Chapter 2. Hardware Setup
12
RS-232 Channel Transmission
You can manage the connected devices via RS-232 serial devices, such as
computers or bar code scanners. The RS-232 signal transmission flow can be
illustrated as follows:
The general concept here is that a RS-232 signal can be transmitted (Tx) to the
receiving (Rx) end of a unit. The received signal can then be transmitted (Tx)
to the receiving (Rx) end of another unit. The RS-232 signals can be
transmitted back the other way.
PIN
CONFIGURATION
(Captive screw
connectors)
Tx
Rx
Gnd
Tx
Rx
Gnd
Tx
Rx
Gnd
Tx
Rx
Gnd
S
Cat 5e/6/6a/7 cable
Transimitter
Receiver
