36 (E)
LT20A / LT30 Series
9-4. RS-TRG circuit
Input circuit : Common I/O connector pin y
RS-TRG input
9-3. RS-232C Interface
1. Signals (Conforming to EIA-RS-232C)
Signals : Asynchronous, start-stop system,
full duplex system
Data signalling rate :
2400, 9600, 19200, 38400 bps
Data length : Switchable between 7 or
8 bits
Parity :
None, odd, or even selectable.
Stop bits : Switchable between
1 or 2 stop bits
Cable length : Max.15 m
• Switching of the various parameters is performed in
the initial settings (P16).
• The above underlined items are the settings at the
time of shipping.
Externally connected device
(Connection Type)Counter unit