Cabletron Systems 9000 User Manual

SmartSwitch 9000

9T122-08

Token Ring Module

User’s Guide

903number

i

Notice

Notice

Cabletron Systems reserves the right to make changes in specifications and other information
contained in this document without prior notice. The reader should in all cases consult Cabletron
Systems to determine whether any such changes have been made.

The hardware, firmware, or software described in this manual is subject to change without notice.

IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT,
SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED
TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION
CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR
SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.

© Copyright February 1998 by:

Cabletron Systems, Inc.
P.O. Box 5005
Rochester, NH 03867-5005

All Rights Reserved
Printed in the United States of America

Order Number: 9031359-02

SPECTRUM , Remote LANVIEW and LANVIEW are registered trademarks and SmartSwitch and
MicroLAN are trademarks of Cabletron Systems, Inc.

ii

Notice

FCC Notice

This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.

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.
This equipment uses, generates, and can radiate radio frequency energy and if not installed in
accordance with the operator’s manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause interference in which case the user
will be required to correct the interference at his own expense.

WARNING: Changes or modifications made to this device which are not expressly approved by the

party responsible for compliance could void the user’s authority to operate the equipment.

VCCI Notice

This equipment is in the 1st Class Category (information equipment to be used in commercial and/or
industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference
by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial
and/or industrial areas.

Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be
caused to radios and TV receivers, etc.

Read the instructions for correct handling.

Notice

DOC Notice

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables
aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada.

iii

Notice

iv

Chapter 1 Introduction

Features........................................................................................................................... 1-1

Related Manuals............................................................................................................ 1-4

Getting Help ..................................................................................................................1-4

Chapter 2 Installing the SmartSwitch 9000 Module

Unpacking the Module................................................................................................. 2-1

Installing an TPIM ........................................................................................................ 2-1

User Accessible Components ...................................................................................... 2-3

Setting the Module Card DIP Switch.........................................................................2-4

Ring Speed .....................................................................................................................2-6

Installing the Module into the SmartSwitch 9000 Chassis......................................2-6

The Reset Switch ...........................................................................................................2-8

Contents

Chapter 3 Operation

Bridging..........................................................................................................................3-1

Transparent Bridging (Provided Between all Three Interfaces)...................... 3-2

Source Route Bridging (Provided Only Between Front Panel Rings)............ 3-3

SR-TB Bridging (Front Panel Token Ring to FNB) ............................................3-3

Spanning Tree Algorithm...................................................................................... 3-4

Flexible Network Bus (FNB)........................................................................................ 3-4

System Management Buses .........................................................................................3-4

SMB-1 Bus ............................................................................................................... 3-4

SMB-10 Bus ............................................................................................................. 3-5

System Diagnostic Controller...................................................................................... 3-5

DC/DC Converter ........................................................................................................3-5

FNB Interface................................................................................................................. 3-5

i960 Core......................................................................................................................... 3-6

Chapter 4 LANVIEW LEDs

Chapter 5 Specifications

Safety............................................................................................................................... 5-1

Service............................................................................................................................. 5-1

Physical........................................................................................................................... 5-2

Dimensions: ............................................................................................................ 5-2

Weight:..................................................................................................................... 5-2

Electrical ......................................................................................................................... 5-2

v

Contents

Appendix A TPIM Specifications

TPIM-T1............................................................................................................................. 1

TPIM-T2 and TPIM-T4 .................................................................................................... 3

TPIM-F2 ............................................................................................................................. 4

TPIM-F3 ............................................................................................................................. 5

vi

Introduction

The 9T122-08 MicroLAN™ Switch Extension Module, shown in Figure 1-1, is a
three port Token Ring switch module. This module supports two separate Token
Rings with four lobe connections each, and an interface to the FNB backplane.
Each front panel Token Ring also supports Ring-in/Ring-out connections by
using plug-in Token Ring Port Interface modules (TPIMs).

