HP 4937A Operating And Service Manual page 47

4937A
WiNK
X
1
. • ^ address information down a trunk line. It is a
a"othook®tfolVhoono on^hook trans.tion that signals the far end to begm send.ng ad-
gits (see figure 3-8),
END INITIATING
CALL
OFF HOOK
ON HOOK
OFF HOOK
ON HOOK
DIGITS
SENT
n
CALL ESTABLISHEI
WINK
1 I
Figure 3-8. Wink Signaling Technique
ored and cannot be displayed,
A
.-^1
INITIATING
END
RECEIVING
END
HP
4337P.
100 ms
200 ms
OFF HOOK
ON HOOK
OFF HOOK
ON HOOK
Figure 3-9. Wink Times