Atop Technology GW51C-MAXI-WDT User manual - Manual (Page 11)

User manual Version 1.4
GW51C-MAXI Serial Server
Copyright © 2004 Atop Technologies, Inc.
All rights reserved. Designed in Taiwan.
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3. Installation Procedures
Prepare necessary cables, hub, power cord and RS232/RS485 connector.
Connect GW51C-MAXI Serial Server to Ethernet network via hub/switch or direct connect to host
computer through cross over cable.
Connect a serial device to a serial port of GW51C-MAXI Serial Server, make sure the right connection
of either RS-232 or RS-485.
Plug in DC9-30V, the buzzer will beep and the RUN LED will blink if GW51C-MAXI Serial Server
functions normally. Please refer to Appendix A.4 to see all of LED messages.
Use SerialManager configuration utility in the product CD or diskette to diagnose GW51C-MAXI
Serial Server. If it starts up successfully, you are able to find the IP and MAC addresses of
GW51C-MAXI Serial Server. One can change the network parameters of GW51C-MAXI Serial Server
to join your LAN by changing its IP address, gateway IP address and subnet mask.
3.1 Default settings
GW51C-MAXI Serial Server is shipped with default settings shown in the following table:
Property Default Value
IP Address 10.0.50.100
Gateway 10.0.0.254
Subnet Mask 255.255.0.0
User Name admin
Password Null
COM 1 9600,None, 8, 1, No flow control, buffer disabled, packet delimiter timer 2ms
Link 1 Type: TCP Server, Listen port 4660, Filter=0.0.0.0, Virtual COM disabled
SysName of SNMP name
SysLocation of SNMP location
SysContact of SNMP contact
Note: One can press the default button to restore system settings including IP address, gateway IP
address and subnet mask etc. to the defaults. Press and hold the default button for 5 seconds till the
server reboots.
3.2 Assigning a new IP Address by ARP command
ARP –s is used to assign a static IP address of GW51C-MAXI Serial Server and add this static entries to
the ARP cache of the computer, when TCP/IP packet with destination port number 1 is sent to
GW51C-MAXI Serial Server, it causes the device to check its MAC address with IP address, once
GW51C-MAXI Serial Server finds those two unmatched, it will reboot and change to the new IP address
which was set by ARP –s command. The following example uses ARP to assign a static IP address of