Chapter 1

Features

Processor

The 9T122-08 is equipped with an advanced Intel i960 microprocessor. This
microprocessor provides a platform for all management functions within a
scalable RISC-based architecture.

System Management

Interfaces to the two System Management Buses (SMB-1 and SMB-10) for
intermodule management.

Connectivity

The 9T122-08 provides four RJ-45 Trunk Coupling Unit (TCU) lobe connectors for
each of the two front panel Token Rings. Each front panel Token Ring has sockets
for TPIMs, allowing for Ring-in/Ring-out connections

SRT Packet Switching

SRT Bridging between the front panel Token Ring connections and SR-TB
bridging to any other module in the chassis via FNB -1 or FNB -2 of the FNB bus.
The module is capable of Transparent Bridging and/or Source Route Bridging.
IEEE 802.1d Spanning Tree Protocol is supported in all bridging functions.
Translational bridging between Source Routing and Transparent Frames types is
also performed for packets destined for the FNB.

1-1

Introduction

NOTE

Management Information Base (MIB) Support

The 9T122-08 module provides MIB support including:

• IETF MIB II (RFC 1213)

• IETF Bridge MIBs (RFC 1493 and 1525)

• IEEE 802.5 Token Ring MIB (RFC 1231)

• Cabletron Enterprise MIBs

For a complete list of supported MIBs, refer to the release notes provided in the
module package.

Ring Security

Ring Security prevents unauthorized stations from attaching to the ring. Using
Local or Remote Management, the module may be configured as to which MAC
addresses are allowed to operate on the ring.

Telnet

A telnet session can be set up with the module to provide access to the Local
Management screens.

LANVIEW LEDs

The 9T122-08 uses LANVIEW – the Cabletron Systems built-in visual diagnostic
and status monitoring system. With LANVIEW LEDs, you can quickly identify
the device, port, and physical layer status at a glance.

Hot Swapping

The 9T122-08 can be installed or removed from the chassis while the SmartSwitch
9000 is powered up without affecting the operation of the remaining modules in
the chassis.

1-2

Introduction

TOKEN RING

9T122-08

SMB CPU

FNB

TR1

TR2

T
O
K
E
N

R

I
N
G
1

RING OUT

16 Mb

41

16 Mb

41

RING IN

RING OUT

T
O
K
E
N

R

I
N
G
2

RING IN

Figure 1-1. The 9T122-08 MicroLAN Switch Extension Module

1-3

Introduction

Related Manuals

The manuals listed below should be used to supplement the procedures and
technical data contained in this manual.

SmartSwitch 9000 Installation Guide
SmartSwitch 9000 Operations Guide
SmartSwitch 9000 9C300-1 Environmental Module User’s Guide
SmartSwitch 9000 9C214-1 AC Power Supply User’s Guide
SmartSwitch 9000 Local Management User’s Guide

Getting Help

If you need additional support related to this device, or if you have any questions,
comments, or suggestions concerning this manual, contact the Cabletron Systems
Global Call Center:

Phone [phone]
Internet mail [e-mail]
FTP ctron.com (134.141.197.25)

Login
Password

BBS [phone]

Modem setting 8N1: 8 data bits, No parity, 1 stop bit

For additional information about Cabletron Systems or our products,
visit our World Wide Web site:
For technical support, select

Before calling the Cabletron Systems Global Call Center, have the following
information ready:

• Your Cabletron Systems service contract number

• A description of the failure

• A description of any action(s) already taken to resolve the problem (e.g.,
changing mode switches, rebooting the unit, etc.)

• The serial and revision numbers of all involved Cabletron Systems products in
the network

• A description of your network environment (layout, cable type, etc.)

• Network load and frame size at the time of trouble (if known)

• The device history (i.e., have you returned the device before, is this a recurring
problem, etc.)

• Any previous Return Material Authorization (RMA) numbers

anonymous
your email address

http://www.cabletron.com/

Service and Support .

