Crestron CEN-SWPOE-24
24-Port Managed PoE Switch
Operations Guide
This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
Regulatory Compliance
This product is Listed to applicable UL Standards and requirements by Underwriters Laboratories Inc.
As of the date of manufacture, the CEN-SWPOE-24 has been tested and found to comply with specifications for
CE marking and standards per EMC and Radiocommunications Compliance Labelling.
Federal Communications Commission (FCC) Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions:
(1) This device may not cause harmful interference and (2) this device must accept any interference received,
including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance
could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
Industry Canada (IC) Compliance Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
All brand names, product names and trademarks are the property of their respective owners.
©2010 Crestron Electronics, Inc.
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Contents
24-Port Managed PoE Switch: CEN-SWPOE-24 1
Introduction ...............................................................................................................................1
Features and Functions................................................................................................ 1
Specifications ..............................................................................................................2
Physical Description.................................................................................................... 3
Setup .......................................................................................................................................... 7
Network Wiring........................................................................................................... 7
CAT5 Wiring............................................................................................................... 7
Installation................................................................................................................... 7
Hardware Hookup .....................................................................................................10
Configuration...........................................................................................................................11
Accessing the Configuration Utility .......................................................................... 11
Navigating the Configuration Utility......................................................................... 13
Problem Solving ......................................................................................................................25
Troubleshooting......................................................................................................... 25
Reference Documents................................................................................................25
Further Inquiries........................................................................................................ 25
Future Updates ..........................................................................................................25
Appendix: Fast Ethernet and Gigabit Ethernet ....................................................................... 26
About Fast Ethernet................................................................................................... 26
About Gigabit Ethernet..............................................................................................26
Return and Warranty Policies.................................................................................................. 27
Merchandise Returns / Repair Service ......................................................................27
CRESTRON Limited Warranty.................................................................................27
Operations Guide – DOC. 7036A Contents • i
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
24-Port Managed PoE Switch:
CEN-SWPOE-24
Introduction
The CEN-SWPOE-24 offers control system networking made easy, providing
Crestron
touchpanels, keypads, control processors, and other devices in a 2-space rack mount
package. Rear panel connectivity and front panel controls provide an ideal form
factor for use in a typical 19” equipment rack. Full IEEE 802.3af Power over
Ethernet (PoE) is furnished simultaneously across all 24 ports, providing a
centralized power source for numerous PoE powered devices and eliminating the
need for additional power supplies and wiring.
Dual Gigabit Ethernet uplink/stacking ports assure ample bandwidth for the 24
high-speed 10/100BASE-T ports. Its front panel management port enables mirroring
of any rear port for easy monitoring and troubleshooting. Customizable front panel
labeling makes it easy to designate each port with a friendly, descriptive name.
Advanced configuration is enabled through an intuitive Web browser interface.
®
guaranteed performance and reliability for a complete Ethernet network of
Features and Functions
• Rack-mount 24-port managed 10/100 Ethernet switch
• Full IEEE 802.3af Power over Ethernet (PoE) provided simultaneously
across 24 ports
• Dual Gigabit Ethernet uplink/stacking ports
• All ports rear mounted for use in a typical AV equipment rack
• Front panel management port for easy troubleshooting
• Configured via simple to use Web browser interface
• SNMP monitoring and management
• Auto-discovery via Crestron Toolbox™
• Layer 2 managed switching functionality
• 8.8 Gbps switching fabric (non-blocking)
• Auto-negotiation and auto MDI/MDIX capability
• Port configuration settings for speed and duplex
• Real time clock supports synchronization with Internet based time
servers via NTP
• Custom front panel labeling using Crestron Engraver software
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 1
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
Specifications
Specifications for the CEN-SWPOE-24 are listed in the following table.
CEN-SWPOE-24 Specifications
SPECIFICATION DETAILS
Ethernet
Ports
Network Standards
Topology Star
Transmission Method Store-and-Forward
Mac Addresses 8K addresses
Memory Buffer 3 Mbits per device
Switch Fabric 8.8 Gbps non-blocking
Power Requirements
Environmental
Temperature 32° to 104°F (0° to 40°C)
Humidity 10% to 90% RH (non-condensing)
Heat Dissipation 400 BTU/hour
Enclosure
Chassis Metal, black finish, fan cooled, vented sides
Faceplate
Mounting
Dimensions
Height
Width
Depth 11.66 in (297 mm)
Weight 9.1 lbs (4.1 kg)
(24) 10BASE-T/100BASE-TX auto-sensing
Fast Ethernet with PoE
(2) 10/100/1000BASE-T auto-sensing
Gigabit Ethernet
IEEE 802.3, 802.3u, 802.3ab, 802.3af,
802.3x, 802.1p, 802.1q, 802.1w, 802.1x
4.8 - 2.0 Amps @ 100-240 Volts AC,
50/60 Hz
Aluminum, black finish with polycarbonate
label overlay
Freestanding or 2U 19-inch rack mountable
(adhesive feet and rack ears included)
3.56 in (90 mm),
3.47 in (89 mm) without feet
17.03 in (433 mm),
19.00 in (483 mm) with ears
2 • 24-Port Managed PoE Switch: CEN-SWPOE-24 Operations Guide – DOC. 7036A
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Physical Description
This section provides information on the connections, controls and indicators
available on your CEN-SWPOE-24.
