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6.2.2
Physical
The physical specifications of RS-232-C interface signals con,sist
specifications, interface
specifications.
Electrical
Signal levels must be within the following ranges:
Low level (off)
High level (on)
Note:
These signal levels are measured at the interface connector.
Signals with incorrect levels may be sent at power on and power off.
The interface signal transmitter and receiver must be the same as those
shown in Figure 6.2.
.
Transmitter
. Receiver
Signal
ground
Figure
-a
6
specifications
of
cable
specifications
v or less
-3
V or more
6.2
RS-232-C
interface
interface
signals
specifications, and
-12 v
100 PF
or equivalents
signal
transmitter
of
connector
pin
assignment
and
receiver
electrical
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