Table of Contents D-Link Web Smart Switch User Manual Table of Contents Table of Contents ............................................................................................................................................. i About This Guide............................................................................................................................................. 1 Terms/Usage.........................................................................................................
Table of Contents D-Link Web Smart Switch User Manual Configuration Backup & Restore .............................................................................................................. 22 Firmware Backup and Upload .................................................................................................................. 22 Tool Bar > Smart Wizard..............................................................................................................................
Table of Contents D-Link Web Smart Switch User Manual Command Line Interface............................................................................................................................... 59 To connect a switch via TELNET:................................................................................................................ 59 Logging on to the Command Line Interface:................................................................................................ 59 CLI Commands: .
About This Guide D-Link Web Smart Switch User Manual About This Guide This guide provides instructions to install the D-Link Gigabit Web Smart PoE Switch DGS-1210-10P, how to use the SmartConsole Utility, and to configure Web-based Management step-by-step. Note: The model you have purchased may appear slightly different from the illustrations shown in the document.
1 Product Introduction 1 D-Link Web Smart Switch User Manual Product Introduction Thank you and congratulations on your purchase of D-Link Web Smart Switch Products. D-Link's next generation Web Smart Ethernet switch series blends plug-and-play simplicity with exceptional value and reliability for small and medium-sized business (SMB) networking.
1 Product Introduction D-Link Web Smart Switch User Manual the switches with other third-party devices for management in an SNMP-enabled environment. D-Link Web Smart Switches also come with the D-View plug-in module that works with D-View 6 SNMP Management Software, and provides easy-to-use graphic interface and facilitates the operation efficiency.
2 Hardware Installation 2 D-Link Web Smart Switch User Manual Hardware Installation This chapter provides unpacking and installation information for the D-Link Web-Smart Switch. Step 1: Unpacking Open the shipping carton and carefully unpack its contents. Please consult the packing list located in the User Manual to make sure all items are present and undamaged. If any item is missing or damaged, please contact your local D-Link reseller for replacement.
2 Hardware Installation D-Link Web Smart Switch User Manual Then, use the screws provided with the equipment rack to mount the switch in the rack. Figure 5 – Mount the Switch in the rack or chassis Please be aware of following safety Instructions when installing: A) Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient.
2 Hardware Installation D-Link Web Smart Switch User Manual Figure 6 –Plugging the switch into an outlet Power Failure As a precaution, the switch should be unplugged in case of power failure. When power is resumed, plug the switch back in.
3 Getting Started 3 D-Link Web Smart Switch User Manual Getting Started This chapter introduces the management interface of D-Link Web-Smart Switch. Management Options The D-Link Web Smart Switch can be managed through any port on the device by using the Web-based Management, or through any PC using the SmartConsole Utility. Each switch must be assigned its own IP Address, which is used for communication with the Web-Based Management or a SNMP network manager.
3 Getting Started D-Link Web Smart Switch User Manual Login Web-based Management In order to login and configure the switch via an Ethernet connection, the PC must have an IP address in the same subnet as the switch. For example, if the switch has an IP address of 10.90.90.90, the PC should have an IP address of 10.x.y.z (where x/y is a number between 0 ~ 254 and z is a number between 1 ~ 254), and a subnet mask of 255.0.0.0.
3 Getting Started D-Link Web Smart Switch User Manual Option 1: Follow these steps to install the SmartConsole Utility via the autorun program on the installation CD. 1. Insert the Utility CD into your CD-Rom/DVD-Rom Drive. 2. The autorun program will appear automatically. 3. Click on the ”Install SmartConsole Utility” button and an installation wizard will guide you through the process. 4.
4 SmartConsole Utility 4 D-Link Web Smart Switch User Manual SmartConsole Utility The D-Link SmartConsole Utility allows the administrator to quickly discover all D-Link smart switches, which are in the same domain of the PC, collect traps and log messages, and quick access to basic configurations of the switch. The SmartConsole Utility consists of three parts, Device Configurations at the top, Device List as the main body, and SmartConsole Settings at the left.
4 SmartConsole Utility D-Link Web Smart Switch User Manual Web-Smart Switch will not be discovered. Log Click this icon to launch the Log window. Click View Log to show the events of the SmartConsole Utility and the device. Date/Time indicates when the message was received, IP denotes where it comes from and Status shows the content of this log message. Click Clear Log to clear all log entries. Click OK to exit. Figure 12 – SmartConsole Log Trap Click this icon to launch the Trap window.
