Lantronix XPort XChip - User Guide - Page 57

Trailing Characters, Send Characters, DisConnTime (Inactivity Timeout), Telnet Terminal Type

Get Lantronix XPort PDF manuals and user guides View all Lantronix XPort manuals
Add to My Manuals
Save this manual to your list of manuals

Page 57 highlights

7: Setup Mode: Channel Configuration Trailing Characters In some applications, CRC, Checksum, or other trailing characters follow the end-ofsequence character; this option helps to adapt frame transmission to the frame boundary. Send Characters  If 2-Byte Send Character Sequence is enabled, the unit interprets the sendchars as a 2-byte sequence; if this option is not enabled, the unit interprets them independently.  If Send Immediately After Characters is not set, any characters already in the serial buffer are included in the transmission after a "transmit" condition is found. If this option is set, the unit sends immediately after recognizing the transmit condition (sendchar or timeout). Note: A transmission might occur if status information needs to be exchanged or an acknowledgment needs to be sent. DisConnTime (Inactivity Timeout) Use this parameter to set an inactivity timeout. The unit drops the TCP connection to the local port if there is no activity on the serial line before the set time expires. Enter time in the format mm:ss, where m is the number of minutes and s is the number of seconds. DisConnTime (0: 0) ?: To disable the inactivity timeout, enter 00:00. Range is 0 (disabled) to 5999 seconds (99 minutes, 59 seconds). Default is 0. Send Characters Enter up to two characters in hexadecimal representation in sendchar. SendChar 1 ( 0) ? _ SendChar 2 ( 0) ? _ If the unit receives a character on the serial line that matches one of these characters, it sends the character immediately, along with any awaiting characters, to the TCP connection. This action minimizes the response time for specific protocol characters on the serial line (for example, ETX, EOT). Setting the first sendchar to 00 disables the recognition of the characters. Alternatively, the unit can interpret two characters as a sequence (see Pack Control on page 56). Telnet Terminal Type This parameter displays only if you enabled the terminal type option in Disconnect Mode. With this option enabled, you can use the terminal name for the Telnet terminal type. Enter only one name. With terminal type option enabled, the unit also reacts to the EOR (end of record) and binary options, useful for applications like terminal emulation to IBM hosts. XPort User Guide 57

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
7: Setup Mode: Channel Configuration
Trailing Characters
In some applications, CRC, Checksum, or other trailing characters follow the end-of-
sequence character; this option helps to adapt frame transmission to the frame
boundary.
Send Characters
If
2-Byte Send Character Sequence
is enabled, the unit interprets the
sendchars as a 2-byte sequence; if this option is not enabled, the unit interprets
them independently.
If
Send Immediately After Characters
is
not
set, any characters already in the
serial buffer are included in the transmission after a "transmit" condition is found.
If this option is set, the unit sends immediately after recognizing the transmit
condition (sendchar or timeout).
Note:
A transmission might occur if status information needs to be exchanged or an
acknowledgment needs to be sent.
DisConnTime (Inactivity Timeout)
Use this parameter to set an inactivity timeout. The unit drops the TCP connection to
the local port if there is no activity on the serial line before the set time expires. Enter
time in the format mm:ss, where m is the number of minutes and s is the number of
seconds.
DisConnTime (0: 0) ?:
To disable the inactivity timeout, enter
00:00
. Range is 0 (disabled) to
5999
seconds
(99 minutes, 59 seconds). Default is
0
.
Send Characters
Enter up to two characters in hexadecimal representation in sendchar.
SendChar 1 ( 0) ? _
SendChar 2 ( 0) ? _
If the unit receives a character on the serial line that matches one of these
characters, it sends the character immediately, along with any awaiting characters, to
the TCP connection. This action minimizes the response time for specific protocol
characters on the serial line (for example, ETX, EOT). Setting the first sendchar to 00
disables the recognition of the characters. Alternatively, the unit can interpret two
characters as a sequence (see
Pack Control
on page 56).
Telnet Terminal Type
This parameter displays only if you enabled the terminal type option in Disconnect
Mode. With this option enabled, you can use the terminal name for the Telnet
terminal type. Enter only one name.
With terminal type option enabled, the unit also reacts to the EOR (end of record) and
binary options, useful for applications like terminal emulation to IBM hosts.
XPort User Guide
57