CEN-SWPOE-24 Physical View (Front View)
CEN-SWPOE-24 Physical View (Rear View)
CEN-SWPOE-24 Overall Dimensions (Front View)
CEN-SWPOE-24 (Rear View)
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 3
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
CEN-SWPOE-24 Overall Dimensions (Top View)
11.46 in
(292 mm)
11.66 in
(297 mm)
Connectors, Controls & Indicators
# CONNECTORS,
DESCRIPTION
CONTROLS &
INDICATORS
1 ON / OFF
2 PWR LED (1) Green LED, indicates operating power
3 MGMT PORT MIRROR
(LED and Button)
(Continued on following page)
(1) Rocker switch behind protective guard,
turns main power on or off
supplied via main power input and unit is
turned on
(1) Recessed miniature pushbutton and (1)
green LED to enable or disable the port
mirroring MGMT port.
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Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Connectors, Controls & Indicators (Continued)
# CONNECTORS,
DESCRIPTION
CONTROLS &
INDICATORS
4
5 LINK/ACT LEDs (26) Green LEDs, indicate Ethernet link
6 SPEED (1 – 24)
7 POE (1 – 24)
8 GIGABIT (25 – 26)
MGMT*
LEDs
LEDs
LED
(1) 8-wire RJ-45, female
10BASE-T/100BASE-TX Ethernet port and
IEEE 802.3af Class 0 PoE power sourcing
equipment output
PIN SIGNAL PIN SIGNAL
1 TX + 5 N/C
2 TX - 6 RX 3 RX + 7 N/C
4 N/C 8 N/C
status and activity for each corresponding
port
(24) Green LEDs, indicate connection speed
for each corresponding port. Blinking green
indicates a 10 Mbps connection, solid green
indicates a 100 Mbps connection.
(24) Green LEDs, indicate PoE is active and
a PoE powered device is connected to each
corresponding port.
A green LED indicates a link to the
corresponding port (GIGABIT ports 25 and
26) is operating at 1000 Mbps.
9 RESET Button (1) Recessed pushbutton to restart the
device. To restore the device to its factory
default settings, press and hold the button for
ten seconds.
10 10/100 POWER OVER
ETHERNET (2 – 24)*
(23) 8-wire RJ-45, female
10BASE-T/100BASE-TX Ethernet ports and
IEEE 802.3af Class 0 PoE power sourcing
equipment outputs
PIN SIGNAL PIN SIGNAL
1 TX + 5 N/C
2 TX - 6 RX 3 RX + 7 N/C
4 N/C 8 N/C
(Continued on following page)
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 5
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
Connectors, Controls & Indicators (Continued)
# CONNECTORS,
DESCRIPTION
CONTROLS &
INDICATORS
11 GIGABIT UPLINK
(25 – 26)*
12 G (1) 6-32 screw, chassis ground lug
13 100-240V~50/60Hz
4.8-2.0A
* To determine which is pin 1 on the cable, hold the cable so the end of the eight pin modular plug is
facing away from you, with the clip down and copper side up. Pin 1 is on the far left.
(2) 8-wire RJ-45, female
10/100/1000BASE-T Ethernet uplink/stacking
ports
PIN SIGNAL PIN SIGNAL
1 TX + 5 N/C
2 TX - 6 RX 3 RX + 7 N/C
4 N/C 8 N/C
(1) IEC C14 male chassis plug, main power
input
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Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Setup
Network Wiring
When wiring the Ethernet network, consider the following:
Use Crestron Certified Wire. •
• • Use Crestron power supplies for Crestron equipment.
Provide sufficient power to the system.
CAUTION: Insufficient power can lead to unpredictable results or damage
to the equipment. Please use the Crestron Power Calculator to help calculate
how much power is needed for the system (www.crestron.com/calculators
CAT5 Wiring
Category 5 (CAT5) wiring is a twisted pair cable designed for Ethernet networks.
These networks operate at speeds of up to 100 Megabits per second (Mbps) using the
100BASE-T standard. For more information refer to “Appendix: Fast Ethernet and
Gigabit Ethernet” on page 26.
).
Ventilation
Rack Mounting
For additional information, refer to the latest version of the Crestron CAT5 Wiring
Reference Guide (Doc. 6137), which is available from the Crestron website
(www.crestron.com/manuals
).
