CentreCOM® AT-FS718 AT-FS724 Fast Ethernet Switches INSTALLATION GUIDE PN 613-10774-00 Rev.
Copyright 1998 Allied Telesyn International, Corp. 950 Kifer Road, Sunnyvale, CA 94086 USA All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn International, Corp. CentreCom is a registered trademark of Allied Telesyn International, Corp. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners. Allied Telesyn International, Corp.
Radiated Energy STANDARDS: This product meets the following standards U.S. Federal Communications Commission RADIATED ENERGY Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
7DEOH#RI#&RQWHQWV Preface .................................................................................................................................................................................................................. vii Purpose of This Guide ......................................................................................................................................................................................... vii How This Guide is Organized ..............................
Table of Contents Port Configuration .......................................................................................................................................................................................... 2-12 Steps To View Port Status Or Change Port Configuration ....................................................................................................... 2-12 Port Configuration Defaults and Descriptions .........................................................................
3UHIDFH 3XUSRVH#RI#7KLV#*XLGH This guide is written for network administrators who are responsible for installing and maintaining the AT-FS718 and AT-FS724 switches. +RZ#7KLV#*XLGH#LV#2UJDQL]HG This guide consists of the following sections: Chapter 1, “Hardware Description,” describes the features and functions of the switches and the media dependent adapters (MDAs).
3UHIDFH 'RFXPHQW#&RQYHQWLRQV The conventions used in this guide are as follows: ❑ Notes: Note A note provides additional information. ❑ Warnings: Warning A warning indicates that performing or omitting a specific action may result in bodily injury. ❑ Cautions: Caution A caution indicates that performing or omitting a specific action may result in equipment damage or loss of data.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH (QDEOLQJ#DQ 2SWLRQ An enabled option is by preceded a > symbol. Enabled configurations also appears darker. For example, the following screen shows a port that is enabled: > Enable this port Disable (partition) this port If you enable another option, the > symbol moves to the new option. For example: Enable this port > Disable (partition) this port 0HQXV Menus and submenus are represented in courier type.
3UHIDFH :KHUH#WR#)LQG#5HODWHG#*XLGHV Allied Telesyn wants our customers to be well informed by providing the most up-to-date and most easily accessible way to find our guides and other technical information. Visit our website at: www.alliedtelesyn.com and download this guide, or view product and technical information.
#&KDSWHU 4 +DUGZDUH#'HVFULSWLRQ This chapter describes the hardware features of the following products: ❑ The base switch models: AT-FS718 and AT-FS724 ❑ The uplink options, also called media dependent adapters (MDAs): AT-A10 and AT-A11. 7KH#%DVH#6ZLWFK#0RGHOV The AT-FS718 and AT-FS724 switches are standalone, unmanaged Fast Ethernet switches that provide 16 or 24 10Base-T/100Base-TX station ports.
+DUGZDUH#'HVFULSWLRQ Figure 1-1 shows the 24-port model that has no uplink option slots.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH +DUGZDUH#)HDWXUHV Table 1-1 summarizes the basic features of each switch model.
+DUGZDUH#'HVFULSWLRQ 6ZLWFKLQJ#0RGHV Each switch port has the following user-selectable switching modes: ❑ Store-and-forward (default) ❑ Fragment-free cut-through for 100 Mbps ports Network administrators can configure the sending port with the appropriate switching mode to optimize performance and enable full-error checking. The modes reduce network bottlenecks by offering low latency wire rate switching for the port.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 3K\VLFDO#'HVFULSWLRQ The switches have the following major front panel components: ❑ 16 or 24 Ethernet 10Base-T/100Base-TX unshielded twisted pair (RJ45) ports ❑ RS232 (DB9-F) connector for port configuration, and diagnostics or software update ❑ Reset button ❑ System and port status LEDs ❑ Two slots, Port A and Port B, for optional 100Base-TX or 100Base-FX backbone connectivity on the AT-FS718.
