B&B Electronics, Inc.
SPECTRE Configuration Manual
71
710-10001-02 Rev. 3.0
www.bb-elec.com
www.bb-europe.com
1.25. USB port configuration
Select the
USB Port
item in the configuration menu to bring up the USB configuration
page. A USB to RS-232 converter can be used to send data out of the serial port from
the Ethernet network in the same manner as the RS-232 expansion port options.
Item
Description
Baud rate
Applied communication speed.
Data Bits
Number of data bits.
Parity
Control parity bit
none
even
odd
Stop Bits
Number of stop bit.
Split Timeout
Inter-character Timeout (ms). If no characters are received within this
amount of time, any buffered characters will be sent out of the USB port.
Protocol
Communication protocol:
TCP - communication using a linked protocol TCP
UDP - communication using a unlinked protocol UDP
Mode
Mode of connection:
TCP server - The router will listen to incoming requests regarding
the TCP connection.
TCP client - The router will connect to a TCP server
on the specified IP address and TCP port.
Server
Address
In mode
TCP client
it is necessary to enter the
Server address
and final
TCP port
.
TCP Port
In both modes of connection it is necessary to specify the TCP port on
which the router will communicate TCP connections.
Table 56: USB port configuration 1
If the
Check TCP connection
is selected, the router will automatically send TCP keep-
alive messages to verify that the connection is still valid.
Item
Description
Keepalive Time
Time between sending keep-alive packets
Keepalive Interval
Keep-alive Response Tiimeout
Keepalive Probes
Number of attempts before connection is down
Table 57: USB PORT configuration 2
It the option
Use CD as indicator of the TCP connection
is selected, the router will
activate the DTR output when a TCP connection is active.
CD
Description
Active
TCP connection is on
Nonactive
TCP connection is off
Table 58: CD signal description
