2 Installation
gas-net F1
Page 2-8
2.2.3.3 TCP/IP Interface (optional)
The TCP/IP interface is an RJ45 socket at the back of the device. It facilitates
the communication via Ethernet with 10/100 MBit/s and thereby integrates the
device in a standard network installation. In addition to time synchronization
based on the NTP protocol, remote inquiries and the Modbus-TCP protocol for
exchanging data with external devices are also possible via the TCP/IP
interface.
The IP address, subnet mask and gateway address must be parameterized for
an adequate integration in the existing network infrastructure. Please pay
attention to the fact that the IP address must be unambiguous in the subnet.
Please ask the network administrator for the subnet mask and gateway address.
The use of an STP CAT5 network cable (not transposed) is mandatory.
The pin assignment of the RJ45 socket corresponds to the general Ethernet
standard.
The TCP/IP interface adjusts itself automatically to the network transmission
rate.
2.2.3.4 COM2 Interface (optional)
The COM2 interface is a serial interface to RS232 and may be used as protocol
interface for the connection of a host computer.
The corresponding pin assignment is as follows:
Pin no. Signal Signal name 9-pin rectangular connector
1 DCD Data Carrier Detect --
2 RXD Receive Data for RK512/3964R and MODBUS
3 TXD Transmit Data for RK512/3964R and MODBUS
4 DTR Data Terminal Ready --
5 GND Signal Ground for RK512/3964R and MODBUS
6 DSR Data Set Ready --
7 RTS Request to Send --
8 CTS Clear to Send --
9 RI Ring indicator --
Shield
-- Chassis Same potential as protective earth
If the functionality of the integrated RDT shall be used, connect the modem or
null-modem cable to the interface named COM2.
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