Allied Telesis AT-8600 Series Application guide

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. be liable for any incidental,
special, indirect, or consequential damages whatsoever, including but not limited to lost
profits, arising out of or related to this manual or the information contained herein, even
if Allied Telesis Inc. has been advised of, known, or should have known, the possibility
of such damages.
All company names, logos, and product designs that are trademarks or registered
trademarks are the property of their respective owners.

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Contents
Models Covered by this Document .................................................................... 4
Hardware Description ....................................................................................... 4
Switch Overview ......................................................................................... 4
AT-8624T/2M Model .................................................................................. 6
AT-8624PoE Model ..................................................................................... 6
AT-8648T/2SP Model .................................................................................. 6
Implementing PoE ............................................................................................. 7
LEDs ................................................................................................................. 7
Expansion Options .......................................................................................... 11
Switch Start-Up .............................................................................................. 12
Ports ............................................................................................................... 15
RS-232 Terminal Port (ASYN0) .................................................................. 15
RJ-45 Ports ............................................................................................... 16
Redundant Power Supply (RPS) ....................................................................... 17
Cables ............................................................................................................ 19
Terminal and Modem Cables .................................................................... 19
Cable Guidelines ...................................................................................... 21
Using AT-TFTP Server ....................................................................................... 21
Using Windows Terminal and Hyperterminal ................................................... 22
Test Facility ..................................................................................................... 25
10/100 Ethernet LAN Port Tests ................................................................ 26
Testing Switch Interfaces ................................................................................. 27
Troubleshooting .............................................................................................. 27
Common Problems and Solutions ............................................................. 28
For More Information ...................................................................................... 29

4AT-8600 Series
C613-03080-00 REV G
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 descriptions for expansion modules are in the Expansion
Modules Installation Guide. These references can be found on the CD-ROM
provided with your switch, or can be downloaded from
www.alliedtelesis.com/support/software.
Switch Overview
RJ-45 copper ports ensure industry-standard compatibility, while two
expansion module bays add configuration flexibility.
Dimensions ■Height = 44 mm (plus 5.5 mm if the rubber feet are used)
■Width = 440 mm (excluding rack-mounting brackets)
■Depth:
• AT-8624T/2M = 223mm
• AT-8624PoE = 408mm
• AT-8648T/2SP = 254mm
■Weight = not more than 7 kg (excluding power cord and expansion
modules)
Mounting system ■1 RU 19-inch rack mounting
Environmental
conditions
■Operating temperature range: 0 to 40º C (32 to 104º F)
■Storage temperature range: -25 to 70º C (-13 to 158º F)
■Operating humidity range: 5% to 80% non-condensing
■Storage humidity range: 5 to 95% non-condensing
Regulatory
standards
■EMC: EN55022, AS/NZS CISPR22 class A, FCC CFR47 Part 15 Class A,
and VCCI Class A
■Immunity testing to EN55024
■Flicker and Harmonics testing to EN61000-3-2 and EN61000-3-3
■Safety: UL60950-1, CAN/CSA-C22.2 No. 60950-1-03, EN60950-1,
EN60825-1
LEDs ■Ethernet port and System status LEDs
■Mode button
■For a complete list of LEDs and their functions, see “LEDs” on page 7.

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Power Supply Unit ■Universal 100/240 VAC 50/60 Hz input
■Redundant DC Power connection
Switching core ■Advanced ASIC switch chip
■Wire-speed L2 and L3 IP Switching
Processing core ■200 MHz CPU
■16 MBytes RAM
■8 MBytes flash memory
Asynchronous serial
port
■Up to 115 kbps
■Standard DB9 female RS-232 connector
Expansion module
bays
Expansion module bays are included on the AT-8624T/2M and AT-8624PoE
switches.
■2 bays for expansion modules
■Support for gigabit Ethernet expansion modules

6AT-8600 Series
C613-03080-00 REV G
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
AT-8624PoE Model
• 24-port 10BASE-T/100BASE-TX (RJ-45 connectors)
• Two expansion module bays
• Auto-negotiating advanced fast Ethernet switch
Figure 2: AT-8624TPoE front and rear panels
AT-8648T/2SP Model
• 48-port 10BASE-T/100BASE-TX (RJ-45 connectors)
• Two Gigabit uplink ports, SFP or copper
• Auto-negotiating advanced fast Ethernet switch
Figure 3: AT-8648T/2SP front and rear panels
1 3 5 7 9 11 13 15 17 19 21 23
2 4 6 8 1012141618202224
LINK
MODE
LINK
MODE
FAULT
RPS
MASTER
PWR
13 57 911
2 4 6 8 10 12
13 15 17 19 21 23
14 16 18 20 22 24
26
COL
100
FULL
ACT
AT-8624T/2M Layer 3 Fast Ethernet Switch
MODE RS-232
TERMINAL PORT
STATUS
25
1 3 5 7 9 11131517192123
2 4 6 8 10 12 14 16 18 20 22 24
FAULT
RPS
MASTER
PWR
MODE
1357911
2 4 6 8 10 12
13 15 17 19 21 23
14 16 18 20 22 24
STATUS
26
RS-232
TERMINAL PORT
COL HALF DUP FULL DUP
ACT100 LINK 10 LINK ACT
PD ON MAX CURRENTPD ERR
AT-8624POE Layer 3 Fast Ethernet Switch
25
SFP
50
STATUS
49
LINK 49R MODE
LINK 50R MODE
LINK
LINK
MODE
COL
SPD
FDX
ACT
FLT
MSTR
RPS
PWR
CLASS 1
LASER PRODUCT
DO NOTSTARE
INTOBEAM
AT-8648T/2SP Layer 3 Fast Ethernet Switch