1-4

Chapter 2

Installing the SmartSwitch 9000 Module

This module uses TPIMs for the front panel RI/RO connections. They are not
shipped with the module and must be purchased separately. There are
configuration switches on some of the TPIMs. They are described in the
instruction card shipped with the TPIMs. For information on the various TPIMs
models, see Appendix A .

Unpacking the Module

1. Carefully remove the module from the shipping box. (Save the box and

packing materials in the event the module must be reshipped.)

2. Remove the module from the plastic bag. Observe all precautions to prevent

damage from Electrostatic Discharge (ESD).

3. Carefully examine the module, checking for damage. If any damage exists,

DO NOT install the module. Contact Cabletron Systems Technical Support
immediately.

Installing an TPIM

The 9T122-08 MicroLAN module is shipped without TPIMs. To install a TPIM,
follow the procedure below:

1. Loosen the mounting screw and remove the faceplate from the RI/RO port on

the 9T122-08 or

If replacing a TPIM, loosen the mounting screw and pull the TPIM straight out from
the 9T122-08.

2. Slide the new TPIM into place as shown in Figure 2-1.

2-1

Installing the SmartSwitch 9000 Module

3. Ensure proper mating between the connectors on the rear of the module and
on the inside of the 9T122-08.

4. Tighten the mounting screw.

1

Figure 2-1. Installing a TPIM

2-2

User Accessible Components

Figure 2-2 shows the various components that are accessible to the user. These
consist of an eight position dip switch (explained in the next section), replaceable
PROMs and sockets for RAM. These will be used for future upgrades.

Installing the SmartSwitch 9000 Module

SMB-1 PROM

i960 Processor

Flash SIMM
Socket

DIP Switch

Boot PROM

Shared Packet
Memory SIMM

Local Program Memory
SIMM Socket

Figure 2-2. User Accessible Components

2-3

Installing the SmartSwitch 9000 Module

Setting the Module Card DIP Switch

An eight-switch DIP switch is located on the module card as shown in Figure 2-2
and in Figure 2-3. The function of the switches are listed in Table 2-1.

1 2 3 4 5 6 7 8

Figure 2-3. Location of Module DIP Switch

2-4

Installing the SmartSwitch 9000 Module

See the Cautions at the end of this table.

Table 2-1. Function of DIP Switch

Switch Function Description

When toggled, this switch clears user-entered

8

7

Clear

Password

Clear

NVRAM

passwords stored in NVRAM, and restores the default

1

passwords. Once reset you can use the defaults or enter
new passwords.

The module uses NVRAM to store user entered
parameters such as IP addresses, device name, etc. To
reset these parameters to the factory defaults, toggle this
switch. Once reset you can use the defaults or enter new

2

parameters which are stored in NVRAM when the
module is powered down, and remain there until the
switch is toggled again.

!

CAUTION

Toggling this switch after pulling the board out of the

6

5 Reserved

4 Reserved

3 Reserved

2 Reserved

1 Reserved

Force BootP

Download

SmartSwitch 9000, clears download information from
NVRAM and forces image files to be downloaded from
the station configured to act as that modules’ BOOTP
server.

For Factory Use Only

For Factory Use Only

For Factory Use Only

For Factory Use Only

For Factory Use Only

Caution: Do not toggle Switch 8 unless you intend to reset the user configured
passwords to their factory default settings.

Caution: Do not toggle Switch 7 unless you intend to reset the user parameters
to the factory default settings.

2-5

Installing the SmartSwitch 9000 Module

Ring Speed

The module defaults to a 16Mbps ring speed on all rings. This may be changed
though local management.

Installing the Module into the SmartSwitch 9000
Chassis

The SmartSwitch 9000 MicroLAN Module may be installed into any of the 14 slots
that are available. To install a module, follow the steps below:

1. Switch off the power supplies and remove all power from the SmartSwitch
9000 chassis.

2. Remove the blank panels, covering the slots that the module is being mounted
in. All other slots must be covered, if modules are not being installed, to
ensure proper airflow and cooling.

