Sony LT20 Series - EXT. in Circuit; Output

70
English
8-6. Output
To output measured data from the RS-232C choose one of
the following four methods.
1. Input to the EXT.IN terminal
11
11
1
Initial setting:
(set at time of shipping)
This mode is for when the PZ201 foot-switch (optional)
is used. Data is output A ms after an “L” level signal has
been received.
2. Input to the EXT.IN terminal
22
22
2
Initial setting:
Mode for shortening the output interval. (Processed as
an interrupt.)
However, there must be no chattering in the input
signal. Data is output after an “L” level signal has been
received.
EXT. IN
AB
EXT. IN
A’ B’
8-5. EXT. IN circuit
Input circuit : TTL level input
Input signal rating
On : V
IL
= MAX. 1.0 V (when input current I
IL
= –5 mA)
Off : V
IH
= MIN. 4.0 V to MAX. 26.4 V
OUT
GND
IN
–COM
5V
47kΩ
47kΩ
1kΩ
Display unit
Externally connected device
(Connection Type)
EXT.IN input