Installation
The CEN-SWPOE-24 should be used in a well-ventilated area. The venting holes
should not be obstructed under any circumstances.
To prevent overheating, do not operate this product in an area that exceeds the
environmental temperature range listed in the table of specifications. Consider using
forced air ventilation and/or incrementing the spacing between units to reduce
overheating. Consideration must be given if installed in a closed or multi-unit rack
assembly since the operating ambient temperature of the environment may be greater
than the room ambient temperature. Contact with thermal insulating materials should
be avoided on all sides of the unit.
The CEN-SWPOE-24 can be mounted in a rack or stacked with other equipment.
Two “ears” are provided with the CEN-SWPOE-24 so that the unit can be rack
mounted. These ears must be installed prior to mounting. Complete the following
procedure to attach the ears to the unit. The only tool required is a #1 or #2 Phillips
screwdriver.
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 7
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
WARNING: To prevent bodily injury when mounting or servicing this unit in a
rack, take special precautions to ensure that the system remains stable. The following
guidelines are provided to ensure your safety:
• When mounting this unit in a partially filled rack, load the rack from the
bottom to the top with the heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before
mounting or servicing the unit in the rack.
NOTE: If rack mounting is not required, rubber feet are provided for tabletop
mounting or stacking. Apply the feet near the corner edges on the underside of the
unit.
NOTE: Reliable earthing of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than direct
connections to the branch circuit (e.g., use of power strips).
To install the ears:
1. There are screws that secure each side of the CEN-SWPOE-24 top cover.
Using a #1 or #2 Phillips screwdriver, remove the three screws closest to
the front panel from one side of the unit. Refer to the diagram following
step 3 for a detailed view.
2. Position a rack ear so that its mounting holes align with the holes vacated
by the screws in step 1.
3. Secure the ear to the unit with three screws from step 1, as shown in the
following diagram.
Ear Attachment for Rack Mounting (this image shows a 1RU device)
USE COVER SCREWS
4. Repeat procedure (steps 1 through 3) to attach the remaining ear to the
opposite side.
8 • 24-Port Managed PoE Switch: CEN-SWPOE-24 Operations Guide – DOC. 7036A
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Stacking
Four “feet” are provided with the CEN-SWPOE-24 so that if the unit is not rack
mounted, the rubber feet can provide stability when the unit is placed on a flat
surface or stacked. These feet should be attached prior to the hookup procedure.
Refer to the following illustration for placement of the feet.
Foot Placement for the CEN-SWPOE-24
NOTE: No more than two CEN-SWPOE-24 units should be stacked.
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 9
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
Hardware Hookup
Make the necessary connections as called out in the illustration that follows this
paragraph. Refer to “Network Wiring” on page 7 before applying power. Apply
power after all connections have been made.
When making connections to the CEN-SWPOE-24, note the following:
• Use Crestron power supplies for Crestron equipment.
• The included cable cannot be extended.
Hardware Connections for the CEN-SWPOE-24 (Front View)
MGMT:
Connects to Computer to
Monitor Network Traffic
Hardware Connections for the CEN-SWPOE-24 (Rear View)
2 - 24:
To POE or Non-POE
Network Devices
100-240V~50/60Hz
4.8-2.0A:
Ground
To Additional CEN-SWPOE-24
Power from Line Voltage
GIGABIT UPLINK (25 – 26):
Units or Network Backbone
NOTE: To prevent overheating, do not operate this product in an area that exceeds
the environmental temperature range listed in the table of specifications.
NOTE: Do not make any connections to the NA port on the rear of the switch. It is
the lowest left connector in the image shown above.
10 • 24-Port Managed PoE Switch: CEN-SWPOE-24 Operations Guide – DOC. 7036A
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Configuration
Have a question or comment about Crestron software?
Answers to frequently asked questions (FAQs) can be viewed in the Online Help
section of the Crestron website. To post a question or view questions you have
submitted to Crestron’s True Blue Support, log in at http://support.crestron.com.
First-time users will need to establish a user account.
The CEN-SWPOE-24 provides a Web-based configuration utility that can be
accessed from a Web browser or from the Crestron Toolbox.
Accessing the Configuration Utility
NOTE: Configuration of the CEN-SWPOE-24 must be performed from a computer
whose IP address is in the same IP subnet. The default configuration of the switch
allows the IP address of the switch to be automatically assigned by a DHCP
(Dynamic Host Configuration Protocol) server on the local area network.
If a DHCP server does not exist on the network and two minutes have elapsed since
the switch was powered on, the IP address of the switch defaults to 192.168.100.16
and the subnet mask defaults to 255.255.255.0.
You can access the configuration utility from a Web browser or from the Crestron
Toolbox:
• You can access the configuration utility from a Web browser if you know
the IP address or host name of the switch.
NOTE: The default host name of the switch is CEN-SWPOE-24.
