Cabletron Systems Switch BRIM T6 User Manual

BRIM-T6  
USER’S GUIDE  
 
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 1995 by: Cabletron Systems, Inc.  
P.O. Box 5005, Rochester, NH 03866-5005  
All Rights Reserved  
Printed in the United States of America  
Order Number: 9031288 September 1995  
LANVIEW, Remote LANVIEW, SPECTRUM, BRIM, TPIM-T1, TPIM-T2,  
TPIM-T4, TPIM-F2, TPIM-F3, and MicroMMAC are trademarks of Cabletron  
Systems, Inc.  
CompuServe is a registered trademark of CompuServe, Inc.  
Intel is a registered trademark of the Intel Corporation.  
Printed on  
recycled paper.  
i
 
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.  
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.  
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.  
ii  
 
NOTICE  
PROGRAM LICENSE AGREEMENT  
IMPORTANT: Before utilizing this product, carefully read this License Agreement.  
This document is an agreement between you, the end user, and Cabletron Systems, Inc.  
(“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron  
software program (the “Program”) contained in this package. The Program may be  
contained in firmware, chips or other media. BY UTILIZING THE ENCLOSED  
PRODUCT, YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS  
AGREEMENT, WHICH INCLUDES THE LICENSE AND THE LIMITATION OF  
WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT AGREE TO THE  
TERMS OF THISAGREEMENT, PROMPTLY RETURN THE UNUSED PRODUCT TO  
THE PLACE OF PURCHASE FOR A FULL REFUND.  
CABLETRON SOFTWARE PROGRAM LICENSE  
1. LICENSE.You have the right to use only the one (1) copy of the Program provided in  
this package subject to the terms and conditions of this License Agreement.  
You may not copy, reproduce or transmit any part of the Program except as permitted  
by the Copyright Act of the United States or as authorized in writing by Cabletron.  
2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble  
the Program.  
3. APPLICABLE LAW. This License Agreement shall be interpreted and governed  
under the laws and in the state and federal courts of New Hampshire. You accept the  
personal jurisdiction and venue of the New Hampshire courts.  
iii  
 
NOTICE  
EXCLUSION OF WARRANTY & DISCLAIMER OF  
LIABILITY  
1. EXCLUSION OFWARRANTY. Except as may be specifically provided by Cabletron  
in writing, Cabletron makes no warranty, expressed or implied, concerning the  
Program (including Its documentation and media).  
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE  
SUPPLIED TO YOU BY CABLETRON IN WRITING, EITHER EXPRESS OR  
IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF  
MERCHANTABLITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH  
RESPECT TO THE PROGRAM, THE ACCOMPANYING WRITTEN  
MATERIALS, AND ANY ACCOMPANYING HARDWARE.  
2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL  
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES  
WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS  
OF BUSINESS, PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS  
INFORMATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR RELIANCE  
DAMAGES, OR OTHER LOSS) ARISING OUT OF THE USE OR INABILITY TO  
USE THIS CABLETRON PRODUCT, EVEN IF CABLETRON HAS BEEN  
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME  
STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY  
FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR ON THE  
DURATION OR LIMITATION OF IMPLIED WARRANTEES IN SOME  
INSTANCESTHEABOVE LIMITATIONSAND EXCLUSIONS MAY NOTAPPLY  
TO YOU.  
UNITED STATES GOVERNMENT RESTRICTED  
RIGHTS  
The enclosed product (a) was developed solely at private expense; (b) contains “restricted  
computer software” submitted with restricted rights in accordance with Section 52227-19  
(a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its  
successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its  
suppliers.  
For Department of Defense units, the product is licensed with “Restricted Rights” as  
defined in the DoD Supplement to the Federal Acquisition Regulations, Section  
52.227-7013 (c) (1) (ii) and its successors, and use, duplication, disclosure by the  
Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights  
in Technical Data and Computer Software clause at 252.227-7013. Cabletron Systems,  
Inc., 35 Industrial Way, Rochester, New Hampshire 03867  
iv  
 