3. Attach one end of the ESD wrist strap packaged with the SmartSwitch 9000
chassis to your wrist. Plug the other end into the ESD Wrist Strap Grounding
receptacle in the lower right corner of the SmartSwitch 9000 chassis shown in
Figure 2-4.

4. The module is installed into the chassis by sliding it into slots and locking
down both the top and bottom plastic tabs, as shown in Figure 2-4. Take care
that the module slides in straight and engages the backplane connectors
properly. When installing the module, ensure that both circuit cards are
between the card guides, as shown in Figure 2-4. Check both the upper and
lower tracks of both cards.

2-6

Installing the SmartSwitch 9000 Module

Plastic Tab

Metal Back-Panel

Jack for ESD
Wrist Strap

Module

Module Guides

Warning:
Ensure that the circuit card is between the

card guides.
Lock down the top and bottom plastic tabs

at the same time, applying even pressure.

Figure 2-4. Installing the MicroLAN Module

2-7

Installing the SmartSwitch 9000 Module

SMB

CPU

The Reset Switch

The Reset switch is located on the front panel, under the top plastic tab, as shown
in Figure 2-5. It serves two functions:

• Pressing the reset switch twice within three seconds causes the processor (i960)
to reset.

• Pressing and holding the switch on for three or more seconds causes the
module to shutdown. Pressing and holding again for three seconds restarts the
module.

SNMP management may be used to disable this switch to enhance module
security.

Reset Switch

Figure 2-5. The Reset Switch

2-8

Operation

The 9T122-08 MicroLAN Module provides connectivity between the front panel
Token Ring(s) and the FDDI rings on the backplane (FNB-1 or FNB-2).

Chapter 3

SmartSwitch 9000 modules connect to either the Internal Network Bus (INB) or
the Flexible Network Bus (FNB) bus. The 9T122-08 module connects to the FNB
bus. Figure 3-1 is a block diagram of the module. The two front panel rings
function as individual networks, each with four ports. Bridging may occur
between these two rings and/or to any other SmartSwitch 9000 module via the
Flexible Network Bus.

Four

Front Panel

Connections

and RI/RO

Four

Front Panel

Connections

and RI/RO

DC/DC

Converter

Figure 3-1. 9T122-08 Block Diagram

System

Diagnostic

Controller

i960 PLUS Core

SMB-1

SMB-10

FNB-1 or

FNB-2

Bridging

The 9T122-08 is configured for SR-TB bridging. It will pass SR (Source Routing)
frames between the rings and provides translation to transparent frames over the
FNB to Ethernet and FDDI modules. For information on configuring the bridging
function, see the addendum to the SmartSwitch 9000 Local Management User’s
Guide, containing information specific to this model.

3-1

Operation

Source Route
and
Transparent
Packets

TR1

SR-TB
Bridge

TR2

Figure 3-2. 9T122-08 Bridging Diagram

FNB - Transparent
Packets only

Transparent Bridging

Transparent Bridging is accomplished by building a Source Address Table (SAT)
from source MAC/physical addresses and using the SAT to make forwarding
decisions.

The 9T122-08 prevents unnecessary network traffic from passing through the
module by implementing two separate filtering processes — IEEE 802.1d or
Cabletron’s Special Filtering Database. These processes may be used individually
or in tandem.

The first process, the IEEE 802.1D filtering process, begins with the creation of a
list of local node addresses in a table (the SAT). When the 9T122-08 first goes on­line, it initially forwards all packets across the bridge. After receiving a packet on
the bridge port, the 9T122-08 learns the address of the sending node from the
packet and stores that address in the SAT. In this manner, the bridge learns the
address of each node on each side of the bridge. The bridge then uses the
addresses stored in the table to compare the destination address of each
subsequent packet that travels to the bridge. If the destination address of a packet
resides on the bridge segment, the 9T122-08 does not forward across the Token
Ring link.

