User's Manual

6. If passwords were set up for the connected system, you will be prompted to log in as

Administrator or User. Otherwise, the system responds with a <cr/lf>.

7. Once you are connected, you can enter serial (ASCII) commands as desired.

8. When you are through entering commands to the IPL T CR48, type quit at the

command prompt to quit Telnet.

Troubleshooting

For best results, make connections in the following order. Turn on:

1. Control devices (such as a PC or laptop)

2. IPL T CR48

3. Output devices (such as projector lifts, screen lifts, and lighting systems)

If the output A/V device cannot be remotely controlled, check the following:

Power Connections

1. Ensure that all devices are plugged in.

2. Ensure that each device is receiving power. The power LED on the front panel of the

IPL T CR48 lights if the device is receiving power.

Data Connections

1. Check the cabling connections and make adjustments as needed. The LINK LEDs on the

IPL T CR48 and the computer should be solid green if a network connection is detected.

If these LEDs are not lit, either the cable is faulty or not plugged in, or the wrong

type of cable is being used (see Connecting the Hardware in the “Connection and

Conﬁguration” section).

2. Try to ping the unit by typing ping 192.168.254.254 at the Windows command

prompt, or use the Web address provided to you by your system administrator. If you get

no response:

a. Ensure that your unit is using the appropriate subnet mask (check with your system

administrator).

b. Ensure that your PC does not have a software ﬁrewall program that might block the

IP address of the unit.

3. If contact is established with the unit but the unit Web pages cannot be accessed by

your Web browser, verify (in the Options or Preferences menu of the browser) that your

Web browser is conﬁgured for direct network connection and not set up to use a proxy

server.

If you are still experiencing problems, call the Extron S3 Sales & Technical Support Hotline.

Conﬁguration

If, when conﬁguring a unit, the MAC address on the rear panel is not visibly accessible and

the IP address is not known, use the direct PC connection method (see the Connection and

Conﬁguration section).

NOTE: If the unit is not new (for example, out of the box), please see Resetting the

Controller in the “Installation and Operation” section for instructions on how to

reset the IP back to factory default.

IPL T CR48 • Communication and Control 34