CONTENTS  
CHAPTER 1  
INTRODUCTION  
1.1 USING THIS MANUAL. . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1  
1.2 INTRODUCING THE BRIM-T6 . . . . . . . . . . . . . . . . . . . . .1-2  
1.3 BRIM SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . .1-4  
1.4 RELATED DOCUMENTATION. . . . . . . . . . . . . . . . . . . . . .1-4  
1.5 GETTING HELP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5  
CHAPTER 2  
INSTALLATION  
2.1 UNPACKING THE BRIM-T6. . . . . . . . . . . . . . . . . . . . . . . .2-1  
2.2 INSTALLING THE BRIM-T6. . . . . . . . . . . . . . . . . . . . . . . .2-1  
2.2.1 Installing the BRIM-T6 into a MIM . . . . . . . . . . . . .2-2  
2.2.2 Installing the BRIM-T6 into a Standalone Device. .2-4  
2.3 CONFIGURING THE BRIM-T6 RING SPEED. . . . . . . . . .2-4  
2.4 CONFIGURING AND INSTALLING TPIMs . . . . . . . . . . . .2-6  
2.4.1 Configuring TPIMs . . . . . . . . . . . . . . . . . . . . . . . . .2-6  
2.4.2 Installing TPIMs . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8  
CHAPTER 3  
CONNECTING TO THE NETWORK  
3.1 CONNECTING STP SEGMENTS . . . . . . . . . . . . . . . . . . .3-1  
3.2 CONNECTING UTP SEGMENTS . . . . . . . . . . . . . . . . . . .3-2  
3.3 CONNECTING FIBER OPTIC SEGMENTS . . . . . . . . . . .3-2  
CHAPTER 4  
MONITORING AND TROUBLESHOOTING  
4.1 LANVIEW LEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1  
4.1.1 Describing BRIM-T6 LEDs. . . . . . . . . . . . . . . . . . .4-1  
4.2 CHECKING THE CONNECTION. . . . . . . . . . . . . . . . . . . .4-3  
APPENDIX A TPIM SPECIFICATIONS  
A.1 TWISTED PAIR TPIM PINOUTS: STATION MODE. . . . . .A-1  
A.2 FIBER OPTIC TPIM SPECIFICATIONS . . . . . . . . . . . . . .A-1  
v
 
CONTENTS  
APPENDIX B MEDIA SPECIFICATIONS AND  
REQUIREMENTS  
B.1 FIBER OPTIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1  
B.2 SHIELDED TWISTED PAIR (STP) . . . . . . . . . . . . . . . . . .B-2  
B.3 UNSHIELDED TWISTED PAIR (UTP). . . . . . . . . . . . . . . .B-3  
vi  
 
CHAPTER 1  
INTRODUCTION  
Welcome to the BRIM-T6 USER’S GUIDE. This manual describes  
BRIM-T6 features, installation instructions, and operating procedures. It is  
intended for all users of the BRIM-T6.  
1.1 USING THIS MANUAL  
If you are unfamiliar with Cabletron Systemsnetworking products, please  
read this manual completely to gain an understanding of the features and  
capabilities of the BRIM-T6. Also, you should have a general knowledge  
of Token Ring (IEEE 802.5) data communications networks and their  
physical layer components before operating the BRIM-T6.  
This manual is organized as follows:  
Chapter 1, Introduction, outlines the contents of this manual and  
discusses BRIM-T6 features, capabilities, and specifications. It also  
describes how to get technical help and lists related documentation.  
Chapter 2, Installation, describes how to configure and install the  
BRIM-T6 and Token Ring Port Interface Modules (TPIMs).  
Chapter 3, Connecting to the Network, describes how to establish the  
physical link to a Local Area Network (LAN) by connecting standard  
network cable segments to the BRIM-T6.  
Chapter 4, Monitoring and Troubleshooting, describes how to use the  
LANVIEW LEDs diagnostic system to monitor the BRIM-T6’s  
operational status. It also describes procedures for resolving problems  
encountered establishing a link to a network via the BRIM-T6 interface.  
Appendix A, TPIM Specifications, describes specifications for Cabletron  
Systems’ series of attachable TPIMs.  
Appendix B, Media Specifications, describes specifications for network  
media.  
1-1  
 
INTRODUCTION  
1.2 INTRODUCING THE BRIM-T6  
The BRIM-T6 (see Figure 1-1) is a SNMP-manageable daughterboard that  
provides a bridging and routing interface for a variety of Cabletron  
Systems’ Intel i960-based intelligent Token Ring and Ethernet host  
devices (for example, the MicroMMAC-T concentrator and the EMM-E6  
management module).  
BRIM T6  
16Mb XMT  
STB RCV  
Figure 1-1. BRIM-T6  
NOTE: Contact your Cabletron Representative for up-to-date information  
Media Flexibility  
Used in conjunction with Cabletron Systems’ series of hot swappable  
TPIMs, the BRIM-T6 can be configured for connection to all standard  
network media. See Section 2.4 for instructions on how to configure and  
install TPIMs. Table 1-1 lists TPIMs and their corresponding media and  
connector types.  
Table 1-1. TPIMs and Corresponding Media  
TPIM  
Corresponding Media  
Shielded Twisted Pair  
Unshielded Twisted Pair  
Shielded Twisted Pair  
Multimode Fiber Optic  
Single-mode Fiber Optic  
Connector  
DB9  
TPIM-T1  
TPIM-T2  
TPIM-T4  
TPIM-F2  
TPIM-F3  
RJ45  
RJ45  
ST  
ST  
1-2  
 
