Siemens Server User Manual download pdf (Page 10)

Description of ChemWeb Server

COM 1 - RS232 null modem

This RS232 port is used for modem parameterization and null modem operation without having to

disconnect the device from its application environment.

Terminal No.: Designation: Description:

30 GND Ground

31 CTS RS232 signal CTS

32 RTS RS232 signal RTS

33 RXD RS232 signal RXD

34 TXD RS232 signal TXD

35 GND Ground

Ethernet / 10BaseT (RJ45)

With this connection the ChemWeb Server can be linked with 10Mbit/s to a network or directly to the

network board of a PC. For connection with a network switch or hub, a standard patch cable has to be

used. A direct connection to a PC network board only works when using a crossed network cable.

Telephone line (only for analog or ISDN version)

The connection to the telephone network (analog modem or ISDN) can be made either via the screw

terminals or the RJ45 socket. Both connection methods are equally good.

Terminal No.: Designation: Description analog: Description ISDN:

20 LA1 -- S0 bus line B2

21 LA Telephone line A S0 bus line B1

22 LB Telephone line B S0 bus line A1

23 LB1 -- S0 bus line A2

Outputs

The ChemWeb Server has two relay outputs. Relay output 1 indicates the online status of the modem,

i.e.: it is activated as soon as an Internet connection exists. Relay output 2 can be activated or

deactivated via page frame “Server Setup” ==> “Server Commands” by means of button “Relay 2”.

Terminal No.: Designation: Description:

24 REL 2 Relay 1 – make contact

25 REL 2 Relay 1 - Common

26 REL 2 Relay 1 – break contact

27 REL 1 Relay 2 – make contact

28 REL 1 Relay 2 - Common

29 REL 1 Relay 2 – break contact

The CF card must always be inserted before switching on the

ChemWeb Server and must never be removed during operation!

The CF card must also contain the firmware of the ChemWeb

Server. It is not possible to operate the ChemWeb Server with a

blank CF card!

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Siemens Server User Manual Page 10