• You can access the configuration utility from the Crestron Toolbox if the
switch is configured to operate in DHCP mode (default configuration). The
Crestron ToolBox automatically discovers the IP address of the switch. For
additional information, refer to “Using Crestron ToolBox” on page 12.
Using a Web Browser
To access the configuration utility from a Web browser:
1. Start your Web browser.
2. Go to the IP address or host name of the switch.
NOTE: If the default Web management port number of 80 has been
changed, you must append the port number to the IP address by entering a
colon followed by the new port number. If, for example, the IP address is
192.168.100.16 and the Web management port number has been changed
from 80 to 150, go to http://192.168.100.16:150.
The user name and password window opens, allowing you to log in to the
switch. For log-in information, refer to “Logging In to the Switch” on page
12.
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24-Port Managed PoE Switch Crestron CEN-SWPOE-24
Using Crestron ToolBox
NOTE: To use Crestron Toolbox to access the configuration utility of the switch,
the Universal Plug and Play (UPnP) Ethernet protocol configuration setting of the
switch must be enabled. The UPnP protocol is enabled by default.
To access the configuration utility from Crestron Toolbox:
1. Open Crestron Toolbox.
2. From the Tools menu, select Device Discovery Tool.
NOTE: You can also access the Device Discovery Tool by clicking the
Device Discovery Tool icon ( ) in the toolbar.
NOTE: The security software running on your computer may send you a
program alert regarding the attempt of Crestron Toolbox to connect to the
network. You must allow the connection so that the Device Discovery Tool
can be used.
3. From the device list on the left side of the screen, select the UPnP name of
the switch. The default UPnP name is CEN-SWPOE-24.
4. The user name and password window opens, allowing you to log in to the
switch. For log-in information, refer to “Logging In to the Switch” below.
Logging In to the Switch
The user name and password window allows you to log in to the switch.
User Name and Password Window
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Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
To log in to the switch:
1. Enter the user name and password. The default user name is admin, and the
default password is admin.
NOTE: The user name and password are case sensitive.
NOTE: For enhanced security, it is recommended that you change the
default user name and password. For information about changing the user
name and password, refer to “Password” on page 16.
2. Click OK. The home screen of the switch opens, allowing you to select the
desired functions.
Navigating the Configuration Utility
The home menu provides six main selections: Home, Status, General, TCP/IP,
Port, and Port Mirroring. The Status and General selections include the following
subselections.
• The Status selection provides a subselection that allows access to the
System Log and Port.
• The General selection provides subselection for the Password,
Management, Time Settings, and Firmware Tools.
The following illustrates the menu tree of the home menu.
Home Menu Tree
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24-Port Managed PoE Switch Crestron CEN-SWPOE-24
Home
The home screen displays system information about the switch. It also contains a
Restart button to restart the switch remotely. The following image shows an example
of a typical system home screen.
Home Screen
The home screen displays the following information:
• Product name: Displays the switch’s name.
• Firmware version: Displays the version of the switch.
• MAC address: A unique address assigned to the switch.
• System up time (hr:min:sec): Length of time the switch has been up.
TCP/IP Settings:
NOTE: If the “TCP/IP Addressing” screen is set to Obtain from a DHCP
Server, this section will state “Get from the DHCP server”. Refer to “TCP/IP”
section on page 22.
• IP address: Displays the IP address assigned to the switch. The default IP
address is 192.168.100.16.
• Subnet mask: Displays the address code that determines the size of the
network.
• Default Gateway: Displays the address of the switch that forwards internet
traffic from your local area network.
• Host Name: Displays the host name of the switch.
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Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Advanced Settings:
• Time zone: Displays the time zone setting of the switch.
• SNMP: Displays the SNMP status, either Enabled or Disabled.
• UPNP: Displays the UPNP status, either Enabled or Disabled.
Status
The Status selection displays system log information and the port status of all ports
on the switch. Refer to the sections below for more information.
System Log
To view the system log information, click the Status selection and then click the
System Log subselection. The “System Log” screen opens. The screen can be
viewed for troubleshooting purposes.
“System Log” Screen Example
Port
To view the configuration of the ports on the switch click on the Status selection,
and then click on the Port subselection. The following image shows an example of
the “Port Status” screen.
“Port Status” Screen Example
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24-Port Managed PoE Switch Crestron CEN-SWPOE-24
General
The General selection provides four subselections for Password, Management,
Time Settings, Firmware Tools settings.
Password
To configure user name and password settings, click the General selection and then
click the Password subselection. The “Password” screen opens.
“Password” Screen
For security reasons the username and password should be changed for the switch.
Refer to the configuration guidelines that follow when setting up a new username
and password.
NOTE: The user name and password are case sensitive.
Current user: Displays the current username of the switch.
Old password: Enter the old password.
New user name: Enter a new user name.
