Siemens Server - Manual (Page 10)

Description of ChemWeb Server
4
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!