+DUGZDUH#'HVFULSWLRQ 3RUW#/('V Each switch port and uplink port is associated with two LEDs indicating the following: ❑ Valid physical link with a device and packets being received, as indicated by the top row of LEDs ❑ Speed of transmission, 10 Mbps or 100 Mbps, as indicated by the bottom row of LEDs Figure 1-5 is a close-up of the AT-FS718 port LEDs. (The AT-FS724 does not have uplink port LEDs.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 6\VWHP#/('V The switch system LEDs are POWER and FAULT. They indicate the overall operating status of the switch. More details on the LEDs are shown in Table 2-1 on page 2-4. $RZHU &RQQHFWRU The switch has a single power supply in the rear panel, which has autoswitch AC inputs. The input voltage range is from 100-240 VAC, 50/60 Hz. To de-energize the equipment, disconnect the power cord.
+DUGZDUH#'HVFULSWLRQ 7KH#0HGLD#'HSHQGHQW#$GDSWHUV#+0'$V, Allied Telesyn offers optional MDAs, shown in Figure 1-6. You may install either uplink option in one or both Port A or Port B on the AT-FS718. Table 1-2 describes the MDAs.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH :KHUH#WR#*R#1H[W Proceed to Chapter 2 for details on how to install the switch and the MDAs.
&KDSWHU 5 ,QVWDOODWLRQ This chapter describes the following procedures: ❑ Switch installation on the desktop or in the 19-inch rack ❑ MDA installation ❑ Device installation ❑ Terminal connection for port configuration, diagnostics or software update 9HULI\LQJ#
,QVWDOODWLRQ 6DIHW\#,QIRUPDWLRQ Refer to Appendix A for translated safety statements in your language. Warning ELECTRIC SHOCK HAZARD To prevent ELECTRIC shock, do not remove cover. No user-serviceable parts inside. This unit contains HAZARDOUS VOLTAGES and should only be opened by a trained and qualified technician. To avoid the possibility of ELECTRIC SHOCK disconnect electric power to the product before connecting or disconnecting the LAN cables. ' 8 Laser Warning Class 1 Laser product.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 3UHSDULQJ#WKH#6LWH Make sure that you follow common sense installation site requirements and observe the following: ❑ Make sure that the switch’s power is accessible and cables can be connected easily. ❑ Cabling must be away from sources of electrical noise such as radios, transmitters, broadband amplifiers, power lines, and fluorescent fixtures. ❑ Air flow around the switch and through its vents on the side and rear cannot be restricted.
,QVWDOODWLRQ ,QVWDOOLQJ#WKH#6ZLWFK#RQ#WKH#'HVNWRS 1. Place the switch on a level, secure surface. 2. Apply power to the switch as follows: Caution The power cord is used as a disconnect device. To de-energize equipment, disconnect the power cord. ' 10 Attach the power cord to the unit and plug it in the power source. Verify that the POWER LED lights green. See Table 2-1. As power is applied to the switch, the FAULT LED flashes as the switch runs internal self testing.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH ,QVWDOOLQJ#WKH#6ZLWFK#LQ#WKH#5DFN Caution Do not use power tools to perform this installation. 1. Remove all cables and power cord from the switch (if previously attached). 2. Remove the snap-on plastic feet, as shown in Figure 2-1. Figure 2-1 Removing the Feet Caution Air vents must not be blocked and must have free access to the room ambient air for cooling. ' 13 3.
,QVWDOODWLRQ 5. Apply power to the unit as follows: Caution Power cord is used as a disconnection device. To de-energise equipment disconnect the power cord. ' 10 Attach the power cord to the unit and plug it in the power source. Verify that the POWER LED lights green. See Table 2-1 on page 2-4. As power is applied to the switch, the FAULT LED flashes as the switch runs internal self testing. If the POWER LED does not light green, see Chapter 3, "Troubleshooting", for further information. 6.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH ,QVWDOOLQJ#WKH#0HGLD#'HSHQGHQW#$GDSWHUV#+0'$V, If you have the AT-FS718 switch, you may order and install one or both types of MDAs in any combination: ❑ The AT-A10 with the 100Base-TX port ❑ The AT-A11 with the 100Base-FX port These MDAs are installed in either the Port A or Port B slot on the switch. Contact your Allied Telesyn representative for ordering information.