New password: Enter a new password.
New password again: Re-enter the new password for confirmation of the password.
Enter all information and then press the Save button, a login prompt will appear
asking for the new username and password. Make sure to note the new user name
and password.
Management
To manage the Universal Plug and Play (UPnP), SNMP and Syslog remote logging
configuration settings of the switch, click the General selection and then click the
Management subselection. The “Management” screen opens.
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Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
“Management” Screen Example
UPNP
To manage the UPnP configuration settings select either of the following from the
drop-down list:
• Enabled: (Default setting) Allows the switch to transmit UPnP broadcast
messages. As a result, the Device Discovery Tool of the Crestron Toolbox
can find the switch on the network.
Device friendly name: (Applicable only when UPnP is enabled) In the text
box, enter a name for the switch to distinguish it from other devices that
appear in the device list of the Device Discovery Tool. The default setting is
CEN-SWPOE-24.
• Disabled: Prevents the switch from transmitting UPnP broadcast messages
and therefore increases device security on an insecure network.
NOTE: Disabling UPnP prevents the Device Discovery Tool of the
Crestron Toolbox from finding the switch on the network. As a result, the
configuration utility of the switch can only be accessed from a Web
browser.
NOTE: Disabling UPnP does not affect communication between Crestron
devices and the control system.
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24-Port Managed PoE Switch Crestron CEN-SWPOE-24
SNMP
Simple Network Management Protocol (SNMP) is a communication protocol
designed specifically for managing devices on a network. SNMP is used to
configure devices for proper operation in a network environment, as well as to
monitor them to evaluate performance or detect potential problems.
Traps indicating status changes are issued by the switch to specified trap managers.
You must specify trap managers so that key events are reported by this switch to
your management station. You can specify up to five management stations that will
receive authentication failure messages and other notification messages from the
switch.
To configure SNMP, select either of the following from the drop-down list:
• Disabled: Prevents the switch from being administered remotely via
SNMP.
• Enabled: (Default setting) Allows the switch to be administered remotely
via SNMP.
Assign read-only or read-write privileges to the SNMP manager (applicable only if
SNMP is enabled):
• Read-only community: In the text box, enter a text string that functions as a
password to allow the SNMP manager to read configuration settings from
the switch. The default setting is public. The read-only community text
string appears as solid black circles.
• Read-write community: In the text box, enter a text string that functions as
a password to allow the SNMP manager to read configuration settings from
and write configuration settings to the switch. The default setting is private.
The read-write community text string appears as solid black circles.
Syslog Remote Logging
Save/Cancel
Add entries to the SNMP Trap Table to send notification events from the switch to
SNMP managers when a significant event occurs:
1. Click the checkbox to activate trap notification.
2. In the IP Address column, enter the IP address of the device to which the
switch is to send traps.
3. In the Community column, enter a read-only or read-write community text
string.
The Syslog sends critical logging information about the switch and connected
devices to a remote server. To turn on this function select Enabled from the drop
down menu and enter a server address in the Remote Logging Server field.
Click Save to save the changes, the switch must be restarted for changes to take
effect. Click Save and Restart to save changes. Click Cancel to discard changes.
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Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Time Settings
Time settings on the CEN-SWPOE-24 are managed by Simple Network Time
Protocol (SNTP), which allows the switch to set its internal clock based on periodic
updates from a time server (SNTP or NTP). Maintaining an accurate time on the
switch enables the system log to record meaningful dates and times for event entries.
To configure the SNTP server on the switch click the General selection and then
click the Time Settings subselection. The “Time Settings” screen opens. Refer to the
image on the following page for more details.
“Time Settings” Screen Example
Enter the appropriate time information for the entry boxes:
• Time zone: Select the time zone where the switch will be located.
• NTP server: Enter the name of the time server.
• Reboot function: Allows the switch to reset daily. Select either Enable or
Disable.
• Reboot time: If Reboot function is set to Enable, enter the time of day
(using 24-hour clock) that you wish he switch to reboot.
Click Save to save the changes or Cancel to discard changes.
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24-Port Managed PoE Switch Crestron CEN-SWPOE-24
Firmware Tools
NOTE: Upgrading the firmware of the switch may cause a loss of the current
configuration settings; therefore, be sure to back up the current configuration settings
before upgrading the firmware. For information about backing up configuration
settings, refer to “Configuration Backup” on page 21.
The firmware tools page allows upgrading, restoring, backing up and resetting the
firmware back to factory defaults. To change firmware settings of the switch, click
the General selection and then click the Firmware Tools subselection. The
“Firmware Tools” screen opens. Refer to the image below for visual guidance.
“Firmware Tools” Screen Example
Firmware Upgrade
Configuration Restore
20 • 24-Port Managed PoE Switch: CEN-SWPOE-24 Operations Guide – DOC. 7036A
Refer to the configuration guidelines that follow.
