Instruction manual

Appendix B – Telnet (Terminal) Commands
107
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver
Master Connection Modes
The mode of communication used for connection to the Master is specified via the SET CONNECTION
Telnet command (see page 105).
The connection mode setting options are AUTO, TCP URL, UDP URL, or NDP (default) as described
below.
AUTO – This mode utilizes TCP communication. It looks for a matching System Number and
attempts to come online with the first Master it sees with that System Number.
TCP URL – TCP; the Master is specified via URL.
UDP URL – UDP; the Master is specified via URL.
NDP – UDP; this mode utilizes the NDP binding process to assign the DXLink Module (the
physical device) to a Master (or Virtual Master) via NetLinx Studio. Once bound,
communications are conducted via UDP.
Note: In URL modes, the Master can use either an IP address or a DNS name.
TCP vs. UDP
TCP – Protocol has a built-in retry mechanism.
UDP – Protocol does not have a built-in retry mechanism, but consumes fewer resources on
the Master. AMX’s UDP implementation of NetLinx employs a retry mechanism to provide
the reliability of TCP with the resource efficiency of UDP.
Telnet Commands (continued)
SET TELNET PORT Sets the device’s IP port listened to for Telnet connections.
Example:
>SET TELNET PORT
Current telnet port number = 23
Enter new telnet port number (Usually 23)(0 = disable Telnet):
Once you enter a value and press the Enter key, you get the following message:
Setting telnet port number to 23
New telnet port number set, reboot the device for the change to take
effect.
Note: This command requires a reboot to enable new settings.
SHOW CONNECTION
LOG
Shows the Master connection log for the device.
SHOW CONNECTION
STATS
Shows the connection statistics for the device.
Output similar to the following example:
>show connection stats
Connection Statistics
Total Last 15 Minutes
===== ===============
ICSP Messages: 10039 received 333 received
10038 transmitted 333 transmitted
Blink Messages: 5014 received 166 received
IP Statistics:
RX packets:29298 errors:0 discarded:0
TX packets:15286 errors:0 discarded:0
SHOW LOG Displays the message log.
Syntax:
SHOW LOG <start>
• Use <start> to specify the message number to start displaying.
• Use <all> to display all messages.