The second filtering process, the Cabletron Systems Special Filtering Database,
provides an additional step in the filter/forward decision. Through Remote
Management, you can define up to 10 additional filtering parameters for
incoming network traffic. These parameters include (but are not limited to) the:

(Provided Between all Three Interfaces)

3-2

• Destination address

• Source address

• Type field (protocol)

• 64 bytes of the data field (using a data offset)

For example, using this process, you can ensure that the 9T122-08 always filters or
forwards packets with a specific protocol or address.

Operation

Source Route Bridging

Source Route Bridging operates by transmitting frames over a designated route.
Unlike Transparent Bridging, all devices in a Source Route Bridged (SRB) network
“know” the locations of other stations within the network. Using a portion of the
MAC frame header known as the RIF (Routing Information Field), the source
device determines the route for the frames it sends.

In order for source routing to work, the source station must determine the proper
route to reach the desired destination. To accomplish this:

1. The source station sends out frames called All Route Explorer (ARE) or Single

Route Explorer (SRE) frames onto the network. All Source Route Bridges
recognize these frames and forward them to their outbound ports.

2. The receiving bridges append their own route information to the Route

Information Field (RIF) in the MAC frame header and transmit the frame
again.

3. Eventually, the original source device receives all of the ARE replies from the

other end stations on the network.

4. From this information, the source device can determine a desired route for

each frame it transmits.

(Provided Only Between Front Panel Rings)

SR-TB Bridging

Source Routing (SR) packets from the front panel Token Ring must be converted
to Transparent Bridging (TB) type packets before it is sent over the FNB. The RIF
is stripped off the packet and placed in a RIF cache.

The SR-TB bridge is a learning type bridge. It learns what nodes are present by
listening to incoming packets and saving their MAC addresses to a database
table. If the packet is source routed, it also updates the RIF cache.

If the destination is unknown or is a broadcast address, the bridge sends either a
STE or a ARE packet for the Token Ring interface, or a TP packet for the FDDI
interface, to carry the data to the end station. This is user configurable.

(Front Panel Token Ring to FNB)

3-3

Operation

Spanning T ree Algorithm

The 9T122-08 promotes maximum network use in multiple bridge environments.
A bridge learns the bridge topology of its network from bridge protocol data that
it receives from other bridges within the network. The bridges then apply the
Spanning Tree Algorithm (STA) to select a root bridge, and then determine
primary data paths within potential data loop configurations.

Spanning Tree Algorithm is a hierarchy (or tree) of priorities that bridges establish
between themselves. This hierarchy guarantees that primary and redundant data
paths are clearly defined at all times, so that the network is continuously available
to users.

In a multiple bridge environment, one bridge in the network establishes itself as
the root bridge. As the root, this bridge has priority over all other bridges. In a
Spanning Tree, all of the bridges must determine which bridge is the root, and
then determine their own relative priority within the network.

Flexible Network Bus (FNB)

The FNB consists of two dual FDDI networks, the FNB-1 and FNB-2, providing
up to 400 Mbps of data bandwidth. These FDDI networks are 100% ANSI
FDDI-compliant supporting SMT (version 7.3), MAC, PHY, and PMD standards.
This allows the FNB to traverse multiple SmartSwitch 9000 hubs, or connect to
any ANSI FDDI-compliant device, through standard A/B port connections, using
the FDDI repeater module.

System Management Buses

There are two management channels within the SmartSwitch 9000 system: the
SMB-1 and the SMB-10. These buses provide out-of-band management and inter­module management communication.

SMB-1 Bus

The SMB-1 is a 1Mbs management bus located within the SmartSwitch 9000. This
bus is utilized by all diagnostic controllers in the system including connectivity
modules, power supply modules and the environmental module. The SMB-1
transports inter-chassis information between system components, such as power
and environmental information, as well as diagnostic messages. Periodic
loop-back test are preformed by all modules which share this bus to ensure the
validity of SMB-1. In the event a failure is detected on SMB-1, the SMB-10 may be
used as an alternate communication channel.

