AT-8600 Series Switch Hardware Reference AT-8624T/2M AT-8624PoE AT-8648T/2SP
AT-8600 Series Hardware Reference Document Number C613-03080-00 REV G © 2006-2008 Allied Telesis Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis Inc. Allied Telesis Inc. reserves the right to change specifications and other information in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis Inc.
Hardware Reference 3 Contents Models Covered by this Document .................................................................... 4 Hardware Description ....................................................................................... 4 Switch Overview ......................................................................................... 4 AT-8624T/2M Model .................................................................................. 6 AT-8624PoE Model ......................................
AT-8600 Series Models Covered by this Document This Hardware Reference includes information on the following models: ■ AT-8624T/2M 24-port 10BASE-T/100BASE-TX ■ AT-8624PoE ■ AT-8648T/2SP 48-port 10BASE-T/100BASE-TX The latest Hardware Reference can be found at www.alliedtelesis.com/ support/software. Hardware Description This section provides an overview of the hardware features for AT-8600 Series switches.
Hardware Reference Power Supply Unit Switching core Processing core Asynchronous serial port Expansion module bays C613-03080-00 REV G 5 ■ Universal 100/240 VAC 50/60 Hz input ■ Redundant DC Power connection ■ Advanced ASIC switch chip ■ Wire-speed L2 and L3 IP Switching ■ 200 MHz CPU ■ 16 MBytes RAM ■ 8 MBytes flash memory ■ Up to 115 kbps ■ Standard DB9 female RS-232 connector Expansion module bays are included on the AT-8624T/2M and AT-8624PoE switches.
AT-8600 Series AT-8624T/2M Model • 24-port 10BASE-T/100BASE-TX (RJ-45 connectors) • Two expansion module bays • Auto-negotiating advanced fast Ethernet switch Figure 1: AT-8624T/2M front and rear panels 1 3 5 7 9 11 13 15 17 19 21 AT-8624T/2M Layer 3 Fast Ethernet Switch 23 1 5 7 9 11 13 15 17 19 21 23 LINK 26 25 3 2 4 6 8 10 12 14 16 18 20 22 STATUS RS-232 TERMINAL PORT COL FAULT MODE 100 MASTER LINK FULL RPS MODE ACT PWR 2 24 MODE 4 6 8 1
Hardware Reference 7 Implementing PoE The IEEE 802.3af standard, which is the IEEE standard for PoE, describes two methods for implementing PoE over twisted pair cabling. One method uses the same strands that carry the network traffic and the other the spare strands. The PoE implementation on the AT-8624PoE switch transmits power over the same strands that carry the network traffic (strands 1, 2, 3 and 6). The power transfer does not interfere with the network traffic.
AT-8624T/2M switch Link and Mode LEDs AT-8600 Series LED State Description LINK OFF There is no link between the port and the endnode. Green A valid link has been established between the port and the end-node. OFF No data collisions are occurring on the port. Flashing Green Data collisions are occurring on the port. OFF The port is operating at 10 Mbps. Green The port is operating at 100 Mbps. OFF The port is operating in half-duplex mode.
Hardware Reference AT-8648T/2SP switch Link and Mode LEDs 9 LED State Description LINK OFF There is no link between the port and the endnode. Green A valid link has been established between the port and the end-node. OFF No data collisions are occurring on the port. Flashing Green Data collisions are occurring on the port. OFF The port is operating at 10 Mbps. Green The port is operating at 100 Mbps. OFF The port is operating in half-duplex mode.
AT-8600 Series AT-A46 Expansion Module LEDs AT-A47 Expansion Module LEDs AT-A65 Expansion Module LEDs LED State Description LINK 10 Green The port has established a valid 10 Mbps link with the end node. LINK 100 Green The port has established a valid 100 Mbps link with the end node. Both LINK 10 and LINK 100 Green The port has established a valid 1000 Mbps link with the end node. FULL DUPLEX Green The port is operating in full duplex. OFF The port is operating in half duplex.
