User manual Version 1.1
SE5408/SE5416 Multi-port
Serial Server
Copyright © 2010 ATOP Technologies, Inc.
All rights reserved. Designed in Taiwan
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to 1200 bps, 8 data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a
character is 10 bits, and the time required to transfer one character is (10 (bits) / 1200 (bits/s)) × 1000
(ms/s) = 8.3 ms.
Therefore, you should set the “Interval timeout” to be larger than 8.3 ms, so in this case, it must be greater
than or equal to 10 ms. If it is necessary to send a series of characters in the same packet, the serial
device will need to send that series of characters within the specified transmit time, and the total length of
data must be less than or equal to the
serial device server internal UART buffer size (4K per port).
Network to Serial Packet Delimiter
Network to Serial Packet Delimiter is used less often compared to Serial to Network Delimiter because
Ethernet has better speeds. Packet delimiter is a way of packing data in a serial communication. It is
designed to keep packets in track. Serial device server provides three patterns in parameter setting: (1)
packet delimiter by
(1)
Interval timeout,
(2)
Max Byte
and (3)
Character pattern
.
1.
By Time
– The device will transmit the data when set time interval has reached and no more
data comes in.
2.
By Max Bytes
– The device will transmit the data when the data queue has reached the set
size.
3.
By Character
- The device will transmit the data when it sees the set character
If one or more of the delimiters are selected, data would be transmitted when any of the conditions are
met.
Response interval timeout
(Default: 1000ms):
This option only work in Request & Response Mode. When TCP data is received (request) and passed to
Serial side, the device will wait for the set time before transferring another TCP data if the Serial side did
not receive any data (response).
Keep serial buffer data before TCP connection is Established
(Default: Disable):
If “Enable” is selected, the device will store received data in buffer and sent them out when
connection is establish. Otherwise, data will be discarded when “Disable” is selected.
Alert Configuration
In Alert Configuration, you can configure options to let the SE5408/SE5416 Multi-Port Serial Server to
send out device information to alert users, administrators, or responsible personnel. There are five
anomalies defined in the SE5408/SE5416 Multi-Port Serial Server to trigger the alert functions as follow.
Cold Start (Power supply is interrupted)
Warm Start (Device Reset button is pressed)
Authentication Failure (Incorrect username and password are entered)
IP Address Change (The device IP address is changed)
Password Change (The authentication password is changed)
E-mail Setting
To set up an e-mail alert function, you need to configure recipient’s e-mail address and the mail server. Fig
25 shows the dialog to enter a sender’s e-mail address and to enter up to five recipients’ e-mail
addresses.