3-4

SMB-10 Bus

The SMB-10 is a 10Mbs management bus located within the SmartSwitch 9000
which is also used for inter-chassis communication of modules as well as serving
as an out-of-band management channel into the SmartSwitch 9000. The SMB-10 is
externalized from the chassis via an optional Ethernet Port Interface Module
(EPIM) located on the front of the Environmental Module. Through an EPIM
connection, full SNMP management of the SmartSwitch 9000 is available out-of­band from user data. Modules which share the SMB-10 bus periodically send out
loop-back packets to ensure the validity of SMB-10. In the event a fault is detected
on the SMB-10, the SMB-1 can be used as an alternate communication channel by
the modules.

System Diagnostic Controller

This diagnostic controller is composed of a Z-80 microprocessor and its
supporting logic. The diagnostic controller is designed to control the power-up
sequencing of modules, monitor the 9T122-08 input and output power
parameters, keep watch over the main host processor, as well as monitor the
temperature and control the SMB LANVIEW diagnostic LED. Although the
diagnostic controller and the main host processor can operate independent of
each other if needed, they exchange information about each others status and
overall module condition. The information gathered by the diagnostic controller
is available to the network manager via local/remote management and the LCD
located on the environment module. The 9T122-08 have been designed so that in
the event of a diagnostic controller fault, the modules will continue to function.

Operation

DC/DC Converter

The DC/DC converter converts the 48 VDC on the system power bus to the
necessary operating voltages for its host network services module. The diagnostic
controller controls the operation of the DC/DC converter.

FNB Interface

SmartSwitch 9000 modules are designed with one of two attachment policies. One
allows a module to dual attach to either FNB-1 or FNB-2; the second allows dual
attachment to both FNB-1 and FNB-2. The 9T122-08 has one dual attachment to
the FNB backplane, connecting to either FNB-1 or FNB-2. The module can insert
into the FNB or bypass it. These flexible configuration options make the
SmartSwitch 9000 ideal for networks designed to Bridge/Route multiple lower
speed LANs to FDDI and/or networks designed using an FDDI collapsed
backbone.

3-5

Operation

i960 Core

The i960 core in the FNB module serves two major functions: it provides the
packet forwarding logic and performs all network management services. FNB
modules can be configured to run as layer 2 bridges, layer 3 routers or as
SecureFast Packet Switches. It is possible to run the bridging and routing options
concurrently, but the SFPS option cannot run with bridging and routing.

The i960 core provides the SNMP protocol stacks, as well as support for industry
standard MIBs. Additionally, Cabletron enterprise extension MIBs are supported
for each media type. Advanced management services, such as the Distributed
LAN Monitor, RMON, telnet and network address to MAC address mapping, are
also provided by the i960 core.

3-6

LANVIEW LEDs

The front panel LANVIEW LEDs, shown in Figure 4-1, indicate the status of the
module and may be used as an aid in troubleshooting. Just the status LEDs for
Token Ring 1 are shown. Token Ring 2 LEDs have the same functionality.

TOKEN RING

Chapter 4

FNB Receive

Token Ring MAC
Receive

TPIM LED is
explained in
Appendix A

9T122-08

SMB CPU

FNB

TR1

TR2

RING OUT

16 Mb

41

16 Mb

41

System Status

FNB Transmit

Token Ring Speed

(16mb)

Token Ring MAC Transmit

Link (for Four
Token Ring Lobe
Connections)

Figure 4-1. LANVIEW LEDs

4-1

LANVIEW LEDs

The functions of the two System Status LEDs, System Management Bus (SMB)
and the CPU, are listed in Table 4-1.

The functions of the FNB receive LED are listed in Table 4-2.

Table 4-1. System Status LEDs (SMB and CPU)

LED Color State Description

Green Functional Fully operational.

