Server User Manual
    Server Properties Configuration 
Manual Documentation Number: ESP901-902_4105m  Chapter 5  33 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com 
B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
address, net mask, and gateway to the Serial Server. If a DHCP server 
is not available on the network the Serial Server will time out after 10 
seconds and the default values will remain. When DHCP is enabled, the 
IP Address, Netmask and Gateway fields become inaccessible and 
cannot be changed by the user. 
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A dynamic address assigned by the DHCP server may change if the 
server loses the Ethernet connection or power is removed. The host 
(client) communication software requests a connection to the specific 
IP address of the serial server. If the DHCP reassigns a different IP 
address the software will not be able to communicate with the 
hardware. Therefore, using a static IP address is recommended. 
IP Address 
Software or hardware attempting to access the Serial Server via the 
network must know the IP Address of the server. A static IP address is 
retained and remains the same each time the server is powered up or 
starts/restarts. The default IP address of the 
Serial Server is printed on 
a label on its bottom cover. Entering an appropriate address in the IP 
Address field and updating the server will change the server’s IP 
address. The network administrator can assign/establish the static 
address or group of addresses to be used. 
The IP Address of the 
Serial Server can be confirmed using the DOS 
Ping command. 
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To use Ping to check for communications: 
- Access a DOS window (in XP click Start, then Run) 
- At run prompt enter: CMD 
- In the DOS window enter: Ping xxx.xxx.xxx.xxx (IP address for the 
server to be confirmed) 
 - The command will return the Ping results indicating 4 replies 
Figure 31.  Pinging using the DOS command window 
Server Properties Configuration 
34  Chapter 5  Manual Documentation Number: ESP901-902_4105m 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com 
B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
Netmask 
The default LAN netmask is configured for a Class C address. The user 
may change this. Default is 255.255.255.0 
Gateway 
The Gateway IP address allows users to access the Serial Server from 
outside the LAN. 
MAC Address 
The MAC address is fixed and cannot be changed. It is assigned in the 
factory. Every Ethernet device manufactured has it own unique MAC 
address. 
Version & Date 
The currently loaded version of the firmware, and when it was released, 
is shown here. 
Link Status 
Link status automatically displays the type of Ethernet connection. It 
will either display 10BaseT or 100BaseTX in full duplex or half 
duplex. This will depend on the LAN, switches, hubs used in the LAN 
topology. 
Server Serial Port 
This field indicates the number of the port for with Serial Server 
properties are currently being displayed. Changing the number in this 
field will cause all the other fields to display the properties for the 
specified port. Note, however, that before changing ports, any changes 
to properties must be 
Updated (Saved) or the Serial Server will not 
retain them. 
Baud Rate 
The serial port baud rate on the Serial Server must match the serial 
baud rate of the connected device unless using Virtual COM Mode. In 
Virtual COM Mode the software program will establish serial settings. 
Data/Parity/Stop 
Set this to match the data format used by the serial device connected 
when Virtual COM Mode is not being used.  