   
INTRODUCTION  
Jumper Selectable Ring Speed  
The BRIM-T6 has a ring speed selection jumper on its component board  
that you can use to select operating ring speeds of either 4 or 16 megabits  
per second (4 or 16 Mbps). See Section 2.3 for instructions on setting the  
ring speed for the BRIM-T6.  
Bridge/Routing Protocols  
The BRIM-T6 provides Source Routing Transparent (SRT) bridging  
between any of the channels or ports in its host MIM or hub and the Token  
Ring. BRIM-T6 routing is determined by the routing protocols supported  
by the firmware of the host device.  
Spanning Tree Algorithm (STA) Compliance  
The BRIM-T6 operates in compliance with the functional specifications of  
the 802.1d STA, which is included in the firmware of the host device in  
which the BRIM-T6 is installed. The STA is used to manage primary and  
backup bridges and to maintain the reliability of the multi-bridged  
internetwork by detecting and preventing potential data loops.  
BRIM-T6 Management  
The host device in which the BRIM-T6 is installed provides Local  
Management (LM) applications for administering BRIM-T6  
bridge/routing functions. The operation of the BRIM-T6 can also be  
managed by remote SNMP applications such as Remote LANVIEW and  
SPECTRUM. See the documentation included with the host device or  
remote management application for information on how to administer  
bridge/routing functions.  
LANVIEW LEDs  
The LANVIEW LEDs on the front panel of the BRIM-T6, together with  
the LED on an installed TPIM, provide an at-a-glance means of monitoring  
the operational status of the BRIM-T6. LEDs indicate, for example,  
network connection status, data transmission activity, and ring speed  
operation. See Chapter 4 for more information about LEDs.  
1-3  
 
INTRODUCTION  
1.3 BRIM SPECIFICATIONS  
Environment  
Storage temperature:  
Operating temperature:  
Operating humidity:  
- 30° to 90° C  
5° to 40°C  
5% to 95% non-condensing  
Safety  
This unit meets the safety requirements of UL 1950 (without D3  
deviations), CSA C22.2 No. 950, and EN60950.  
EMI  
This unit meets the EMI requirements of FCC Part 15 Class A, EN55022  
Class A and VCCI Class I.  
EMC  
This unit meets the EMC requirements of EN 50082-1 including: IEC  
801-2 (ESD) levels 1 through 4, IEC 801-3 (Radiated Susceptibility)  
levels 1 through 4, and IEC 801-4 (EFT/B) levels 1 through 4.  
NOTE: It is the network system vendors responsibility to ensure that the  
total network system, including the BRIM-T6, meets allowed limits of  
conducted and radiated emissions.  
1.4 RELATED DOCUMENTATION  
The following documents provide supplementary information related to  
the procedures and technical data in this manual.  
Cabletron Documentation  
Cabletron Systems’ EMM-E6 Users Guide  
Cabletron Systems’ MicroMMAC-E/MicroMMAC-T Users Guides  
Cabletron Systems’ ESXMIM Users Guide  
Cabletron Systems’ Router Services Manuals  
Cabletron Systems’ Guide to Local Area Networking  
1-4  
 
INTRODUCTION  
Networking Publications  
The Simple Book, An Introduction to Management of TCP/IP-based  
Internets, Marshall T. Rose, Prentice-Hall, Inc., 1991  
Local Area Networks, Token Ring Access Method, IEEE Standard 802.5  
(1989)  
1.5 GETTING HELP  
If you need help using the BRIM-T6 or have any questions, comments, or  
suggestions concerning this manual, please contact Cabletron Systems  
Technical Support Department:  
By telephone:  
(603) 332-9400  
Monday-Friday; 8am - 8pm EST  
By CompuServe®:  
By Internet mail:  
By Fax:  
GO CTRON from any ! prompt  
(603) 337-7055  
By BBS:  
(603) 337-3750  
By mail:  
Cabletron Systems, Inc.  
P.O. Box 5005  
Rochester, NH 03866-5005  
1-5  
 
INTRODUCTION  
1-6  
 
CHAPTER 2  
INSTALLATION  
This chapter describes how to unpack, configure, and install the BRIM-T6.  
Because the operation of a BRIM-T6 requires a properly attached and  
configured Token Ring Port Interface Module (TPIM), this chapter also  
includes TPIM configuration and installation instructions.  
CAUTION: Observe all precautions against electrostatic discharge when  
handling the BRIM-T6, TPIMs, and other network devices. Electrostatic  
discharge can damage a devices processing components. Always wear a  
properly grounded anti-static wrist strap when handling network devices.  
Cabletron Systems includes an anti-static wrist strap and instructions with  
all hardware devices.  
2.1 UNPACKING THE BRIM-T6  
1. Carefully remove the BRIM-T6 from the shipping box and leave it in  
its non-conductive bag until ready for inspection and installation.  
2. Attach the wrist strap provided with the BRIM-T6 to your wrist and to  
a proper ground.  
3. Inspect the BRIM-T6 after removing it from the bag. If there is any  
damage, notify Cabletron Systems Technical Support Department (see  
Section 1.5).  
2.2 INSTALLING THE BRIM-T6  
This section describes how to install the BRIM-T6 into MIMs and  
standalone devices. You should have the following items:  
Anti-static wrist strap  
Two coverplate screws and two standoff, or support post, screws  
included with the host device  
#2 Phillips screwdriver  
2-1  
 