,QVWDOODWLRQ 50-pin plug Slot 100AT-A BA 10 SE -T X X Standoff Figure 2-3 Guiding the MDA’s Standoff Into Its Slot 4. Slide the MDA into its empty slot making sure that the standoff is aligned properly. See Figure 2-3. 5. Push the MDA into position so that the front panel contacts the front of the switch’s chassis. See Figure 2-4. 50-pin receptacle PO RT A 100 BA S E-T X 100AT-A BA 10 SE -T X X 2X 10B AS Figure 2-4 Connecting the 50-pin Plug 6.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 8. Connect the data cable. Verify that the uplink’s LEDs on the switch front panel lights green. The LEDs light as described in Table 2-2. Table 2-2 Uplink Port LEDs Uplink Port LED (Port A or B) LINK/RECEIVE (port, top row) 100M (port, bottom row) Color Green Amber State Description On There is a physical link with the device. Flashing The port is receiving packets. Off No link. On The port is operating at 100 Mbps.
,QVWDOODWLRQ &RQQHFWLQJ#'HYLFHV#WR#WKH#6ZLWFK The switch supports connectivity with DTEs such as workstations and servers, and also DCEs such as hubs, routers, and other switches. The switch supports devices that operate at fixed speeds, 10 Mbps or 100 Mbps, or auto-negotiating, 10/100 Mbps. When connecting devices, consider the following: ❑ For dedicated 10Base-T connections, use Category 3, 4, or 5 Unshielded Twisted pair (UTP) cables with maximum length of 328 ft (100 m).
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 6HWWLQJ#8S#7KH#7HUPLQDO#IRU#3RUW#&RQILJXUDWLRQ/#DQG#'LDJQRVWLFV#RU# 6RIWZDUH#8SGDWH 1. Connect your terminal to the RS232 connector on the switch’s front panel. Use an RS232, DB-9 straight-through serial cable. 2. Access your terminal emulation program, i.e., VT100. 3. Set your terminal emulator to the following: — Data bits: 8 — Stop bits: 1 — Parity: None — Baud rate: 9600 4. Press RETURN. 5. Press RESET on the switch front panel.
,QVWDOODWLRQ 3RUW#&RQILJXUDWLRQ Port configuration defines the status and modes for each port. The default configuration and a description of each setting follow the configuration steps below. 6WHSV#7R#9LHZ 3RUW#6WDWXV#2U &KDQJH#3RUW &RQILJXUDWLRQ Connect and setup a terminal as described on page 2-11. The switch displays the Port Status menu and provides access to the Port Configuration menu for a port. 1. The Port Status displays a list of ports.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 3. To change the port configuration, highlight an option and press RETURN. For example: Select Full duplex and press RETURN. The switch displays the Port Configuration with Auto-negotiate disabled, as shown below.
,QVWDOODWLRQ Configure the port name at the prompt as follows: a) Press RETURN at the highlighted area to insert a type-in field and enter a text string. Type-in field Port Name Menu Port name -> Return to Port Status Menu ... b) Enter a name of up to 20 characters in the Port name field. — To delete the existing information, enter one or more space characters and press RETURN. — If you press RETURN before entering any characters, the previous configuration value remains unchanged.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 3RUW &RQILJXUDWLRQ 'HIDXOWV#DQG 'HVFULSWLRQV The AT-FS724 has 24 station ports.
,QVWDOODWLRQ Half-duplex: You may use this setting if the connected device supports half-duplex; that is, transmit and receive communications do not happen simultaneously. Switching mode Ports are set to store-and-forward as a default. With the available switching options, you can optimize performance and enable error checking.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 'LDJQRVWLFV#0HQX The Diagnostics Menu provides selection of diagnostic tests, XMODEM download of updated system (switch) software, or switch terminal speed (Baud rate). Also, you can set the switch to the factory default settings. 6WHSV#WR#8VH#WKH 'LDJQRVWLFV 0HQX Connect and setup a terminal as described on page 2-11. After reset, the switch runs diagnostics and displays the following: Press any key to run diagnostics or reload system software 1.
