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Delimiter Removal
controls removing of Delimiter 1 and Delimiter 2 from the
received characters before the received characters are sent to the network.
HOW DELIMITERS WORK
When only Delimiter 2 (the end delimiter) is enabled, characters received by the
serial port are accumulated in a buffer. When the end delimiter is received on the
serial port, the buffered characters, including the end delimiter, are sent to the
network. All characters received after the end delimiter are again buffered until
another end delimiter is received.
When both Delimiter 1 (start delimiter) and Delimiter 2 (end delimiter) are enabled,
characters received by the serial port will be discarded until the start delimiter
character is detected on the serial port. The serial server then buffers the start
delimiter character and all subsequent characters received after it until the end
delimiter is detected. When the end delimiter is received, the buffered characters,
including the start and end delimiters, are sent to the network.
When Delimiter Removal is enabled it removes the delimiter character(s) before
sending the other characters across the network.
DHCP
DHCP (Dynamic Host Configuration Protocol)
is a protocol used on special servers
that supply IP addresses to network nodes on request.
When DHCP is enabled on the serial server, on power up it sends a DHCP request to
the DHCP server, which assigns a dynamic IP address, subnet mask, and default
gateway to the serial server.
When DHCP is disabled (static IP addressing), the IP Address, Subnet Mask and
Default Gateway fields must be set manually by entering the appropriate addresses
in these fields. If you do not know what addresses to use in these fields, ask your
network administrator.
Notes:
This product is factory defaulted to the DHCP mode. It is intended that your network’s DHCP
Server provide the IP address assignment. If there is not a DHCP server on your network, the
device will default to IP address 169.254.102.39.
Summary of Contents for VESR901
Page 1: ...VESR9xx Serial servers...
Page 51: ...51 APPENDIX C DIMENSIONAL DIAGRAMS Dimensional Diagram of a VESR901 Serial Server...
Page 52: ...52 Dimensional Diagram of a VESR902D Serial Server...
Page 53: ...53 Dimensional Diagram of a VESR902T Serial Server...
Page 54: ...54 Dimensional Diagram of a VERR92x Serial Server...
Page 56: ...56 Terminal RS 422 485 4 Wire RS 485 2 Wire A TDA Data A B TDB Data B C RDA D RDB E GND GND...