INSTALLATION  
2.2.1 Installing the BRIM-T6 into a MIM  
To install the BRIM-T6 into a Media Interface Module (MIM), refer to  
Figure 2-1 and Figure 2-2 and follow these steps:  
1. Disconnect all cables from the MIM as necessary. Note all prior  
cable-to-port connections to ensure proper reconnection.  
2. Remove the MIM from the MMAC and place it on its side with its  
board components facing up.  
3. Remove the BRIM receptacle coverplate from the MIM and the screws  
from the standoffs as shown in Figure 2-1.  
Standoff  
Coverplate  
Figure 2-1. Removing the Coverplate and the Standoff Screws  
4. Place the BRIM behind the BRIM receptacle panel on the MIM,  
aligning the screw holes on the BRIM with their corresponding screw  
holes on the BRIM receptacle panel and on the standoffs as shown in  
Figure 2-2.  
2-2  
 
 
INSTALLATION  
Standoff screw  
BRIM T6  
XMT  
16Mb  
RCV  
STB  
Connector pins  
under BRIM  
Connector  
Coverplate  
screw  
Figure 2-2. Installing the BRIM-T6  
motherboard connector on the MIM by pressing down firmly on the  
rear section of the BRIM until the pins slide all the way into the  
connector holes.  
6. Fasten the BRIM securely to the MIM motherboard with the  
coverplate and standoff screws.  
See Section 2.4 for TPIM configuration and installation instructions.  
2-3  
 
 
INSTALLATION  
2.2.2 Installing the BRIM-T6 into a Standalone Device  
Standalone devices have the same physical setup for BRIM installation as  
MIMs. So you can refer to Figure 2-1 and Figure 2-2 when installing a  
BRIM-T6 into a standalone device.  
To install a BRIM into a standalone device:  
1. Power off the device and remove its chassis cover. Refer to the  
documentation included with the host device for instructions on  
removing the chassis cover.  
2. Remove the BRIM receptacle coverplate and the standoff screws from  
the standoffs as shown in Figure 2-1.  
3. Place the BRIM behind the receptacle panel, aligning the screw holes  
on the BRIM with their corresponding screw holes on the BRIM  
receptacle panel and on the standoffs as shown in Figure 2-2.  
4. Insert the connector pins on the underside of the BRIM into the  
motherboard connector in the device. Press down firmly on the rear  
section of the BRIM until the pins slide all the way into the connector  
holes.  
5. Fasten the BRIM securely to the device motherboard with the  
coverplate and standoff screws.  
6. Reinstall the device chassis cover and then power on the device.  
2.3 CONFIGURING THE BRIM-T6 RING SPEED  
You must configure the BRIM-T6 ring speed to match the ring speed of the  
Token Ring to which it is physically linked. The BRIM-T6 ring speed  
setting does not, however, have to match the ring speed setting of its host  
device.  
Also, you must reset the host device containing the BRIM-T6 after you  
change the BRIM-T6’s ring speed for the change to take effect.  
2-4  
 
INSTALLATION  
The BRIM-T6 default ring speed setting is 16 Mbps. The other available  
setting is 4 Mbps. To configure the ring speed, refer to the settings  
illustrated in Figure 2-3 and follow these steps:  
1. Remove the MIM from the MMAC; if the BRIM-T6 is installed in a  
standalone device, remove the chassis cover from the device to provide  
access to the BRIM-T6’s component board surface.  
2. Slide the jumper down over pins 2 and 3 to select a 16 Mbps setting or  
over pins 1 and 2 to select a 4 Mbps setting.  
3. Reset the device containing the BRIM-T6.  
Ring Speed Jumper Settings  
J3  
2
J3  
2
1
3
1
3
4 Mbps Setting  
16 Mbps Setting  
J3  
Front Panel  
Figure 2-3. BRIM-T6 Ring Speed Settings  
2-5  
 