Hardware Reference 11 Expansion Options Expansion modules increase switching capacity by providing two extra ports and by allowing switches to be linked together in stacks. Use only the modules in the following table. Expansion Module Port Type Connector Type AT-A45/MT 100Base-FX MT-RJ AT-A45/5C 100Base-FX SC AT-A45/5C-SM15 100Base-FX SC AT-A46 10/100/1000BASE-T RJ-45 AT-A47 1000Base-T (GBIC) GBICs are sold separately. AT-A65 1000Base-X SFP expansion bay, or SFPs are sold separately.
AT-8600 Series Switch Start-Up When the switch starts up following a power cycle or an operator-initiated reboot (using the reset button or restart command), it performs a series of tests and sends messages to the terminal or PC connected to the ASYN0 port. After the switch successfully starts, a prompt is displayed for you to log in. Refer to the Installation and Safety Guide for basic login instructions or to the Getting Started chapter in the Software Reference.
Hardware Reference Regular output 13 The following messages are an example of output from the switch. INFO: INFO: PASS: INFO: INFO: Force INFO: Self tests beginning. RAM test beginning. RAM test, 32768k bytes found. Self tests complete. Downloading switch software. EPROM download (Y) ? Initial download successful. INFO: Initialising Flash File System. INFO: IGMP packet trapping is active for IGMP snooping, L3FILT is activated INFO: Executing configuration script
AT-8600 Series Message Description (Continued) FAIL: BBR test. Error address = location BBR size/location test failed at the given location. The test at this location failed, indicating the end of memory, but a valid location was discovered in the 255 long words following this location. The BBR system must be replaced. Contact your authorised distributor or reseller. FAIL: BBR test, only 16k bytes found The BBR size/location test completed, but only the displayed amount of memory was found.
Hardware Reference 15 Ports This section explains pin assignments for the following: ■ RS-232 Terminal Port (ASYN0) ■ RJ-45 Ports RS-232 Terminal Port (ASYN0) The RS-232 ASYN0 port connects the switch to a management device for initial configuration. This port allows the software on the switch to be accessed from a terminal or a PC running terminal emulation software. The ASYN0 port has an RJ-45 socket with an industry recognised pinout.
AT-8600 Series RJ-45 Ports For 10BASE-T/100BASE-TX connections, a twisted pair cable must be used. Each pair is identified by two different colours. For example, one wire might be red, and the other red with a white stripe. An RJ-45 connector must be fitted to both ends of the cable. The following figure shows the pin layout for RJ-45 connectors.
Hardware Reference 17 For 1000BASE-T RJ-45 cables, all four pairs are used and the cable is wired in a straight-through configuration. The following table lists the pin assignments. End 1 End 2 1 Pair 1+ 1 Pair 1+ 2 Pair 1- 2 Pair 1- 3 Pair 2+ 3 Pair 2+ 6 Pair 2- 6 Pair 2- 4 Pair 3+ 4 Pair 3+ 5 Pair 3- 5 Pair 3- 7 Pair 4+ 7 Pair 4+ 8 Pair 4- 8 Pair 4- Caution Do not plug a phone jack into any RJ-45 port. Doing so could damage the switch.
AT-8600 Series Table 1: RPS connector pin numbers and functions for AT-8624T/2M and AT-8648T/2SP AT-8624PoE pin layout Pin Number Function 11 Ground (+3.3 VDC Return) 12 +3.3 VDC 13 Ground (+3.3 VDC Return) 14 +3.3 VDC 15 +5 VDC 16 Ground (+5 VDC Return) For the AT-8624 PoE switch, the pin layout is different. The molex connector has 15 power pins, plus 2 high current pins. The pin layout is as follows. For the female unit connector: ■ The top row contains 7 pins.
Hardware Reference 19 Cables This section describes how to make cables for connecting switch interfaces to networks, terminals, and printers. Terminal and Modem Cables The following figure shows how to wire cables to connect a standard VT100 compatible terminal, or a modem, to the switch’s RS-232 Terminal Port.