In the text box, enter the path to the filename containing the new firmware by
clicking Browse… and selecting the firmware file from the Crestron website.
NOTE: Before upgrading the firmware, be sure to read the release notes.
Click Upgrade to start the firmware upgrade process. The switch reboots
automatically when the upgrade is complete.
If necessary, you can restore previous switch configuration settings from your PC.
To restore previous configuration settings, click the General selection and then click
the Firmware Tools subselection. The “Firmware Tools” screen opens.
In the text box, enter the path to the filename containing previous configuration
settings by clicking Browse… and selecting the configuration file from your
computer’s hard drive.
Click Restore to start the configuration restore process. The switch reboots
automatically when the configuration restore process is complete.
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Configuration Backup
Configuration Reset
(Factory Defaults)
You can back up the file containing current configuration settings of the switch to
your computer’s hard drive. The default configuration filename is config.bin.
To back up current configuration settings, click the General selection and then click
the Firmware Tools subselection. The “Firmware Tools” screen opens.
Back up the current configuration as follows:
1. Click Back Up to open the “File Download” window.
2. Click Save to open the “Save As” window.
3. Navigate to the location on your hard drive to which you want to save the
configuration file.
4. (Optional) In the File name text box, enter a new file name if desired.
5. Click Save to open the “Download Complete” window and save the file.
6. When the download is complete, click Close.
You can then load the configuration file to any CEN-SWPOE-24 switch by
performing the configuration restore process discussed in “Configuration Restore”
section on page 20.
To restore factory default configuration settings of the switch, click the General
selection and then click the Firmware Tools subselection. The “Firmware Tools”
screen opens.
• Click Reset to restore factory default settings.
• Click Reset But Keep Network Settings to restore factory default settings
except the network settings.
NOTE: The switch restarts to allow the factory default settings to take effect. After
15-20 seconds, the home screen opens to allow you to review the settings.
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 21
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
TCP/IP
The default IP of the CEN-SW-POE-26 is 192.168.100.16 and the login ID is admin
and the password is admin. To manually configure IP settings, you need to set an IP
address and subnet mask that is compatible with your network. You may also need to
establish a default gateway between the switch and management stations that exist
on another network segment. An IP address may be used for management access to
the switch over your network. To edit the TCP/IP settings, click the TCP/IP
selection. The “TCP/IP Addressing” screen opens, as shown in the illustration below.
“TCP/IP Addressing” Screen Example
The “TCP/IP Addressing” screen displays the following information.
• Method of obtaining an IP address: Either obtain the IP by Set Manually
(Static), or Obtain from a DHCP Server (Dynamic Host Configuration
Protocol). If DHCP is enabled, IP will not function until a reply has been
received from the server. Requests will be broadcast periodically by the
switch for an IP address. DHCP values can include the IP address, subnet
mask, and default gateway.
• IP address: Address of the VLAN interface that is allowed management
access. Valid IP addresses consist of four numbers, 0 to 255, separated by
periods (default is 192.168.100.16).
• Subnet mask: This mask identifies the host address bits used for routing to
specific subnets (default is 255.255.255.0).
• Default gateway: IP address of the gateway router between this device and
management stations that exist on other network segments (default is
192.168.100.254).
• Host name: Specifies the name of the switch. Enter the name into the field
provided, up to 255 characters long (default is CEN-SWPOE-24).
• DNS suffix: Fully qualified domain name consisting of the hostname and
the DNS suffix.
Click Save to save your configuration, the switch must be restarted later for the
changes to take effect. Click Save and Restart to save your configuration and restart
the switch, or press Cancel to revert to previously established settings.
22 • 24-Port Managed PoE Switch: CEN-SWPOE-24 Operations Guide – DOC. 7036A
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Port
The switch can be set to manually configure the speed, duplex mode, and flow
control used on specific ports, or use auto-negotiation to detect the connection
settings used by the attached device. Use the full-duplex mode on ports whenever
possible to double the throughput of switch connections. Flow control should also be
enabled to control network traffic during periods of congestion and prevent the loss
of packets when port buffer thresholds are exceeded. The switch supports flow
control based on the IEEE 802.3x standard.
To configure the ports on the switch click the Port selection. The “Port” screen
opens. Refer to the image below for visual guidance.
“Port” Screen Example
Port Settings
This screen allows you to edit the current Port Setting, including Speed/Duplex and
Flow Control; the screen also displays the Link Status.
This screen also allows you to edit the PoE setting by selecting the status of the ALL
PoE Ports drop down and the Mode drop down selections. The status of the port can
also be viewed.
The Port Setting column displays the following information for each port on the
switch.
• Port: Display port number 1 to 24 and uplink Gigabits port 25 and 26.
• Speed/Duplex: Select the speed of the port:
⇒
Auto: Detects the speed of the connected device and assigns the
correct speed and duplex to the port.