 
INSTALLATION  
2.4 CONFIGURING AND INSTALLING TPIMs  
This section describes how to configure TPIMs and install them into the  
BRIM-T6.  
2.4.1 Configuring TPIMs  
Cabletron TPIMs are shipped pre-configured to support Ring In/Ring Out  
(RI/RO) communications. For use in the BRIM-T6 as a bridge/routing  
interface, however, they must be reconfigured to support Station port  
applications. Additionally, the TPIM-F2 and TPIM-F3 must be configured  
to support 802.5J lobe operations via fiber optic cable.  
NOTE: TPIM-F2 hardware version 04 and TPIM-F3 hardware version 02  
or higher must be used to provide bridge links via fiber optic cable. Prior  
versions do not support this functionality with the BRIM-T6.  
Refer to the TPIM-F2/TPIM-F3 part number location shown in Figure 2-4  
to determine functional compatibility with the BRIM-T6.  
To configure TPIMs for use with the BRIM-T6, refer to Figure 2-4 and  
follow these steps:  
1. Move the RI/RO and Station switch on the TPIMs to the Station (S or  
STN) position using a blunt, narrow-tipped instrument such as a  
screwdriver or similar instrument.  
2. Move the Fiber Key to the 802.5 setting for the TPIM-F2 and TPIM-F3  
using the same instrument.  
Leave the Phantom Switch setting in the default position for the  
TPIM-T1, TPIM-T2, and TPIM-T4.  
2-6  
 
 
INSTALLATION  
Top View  
(See Below For Settings)  
P
H
A
N
T
O
M
1
0
8
0
2
.
Ctron  
RI/RO  
5
S
T
N
Part  
Number  
S
RI/RO  
TPIM-T1/TPIM-T2/TPIM-T4  
TPIM-F2/TPIM-F3  
Fiber Key Settings  
Phantom Switch Settings  
1 = Cabletron Device (Default)  
0 = Non-Cabletron Device  
Ctron = Cabletron Device  
802.5 = BRIM-T6 Functional  
RI/RO-STN Switch Settings  
RI/RO = Ring In/Ring Out (Default)  
S = Station (BRIM-T6 Functional)  
RI/RO-STN Switch Settings  
RI/RO = Ring In Ring Out (Default)  
STN = Station (BRIM-T6 Functional)  
Figure 2-4. TPIM Configuration for Station Applications  
NOTE: If the switch locations on a TPIM do not match the example  
locations illustrated in Figure 2-4, refer to the TPIM Reference Card  
included with the TPIM. The TPIM Reference Card outlines switch  
locations and settings. For additional help, call Cabletron Systems  
Technical Support Department (see Section 1.5).  
2-7  
 
 
INSTALLATION  
2.4.2 Installing TPIMs  
To install a TPIM into the BRIM-T6, refer to Figure 2-5 and follow these  
steps:  
1. Slide the TPIM into the TPIM slots until the connector pins in the  
BRIM are fully inserted into the connector on the TPIM.  
2. Fasten the mounting screw to secure the TPIM in place.  
BRIM T6  
16Mb XMT  
TPIM  
Slot  
STB RCV  
STACK2  
STACK3  
STACK4  
STACK5  
Connector  
Mounting Screw  
Figure 2-5. Installing a TPIM  
The BRIM-T6 is now ready for operation. The next chapter describes  
procedures for connecting a properly configured and installed BRIM-T6 to  
the network.  
2-8  
 
 
CHAPTER 3  
CONNECTING TO THE NETWORK  
This chapter describes how to connect the following standard network  
cable types to the BRIM-T6:  
Shielded Twisted Pair (STP)  
Unshielded Twisted Pair (UTP)  
Fiber Optic  
NOTE: Remember that the BRIM-T6 is designed and configured for  
connection to network concentrator Station ports only.  
3.1 CONNECTING STP SEGMENTS  
Both the TPIM-T1 and the TPIM-T4 support connection to STP cable  
segments. The TPIM-T1 provides a DB9 interface, and the TPIM-T4  
provides an RJ45 interface (see Appendix A for pinouts).  
To connect an STP segment to a TPIM-T1 or a TPIM-T4, insert the DB9  
or RJ45 connector into its corresponding TPIM port as shown in  
Figure 3-1.  
DB9 Port  
RJ45 Port  
DB9  
Connector  
RJ45  
Connector  
TPIM-T1 Connection  
TPIM-T4 Connection  
Figure 3-1. Connecting STP Segments  
3-1  
 
