Cabletron Systems MMAC-Plus 9A128-01 User manual

MMAC-Plus
™
9A128-01 & 9A129-01
ATM Access Module
User’s Guide

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 May 1995 by:
Cabletron Systems, Inc.
35 Industrial Way
Rochester, NH 03867-0505
All Rights Reserved
Printed in the United States of America
Order Number: 9031304-01 May 95
LANVIEW is a registered trademark of Cabletron Systems, Inc.
MMAC-Plus is a trademark of Cabletron Systems, Inc.
CompuServe is a registered trademark of CompuServe, 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.

iii
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.

Safety Notice
iv
Safety Information
CLASS 1 LASERTRANSCEIVERS
The 9A129-01 is a Class 1 Laser Product
The 9A129-01 uses Class 1 Laser transceivers. Read the following safety
information before installing or operating these adapters.
The Class 1 laser transceivers use an optical feedback loop to maintain Class 1 operation
limits. This control loop eliminates the need for maintenance checks or adjustments. The
output is factory set, and does not allow any user adjustment. Class 1 Laser transceivers
comply with the following safety standards:
• 21 CFR 1040.10 and 1040.11 U.S. Department of Health and
Human Services (FDA).
• IEC Publication 825 (International Electrotechnical Commission).
• CENELEC EN 60825 (European Committee for Electrotechnical
Standardization).
When operating within their performance limitations, laser transceiver output meets the
Class 1 accessible emission limit of all three standards. Class 1 levels of laser radiation are not
considered hazardous.
CLASS 1
LASER PRODUCT

v
Safety Notice
Safety Information
CLASS 1 LASERTRANSCEIVERS
Laser Radiation and Connectors
When the connector is in place, all laser radiation remains within the fiber. The maximum
amount of radiant power exiting the fiber (under normal conditions) is -12.6 dBm or 55 x 10
-6
watts.
Removing the optical connector from the transceiver allows laser radiation to emit directly
from the optical port. The maximum radiance from the optical port (under worst case
conditions) is 0.8 W cm
-2
or 8 x 10
3
W m
2
sr-1.
Do not use optical instruments to view the laser output. The use of optical instruments to
view laser output increases eye hazard. When viewing the output optical port, power must
be removed from the network adapter.

v
Contents
Chapter 1 Introduction
Features........................................................................................................................... 1-1
Related Manuals............................................................................................................ 1-4
Getting Help .................................................................................................................. 1-4
Chapter 2 Installing the MMAC-Plus Modules
The Reset Switch ........................................................................................................... 2-3
User-Accessible Components...................................................................................... 2-4
Setting the Module Card DIP Switch ......................................................................... 2-5
Chapter 3 Operation
ATM ................................................................................................................................ 3-1
Flexible Network Bus (FNB)........................................................................................ 3-2
System Management Buses ......................................................................................... 3-2
SMB-1 Bus ............................................................................................................... 3-2
SMB-10 Bus ............................................................................................................. 3-2
System Diagnostic Controller...................................................................................... 3-2
DC/DC Converter ........................................................................................................ 3-3
FNB Interface................................................................................................................. 3-3
i960 Core......................................................................................................................... 3-3
Chapter 4 LANVIEW LEDs
Chapter 5 General Specifications
Safety............................................................................................................................... 5-1
Service............................................................................................................................. 5-1
Physical........................................................................................................................... 5-2
Dimensions ............................................................................................................. 5-2
Weight...................................................................................................................... 5-2
Temperature............................................................................................................ 5-2
Relative Humidity ................................................................................................. 5-2

1-1
Chapter 1
Introduction
The 9A128-01 and 9A129-01 ATM Access Modules (shown in Figure 1-1) provide
an ATM Uplink that allows connecting an external ATM network to the
MMAC-Plus.
The 9A128-01 and 9A129-01 are used to connect an external ATM network or
workstation to one of the two FNB networks, FNB-1 or FNB-2, on the
MMAC-Plus FNB backplane. External connections are made via a front panel, 155
Mbps SONET ATM interface.
The 9A128-01 and 9A129-01 are fully compatible with all ATM Forum
specifications, including UNI 3.0, ILMI and LAN Emulation. The 9A128-01 and
9A129-01 act as a ATM Forum LAN Emulation Client, allowing Ethernet, Token
Ring and FDDI users to access an ATM backbone.
Features
Processor
The 9A128-01 and 9A129-01 are equipped with an advanced Intel i960
microprocessor. This microprocessor provides a platform for all management
functions within a scalable RISC-based architecture.
System Management
The 9A128-01 and 9A129-01 interface to the two System Management Buses
(SMB-1 and SMB-10) for intermodule management. Management features include
the following:
• Module Insert/Bypass Control
• MAC Placement
• Station Management (SMT) Statistics
• Bridging Statistics (for all interfaces) including
- Frames Filtered
- Frames Forwarded
- All STA Parameters

Introduction
1-2
Hardware Bridging Logic
Hardware frame filter/forward logic increases the bridging performance of the
9A128-01 and 9A129-01, allowing the modules to achieve higher throughputs (up
to 20,000 packets per second).
SpanningTree Algorithm
The 9A128-01 and 9A129-01 support both IEEE 802.1d and DEC Spanning Tree
Algorithm (STA) protocols.
Connectivity
For ATM, the 9A128-01 uses a 155 Mbps SONET OC3 Multimode Fiber front
panel interface and the 9A129-01 uses a single mode fiber interface. These have a
SC type connector. In addition, the 9A128-01 and 9A129-01 have two physical
FDDI interfaces (FNB-1, and FNB-2) and allows bridging one of these to the front
panel interface.
LANVIEW LEDs
The 9A128-01 and 9A129-01 use 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 9A128-01 and 9A129-01 can be installed or removed from the chassis while
the MMAC-Plus is powered up without affecting the operation of the rest of the
network.

1-3
Features
Figure 1-1. The 9A128-01 and 9A129-01 Modules
9A128-01
ATM
FNB
SMB CPU
ATM
1
A
T
M
1
9A129-01
ATM
FNB
SMB CPU
ATM
1
A
T
M
1
MMAC PLUS MMAC PLUS