Setting carriage return-line feed
Unless commanded otherwise, Telnet transmits a line feed character only (no carriage return) to the connected tuner when you press the <Enter> key. This is the correct setting for SIS communication with the tuner. The Telnet set crlf command forces Telnet to transmit carriage return and line feed characters when <Enter> is pressed; however, if crlf is set, the SIS link with the tuner does not function properly.
Closing the link to the tuner
To close the link to the tuner, access the Telnet prompt by entering the escape sequence (<Ctrl + ]>). At the Telnet prompt, enter close.
Help
For Telnet command definitions, enter ? at the Telnet prompt.
Exiting Telnet (Quit command)
Exit the Telnet utility by entering quit at the Telnet prompt. If you are connected to the AVT 200HD, access the Telnet prompt by entering the Escape sequence (<Ctrl + ]>).
Subnetting — A Primer
A subnet is a subset of a network — a set of IP devices that have portions of their IP addresses in common. It is not the purpose of this manual to describe TCP/IP protocol in detail. However, some understanding of TCP/IP subnetting is necessary in order to understand the interaction of the AVT 200HD and the mail server gateway. To understand subnetting at the level required to install and operate the AVT 200HD, you must understand the concepts of a gateway, local and remote devices, IP addresses and octets, and subnet masks and octets.
Gateways
The AVT 200HD can communicate with the
Local and remote devices
The local and remote devices are defined from the point of view of the function being described. In this guide, subnetting is an issue when you are using the controlling computer to set TCP/IP values in the AVT 200HD (see “Establishing an Ethernet Connection” in the “Remote Configuration and Control” section).
IP addresses and octets
Valid IP addresses consist of four
255.Leading zeros, up to three digits total per octet, are optional. Values of 256 and above are invalid.
Typical IP Address: 192.168.254.254
Octets