,QVWDOODWLRQ Exit Diagnostics Menu Use option B:Boot Window to escape from the Diagnostics Menu when you are done. This is the normal way to leave the menu. Software update Use option X: to download updated system (switch) software using XMODEM. Note The transfer speed of the download is based on the Baud rate. See "Terminal speed (switch)" on page 18 before using to change the switch terminal speed to 19200 for optimal transfer rate.
$70)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH :KHUH#WR#*R#1H[W You can visit our Allied Telesyn Technical Support website at www.alliedtelesyn.com for current product information, including any software update.
&KDSWHU 6 7URXEOHVKRRWLQJ This chapter provides information on how to detect and resolve problems with the AT-FS718 and AT-FS724 switches. $W#WKH#)LUVW#6LJQ#RI#D#3UREOHP Perform the following tasks when you first become aware of a problem with the switch: ❑ Verify correct network cabling. See “Network Cabling Problems” on page 3-2. ❑ Use the switch LEDs to confirm operation or a problem. See Table 3-1 on page 3-3.
7URXEOHVKRRWLQJ 1HWZRUN#&DEOLQJ#3UREOHPV Poor network performance or no communications may occur as a result of improper cable length or type. If you have 100Base-TX (Fast Ethernet), some network problems may be related to exceeding cabling distances. Refer to the standard IEEE 802.3u, Clause 29.3.1.2 on Round Trip Collision Delay.
$70;)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH 6ZLWFK#/('V The switch LEDs indicate proper operation or problems with the port and power. Table 3-1 describes the switch LEDs. Table 3-1 Switch LEDs LED POWER (system) FAULT (system) Link/Receive (port, top row) 100M (port, bottom row) Color Green Red Green Amber State Description On The switch is receiving power, voltage is within the acceptable range, and the power supply is working. Off No power. On The switch is malfunctioning.
7URXEOHVKRRWLQJ &RPPRQ#3UREOHPV This section lists common possible sources of error and actions required to fix them. /,1.25(&(,9( /('#RQ#$Q\#3RUW LV#2II This may indicate: ❑ A loose data cable. ❑ A wrong cable type used or maximum cable length exceeded. ❑ The device at the other end of the connection is turned off. ❑ The data cable is not wired correctly (straight / crossed) for the device. ❑ The network administrator manually disabled the port through the Port Configuration menu.
$70;)6:4;#DQG#$70)6:57#,QVWDOODWLRQ#*XLGH ❑ If the port is Disabled, someone has manually disabled the port for a specific reason. Verify that the reason no longer exists before you enable this port. 5. Verify that the Link LED is On. For the AT-FS718 with the AT-A11, the transmit pair must be connected to the receive pair on the attached device. If the Link LED is Off, reverse the transmit and receive pair at the attached device. 6. Contact Allied Telesyn Technical Support for help.
#&KDSWHU 7 6ZLWFK#&RQILJXUDWLRQV This chapter provides network configuration examples using the switch models described in this guide. 7KH#6ZLWFK#LQ#D#6WDQGDORQH#&RQILJXUDWLRQ Figure 4-1 shows the AT-FS724 used as a standalone switch for a group of heavy traffic users. Switching is brought to the desktop either through a single end-station per switch port or through a multi-port hub. A 100 Mbps server is connected to a port, providing end stations high-speed accessibility to its applications.
6ZLWFK#&RQILJXUDWLRQV 7KH#6ZLWFK#LQ#:RUNJURXS#&RQILJXUDWLRQV Figure 4-2 shows how the different switches fit into a large corporate network with a Fast Ethernet infrastructure. A switch is located on each floor and servers are centralized in one room.
