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NEC TTS 26B Instruction Manual page 32

Pulse signaling test set

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S-I* 0%. FREQ
,
PPS
t
PWR OFF (NOT SHOWN)
S-8
METER CIRCUIT
S-2~PUNCTIONI ON/OFF WK
;
SND
+
CAL (NOT S W N )
S-9.
REC
S-3mSEND OR SEND
+
REC
9-10 ON/OFF
HK.
S-4mEXT. OlAL
CKT
S-II*ON/OFF
HK.
S-5sTEST
-
SND DIAL
-
SND OSC
S-6-SND RT/SL (NOT SHOWN)
S-7mSPARK SUP. (NOT SHOWN
)
E CL
M SND CKT.
SEND LOOP REC LOOP
TTS -268
BLOCK DIAGRAM

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