8 Comments. 1  Good article and beautiful snake pictures. 2  Thereâs the coral snake and its non-venomous look-alike, the king snake. 3  Hog nose snakes (puff adders) meet pretty much all of these traits listed but are not considered venomous (to humans).
Buzzer or Ringer. When the radio components of the handset receive the ringer signal from the base, they send electrical signals to the buzzer. The buzzer changes those electrical signals into sound much like the speaker does. You hear the buzzer sound and know that someone is calling you.
1 UNDERSTANDING SONET UPSRs. 2  A major advantage of SONET networks is their standardized APS (automatic protection switching) schemes. SONET systems can be configured as point to point terminals, linear add-drop chains and rings. 3  UPSR. To understand how the UPSR works refer to figure 1 which depicts a four node ring. Each node on this ring is connected to its respective adjacent nodes by two fibers, one transmit, and one receive. For purposes of discussion the outer fiber loop is referred to as ring1 and the inner fiber loop is referred to as ring2.