Yellow Crippled Not fully operational (i.e., one bad port).

Yellow/Green Booting Blinks yellow and green while booting.

Red Reset Normal power-up reset.

Red (Flashing) Failed Fatal error has occurred.

Off Power off Module powered off.

Table 4-2. FNB Receive LEDs

LED Color State

Red No link, Port disabled

Red (Flashing) Link, Port disabled

Green Link, No activity, Port enabled

Yellow (Flashing) Activity (Flashing rate indicates rate of activity).

Off No activity

The functions of the FNB transmit LED are listed in Table 4-3.

Table 4-3. FNB Transmit LEDs

LED Color State

Red

Red (Flashing) Fault or Error (Flashing rate indicates rate)

Yellow (Flashing) Port in standby state

Port disabled

4-2

Green (Flashing) Activity (Flashing rate indicates rate of activity).

Off No activity

LANVIEW LEDs

The functions of the Token Ring Mac receive LEDs are listed in Table 4-4.

Table 4-4. Token Ring Receive LED

LED Color State

Red No link, Port disabled

Red (Flashing) Link, Port disabled

Green Link, No activity, Port enabled

Yellow (Flashing) Link, Activity (Flashing rate indicates rate of activity).

Off No link, No activity, Port enabled

The functions of the Token Ring Mac transmit LEDs are listed in Table 4-5.

Table 4-5. Token Ring Transmit LED

LED Color State

Red Port Disabled

Red (Flashing) Fault, Ring is Beaconing

Green (Flashing) Activity (Flashing rate indicates rate of activity).

Yellow (Flashing) Port in standby state, Link

Off No activity, Port enabled

The functions of the Token Ring speed LEDs are listed in Table 4-6.

Table 4-6. Token Ring Speed

LED Color State

Yellow 16 Mbs

Off 4 Mps

4-3

LANVIEW LEDs

The functions of the Link LED are listed in Table 4-7.

Table 4-7. Port Link LEDs

LED Color State

Red No link, Port disabled

Red (Flashing) Link, Port disabled or Speed fault

Green Link, Port enabled

Off No link, Port enabled

4-4

Specifications

Safety

It is the responsibility of the person who sells the system to which the module will

!

CAUTION

be a part to ensure that the total system meets allowed limits of conducted and
radiated emissions.

This equipment meets the safety requirements of:

• UL 1950

• CSA C22.2 No. 950

• EN 60950

• IEC 950

• EMI Requirements of FCC Part 15 Class A

• EN 55022 Class A

• VCCI Class I

• EMC requirements of:

Chapter 5

Service

MTBF (MHBK-217E) >200,000 hrs.

MTTR <0.5 hr.

EN 50082-1
IEC 801-2 ESD
IEC 801-3 Radiated susceptibility
IEC 801-4 EFT

5-1

Specifications

Physical

Dimensions:

Weight:

Unit: 1.36 kg. (3lb)
Shipping: 1.81 kg. (4lb)

Electrical

CPU: i960

35.0 D x 44.0 H x 3.0 W centimeters
(13.8 D x 17.4 H x 1.2 W inches)

Shared DRAM Memory: 4Mb (expandable to 12 Mb)

Local DRAM Memory: 12Mb

Flash: 2Mb (expandable to 14 Mb)

Token Ring Interfaces: (2) Texas Instruments TMS380C26 Controllers

NVRAM: 128 Kb

5-2

TPIM Specifications

This SmartSwitch 9000 module uses Token Ring Port Interface Modules (TPIM) to
provide front panel Ring In/Ring Out (RI/RO) connections. The TPIMs are
user-installable. See section titled

TPIMs provide RI/RO connections that let you extend your network using a
variety of media. Each TPIM has an embedded repeater that retimes all data.