4 SmartConsole Utility D-Link Web Smart Switch User Manual Figure 14 – SmartConsole File Monitor Save: Records the setting of the Device List as default for the next time the SmartConsole Utility is used. Monitor Save As: Records the setting of the Device List in an appointed filename and file path. Monitor Load: Manually load a Device List setting file. Help Click this icon to launch the SmartConsole Info window.
4 SmartConsole Utility D-Link Web Smart Switch User Manual Device Configuration The Device Configuration in the SmartConsole Utility has five icons: Device Settings Device Password Manager Multi Firmware Upgrade DHCP Refresh Web Access and the , , device buttons for the Device List. Device Settings Select a switch from the Device List. Click on this icon to launch the Device Settings window.
4 SmartConsole Utility D-Link Web Smart Switch User Manual Device Password Manager Select a switch from the Device List. Click on this icon to launch the Device Password Manager window. Here you can enter a new password and confirm it. Figure 17 – SmartConsole Device Password Manager Multi Firmware Upgrade Select one or many switches of the same model name from the Device List. Click on this icon to launch the Firmware Upgrade window.
4 SmartConsole Utility D-Link Web Smart Switch User Manual Figure 19 – DHCP Refresh Web Access Select a switch from the Device List. Click this icon to launch your Internet browser (eg. The Internet Explorer). Here you can configure the Switch through the Web-based Management utility. You may also get into the Web-based Management by double-clicking the device in the device list.
4 SmartConsole Utility D-Link Web Smart Switch User Manual Monitor: Checking the Monitor box and the SmartConsole will collect the trap and log data from the device. in the monitor means the device was discovered by SmartConsole. Click the icon to have the device The to continue updating the information, such as system log or trap to the SmartConsole Utility. The icon will . When the device was detected as not reachable, the icon will change to .
5 Configuration 5 D-Link Web Smart Switch User Manual Configuration The features and functions of the D-Link Web Smart Switch can be configured for optimum use through the Web-based Management Utility. Smart Wizard Configuration After a successful login, the Smart Wizard will guide you through essential settings of the D-Link Web Smart Switch. If you do not plan to change anything, click Exit to leave the Wizard and enter the Web Interface.
5 Configuration D-Link Web Smart Switch User Manual SNMP Settings The SNMP Setting allows you to quickly enable/disable the SNMP function and configure the SNMP community name. For the complete SNMP function, please check “Setup Menu > System > SNMP Settings” in the Web Interface. The default SNMP Setting is Disabled. Click Enabled, enter Community names, and then click Apply to make it effective.
5 Configuration D-Link Web Smart Switch User Manual System Settings You can manually change the system IP Address, Subnet Mask, and Gateway address by selecting Static and clicking Apply. You can further configure and read more about the above settings in the “Setup Menu > System > System Settings”. The default setting of System IP address is Static. Select DHCP to have the switch obtain an IP address from a DHCP server in the network.
5 Configuration D-Link Web Smart Switch User Manual Web-based Management After clicking the Exit button in Smart Wizard you will see the screen below: Tool Bar Function Tree Figure 27 – Web-based Management Main Configuration Screen The above image is the Web-based Management screen. The three main areas are the Tool Bar on top, the Function Tree, and the Main Configuration Screen.
5 Configuration D-Link Web Smart Switch User Manual Tool Bar > Save Menu The Save Menu provides Save Configuration and Save Log functions. Figure 28 – Save Menu Save Configuration Select to save the entire configuration changes you have made to the device to switch’s non-volatile RAM. Figure 29 – Save Configuration Save Log Save the log entries to your local drive and a pop-up message will prompt you for the file path. You can view or edit the log file by using text editor (e.g. Notepad).
5 Configuration D-Link Web Smart Switch User Manual Figure 33 – Tool Menu > Reset System Reboot Device Provide a safe way to reboot the system. Click Reboot to restart the switch. Figure 34 – Tool Menu > Reboot Device Configuration Backup & Restore Allow the current configuration settings to be saved to a file (not including the password), and if necessary, you can restore configuration settings from this file. Two methods can be selected: HTTP or TFTP.
