REA
VERIFIER
© REA Elektronik GmbH, 64367 Mühltal, Germany --- REA MLV-2D Manual Version 3 – 21/12/2015
Page 11 of 98
CAUTION: REA offers a fully-featured range of code verifier devices. For all of
these devices, power is supplied by PoE power adapters. The REA MLV-2D
requires the 15 W POI-2002 adapter. The other devices use the 30 W POI-
3000 adapter (or POI-3002/POI-3004 adapters). If these power adapters
become mixed-up, then the PoE power supply may stop working in some
cases. Accordingly, power adapters shall not be mixed up.
The following list offers a brief summary of typical connection options:
•
The PC and MLV-2D are each connected to a separate network access port in
the room (DHCP mode)
•
The PC and MLV-2D are connected directly (Zeroconf or fixed IP address)
•
The PC and MLV-2D are connected using an Ethernet switch (Zeroconf or fixed
IP address)
•
The PC and MLV-2D are connected using an Ethernet switch, and the Ethernet
switch has a connection to the network (DHCP mode).
4.6.1
Dedicated Ethernet port
The PC has one or a second network port, which is reserved exclusively for the
operation of the verifier. The "Data/IN" socket on the power adapter is connected
directly to this port with a cable. With this configuration, PCs that only have one
network interface can no longer be integrated into the corporate network. In this case
it is recommended to use a second network card (in the simplest case, wireless via
Wi-Fi).
4.6.2
Network mode
The PC is permanently connected to a company network. The REA MLV-2D is
connected using its power supply "Data/IN" port and an available and connected
(patched) network socket. The (DHCP) server in the network assigns the network
addresses automatically. When the company network is experiencing heavy network
traffic, faults (the device shows network errors) may occur during operation. If these
faults become too frequent, the network will need to be segmented by network
administrators or the REA MLV-2D will need to be connected to the computer using a
separate network port (see the previous section).
4.6.3
Switch-based PoE
Operation on an Ethernet switch, which provides the PoE power supply instead of the
supplied power adapter, is also possible. A port is required that is capable of providing
30 W of power. The operator bears responsibility for this operating mode – it has not
been tested by the manufacturer. As PoE is an industry standard for power supplies, it
will not generally cause problems unless a PoE switch becomes overloaded by
handling too many consumers.