 
CONNECTING TO THE NETWORK  
3.2 CONNECTING UTP SEGMENTS  
The TPIM-T2 provides an RJ45 interface for connecting UTP cable  
segments (see Appendix A for pinouts).  
To connect a UTP segment to a TPIM-T2, insert the RJ45 connector into  
the RJ45 port as shown in Figure 3-2.  
RJ45 Port  
RJ45  
Connector  
TPIM-T2 Connection  
Figure 3-2. Connecting a UTP Segment  
3.3 CONNECTING FIBER OPTIC SEGMENTS  
Both the TPIM -F2 (for multimode) and TPIM-F3 (for single-mode)  
support connection to fiber optic segments. When connecting a segment to  
the TPIM-F2 or TPIM-F3, consider the following:  
Fiber optic segments with Straight Tip (ST) connectors attach to ST  
ports much like BNC connectors attach to BNC ports. The connector  
must be inserted into the port with the alignment key on the connector  
inserted into the alignment slot on the port. Then the connector must  
be turned to lock it down.  
The physical communication link consists of two strands of fiber optic  
cabling. The Transmit strand (TX) at one end connects to the Receive  
(RX) port at the other end and vice versa.  
3-2  
 
 
CONNECTING TO THE NETWORK  
Dust, dirt, and other contaminants on the ends of the connectors create  
data transmission problems. Avoid touching the ends of the  
connectors. If the ends become dirty, clean them with alcohol using a  
soft, clean, lint-free cloth.  
To connect a fiber optic segment to the TPIM-F2 /-F3, refer to Figure 3-3  
and follow these steps:  
1. Remove the protective plastic covers from the fiber optic ports on the  
module and from the connectors on each fiber strand.  
2. Attach a fiber strand to the module’s receive port (labeled RX) and the  
other fiber strand to the module’s transmit port (labeled TX).  
RX Port TX Port  
Fiber strands  
To RX Port  
To TX Port  
TPIM-F2/TPIM-F3 Connection  
Figure 3-3. Connecting Fiber Optic Segments  
3. Attach the other end of the strand that is connected to the host RX port  
to the destination device’s TX port and attach the other end of the  
strand connected to host TX port to the destination device’s RX port.  
The next chapter describes how to use LANVIEW LEDs to monitor the  
operation of the BRIM-T6 and troubleshooting procedures.  
3-3  
 
 
CONNECTING TO THE NETWORK  
3-4  
 
CHAPTER 4  
MONITORING AND TROUBLESHOOTING  
This chapter describes how to use the LANVIEW LED system to monitor  
the operation of the BRIM-T6. It also describes procedures for resolving  
problems you may encounter establishing a link to a network via the  
BRIM-T6 interface.  
4.1 LANVIEW LEDS  
LANVIEW LEDs are Cabletron Systems’ built-in, visual diagnostic and  
status monitoring system. The comprehensive LANVIEW system for the  
BRIM-T6 consists of four LEDs (Light Emitting Diodes) on the face of the  
BRIM-T6 and one LED on the face of its attached TPIM (Figure 4-1).  
16Mb XMT  
STB RCV  
LANVIEW LEDs  
Figure 4-1. LANVIEW LEDs on the BRIM-T6 and TPIM  
4.1.1 Describing BRIM-T6 LEDs  
The information conveyed by each LED about the operational status of the  
BRIM-T6 is described as follows (also see Table 4-1 summary):  
16Mb (Ring Speed)  
When solid Yellow, 16Mb indicates that the BRIM-T6 ring speed is set to  
16 Mbps. When off, it indicates that the ring speed is set to 4 Mbps.  
4-1  
 
 
MONITORING AND TROUBLESHOOTING  
XMT (Transmit)  
When flashing Green, XMT indicates that the BRIM-T6 is transmitting  
traffic to the Token Ring network. When solid Red, XMT indicates that the  
BRIM-T6 is disabled.  
When blinking Red, XMT indicates a speed fault condition, typically  
caused by a mismatch in ring speeds between the BRIM-T6 and the ring  
occupied by the device to which it is linked. See Section 2.3 for  
information about setting the correct ring speed.  
RCV (Receive)  
When solid Green, RCV indicates that the BRIM-T6 is currently enabled  
to receive Token Ring traffic, and when flashing Yellow, it indicates that it  
is currently receiving Token Ring traffic. When solid Red, RCV indicates  
that the BRIM-T6 is disabled by the host device.  
STB (Standby)  
When solid Yellow, STB indicates a standby condition: the BRIM-T6 is  
not ready or able to transmit data to the ring. Standby conditions are  
caused, typically, when the host device is initializing or when a TPIM is  
not attached to the BRIM-T6.  
LNK (Media Link OK) on attached TPIM  
When solid Green, LNK indicates that a connection exists between the  
BRIM-T6 and a node at the other end of the media segment. When off, (or  
also when Red on the TPIM-T1/-T2/-T4) this LED indicates either that the  
BRIM-T6 is not connected to another device or that the port is not  
receiving a signal.  
4-2  
 
