CTS System Status for External Projector/LCD
Shows Red X
Document ID: 116728
Contributed by Paula Talamo, Paul Anholt, and Paul Stojanovski, Cisco
TAC Engineers.
Nov 11, 2013
Contents
Introduction
Prerequisites
Requirements
Components Used
Problem: Red X Appears in System Status Although External Projector/LCD Works
Solution 1: Configuration
Solution 2: Hardware
Systems with ACU
Systems with LCU
Systems with Projector and ACU
Systems with ACU, Serial Cable, and External LCD
Systems with AEB
Systems with LAEB
Solution 3: Software
Additional Help
Related Information
Introduction
In the Cisco TelePresence System (CTS), an external projector or LCD may be working correctly, yet have a
red X in the System Status GUI. This document describes several methods to troubleshoot the red X.
Additional troubleshooting tips are available in the product guides in Related Information.
Prerequisites
Requirements
Cisco recommends that you have knowledge of these topics:
• Cisco TelePresence endpoints
• Cisco Unified Communications Manager (CUCM)
Components Used
The information in this document is based on these software and hardware versions:
• Cisco TelePresence TX9000 Series
• Cisco TelePresence TX9200 Series
• Cisco TelePresence TX1310 Series
• Cisco TelePresence System 3000 Series
• Cisco TelePresence System 3010 Series
• Cisco TelePresence System 3200 Series
• Cisco TelePresence System 3210 Series
• Cisco TelePresence System 1300 Series
The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure
that you understand the potential impact of any command.
Problem: Red X Appears in System Status Although
External Projector/LCD Works
Even if an external projector or LCD is working correctly, a red X may appear in the CTS System Status. In
order to earn a green check, cables must be plugged in correctly, CUCM settings must be configured, and
compatible versions must be used.
First, verify the setup:
• Is the projector or LCD on?
• Are the projector or LCD cables connected?
Then, use the solutions presented in this document in order to verify the codec profile, check the hardware,
and review the software for potential issues.
Solution 1: Configuration
This procedure describes how to verify the codec profile on the CUCM:
1. If you have a CTS 3010/3210 system, verify that the correct Cisco TelePresence Type is selected in
Product Specific Configuration Layout. Ensure that the correct external device is selected in the
CUCM; CTS 3000/3200 systems have an external projector, and CTS 3010/3210 systems have an
external LCD.
2. Ensure that the Presentation Output Device is Projector/Display.
3. If an auxiliary control unit (ACU) is being used, verify the Auxiliary Control Unit check box is
selected. If there is a presentation codec within the environment, verify the Presentation Codec check
box is selected.
Solution 2: Hardware
If the configuration is correct, you should then check the hardware.
First, ensure a supported projector or LCD is being used. See Release Notes for Cisco TelePresence System
Software Release 1.10: Supported CTS Auxiliary Devices for further information.
Next, verify the cabling. Cables must be plugged into specific ports in order to pull and push information
correctly; correct cabling varies with different CTS hardware.
Systems with ACU
The serial cable must be connected to the serial 1 output port on the ACU.
Systems with LCU
The light control unit (LCU) is the successor to the ACU and is used only with TX Series endpoints. The
cabling is much simpler.
For TX9000/TX1310 systems, the serial cable must be connected to the only serial 1 output on the ACU.
There is currently only one model LCD with the TX Series endpoints, and it has one serial port connection on
the back. If you are facing the front of the LCD, the port is in the back of the display on the left side. Verify
the cable is seated tightly in the port.
Systems with Projector and ACU
Ensure the serial connection into the service port of the projector is properly connected. The cable has a
spring−loaded sleeve that must be pulled back in order to lock the connector into place. When the cable is
connected properly, you should hear a click when the connector locks in place, and you should not be able to
pull the cable loose from the projector.
Systems with ACU, Serial Cable, and External LCD
The serial cable must be connected to the INPUT serial port 1 on the LCD. This port is located closest to the
meeting participants and is right next to the High−Definition Multimedia Interface (HDMI) connection.
Note: If you use the second serial port on the LCD, an alarm results, and default settings are not pushed.
This is a front view of the external LCD on a CTS 3x00 system.
The underside view of the same LCD shows the serial cable correctly connected to serial port 1. The HDMI
cable is the black cable connected next to it.
Systems with AEB
The Audio Expansion Board (AEB) is also know as an Audio Expansion Unit or A/V Expansion Box. The
LCD cable (auxiliary display) should be connected to the video out (HDMI) port 4 on the AEB.
Note: Because there are different models and different peripheral options, consult the appropriate assembly
guide for additional diagrams and setup details.
Systems with LAEB
On TX9x00/TX1310 systems with a Lago Audio Expansion Board (LAEB), the cabling was slightly modified
because a redesign added a second display port. The second port on the TX1310 system is used for the
microphone array.
Solution 3: Software
Notes:
Use the Command Lookup Tool (registered customers only) in order to obtain more information on the
commands used in this section.
The Output Interpreter Tool (registered customers only) supports certain show commands. Use the Output
Interpreter Tool in order to view an analysis of show command output.
If the configuration and hardware are set up correctly, look for potential software issues on systems with an
ACU. This procedure describes how to verify that the software version on the ACU is correct and current:
1. Go to the Secure Shell (SSH) in order to access the codec, enter the show upgrade detail command,
and look for the version of the 'auxiliary ctrl.' In this example, the ACU is running version 1.27 but
should be running version 1.30.
2. To push an upgrade to the ACU, enter the set upgrade auxiliary−ctrl command, then restart the codec
with the utils system restart command.
3. Once the codec is back up, verify that the version is now correct.
On the TX series platform with the LCU, use this same approach to check the firmware. Instead of version
1.30, ensure the 'auxiliary ctrl' is running version 1.10.
If your CTS system is running version 1.6.0 through 1.6.3, you might encounter a known defect. See Cisco
Bug ID CSCtf40685, "CFD: Setting presentation LCD defaults fails with 1.6," for more information.
Additional Help
This document should help you resolve most cases where a red X is seen in the System Status. However, if an
alarm is still present after you explore the solutions in this document, contact Cisco Customer Support for
further assistance.
Related Information
• CTS 30x0 Install and Upgrade Guides
• TS 32x0 Install and Upgrade Guides
• TX9x00 Install and Upgrade Guides
• Technical Support & Documentation − Cisco Systems
Updated: Nov 11, 2013
Document ID: 116728