5 Configuration D-Link Web Smart Switch User Manual Figure 36 – Tool Menu > Firmware Backup and Upload HTTP: Backup or upgrade the firmware to or from your local PC drive. Click Backup to save the firmware to your disk. Click Browse to browse your inventories for a saved firmware file. Click Upgrade after selecting the firmware file you want to restore. TFTP: Backup or upgrade the firmware to or from a remote TFTP server.
5 Configuration D-Link Web Smart Switch User Manual Figure 38 – User Guide Micro Site 24
5 Configuration D-Link Web Smart Switch User Manual Function Tree All configuration options on the switch are accessed through the Setup menu on the left side of the screen. Click on the setup item that you want to configure. The following sections provide more detailed description of each feature and function. Figure 39 –Function Tree Device Information The Device Information provides an overview of the switch, including essential information such as firmware & hardware information, and IP address.
5 Configuration D-Link Web Smart Switch User Manual Figure 40 – Device Information System > System Settings The System Setting allows the user to configure the IP address and the basic system information of the Switch. IP Information: There are two ways for the switch to obtain an IP address: Static and DHCP (Dynamic Host Configuration Protocol). When using static mode, the IP Address, Subnet Mask and Gateway can be manually configured.
5 Configuration D-Link Web Smart Switch User Manual System > Trap Settings For SmartConsole By configuring the Trap Setting, it allows SmartConsole Utility to monitor specified events on this Web-Smart Switch. By default, Trap Setting is disabled. When the Trap Setting is enabled, enter the Destination IP address of the managing station that will receive trap information.
5 Configuration D-Link Web Smart Switch User Manual media types. MDI/MDIX: A medium dependent interface (MDI) port is an Ethernet port connection typically used on the Network Interface Card (NIC) or Integrated NIC port on a PC. Switches and hubs usually use Medium dependent interface crossover (MDIX) interface. When connecting the Switch to end stations, user have to use straight through Ethernet cables to make sure the Tx/Rx pairs match up properly.
5 Configuration D-Link Web Smart Switch User Manual The default community strings for the Switch used for SNMP v.1 management access are: Read_Only: The community with read-only privilege allows authorized management stations to retrieve MIB objects. The default name is public. Read_Write: The community with read/write privilege allows authorized management stations to retrieve and modify MIB objects. The default name is private.
5 Configuration D-Link Web Smart Switch User Manual Severity: Specifies the minimum severity from which warning messages are sent to the server. There are three levels. When a severity level is selected, all severity level choices above the selection are selected automatically. The possible levels are: Warning - The lowest level of a device warning. The device is functioning, but an operational problem has occurred. Informational - Provides device information. All - Displays all levels of system logs.
5 Configuration D-Link Web Smart Switch User Manual Figure 48 – Configuration > 802.1Q VLAN > Default Setting Figure 49 – Configuration > 802.1Q VLAN > Add VID Figure 50 – Configuration > 802.1Q VLAN > Example VIDs Figure 51 – Configuration > 802.1Q VLAN > VID Assignments Configuration > Asymmetric VLAN This function is located in the 802.1Q Configuration page. It allows devices in different VLANs to communicate with the servers, firewalls or other shared resources in the shared VLAN.
5 Configuration D-Link Web Smart Switch User Manual PCs 1, 2, and 3 cannot communicate with each other; but all of them need to access the servers or the Internet behind the firewall. Firewall, V1~V4 PC 1 (Port 2, V2) PC 2 (Port 3, V3) PC 3 (Port 4, V4) Server, V1~V4 Figure 52 – Configuration > 802.1Q VLAN > Asymmetric VLAN Example 1. Enable Asymmetric VLAN Enable Asymmetric VLAN and click the Apply button. The overlapping VLAN cannot be configured unless this function is enabled..
5 Configuration D-Link Web Smart Switch User Manual Figure 54 – Configuration > 802.1Q VLAN > Asymmetric VLAN – Create VLANs 3. Configuring the PVID of access VLAN Configure the PVID setting located at the bottom of the VLAN configuration page. The user needs to set the shared set of ports as PVID 1, and the other separated groups of ports (for example, port 2, 3, and 4) as PVID 2, 3 and 4 respectively. The purpose of assigning PVID is to make sure the untagged packets will be transmitted correctly.