$SSHQGL[ $ 7UDQVODWHG#6DIHW\#,QIRUPDWLRQ IMPORTANT: This appendix contains multiple-language translations for the safety statements in this guide. WICHTIG: Dieser Anhang enthält Übersetzungen der in diesem Handbuch enthaltenen Sicherheitshinweise in mehreren Sprachen. VIGTIGT: Dette tillæg indeholder oversættelser i flere sprog af sikkerhedsadvarslerne i denne håndbog. BELANGRIJK: Deze appendix bevat vertalingen in meerdere talen van de veiligheidsopmerkingen in deze gids.
7UDQVODWHG#6DIHW\#,QIRUPDWLRQ RADIATED ENERGY U.S. Federal Communications Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
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$SSHQGL[ % 7HFKQLFDO#6SHFLILFDWLRQV Table B-1 lists the technical specifications for the AT-FS718 and AT-FS724 switches. Table B-1: Technical Specifications Physical Specifications Dimensions (H x W x D) Weight Base Unit 2.55 in x 16.9 in x 14.5 in 11 lbs (5 kg) (6.48 cm x 42.93 cm x 36.83 cm) Required ventilation on all sides 7.
7HFKQLFDO#6SHFLILFDWLRQV Table B-2 shows the pin assignments for the switches’ RJ45 connectors. Table B-2: RJ45 Pin Assignments Pin Number Function 1 RD+ 2 RD- 3 TD+ 4 Unused 5 Unused 6 TD- 7 Unused 8 Unused Table B-3 lists the specifications for the AT-A10 and AT-A11 media dependent adapters. The MDAs are installed in the AT-FS718 switch’s uplink slots. Table B-3: AT-A10 and AT-A11 Specifications AT-A10 AT-A11 Physical Dimensions (H x W x D) 0.85 in x 3 in x 4.5 in (2.16 cm x 7.
$SSHQGL[#&# 6ZLWFK#'HIDXOW#6HWWLQJV This appendix lists the switch default software settings as configured by the factory. You can return the switch to the default settings (including terminal speed of 9600 Baud rate). See “Diagnostics Menu” on page 2-17 for details.
,QGH[ Numerics 100 Mbps operation see cut-through 100M (port speed) LED, 2-4, 3-3 A ANSI terminal, see DEC VT100 terminal emulation architecture clear-channel, 1-3 shared memory, 1-3 AT-A10 and AT-A11 installation, 2-7 standoff, 2-7 AT-FS718 and AT-FS724 switches, 1-1 auto-negotiation, 1-1, 1-3, 2-15 B bandwidth capability, 1-1 Baud rate, 2-11, 2-17, 2-18 Boots, 2-17 C cabling requirements, 2-10, 3-2 clear-channel architecture, 1-3 configuration port name, 2-13 quitting, 2-14 terminal setup, 2-11 configura
Index mode cut-through (for 100 Mbps operation), 1-4, 2-16 store-and-forward, 1-4, 2-16 switching, 2-16 transmission, 2-15 models FS724 and FS718, 1-2 E emulation, terminal, viii enable or disable the port, 2-15 enabled option, 2-12 entering, variables, ix exit Diagnostics Menu, 2-18 F factory defaults, 2-18 failure indication, 3-5 FAULT LED, 2-4, 3-3, 3-5 features hardware, 1-1, 1-3 fragment free see cut-through front panel description, 1-5 Full-duplex, 2-15 full-duplex, 1-3, 2-10 N name, port, 2-16 O o
Index U R rack installation, 2-5 RECEIVE (/LINK) LED, 2-4 Reset 1-6 RESET button, 3-5 revision, diagnostics, 2-17 Round Trip Collision Delay, 3-2 RS232 connector, 1-6, 2-11 uplink port (A or B) LED, 2-9 V variables, entering, ix W workgroup, 4-2 X XMODEM, 2-17, 2-18 S safety information, A-1 safety precautions, 2-2 settings terminal, 2-11 setup terminal, for port configuration, 2-11 shared memory architecture, 1-3 site preparation, 2-3 software update download, 2-18 software update, 2-18 specifications,