MONITORING AND TROUBLESHOOTING  
Table 4-1. LED Specifications Summary  
LED  
Status  
Description  
16Mb (Ring Speed)  
Solid Yellow  
Off  
16 Mbps  
4 Mbps  
XMT (Transmit)  
RCV (Receive)  
Flashing Green  
Solid Red  
Transmitting Traffic  
Disabled  
Blinking Red  
Speed Fault Error  
Solid Green  
Flashing Yellow  
Solid Red  
Enabled  
Receiving Traffic  
Disabled  
STB (Standby)  
LNK (Link)  
Solid Yellow  
Solid Green  
Standby  
Media Link OK  
4.2 CHECKING THE CONNECTION  
This section provides a checklist for troubleshooting network connection  
problems.  
The LNK LED on the TPIM lights green when there is an established link  
between the BRIM-T6 and the device at the other end of the media  
connection. If, however, the LNK LED lights red or is not lighted, a link  
has not been established. To resolve the problem, try the following  
procedures:  
Check that the host device and the device at the other end of the  
segment have power.  
Check that the TPIM is securely installed in the BRIM-T6 and that the  
BRIM-T6 is securely installed in the host device.  
Check for correct connector-to-port attachments at the BRIM-T6 and  
the destination device.  
Inspect the cabling system (cable and connectors) for damage and  
replace damaged components.  
4-3  
 
 
MONITORING AND TROUBLESHOOTING  
Verify that STP and UTP connectors (DB9 and RJ45) are pinned  
properly. For fiber, verify that the receive-to-transmit connection of  
strands between devices is correct.  
Check that the connection meets the dB loss limit and media  
specifications outlined in Appendix B.  
Check that the BRIM-T6 port is enabled through Local Management.  
Contact Cabletron Systems Technical Support if you still cannot establish  
a network link.  
4-4  
 
TPIM SPECIFICATIONS  
A.1 TWISTED PAIR TPIM PINOUTS: STATION MODE  
Figure A-1 illustrates pinouts for TPIMs that support twisted pair cable  
(STP and UTP) and that are also configured to support Station  
applications.  
.
TPIM-T1  
TPIM-T2/TPIM-4  
5
4
3
2
1
1 2 3 4 5 6 7 8  
9
8
7
6
1 Receive +  
2 Ground  
1 Not Used  
2 Not Used  
3 Transmit -  
4 Receive +  
5 Receive -  
6 Transmit +  
7 Ground  
3 +5V at 250mA  
4 Ground  
5 Transmit -  
6 Receive -  
7 Ground  
8 Ground  
9 Transmit +  
8 Not Used  
Figure A-1. TPIM-T1/T2/T4 Pinouts for Station Mode.  
A.2 FIBER OPTIC TPIM SPECIFICATIONS  
The TPIM-F2 supports Multimode fiber optic cabling, and the TPIM-F3  
supports Single-mode fiber optic cabling.  
Table A-1 lists TPIM-F2 specifications, and Table A-2 lists TPIM-F3  
specifications.  
A-1  
 
 
TPIM SPECIFICATIONS  
Table A-1. TPIM-F2 Performance Specifications  
Typ ica l  
Value  
Worst Case  
Budget  
Typical  
Budget  
Parameter  
Worst Case  
Receive  
-30.5 dBm  
-28.0 dBm  
Sensitivity  
Peak Input  
Power  
-7.6 dBm  
-8.2 dBm  
Transmitter Power:  
50/125 µm  
62.5/125 µm  
100/140 µm  
-13.0 dBm  
-15.0 dBm  
-12.0 dBm  
-9.0 dBm  
13.0 dB  
16.0 dB  
19.0 dB  
17.5 dB  
20.5 dB  
23.5 dB  
-10.0 dBm  
-7.0 dBm  
Bit Error Rate: Better than 10-10  
The transmitter power and receive sensitivity levels given in Table A-1 and  
Table A-2 are Peak Power Levels after optical overshoot. A Peak Power  
Meter must be used to correctly compare the given values to those  
measured on any particular port.  
Table A-2. TPIM-F3 Specifications  
Parameter  
Typical  
Minimum  
Maximum  
Transmitter  
1300 nm  
1270 nm  
1330 nm  
Peak Wave Length  
Spectral Width  
Rise Time  
60 nm  
100 nm  
5.0 nsec  
5.0 nsec  
50.7%  
3.0 nsec  
2.5 nsec  
50.1%  
2.7 nsec  
2.2 nsec  
49.6%  
Fall Time  
Duty Cycle  
Bit Error Rate: Better than 10-10  
A-2  
 