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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. The power and the network
traffic can coexist on the same strands simultaneously.
Powered devices that comply with the IEEE 802.3af standard support both
methods of power delivery. As long as a powered device is compliant with the
standard, it should be able to receive its power from the switch.
LEDs
The following tables outline how the switch and expansion modules report
faults and operational activities. Expansion modules are optional and can be
purchased separately. Contact an authorised Allied Telesis distributor or
reseller, or visit www.alliedtelesis.com for more information on expansion
modules.
System LEDs
Use the Mode Select button to toggle the Mode LEDs to the desired state.
Toggling the Mode Selection button does not affect the normal switch
operations.
LED State Description
FAULT Off Switch operation is normal.
Red The switch or management software is malfunctioning.
1 flash A switch fan has failed.
3 flashes The main PSU has failed and the RPS is now providing
power.
4 flashes The RPS Monitor is set to ON, and the RPS is not
functioning, either because it has failed or has been
switched off.
5 flashes The RPS Monitor is set to ON, but the RPS is not
connected.
7 flashes For the AT-8624T/2M and AT-8624PoE switches: An
expansion module has been inserted or removed while
the switch is powered on.
MASTER Off This LED is not supported.
RPS Green An optional redundant power supply is connected to the
switch.
OFF There is no optional redundant power supply connected
to the switch.
PWR Green The switch is receiving power and the voltage is within
the acceptable range.
Off The switch is not receiving power.

8AT-8600 Series
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AT-8624T/2M switch
Link and Mode LEDs
AT-8624PoE switch
Link and Mode LEDs
LED State Description
LINK OFF There is no link between the port and the end-
node.
Green A valid link has been established between the
port and the end-node.
Mode - COL OFF No data collisions are occurring on the port.
Flashing Green Data collisions are occurring on the port.
Mode - 100 OFF The port is operating at 10 Mbps.
Green The port is operating at 100 Mbps.
Mode - FULL OFF The port is operating in half-duplex mode.
Green The port is operating in full-duplex mode.
Mode - ACT OFF There is no activity on the port.
Flashing Green There is activity on the port. It is transmitting
and/or receiving data.
LED State Description
L/A Status
(Top LED)
OFF There is no link between the port and the end-
node.
Green The port is operating at 100 Mbps.
Flashing Green There is activity on the port. It is transmitting
and/or receiving data at 100 Mbps.
Amber The port is operating at 10 Mbps.
Flashing
Amber
There is activity on the port. It is transmitting
and/or receiving data at 10 Mbps.
Mode LEDs
(Bottom LED)
OFF Either DC mode or PoE mode.
D/C Mode OFF There is no link between the port and the end-
node.
Green The port is operating in full duplex mode.
Amber The port is operating in half-duplex mode.
Flashing
Amber
The port is operating in half-duplex mode and
data collisions are occurring on the port.
PoE Mode OFF There is no powered device detected.
Green The end node is a powered device and the port
is providing power to it.
Amber The port is experiencing a problem providing
PoE to the end node.
Flashing
Amber
The port is connected to a powered device but
providing power to it would exceed the
maximum PoE power budget of the switch.

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AT-8648T/2SP switch
Link and Mode LEDs
AT-8648T/2SP switch
10/100/1000Base-T
and SFP LEDs
AT-A45/xx Series
Expansion Module
LEDs
LED State Description
LINK OFF There is no link between the port and the end-
node.
Green A valid link has been established between the
port and the end-node.
Mode - COL OFF No data collisions are occurring on the port.
Flashing Green Data collisions are occurring on the port.
Mode - SPD OFF The port is operating at 10 Mbps.
Green The port is operating at 100 Mbps.
Mode - FDX OFF The port is operating in half-duplex mode.
Green The port is operating in full-duplex mode.
Mode - ACT Flashing Green There is activity on the port
OFF There is no activity on the port.
LED State Description
LINK OFF There is no link between the port and the end-
node.
Green A valid link has been established between the
port and the end-node.
Mode - COL OFF No data collisions are occurring on the port.
Flashing Green Data collisions are occurring on the port.
Mode - SPD OFF The port is operating at 10/100 Mbps.
Green The port is operating at 1000 Mbps.
Mode - FDX OFF The port is operating in half-duplex mode.
Green The port is operating in full-duplex mode.
Mode - ACT Flashing Green There is activity on the port
OFF There is no activity on the port.
LED State Description
LINK Steady green The port has established a valid link with the
end node.
Flashing green The port is transmitting and/or receiving data.
Duplex Steady green The port is operating in full duplex.
Steady amber The port is operating in half duplex.
Flashing amber Collisions are occurring on the port.

10 AT-8600 Series
C613-03080-00 REV G
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.
ACTIVITY Green The port is transmitting and/or receiving data.
LED State Description
LINK Steady green The port has established a valid 1000 Mbps link
with the end node.
ACTIVITY Flashing green The port is transmitting and/or receiving data.
LED State Function
10 Green The port is operating at 10Mbps.
Off The port is not operating at 10Mbps.
100 Green The port is operating at 100Mbps.
Off The port is not operating at 100Mbps.
Both 10 and 100 Green The port is operating at 1000Mbps.
FDX Green The port is operating in full duplex mode.
Off The port is operating in half duplex mode.
ACT Flashing green There is data activity on the port.
Off There is no data activity on the port.