User`s manual

IPL T SF24 and IPL T SFI244 • Communication and Control
IPL T SF24 and IPL T SFI244 • Communication and Control
Communication and Control, cont’d
4. If passwords were set up for the connected system, you
will be prompted to log in as Administrator or User.
Otherwise the system will respond with a <cr/lf>.
Figure 4-33 — Connecting to the IP address
5. Once you are connected, you can enter serial (ASCII)
commands as desired.
6. When you are through entering commands to the
interface, type “quit” at the command prompt to quit
Telnet.
Direct port access (ports 2001 through 2002)
Direct access allows a direct, one-to-one connection to any of the
serial ports using a reserved IP port number:
COM1: direct access port #2001
COM2: direct access port #2002
When a TCP session is initiated to port 2001 through port 2002,
all data sent and received will pass directly to and from that
port without any processing. Serial port parameters should be
set via a Telnet connection prior to using direct access.
Using direct access
1. Access the unit via Telnet and configure the COM port
parameters as desired using serial commands (see the
Command/response table earlier in this chapter).
2. Close the initial Telnet session.
3. Open a direct access Telnet session to the selected port by
entering the IP address followed by a space then the port
number (e.g., 192.168.244.244 2001).
A/V Device Control
Control of A/V devices may be accomplished in any of several
ways once the IPL T interface has been connected and
configured. These include Web pages, Telnet, and direct port
access.
Custom Web pages
These pages can either be modified versions of the existing Web
pages, or new Web pages developed in the field.
Web page development can be done with a Web site
development tool such as Frontpage or Dreamweaver. Custom
Web pages are loadable with the Web server File Manager (see
Managing files earlier in this chapter).
Telnet (Port 23)
Telnet, short for Telecommunications Network, provides a way
for you to connect to a computer or server (in this case the IPL T
interface) on a network. Once connected via Telnet, you can
send ASCII serial commands (see the Command/response table
earlier in this chapter) to control devices connected to the
interface through both serial ports. Telnet only works in RS-232
mode.
Accessing and using Telnet
1. Click Start, then Run, then type in “Telnet” and click OK.
The Telnet program will start (see figure 4-32).
2. At the command prompt, type “open” and press Enter.
3. At the < to > prompt, type the IP address of the IPL T unit.
(The default IP address is 192.168.254.254, but it may have
been changed in the setup or configuration process. If it
was changed, use the new address.) Telnet will default to
port 23.
Figure 4-32 — Telnet command prompt
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