⇒
10M Half: Enables 10 Mbps half-duplex operation.
⇒
10M Full: Enables 10 Mbps full-duplex operation.
⇒
100M Half: Enables 100 Mbps half-duplex operation.
⇒
100M Full: Enables 100 Mbps full-duplex operation.
⇒
1000M Half: Enables 1000 Mbps half-duplex operation (port 25
and 26 only).
⇒
1000M Full: Supports 1000 Mbps full-duplex operation (port 25
and 26 only).
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 23
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
• Flow Control: Select IEEE 802.3x function by Enable or Disable.
• Link Status: Indicates the link status, Down is no connection.
PoE Settings
The PoE Setting column displays the following information for each port on the
switch.
• All PoE Ports: Select Enable (default setting) to allow the switch to
provide power to all PoE ports on the switch. Select Disable to turn off
power to all ports.
• Mode: Select Auto (Default setting) to allow the switch to enable or disable
power to the port. Select Shutdown to remove power from the port. The
Status column displays the power status to the port; either On or Off.
Click Save to save your configuration.
Port Mirroring
The switch can mirror traffic from any source port to the MGMT port for real-time
analysis. It can then attach a logic analyzer or RMON probe to the target port and
study the traffic crossing the source port in an unobtrusive manner.
NOTE: Monitor port speed should match or exceed source port speed, otherwise
traffic may be dropped from the monitor port.
All mirror sessions have to share the same destination port.
To configure port mirroring in your network, click the Port Mirroring selection.
The “Port Mirroring” screen opens.
Set the following attributes for port mirroring using the “Port Mirroring” screen.
• Source Port: Select the port whose traffic will be monitored.
• Method: Allows you to select which traffic to mirror to the target port,
Disable, Rx, Tx or Tx & Rx (input and output).
Specify the Source Port and the Method that the ports will be mirrored, then click
Save.
“Port Mirroring” Screen Example
To enable port mirroring press the recessed MGMT PORT MIRROR button. All
ports selected in the “Port Mirroring” screen will be mirrored to the MGMT port.
The MGMT PORT MIRROR LED will illuminate. Click Save to save your
configuration.
24 • 24-Port Managed PoE Switch: CEN-SWPOE-24 Operations Guide – DOC. 7036A
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Problem Solving
Troubleshooting
The following table provides corrective action for possible trouble situations. If
further assistance is required, please contact a Crestron customer service
representative.
CEN-SWPOE-24 Troubleshooting
TROUBLE POSSIBLE CAUSE(S) CORRECTIVE ACTION
PWR LED does
not illuminate.
LINK/ACT LED
does not
illuminate.
Loss of
functionality due
to electrostatic
discharge.
Device is not receiving
power.
Device is not properly
connected.
Improper grounding.
Verify power cable
connection.
Verify connections.
Check that all ground
connections have been
made properly.
Reference Documents
The latest version of all documents mentioned within the guide can be obtained from
the Crestron website (www.crestron.com/manuals
product manuals arranged in alphabetical order by model number.
List of Related Reference Documents
DOCUMENT TITLE
CAT5 Wiring Reference Guide
). This link will provide a list of
Further Inquiries
If you cannot locate specific information or have questions after reviewing this
guide, please take advantage of Crestron’s award winning customer service team by
calling Crestron at 1-888-CRESTRON [1-888-273-7876].
You can also log onto the online help section of the Crestron website
(www.crestron.com/onlinehelp
users will need to establish a user account to fully benefit from all available features.
) to ask questions about Crestron products. First-time
Future Updates
As Crestron improves functions, adds new features and extends the capabilities of
the CEN-SWPOE-24, additional information may be made available as manual
updates. These updates are solely electronic and serve as intermediary supplements
prior to the release of a complete technical documentation revision.
Check the Crestron website periodically for manual update availability and its
relevance. Updates are identified as an “Addendum” in the Download column.
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 25
24-Port Managed PoE Switch Crestron CEN-SWPOE-24
Appendix: Fast Ethernet and Gigabit Ethernet
About Fast Ethernet
As the demand for desktop video, multimedia development, imaging, and other
speed-intensive applications continues to rise, the need for high performance, fault
tolerant LAN technology will become more critical.
Standard Ethernet, which has been the most popular networking technology to date
with a maximum data throughput of 10 Mbps (Megabits per second), is becoming
insufficient to handle the latest video, multimedia, and other speed intensive
client/server LAN applications.
Among the solutions to the problem of network speed, Fast Ethernet has emerged as
the most viable and economical. Capable of sending and receiving data at 100Mbps,
it is more than fast enough to handle even the most demanding video and other
real-time applications.
