
B-63322EN-1/01 2. INTERFACE BETWEEN REMOTE BUFFER AND HOST COMPUTER
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2.1
ELECTRICAL INTERFACE
The following which interfaces are provided as standard
specifications.
1) RS-232-C interface
2) RS-422 interface (Note 1)
RS-232-C RS-422
Interface Serial voltage interface
(start-stop system)
Balance transmission serial
interface (start-stop system)
Baud rate 50 – 19200 baud rate
(Note 2)
50 – 86400 baud rate
(Note 1)
Cable length
(MAX.)
100m (4800 baud or less)
50m (9600 baud)
15m (19200 baud)
It differs depending on I/O
devices.
Approximately 800m
(9600 baud or less)
50m (19200 baud or more)
NOTE
1 When the baud rate exceeding 38400 BPS is used, the
synchronization of reception clock is required. Prepare
the TT (*TT) and RT (*RT) signals.
2 When the baud rate used is 19200 baud or more, use the
RS-422 interface.