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9 Communication
9.1 Communication Feature
148
SICAM MMU 7KG9663, Device Manual
E50417-H1040-C514-A3, Edition 01.2016
Otherwise, the LEDs (see chapter 12.3) signal that the IP address is already assigned and the device is not
connected to the network. In this case, you have to specify a different IP address.
Reception of the Network Configuration from the DHCP Server
The network configuration can also be obtained from an external server. Using the DHCP protocol, the device
is integrated into an already existing network.
If the IP address 0.0.0.0 is configured (see chapter 7.3.4.2), the device sends a query to the external DHCP
server requesting the network configuration immediately after booting. Having received the network configura-
tion, the device launches the Ethernet services.
If no DHCP server is available, you have to disconnect the device from the network and start it using the default
IP address (see chapter 5.7.3) and assign a permanent IP address.
9.1.1.3
Ethernet Interface
SICAM MMU is equipped with an Ethernet interface. The data are exchanged via the RJ45 Ethernet plug con-
nector located on the top side of the device.
Fig. 9-2
RJ45 Ethernet Plug Connector
The Ethernet interface is characterized by the following parameters:
•
Transmission rate:
100 Mbit/s
•
Protocol:
IEEE802.3
•
Connection:
100Base-T (RJ45), pin assignment according to DIN EN 50173, automatic
patch/crossover cable recognition
•
Connecting cable:
100
Ω
to 150
Ω
STP, CAT5 (shielded twisted-pair cable), max. 100 m if well
installed
NOTE
If the device is directly connected to a PC (without Ethernet switch), the PC will need a longer period to be
able to detect the connection and therefore to receive the ARP telegram. In this case it may not be detected
when PC and device have the same IP address.
Ethernet
connector
RJ45
SICAM-MMU_7KG9663_US.book Page 148 Monday, December 7, 2015 12:22 PM