5 Configuration D-Link Web Smart Switch User Manual Figure 57 – Configuration > Voice VLAN > Voice VLAN Setting Voice VLAN State: Select to enable or disable Voice VLAN. The default is Disabled. After you enabled Voice VLAN, you can configure the Voice VLAN Global Settings. VLAN ID: The ID of VLAN that you want to assign voice traffic to. You must first create a VLAN from the 802.1Q VLAN page before you can assign a dedicated Voice VLAN. The member port you configured in 802.
5 Configuration D-Link Web Smart Switch User Manual There are some pre-defined OUIs and when the user configures personal OUI, these pre-defined OUIs must be avoided.
5 Configuration D-Link Web Smart Switch User Manual Configuration > Link Aggregation > LACP Port Settings The LACP Port Settings is used to create port trunking groups on the Switch. The user may set which ports will be active and passive in processing and sending LACP control frames Figure 60 – Configuration > Link Aggregation > LACP Port Settings From Port: The beginning of a consecutive group of ports may be configured starting with the selected port.
5 Configuration D-Link Web Smart Switch User Manual Figure 61 – Configuration > IGMP Snooping Configuration By default, IGMP is disabled. If enabled, the IGMP Global Settings will need to be entered: Host Timeout (130-153025 sec): This is the interval after which a learned host port entry will be purged. For each host port learned, a 'Port Purge Timer' runs for 'Host Port Purge Interval'. This timer will be restarted whenever a report message from host is received over that port.
5 Configuration D-Link Web Smart Switch User Manual Figure 63 – Configuration > IGMP Multicast Entry Table Configuration > Port Mirroring Port Mirroring is a method of monitoring network traffic that forwards a copy of each incoming and/or outgoing packet from one port of the Switch to another port, where the packet can be studied. This enables network managers to better monitor network performances.
5 Configuration D-Link Web Smart Switch User Manual Figure 66 – Configuration > Loopback Detection Loopback Detection State: Use the drop-down menu to enable or disable loopback detection. The default is Disabled. Interval (1-32767): Set a Loop detection Interval between 1 and 32767 seconds. The default is 1 seconds. Recover Time (0 or 60-1000000): Time allowed (in seconds) for recovery when a Loopback is detected. The Loop Detection Recover Time can be set at 0 seconds, or 60 to 1000000 seconds.
5 Configuration D-Link Web Smart Switch User Manual If choosing SNTP for the clock source, then the following parameters will be available: SNTP First Server: Specify the IP address of the primary SNTP server from which the system time is retrieved. SNTP Second Server: Specify the IP address of the secondary SNTP server from which the system time is retrieved. SNTP Poll Interval in Seconds (30-99999): Defines the interval (in seconds) at which the SNTP server is polled for Unicast information.
5 Configuration D-Link Web Smart Switch User Manual The IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) evolved from the 802.1D STP standard. RSTP was developed in order to overcome some limitations of STP that impede the function of some recent switching innovations. The basic function and much of the terminology is the same as STP. Most of the settings configured for STP are also used for RSTP.
5 Configuration D-Link Web Smart Switch User Manual An STP Group spanning tree works in the same way as the switch-level spanning tree, but the root bridge concept is replaced with a root port concept. A root port is a port of the group that is elected based on port priority and port cost, to be the connection to the network for the group. Redundant links will be blocked, just as redundant links are blocked on the switch level.
5 Configuration D-Link Web Smart Switch User Manual Like edge ports, P2P ports transition to a forwarding state rapidly thus benefiting from RSTP. A p2p value of false indicates that the port cannot have p2p status. Auto allows the port to have p2p status whenever possible and operate as if the p2p status were true. If the port cannot maintain this status, (for example if the port is forced to half-duplex operation) the p2p status changes to operate as if the p2p value were False.
5 Configuration D-Link Web Smart Switch User Manual From Port / To Port: A consecutive group of ports may be configured starting with the selected port. Type: This drop-down menu allows you to select between RX (receive), TX (transmit), and Both. This setting will determine whether the bandwidth ceiling is applied to receiving, transmitting, or both receiving and transmitting packets. No Limit: This drop-down menu allows you to specify that the selected port will have no bandwidth limit.