Although there are a number of different competing Fast Ethernet implementations,
100BASE-TX is by far the most popular. Operating on two pairs of Category 5
(CAT5) unshielded twisted-pair (UTP) cabling, 100BASE-TX supports high speed
signaling and is relatively inexpensive. Because it uses four wires for data
transmission and the same packet format, packet length, error control, and
management information as 10BASE-T, 100BASE-TX can be made to communicate
with slower 10BASE-T equipment when routed through a switch.
This backwards compatibility is one of 100BASE-TX’s major advantages over other
forms of Fast Ethernet; it allows critical, speed dependent network segments to be
upgraded to 100BASE-TX speeds as needed without re-wiring, refitting, and
retraining an entire site. Networks can now mix both slow and fast network segments
for different users or departments.
About Gigabit Ethernet
Gigabit Ethernet runs at speeds of 1 Gbps (Gigabit per second), ten times faster than
100 Mbps Fast Ethernet, but it still integrates seamlessly with 100 Mbps Fast
Ethernet hardware. Users can connect Gigabit Ethernet hardware with either fiber
optic cabling or copper CAT5 cabling, with fiber optics more suited for network
backbones. As the new Gigabit standard gradually integrates into existing networks,
current computer applications will enjoy faster access time for network data,
hardware, and Internet connections.
26 • 24-Port Managed PoE Switch: CEN-SWPOE-24 Operations Guide – DOC. 7036A
Crestron CEN-SWPOE-24 24-Port Managed PoE Switch
Return and Warranty Policies
Merchandise Returns / Repair Service
1. No merchandise may be returned for credit, exchange or service without prior authorization
from CRESTRON. To obtain warranty service for CRESTRON products, contact an
authorized CRESTRON dealer. Only authorized CRESTRON dealers may contact the factory
and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying
the nature of the problem, name and phone number of contact person, RMA number and
return address.
2. Products may be returned for credit, exchange or service with a CRESTRON Return
Merchandise Authorization (RMA) number. Authorized returns must be shipped freight
prepaid to CRESTRON, 6 Volvo Drive, Rockleigh, N.J. or its authorized subsidiaries, with
RMA number clearly marked on the outside of all cartons. Shipments arriving freight collect
or without an RMA number shall be subject to refusal. CRESTRON reserves the right in its
sole and absolute discretion to charge a 15% restocking fee plus shipping costs on any
products returned with an RMA.
3. Return freight charges following repair of items under warranty shall be paid by CRESTRON,
shipping by standard ground carrier. In the event repairs are found to be non-warranty, return
freight costs shall be paid by the purchaser.
CRESTRON Limited Warranty
CRESTRON ELECTRONICS, Inc. warrants its products to be free from manufacturing defects in materials
and workmanship under normal use for a period of three (3) years from the date of purchase from
CRESTRON, with the following exceptions: disk drives and any other moving or rotating mechanical
parts, pan/tilt heads and power supplies are covered for a period of one (1) year; touchscreen display and
overlay components are covered for 90 days; batteries and incandescent lamps are not covered.
This warranty extends to products purchased directly from CRESTRON or an authorized CRESTRON
dealer. Purchasers should inquire of the dealer regarding the nature and extent of the dealer’s warranty, if
any.
CRESTRON shall not be liable to honor the terms of this warranty if the product has been used in any
application other than that for which it was intended or if it has been subjected to misuse, accidental
damage, modification or improper installation procedures. Furthermore, this warranty does not cover any
product that has had the serial number altered, defaced or removed.
This warranty shall be the sole and exclusive remedy to the original purchaser. In no event shall
CRESTRON be liable for incidental or consequential damages of any kind (property or economic damages
inclusive) arising from the sale or use of this equipment. CRESTRON is not liable for any claim made by a
third party or made by the purchaser for a third party.
CRESTRON shall, at its option, repair or replace any product found defective, without charge for parts or
labor. Repaired or replaced equipment and parts supplied under this warranty shall be covered only by the
unexpired portion of the warranty.
Except as expressly set forth in this warranty, CRESTRON makes no other warranties, expressed or
implied, nor authorizes any other party to offer any warranty, including any implied warranties of
merchantability or fitness for a particular purpose. Any implied warranties that may be imposed by law are
limited to the terms of this limited warranty. This warranty statement supersedes all previous warranties.
Trademark Information
All brand names, product names and trademarks are the sole property of their respective owners. Windows is a registered trademark
of Microsoft Corporation. Windows 95/98/Me/XP/Vista/7 and Windows NT/2000 are trademarks of Microsoft Corporation.
Operations Guide – DOC. 7036A 24-Port Managed PoE Switch: CEN-SWPOE-24 • 27
Crestron Electronics, Inc. Operations Guide – DOC. 7036A
15 Volvo Drive Rockleigh, NJ 07647 (2028290)
Tel: 888.CRESTRON 08.10
Fax: 201.767.7576 Specifications subject to
www.crestron.com change without notice.
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