REA ScanCheck 3n, User Manual

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Operating Manual Page 38 / 116 Copyright © REA Elektronik
REA ScanCheck 3n
V 1.2.0 24/02/2020
REA VERIFIER
3.8.2 Direct point-to-point connection
In this case, the REA ScanCheck 3n is always connected to the DATA & Power OUT socket of the
power supply unit. The DATA IN socket of the power supply unit is connected directly to the
Ethernet socket of the PC with the second cable. In terms of network configuration, the REA
ScanCheck 3n must remain in the factory setting.
For both the primary and the alternative configuration, the network configurations (TCP/IP
properties) of the PC with the REA TransWin32 software installation must be configured to
“Automatic setting of the network or IP addresses”. Usually, PCs are preconfigured in the basic
setting.
When network-capabl
e devices are connected in this way, the PC reports “Limited network
functionality”. In this case, both devices use the so-called zero-configuration network setting (“Zero
Config”). With this, the connection is possible after the creation of the cable connection and a short
waiting time. The waiting time is due to the fact that the PC initially looks for a DHCP server and
only gives up searching after some time. Then the PC reports “Limited network functionality”.
Another configuration (manual network address setting) and a driver installation are not required
here. In order to bypass the waiting time, the REA ScanCheck 3n should be switched on first, then
the computer.
The RJ-45 network interface socket on the PC is connected with the RJ45 socket on the power
supply unit marked “
Data In
” (green arrow
in the figure).
The second network cable connects the “
Data & Power Out
” socket of the power supply unit with
the RJ 45 socket of the REA ScanCheck 3n (blue arrow in the figure).
The previous necessity for crossover adapters or cables no longer exists for cutting-edge PCs
(crossover autodetect). Older PCs with 100 Mbit Ethernet interface sometimes still need a
crossover adapter or a crossover cable. Crossover cables or crossover adapters are not included in
the delivery since most PCs today automatically detect crossover or normal.