20
FALLBACK SWITCH AND LOOPBACK SWITCH
on either or both the “A” interface and the “B” interface, the Fallback commands
include an interface identifier.
The Loopback Switch commands are described below.
• The command A<CR> displays the alarm status screen.
• The command AO<CR> turns on alarm processing (recognition and
reporting) for a Loopback Switch unit. AEx<CR> enables the specific alarm
number “x” within the unit.
• The command AF<CR> turns off alarm processing (recognition and
reporting) for a Loopback Switch unit. ADx<CR> disables the specific alarm
number “x” within the unit.
• The command AIO<CR> enables the local alarm indicators (bell and flashing
LEDs).
• The command AIF<CR> disables the local alarm indicators (bell and flashing
LEDs). Factory default.
• The command AN<CR> adds a new alarm with default parameters. Up to eight
alarms can exist in a Loopback Switch unit.
• The command ARx<CR> removes the specific alarm number “X.”
NOTE
Alarms are always numbered consecutively. If eight alarms exist and #5
is removed, the remaining alarms will be renumbered #1 through #7.
• The command ASx<CR> modifies the characteristics of alarm number “X.” In
order for this command to function, it must be entered in its entirety:
ASx<SP>(+/-)y<SP>Ahh:mm:ss<SP>Chh:mm:ss<SP>Sz<RTN>
“x” is the identifier of the alarm that will be modified.
“+” will alarm on signal presence and “-” will alarm on signal absence (do not
type the parentheses).
“y” is the alarming signal and can be SD, RD, SCT, SCR, DTR, DCD, CTS, or
RTS.
“Ahh:mm:ss” is the hours, minutes, and seconds of the “Time to Alarm” (the
delay timer for Loopback Switch to recognize an alarm).