5 Configuration D-Link Web Smart Switch User Manual Figure 74 – QoS > DSCP Priority Settings Select QoS Mode: D-Link Smart Switch allows the user to prioritize the traffic based on the 802.1p priority in the VLAN tag or the DSCP (Differentiated Services Code Point) priority in the IP header. Only one mechanism is selected to prioritize the packets at a time. Queuing Mechanism: Select Strict Priority to process the packets with the highest priority first.
5 Configuration D-Link Web Smart Switch User Manual To define a management station IP setting, click the Add Host button and type in the IP address and Subnet mask. Click the Apply button to save your settings. You may permit only single or a range of IP addresses by different IP mask settings, the format can either be 192.168.1.1/255.255.255.0 or 192.168.0.1/24. Please see the example below for permitting the IP range IP Address Subnet Mask Permitted IP 192.168.0.1 255.255.255.0 192.168.0.1~192.168.
5 Configuration D-Link Web Smart Switch User Manual software and the RADIUS server. Depending on the authenticated results, the port is either made available to the user, or the user is denied access to the network. The RADIUS servers make the network a lot easier to manage for the administrator by gathering and storing the user lists. Figure 78 – Security > 802.1X > 802.1X Setting By default, 802.1X is disabled. To use EAP for security, select enabled and set the 802.
5 Configuration D-Link Web Smart Switch User Manual If Auto is selected, it will enable 802.1X and cause the port to begin in the unauthorized state, allowing only EAPOL frames to be sent and received through the port. The authentication process begins when the link state of the port transitions from down to up, or when an EAPOL-start frame is received. The Switch then requests the identity of the client and begins relaying authentication messages between the client and the authentication server.
5 Configuration D-Link Web Smart Switch User Manual Monitoring > Statistics The Statistics screen displays the status of each port packet count. Figure 81 – Monitoring > Statistics Refresh All: Renews the details collected and displayed. Clear All Counters: To reset the details displayed. TxOK: Number of packets transmitted successfully. RxOK: Number of packets received successfully. TxError: Number of transmitted packets resulting in error. RxError: Number of received packets resulting in error.
5 Configuration D-Link Web Smart Switch User Manual Monitoring > Cable Diagnostics The Cable Diagnostics is designed primarily for administrators and customer service representatives to examine the copper cable quality. It rapidly determines the type of cable errors occurred in the cable. Select a port and then click the Test Now button to start the diagnosis. Figure 83 – Monitoring > Cable Diagnostic Test Result: The description of the cable diagnostic results.
5 Configuration D-Link Web Smart Switch User Manual Figure 84 – Monitoring > System Log ID: Displays an incremented counter of the System Log entry. The Maximum entries are 500. Time: Displays the time in days, hours, and minutes the log was entered. Log Description: Displays a description event recorded. Severity: Displays a severity level of the event recorded. Click Refresh to renew the page, and click Clear to clean out all log entries.
5 Configuration D-Link Web Smart Switch User Manual Service Type: Specify the type of service. The possible values are: Any - Indicates ACL action will be on packets from any service type. Ether type - Specifies an Ethernet type for filtering packets. ICMP All - Indicates ACL action will be on packets from ICMP packets. IGMP - IGMP packets can be filtered by IGMP message type. TCP All - Indicates ACL action will be on packets from TCP Packets. TCP Source Port - Matches the packet to the TCP Source Port.
5 Configuration D-Link Web Smart Switch User Manual Delete: To delete an access profile. To manually add a profile, click Add ACL Profile: Figure 87 – Add Access Profile The steps of adding an access profile are described below: 1) After selecting the Profile ID and Frame Type (MAC or IPv4), specify attributes like Untagged/Tagged (for MAC), or ICMP/IGMP/TCP/UDP (for IPv4). Click Select and a simplified frame diagram will be displayed.
5 Configuration D-Link Web Smart Switch User Manual Profile ID: Indicates the corresponding access profile Identification number. Access ID: Indicates the access rule Identification number. Profile Type: Displays the profile type. Summary: Displays the access rule summary. Action: Displays the access rule action. To add a new rule, click Add Rule: Figure 89 – Add Access Rule Profile Information displays the information to which the rule is being added to, including Profile ID and other fields specified.
