ADTRAN TSU LT Manuel d'utilisateur télécharger pdf (Page 23)

Chapter 3 Operation

FRONT PANEL

The front panel monitors operation and controls the unit configuration. Figure 3-1 illustrates the

TSU LT 220V front panel. Use the Up and Down arrows on the front panel to access the menus and data

fields. At every menu level, pressing

CANCEL returns the system to the previous menu level. Repeatedly

pressing

CANCEL returns the system to the main menu. Table 3-1 lists the unit features identified by number

in Figure 3-1.

Figure 3-1. TSU LT 220V Front Panel

Table 3-1. Number Identification for TSU LT 220V Front Panel

Item Displays Function

1PWR

LED ON when power is received by the TSU LT 220V.

2 ERR LED ON when error event occurred in the last second (for example, BPV).

3 ALM LED ON when an alarm condition exists.

4 TST LED ON when unit is in test mode.

5 TD LED ON when DTE data is being transmitted.

6 RD LED ON when DTE data is being received.

7 RS LED ON when request to send (RTS) active from DTE.

8CS

LED ON when TSU LT 220V has clear to send (CTS) active toward DTE.

9LCD

A 2X16 LCD window that displays menu items used in configuration and

displays information useful in monitoring the unit. See also LCD Window on

page 24.

PWR

ERR

ALM

TST

112

11 10 9

63524 78

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 59 60

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ADTRAN TSU LT Manuel d'utilisateur Page 23