User manual SMC 7824M/ESW

[. . . ] TigerAccessTM 10/100 Fast Ethernet Switch 24 10/100BASE-TX ports 2 10/100/1000BASE-T ports shared with SFP slots 2 module slots for Gigabit extender modules Non-blocking switching architecture Spanning Tree Protocol, RSTP and MSTP Up to 12 LACP or static 8-port trunks Layer 2/3/4 CoS support through eight priority queues Layer 3/4 traffic priority with IP Precedence and IP DSCP Full support for VLANs with GVRP and QinQ IGMP multicast filtering and snooping Support for jumbo frames up to 9 KB Manageable via console, Web, SNMP/RMON Security features: ACL, RADIUS, 802. 1X Installation Guide SMC7824M/ESW TigerAccessTM 10/100 Installation Guide From SMC's Tiger line of feature-rich workgroup LAN solutions 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 January 2007 Pub. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice. [. . . ] Slide the SFP transceiver into the slot until it clicks into place. 3-8 GROUNDING THE CHASSIS Notes: 1. The switch does not need to be powered off before installing or removing a transceiver. However, always first disconnect the network cable before removing a transceiver. SFP transceivers are not provided in the switch package. Grounding the Chassis Before powering on the switch, ground the switch to earth as described below. Ensure that the rack on which the switch is to be mounted is properly grounded and in compliance with ETSI ETS 300 253. Ensure that there is a good electrical connection to the grounding point on the rack (no paint or isolating surface treatment). This circuit is connected to the single-hole grounding terminal on the back of the switch. The surface area around this terminal is not painted in order to provide for a good connection. Attach a 6 AWG stranded copper wire to the grounding terminal on the switch. Caution: The earth connection must not be removed unless all supply connections have been disconnected. 3-9 INSTALLING THE SWITCH Connecting to a Power Source This switch supports both AC and DC power conversion modules. Connecting DC Power When a -48 VDC power conversion module is installed in the switch, an external DC power supply must be connected to the DC power connection on the left side of the front panel. Warning: Before wiring the DC plug or connecting power to the switch, ensure that power to the feed lines is turned off at the supply circuit breaker or disconnected from the power bus. To provide adequate circuit protection between the DC power supply and the switch, all intermediate wiring and circuitry should be rated to carry a load at least two times the maximum rating for this switch (see "Power Supply" on page C-2). The wiring between the DC power supply and the switch must be stranded copper wire within the range of 10 to 24 AWG. Wiring for the power input terminals on the switch are described below. Wiring of the DC power supply terminals depends on the equipment in use on the local site, but should be wired in such a way as to meet the input requirements shown in Figure 3-7 "DC Plug Connections" on page 3-12. The wiring should also be color coded according to local standards to ensure that the input power and ground lines can be easily distinguished. When using two power conversion modules with the switch, either AC or DC modules can be used ­ both AC, both DC, or one AC and one DC. 2. 3. 4. 3-10 CONNECTING TO A POWER SOURCE To connect the switch to a power source: 1. First verify that the external DC power supply can provide -36 to -72 VDC, 4 A minimum for the -48 VDC power conversion module. Use a wire stripper to carefully strip about a half an inch of the outer insulation off the end of each wire, exposing the copper core. If possible, solder the exposed braid of wire together for better conductivity. Connect the external power feed and power ground/return lines to the DC plug (provided with the switch) as shown below. The power leads are labeled on the front of the chassis, above the DC power connection block. [. . . ] CSMA/CD CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the communication method employed by Ethernet, Fast Ethernet, or Gigabit Ethernet. End Station A workstation, server, or other device that does not forward traffic. Ethernet A network communication system developed and standardized by DEC, Intel, and Xerox, using baseband transmission, CSMA/CD access, logical bus topology, and coaxial cable. The successor IEEE 802. 3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber, thin coax and twisted-pair cable. [. . . ]