Mitsubishi Electric EW-50A, Installation And Instruction Manual

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WT07936X05
6-3. Connecting the LAN cable
To prevent unauthorized access, always use a security device such as a VPN router when
connecting to the Internet.
Connect the LAN cable to the LAN1 port on the EW-50. (The LAN2 port is exclusively used for BACnet
®
function.)
● The LAN cable is not supplied. Use a category 5 or above straight LAN cable.
● Use a switching HUB compatible with 100 BASE.
● The maximum distance between the switching HUB and AE-200/AE-50/EW-50 is 100 m (328 ft).
● The recommended number of connected devices such as gateway, router, layer 3 switch, or HUB between the
AE-200/AE-50/EW-50 is four or less. (Transmission round-trip delay time must not exceed one second. If the transmission
delay time is long, a communication error may be detected. Check the transmission delay time, referring to section 6-4.)
Note
● LAN must be installed before the unit installation. Route the LAN cable to the EW-50 in the same way as the M-NET
transmission cables.
● When connecting the EW-50 to an existing LAN, consult the system administrator to decide the IP address.
6-4. Confirming the LAN transmission delay time
Connect a monitoring PC to a device such as HUB that is connected to the AE-200/AE-50/EW-50. Send a
command from the PC to the AE-50/EW-50, and receive the response from the AE-50/EW-50. Check the time
between sending and receiving on the PC display.
(1) Sample system connection
AE-200
EW-50
LAN2 (exclusive use for BACnet
®
)
LAN1
Monitoring PC
Switching HUB
Max.
100 m (328 ft)
Max. 100 m (328 ft)
Max.
100 m (328 ft)