ADTRAN T1-FT1 - Manual (Page 38)

Chapter 3. Operation
3-2 TSU User Manual 61200060L1-1
Front Panel Operation
Figure 3-1. Front Panel Layout
Item Function
Displays:
1 PWR: LED "ON" when power is received by TSU.
2 ERR: LED "ON" when errored events have happened in the
last second.
3 ALM LED "ON" when an alarm condition exists.
4 LB LED "ON" when unit is in loopback.
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 RTS active from DTE.
8 CS LED "ON" when TSU has CTS active toward DTE.
9 LCD WINDOW A 2X16 Liquid Crystal Display (LCD) window that dis-
plays menu items used in configuration and displays
information useful in monitoring the unit.
Operation Keys:
10 UP/DOWN Scroll
Keys Scroll keys used to traverse up/down menu trees, in-
crease/decrease numeric values and scroll through
selections.
11 ENTER Used to choose paths and make selections.
12 CANCEL Used to exit selections or menu tree branches.
TSU
PWR ERR ALM LB
TD RD RS CS
SCROLL
ENTER
CANCEL
13 11
12 10
9 8 7 6 5
4 3 2 1