AT-8600 Series The following figure shows the pin wiring diagram for a DCE RS-232 Terminal Port (DB9 female connector) male to male modem cable DB9 Male (to switch/DCE) Not connected → (TXD) ← (RXD) ← (CD) (GND) → (DTR) ← (CTS) → (RTS) (RING) Pin 1 DB9 Male (to modem/DCE) 1 2 3 4 5 6 7 8 9 3 (TXD) 2 (RXD) 1 (DCD) 5 (GND) 4 (DTR) 8 (CTS) 7 (RTS) 9 6 Not connected Pin 5 Pin 5 Pin 1 Cable Pin 6 Pin 9 Pin 9 DB9 Male Pin View Notes: (1) (2) Pin 6 DB9 Male Pin View → Output from switch; ← Inp
Hardware Reference 21 Cable Guidelines The following table lists port, connector, and cable combinations for each model.
AT-8600 Series Enter a path name in the "Restrict to directory" field to prevent unauthorised access to private directories. AT-TFTP Server uses the specified directory even when file requests contain references to other directories. To prevent files from being written to the PC, click the Read only checkbox. To use the PC to archive scripts created using the switch's create config command, click the Read Write checkbox. Click the OK button when you finish. 3.
Hardware Reference 23 2. 3. C613-03080-00 REV G In the Connection Description dialog box: • Enter a name for the connection, such as Admin. • Select an icon from the scrollable list and click the OK button. In the “Connect using” field on the Connect To dialog box, select the COM port on the PC used to connect to the switch. and click the OK button.
C613-03080-00 REV G AT-8600 Series 4. In the COMn Properties dialog box, set port parameters as follows, and click the OK button. 5. From the main HyperTerminal window, select Properties from the File menu. Click the Settings tab, and set the Properties dialog box as follows.
Hardware Reference 25 6. Click ASCII Setup to display the ASCII Setup dialog box, and ensure the following options are not selected: • Echo typed characters locally • Append line feeds to incoming line ends Set other parameters as necessary and click the OK buttons on both dialog boxes to close them. 7. Save the current session by selecting Save from the File menu on the main HyperTerminal window. This creates a connection icon with the name you assigned in the HyperTerminal group.
AT-8600 Series 10/100 Ethernet LAN Port Tests A loopback plug is required to run the first part of the Ethernet LAN test. See “Testing Switch Interfaces” on page 27 for details of how to make a loopback plug. To start an Ethernet interface test, use the command: enable test int=portn where n is the Ethernet interface number. The test runs about 4 minutes.
Hardware Reference 27 Testing Switch Interfaces Loopback plugs are used in conjunction with Test Facility software to test the physical interfaces on the switch (see the section “Test Facility” on page 25 of this Reference, and the Test Facility chapter of the AT-8600 Series Software Reference). The purpose of a loopback plug is to connect the output pins on the interface to the input pins so that any data transmitted over the interface is looped back and received at the same interface.
AT-8600 Series Common Problems and Solutions Power LED is off If the power LED is off, it may indicate the following: ■ a loose power cord ■ a power supply failure Perform the following steps in sequence: L/A LED on a port is off 1. Check that the power cord connections are secure. 2. Check that all switches and circuit protection devices are in the ON position. 3. Ensure that the supply voltage is within the operational range (110/240 VAC 50/60 Hz).
Hardware Reference 29 If you cannot access the switch’s software because of a faulty RS-232 Terminal Port connection, you can still manage the switch via Telnet or SNMP until the problem is fixed. Additional resources 4. Unplug the switch and then plug it in again. If an RPS unit is present, you will also have to disconnect and reconnect the RPS unit. 5. Download the latest software release. See the AT-8600 Series Software Reference for more information on how to obtain the latest software release.
AT-8600 Series 4. To browse PDF documents, use any of the following to page through a document: • toolbar buttons, such as the Next Page button • keyboard shortcuts, such as arrow keys • commands from the Document menu • mouse wheel To go to a specific section or topic, click a bookmark, thumbnail, or hypertext link. Use the Search command to search for keywords or phrases. For more information about using the Adobe Acrobat Reader, select Adobe Reader Help from the Help menu. 5.