The LNK (Link) LED on each TPIM provides the following information:

• Green - RI or RO active

• Red (TPIM-T1/T2/T4 only) - No Link (Autowrapped)

• Off - No Link (Wrapped or Disabled)

TPIM-T1

Installing an TPIM on page 2-1.

Appendix A

The TPIM-T1 has a female DB9 connector that supports STP cabling. Figure A-1
and Table A-1 show the pinouts for RI/RO applications.

5 4 3 2 1

LNK

9 8 7 6

TPIM-T1

Figure A-1. TPIM-T1

A-1

TPIM Specifications

Pin Number Represents Pin Number Represents

Table A-1. TPIM-T1 Pinouts

Ring In Ring Out

1 Transmit+ 1 Receive+

2 Ground 2 Ground

3 +5V at 250 mA 3 +5V at 250 mA

4 Ground 4 Ground

5 Receive- 5 Transmit-

6 Transmit- 6 Receive-

7 Ground 7 Ground

8 Ground 8 Ground

9 Receive+ 9 Transmit+

A-2

TPIM-T2 and TPIM-T4

The TPIM-T2 has an RJ-45 connector supporting an Unshielded Twisted Pair
(UTP) connection. The TPIM-T4 has an RJ-45 connector supporting a Shielded
Twisted Pair (STP) connection. The pinouts for both are listed in Table A-2.

TPIM-T2 and TPIM-T4

1 2 3 4 5 6 7 8

LNK

TPIM-T2

Figure A-2. TPIM-T2 and TPIM-T4

Table A-2. TPIM-T2 and TPIM-T4 Pinouts

Ring Out Ring In

Pin Number Represents Pin Number Represents

1 Not Used 1 Not Used

2 Not Used 2 Not Used

3 Receive- 3 Transmit-

4 Transmit+ 4 Receive+

5 Transmit- 5 Receive-

6 Receive+ 6 Transmit+

7 Not Used 7 Not Used

8 Not Used 8 Not Used

A-3

TPIM Specifications

TPIM-F2

The TPIM-F2, as shown in Figure A-3, provides a multimode fiber connection
using an ST type connector. The specifications are listed in Table A-3.

RX

TX

LNK

TPIM-F2

Figure A-3. TPIM-F2 and TPIM-F3

Table A-3. TPIM-F2 Specifications

Parameter Typical Value

Receive Sensibility -30.5 dBm -28.0 dBm - -

Peak Input Power -7.6 dBm -8.2 dBm - -

Worst

Case

Transmitter power parameters are listed in Table A-4.

Worst Case

Budget

Typical
Budget

A-4

Table A-4. Transmitter Power Parameters

Parameter Typical Value

50/125 µm fiber -13.0 dBm -15.0 dBm 13.0 dB 17.5 dB

62.5/125 µm fiber -10.0 dBm -12.0 dBm 16.0 dB 20.5 dB
100/140 µm fiber -7.0 dBm -9.0 dBm 19.0 dB 23.5 dB

Error Rate Better than 10

-10

Worst

Case

Worst Case

Budget

Typical
Budget

The link distance is up to 2 kilometers on the multimode fiber-optic cable as
specified by ANSI MMF-PMD.

TPIM-F3

The TPIM-F3, as shown in Figure A-3, provides a Single-mode fiber connection
using an ST type connector. The specifications are listed in Table A-5.

Transmitter Peak Wave Length 1300 nm 1270 nm 1330 nm

Spectral Width 60 nm - 100 nm

Rise Time 3.0 nsec 2.7 nsec 5.0 nsec

Fall Time 2.5 nsec 2.2 nsec 5.0 nsec

Duty Cycle 50.1% 49.6% 50.7%
Bit Error Rate Better than 10

TPIM-F3

Table A-5. FPIM-05 and FPIM-07 Specifications

Parameter Typical Minimum Maximum

-10

The link distance is up to 40 kilometers (max) and 25 kilometers (typical) on
single mode fiber-optic cable as specified by ANSI SMF-PMD.

A-5

TPIM Specifications

A-6