5 Configuration D-Link Web Smart Switch User Manual NOTE: The switch begins the access rule with the smallest access ID, so be careful in assigning the ID for the expected results. To modify an existing rule, please click on the Access ID hyperlink. Figure 90 – ACL > Access Profile List > Access Rule List ACL > ACL Finder This page is used to help find a previously configured ACL entry.
5 Configuration D-Link Web Smart Switch User Manual Figure 92 – PoE > PoE Port Setting State: Select “Enabled” or “Disabled” to configure PoE function for designated port(s). Default is Enabled. Time Range: Select the PoE time profile configured from Time-Based PoE > Time Range Settings to enable the time-based PoE function on designated port(s). Default setting is N/A. Priority: Configure the power supply priority as “Low”, “Normal”, or “High” on designated port(s). Default is Normal.
5 Configuration D-Link Web Smart Switch User Manual And the Deny low priority port applied the port priority setting configured from PoE port setting page. Default setting is Deny next port. Note: The power management policy is only effective while PoE system entering guard band mode (0 < remainder power <= 7).
5 Configuration D-Link Web Smart Switch User Manual LLDP: When this function is Enabled, the switch can start to transmit, receive and process the LLDP packets. For the advertisement of LLDP packets, the switch announces the information to its neighbor through ports. For the receiving of LLDP packets, the switch will learn the information from the LLDP packets advertised from the neighbor in the neighbor table. Click Apply to make the change effective.
6 Command Line Interface 6 D-Link Web Smart Switch User Manual Command Line Interface The D-Link Web Smart Switch allows a computer or terminal to perform some basic monitoring and configuration tasks by using the Command Line Interface (CLI) via TELNET protocol. To connect a switch via TELNET: 1. Make sure the network connection between the switch and PC is active. 2.
6 Command Line Interface D-Link Web Smart Switch User Manual firmware_fromTFTP Download and install new firmware on the Switch from a TFTP server. cfg_fromTFTP Download a switch configuration file from a TFTP server. tftp://ip-address/ The IP address of the TFTP server. filename The filename of the firmware or switch configuration file on the TFTP server. You need to specify the DOS path if the file is not at the root directory of the TFTP server.
6 Command Line Interface D-Link Web Smart Switch User Manual NOTE: Save your configuration changes before logging out. Ping This command checks if another computer is on the network and listens for connections. You can ping the switch from any IP workstation the switch is connected to through the managed VLAN (VLAN 1 by default), as long as there is a physical path between the switch and the workstation. The terminal interface sends five pings to the target station.
6 Command Line Interface D-Link Web Smart Switch User Manual Figure 101 – The show switch Command Config account admin password The command sets the administrator password. Syntax config account admin password Parameter Parameter Description The new password of the administrator. Save The command saves the configuration changes to the memory.
Appendix A - Ethernet Technology D-Link Web Smart Switch User Manual Appendix A - Ethernet Technology This chapter will describe the features of the D-Link Web Smart Switch and provide some background information about Ethernet/Fast Ethernet/Gigabit Ethernet switching technology. Gigabit Ethernet Technology Gigabit Ethernet is an extension of IEEE 802.
Appendix B - Technical Specifications D-Link Web Smart Switch User Manual Appendix B - Technical Specifications - DGS-1210-10P: 0dB (Fan-less) Operation Temperature 0~40°C Storage Temperature -10~70°C Operation Humidity: 10%~95% RH Storage Humidity: 5%~95% RH Hardware Specifications Key Components / Performance Switching Capacity: - DGS-1210-10P: 20Gbps Max. Forwarding Rate - DGS-1210-10P: 14.
Appendix B - Technical Specifications D-Link Web Smart Switch User Manual Time-based PoE function: Achieve power saving by shutting down power of devices during off working hours VLAN 802.1Q VLAN standard (VLAN Tagging) Up to 256 static VLAN groups Asymmetric VLAN Management VLAN Auto-Voice VLAN QoS (Quality of Service) 802.1p priority, DSCP priority queue mapping Up to 4 queues per port Supports Strict / WRR mode in queue handling Bandwidth Control Security 802.
Appendix C – Rack mount Instructions D-Link Web Smart Switch User Manual Appendix C – Rack mount Instructions Safety Instructions - Rack Mount Instructions - The following or similar rack-mount instructions are included with the installation instructions: A) Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient.