Omnitronix Data-Link DL100, User Manual

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Omnitronix DL100 User’s Manual
Page 12
Data Collection, Storage, and Polling
Depending on the configuration of the DL100, a unit may store data received from an RS-232
serial device on up to four ports. The data received on each port can be stored and handled
independently from any other port. The unit can also generate and store alarm records based on
data alarm monitoring. These records are stored in the Alarms file, which can be polled just like
any of the serial port data files.
There are several methods available to poll these files. Serial transfer through the command port
allows an administrator to connect to the DL100 and poll the records from each file via Xmodem,
CBB, line, or compressed line modes. Line mode releases the data just as it was entered with no
printable character manipulation. Compressed line mode uses the following simple compression
algorithm to speed up data transfer:
Spaces in compressed line mode are replaced with lowercase alphabetic characters. ‘a’ = 1 space;
‘n’ = 14 spaces; ‘ze’ = 26+5 spaces, or 31.
Note:
When using compressed line mode, the original record may contain no lowercase letters in order
to avoid data damaged by a decompression process.
The same methods used in serial command mode transfer can be used via both modem and Telnet
command modes. Refer to Chapter 6, Command Reference, for more information on manual data
release commands.
Records stored within the DL100 can also be polled by means of FTP. The records can be
delivered automatically via FTP push. FTP push is accomplished by the DL100 opening a
predefined FTP connection at a specific interval and uploading all selected files.
Remote Access
The DL100 provides an administrator with transparent access to devices connected to the serial
ports of the unit via pass-through connections. These can be accessed via the command processor
or through Telnet ports. This sort of access can be used to configure, maintain, or manipulate
devices that would normally have no remote access.
Alarm Monitoring
The DL100 has the capability to monitor incoming data for user-defined strings and then report
the alarm via several avenues. Each of the up to four ports on the unit can be monitored by one of
two different data alarm families. Each of these families may contain up to 16 individual alarm
monitors. Each monitor contains independent actions, counters, and other unique settings.
The DL100 has the ability to trigger an alarm at scheduled days and times, 80% memory full, and
after user-specified periods when no-data is received. Each of these alarms can use the same
notification methods as the data alarms.
Data alarms triggered within the DL100 are logged via the alarms file mentioned in the previous
section. This file can be obtained in the same fashion as any other data file within the unit.
Alarm Notification
The DL100 is equipped to use several different methods to notify an administrator of alarms
detected within the unit. The unit can send SNMP traps to enterprise management software or
Omnitronix Alarm Manager (available at
http://www.omnitronix.com or via Omnitronix technical