7: Setup Mode: Channel Configuration
Disconnect Mode Option
7
6
5
4
3
2
1
0
State LED off with connection (4) 1
Disconnect with EOT (^D)
(5)
1
(1) The Telnet Com Port Control feature is used in conjunction with Com Port Redirector. The unit
sends the Terminal Type upon an outgoing connection.
(2) A password is required for a connection to the serial port from the network.
(3) The TCP connection closes even if the remote site does not acknowledge the disconnection.
(4) When there is a network connection to or from the serial port, the state LED turns off instead of
blinking.
(5) When Ctrl+D or Hex 04 is detected, the connection is dropped. Both Telnet Com Port Cntrl and
Disconnect with EOT must be enabled for Disconnect with EOT to function properly. Ctrl+D is only
detected going from the serial port to the network.
(6) When Modem Control In transitions from a high state to a low state, the network connection to or
from the serial port drops.
Flush Mode (Buffer Flushing) Using this parameter, you can control line handling and network buffer s with
connection startup and disconnect.
FlushMode (00) ? _
You can also select between two different packing algorithms.
Note: All bit positions in the table that are blank represent “don’t care” bits, for t hat
particular option, which can be set to either a 0 or 1 value.
Table 7-10. Flush Mode Options
Function
7
6
5
4
3
2
1
0
Input Buffer (Serial to Network)
Clear with a connection initiated from the device to the network
1
Clear with a connection initiated from the network to the device
1
Clear when the network connection to or from the device is disconnected
1
Output Buffer (Network to Serial)
Clear with a connection initiated from the device to the network
1
Clear with a connection initiated from the network to the device
1
Clear when the network connection to or from the device is disconnected
1
Alternate Packing Algorithm (Pack Control)
Enable
1
The packing algorithms define how and when packets are sent to the net work. The
standard algorithm is optimized for applications in which the unit is used in a local
environment, allowing for very small delays for single characters, while k eeping the
packet count low. The alternate packing algorithm minimizes the packet c ount on the
network and is especially useful in applications in a routed Wide Area Net work
(WAN). Adjusting parameters in this mode can economize the network data s tream.
xPico User Guide 51