

1. Line Voltage (Offhook)

   
   (Line voltage check during on-hook in line connected state)

1. The following [Line Voltage (Onhook)] screen appears.

   

2. Check that the telephone line is connected, and press the [#] button.

3. The line voltage check results are displayed as shown below.(Values in the screen are for reference only)

   

4. Press the [#] button and go to the check of the next step.

   Check Point / チェックポイント

   Press the [#] button a few seconds after line voltage fluctuations have stabilized or when it is known when there will be a fluctuation if fluctuations continue.

1. Line Status (DT/BT) (Dial tone/busy tone state check)

   Check Point / チェックポイント

   In this step, check and make a record of the two states, dial tone state and busy tone state. Record the results of the state checks each time that the [#] button is pressed. The dial tone transitions to the busy tone after fixed time elapses. For this reason, note that the check results will no longer be able to be recorded correctly if they are not recorded during the dial tone.

1. The [Line Status (DT/BT)] screen appears.

   

2. Press the [#] button, and check the DT (dial tone) status.

3. When the dial tone status check result appears as shown in the following screen, press the [#] button.(Values in the screen are for reference only)

   Check Point / チェックポイント

   The [#] button must be pressed when the fluctuation of the numeric value stabilizes and before the shift to the busy tone. (While the shift from the dial tone to the busy tone depends on the telephone switchboard, it normally switches in around 20 to 30 seconds.) When the dial tone is continuous, "On: Continuous" is displayed. [Lv: Too high] appears when the signal level of the dial tone is too high.

   

   The screen is as follows in the case of an intermittent dial tone on a PBX.
   

1. Next, the following screen will be displayed.
   Switch to busy tone and confirm that the numbers on the screen have changed. (The values shown on the screen are for reference.)

   Check Point / チェックポイント

   If the signal level is too high in the busy tone, "Lv:  Too high" will be displayed.

   

2. Press the [#] button and go to the check of the next step.

1. Line Status (IR) (Call signal state check)

1. The [Line Status (IR)] screen appears.

   

2. Press the [#] button, and place a call to the telephone number of the printer fax.

3. Check that the check results are displayed as shown in the following screen.(Values in the screen are for reference only)
   

4. Press the [#] button, end the call, and go to the next step.

1. EXT Voltage (Offhook) 　

   
   (Voltage check during off-hook in external call connected state)

1. The [EXT Voltage (Offhook)] screen appears.

   

2. Connect the telephone line to the EXT port on the product, and press the [#] button with the handset raised.

3. The check results appear as follows.(Values in the screen are for reference only)
   

4. Press the [#] button, and place the handset down.

   Check Point / チェックポイント

   Press the [#] button a few seconds after line voltage fluctuations have stabilized or when it is known when there will be a fluctuation if fluctuations continue.

1. Check Results List

   
   The following check results list appears after checking of all steps ends.

   Check Point / チェックポイント

   [Skipped] is displayed for check items that were skipped.

1. The check results screen (1st page) appears.
   Press the [*] button to go to the next page.

2. The check results screen (2nd page) appears.
   To go to the next step, press the [#] button, and to return to the previous page (1st page) of the check results screen, press the [*] button.
   

1. Saving the check results

   Check Point / チェックポイント

   Data is saved on USB memory as follows. Data save format: text format (.txt) Filename : LM_RESULT yyymmddhhmmss.TXT("LM_RESULT" appended with date that data was saved) If a USB memory is not available, manually note down the check results. When the [#] button is pressed without a USB memory connected, [Fail] appears. (If this happens, connect a USB memory. Saving of data can be retried.)

1. In the following screen, connect a USB memory, and press the [#] button.
   

2. The following screen appears to indicate that saving of check results to USB memory is completed.
   

3. Press the [#] button to go to the final page.
4. In the final page, press the power button to end [FAX Line Measurement].
   

Sample saved check data