Sonic KSE-310 - EXTERNAL TRIGGER OUTPUT Setting; Connection of EXTERNAL TRIGGER OUTPUT Signal

Ⅲ-IV-6
4-3 EXTERNAL TRIGGER OUTPUT setting
4-3-1 Connection of EXTERNAL TRIGGER
OUTPUT signal
The EXTERNAL TRIGGER OUTPUT signal is output from J30 connector pin
number CC/DD.
Table 4-5 Table of J30 connector EXTERNAL TRIGGER OUTPUT signal connection
Pin No.
Single Name
Single Level
CC
EXT_TRIG_out
Open collector output and
TTL level input
DD
GND
GND
The signal level can be switched between the open collector and the TTL level.
It can be set at JP3 on IF46B circuit board in the PRC-63 Type Computing Unit.
Fig. 4-5 IF46B circuit board silk-screen drawing and JP3
Table 4-6 Switching of the EXTERNAL TRIGGER OUTPUT signal levels
JP4
Logic
1-2 short
Negative logic (default setting)
2-3 short
Positive logic