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Section
3
TTS
26B
TABLE 3-1
Index No.
Control o r
Function
SEND o r SEND AND
P r o v i d e s the following, sending modes i n clockwise sequence,
RECEIVE switch
when the receive switch i s i n final c l o c k w i s e position:
1. SEND LOOP, REC G&B
.
2 .
SEND LOOP, REC LOOP
3.
E & M
LINE
B
&G
on M
DROP G&O on E
4.
E & M
LINE
B&O on M
(See Note 1)
NOTE 1:
The
E
lead s t a t u s i n this mode i s controlled
by
the D R O P toggle switch.
NOTE:
The two SEND LOOP positions provide identical
sending conditions; only the receiving functions
a r e different in t h e s e positfons when this switch
.
i s used to control both sending and receiving
functions.
METER CIRCUIT
P r o v i d e s the following measuring functions i n clockwise
switch
sequence:
1. 0-25 P P S ( P u l s e Speed)
2 .
70
BREAK DIRECT
3 .
70
BREAK T-HRU METER RELAY
EXT DIAL CIRCUIT
P r o v i d e s the following modes of operation of the e x t e r n a l
switch
d i a l c i r c u i t i n clockwise sequence:
1 . TALK
2 .
DIAL RELAY
B&G
3. DIAL RELAY
a.
LOOP
b.
M
c .
E
FUNCTION key switch
P r o v i d e s the following functions:
1. TEST L&D (operated upward) T h i s position disconnects
the LINE and DROP, and the E and M jacks f r o m a c c e s s to
other c i r c u i t s of the s e t .
The LINE ( E ) and DROP (M) l a m p
r e l a y s a r e bridged on, and the LINE and DROP jacks a r e
connected together tip to tip and ring. to ring.
2 .
SEND DIAL (position n o r m a l )
3 .
SEND OSC (operated downward)
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