The first product QVC UK sold on October 1, 1993, was a yellow alarm
clock in the shape of a Volkswagen Beetle for PS16.50.
Yellow alarm occurs when the following conditions are met:
(b) Value 0/1 on output corresponding to yellow alarm
It will monitor physical layer alarms such as Sync Loss, Carrier Loss, Blue Alarm, Yellow Alarm
, AIS, and Error Counters such as Frequency (Hz), Level (dBdsx) for every specified Time Period in Seconds on the selected T1 E1 Port."
A yellow alarm
light indicates the filter is close to reaching maximum capacity of soot or ash.
IT began 10 years ago with a yellow alarm
clock in the shape of a Volkswagen Beetle.
The yellow alarm
alerts security of a potentially threatening situation, such as a repeat shoplifter entering the store or a customer dispute.
This "yellow alarm" tells the sending terminal that the receiving terminal cannot frame on the sending terminal's signal.
The front-panel display also shows when the data link is not implemented or when a yellow alarm is being received, which means that the remote terminal is not able to synchronize on the DS1 signal that it receives from this terminal.
“Graph is enhanced to display all alarms and error types including Sync loss, Bipolar, Carrier loss, Blue alarm, Yellow alarm
, AIS, BPV, CRC, Frame errors, and Tx/Rx over/under runss.
IT'S 15 years since QVC launched in Britain with the must-have yellow alarm
clock shaped like a Volkswagen Beetle.