User`s manual

2-3
framing
AIS Alarm Indication
Signal
Lights to indicate the presence of an
alarm indication signal on the E1 receive
signal
YEL Yellow Alarm Lights to indicate the presence of a yellow
alarm on the E1 receive signal
2. Control Keys
The front panelís four control keys allow you to access the
configuration menus, options, and settings that appear in the front
panel display.
Table 2-2 lists and describes the function of each control key.
Table 2-2 Front Panel Keys
Keys Functions
EXIT Exit to upper menu or abort execution command
ENTER Enter menu or confirm your choice
LEFT Select next left menu
RIGHT Select next right menu
3. LCD Display
The front panel LCD display is a 2*16 alphanumerical display. It
displays the status and configurations of the WireSpan 3000. Please
refer to Chapter 3 for detail operation of the LCD display.
Rear Panel
Figure 2-3 shows the rear panel of the WireSpan 3000.
HDSL
ON
OFF
AC
CON
T1/E1
TX
DTE
T1/E1
T1/E1
RX
Figure 2-3 rear panel WireSpan 3000 (AC POWER)
Figure 2-4 shows the rear panel of the WireSpan 3000E.