   
APPENDIX B  
MEDIA SPECIFICATIONS AND REQUIREMENTS  
This Appendix provides information about cabling media (Fiber, STP,  
UTP) used with the BRIM-T6.  
B.1 FIBER OPTIC  
Table B-1 defines total signal attenuation tolerances for both single-mode  
and multimode fiber cabling. Both types of cabling have a typical constant  
attenuation rate per km of fiber cable, and each connector on the cable  
system contributes significant additional attenuation. Maximum drive  
distances define maximum allowable cable length.  
Table B-1. Signal Tolerances for Fiber Optic Cable  
Total  
Allowable  
Attenuation  
Maximum  
Drive Distance  
Cable Type  
Multimode  
50/125 µm  
62.5/125 µm  
100/140 µm  
13.0 dB or less  
16.0 dB or less  
19.0 dB or less  
2 km (2187.2 yards)  
Typical Signal Attenuation Rate: 2.5 dB/km.  
Single-Mode  
8/125-12/125 µm  
10.0 dB or less  
10 km (10936.0 yards).  
Typical Signal Attenuation Rate: 0.5 dB/km.  
NOTE: The attenuation values shown include the attenuation attributable  
to cables, connectors, patch panels, and reflection losses due to impedance  
mismatches in the segment.  
B-1  
 
 
MEDIA SPECIFICATIONS AND REQUIREMENTS  
B.2 SHIELDED TWISTED PAIR (STP)  
STP cable categories are listed as follows:  
IBM Type 1 consists of two STP lengths of 22 AWG solid wire for  
data. There are three versions of Type 1: Indoor, Outdoor, and Plenum.  
It is typically used for the longest cable runs within the walls of  
buildings.  
IBM Type 2 is similar to Type 1 data cable, but has four additional  
UTP lengths of 22AWG solid wire carried outside of the shield casing.  
There are two versions of Type 2: Plenum and Outdoor. It is typically  
used for voice communication and often used to wire cable runs within  
the walls of buildings.  
IBM Type 6 consists of two STP lengths of 26AWG stranded wire for  
data. Used in patch panels or to connect devices to/from wall jacks.  
Attenuation for Type 6 cable is 150% of Type 1 cable (e.g., 66 m of  
Type 6 =100 meters of Type 1).  
IBM Type 9 is similar to Type 1, but uses 26 AWG solid wire.  
Attenuation for Type 9 cable is 150% of Type 1 cable (e.g., 66 m of  
Type 9 = 100 meters of Type 1).  
Impedance and Attentuation  
The attenuation values shown Table B-2 include the attenuation of the  
cables, connectors, patch panels, and reflection losses due to impedance  
mismatches in the segment.  
Table B-2. STP Cable Specifications  
Type  
Freq.  
Impedance  
Attenuation  
1 & 2  
4 MHz  
16 MHz  
150+ 15%  
150+ 15%  
<22 dB/km (6.7 db/1000 ft.)  
<45 dB/km (13.7 db/1000 ft.)  
6 & 9  
4 MHz  
16 MHz  
150+ 15%  
150+ 15%  
<33 dB/km (10 db/1000 ft.)  
<66 dB/km (20 db/1000 ft.)  
B-2  
 
 
MEDIA SPECIFICATIONS AND REQUIREMENTS  
Maximum Lobe Length  
Lobe length is the physical length of the cable connecting a station to its  
TCU port. Table B-3 shows maximum lobe length according to ring speed.  
The length figures are for total lengths of STP cable only.  
Maximum Trunk Lengths  
The maximum trunk cable length between active devices is equal to the  
maximum drive distance. When the neighboring device is passive, the  
Maximum Drive Distance must not exceed the combined length of twice  
the longest trunk cable plus the longest lobe cable attached to the passive  
ring segment (see Table B-3).  
.
Table B-3. STP Maximum Lengths  
Max. Lobe Length  
Max. Drive Distance  
IBM  
Type  
4 Mbps  
16 Mbps  
4 Mbps  
16 Mbps  
1 & 2  
6 & 9  
200 meters  
(660 feet)  
100 meters  
(300 feet)  
770 meters  
(2525 feet)  
346 meters  
(1138 feet)  
30 meters  
(99 feet)  
30 meters  
(99 feet)  
513 meters  
(1683 feet)  
230 meters  
(755 feet)  
NOTE: IBM Types 6 & 9 are to be used only for lobe connections from  
station to wall jack and patch panels.  
B.3 UNSHIELDED TWISTED PAIR (UTP)  
TPIM-T2 supports voice-grade UTP cable (as described in EIA/TIA TSB  
568) and IBM Type 3 cable.  
WARNING: Do not connect UTP cabling to any non-Token Ring network  
conductors (telephone, etc.) or ground. If in doubt, test wiring before  
using. Telephone battery and ringing voltages used in UTP telephone  
circuits may present a shock hazard and may damage Token Ring  
equipment when connected to token ring cabling.  
B-3  
 
 
MEDIA SPECIFICATIONS AND REQUIREMENTS  
UTP consists of four pairs of 24 AWG solid wire for data or voice  
communication and is typically used to wire cable runs within the walls of  
buildings. In some installations, existing UTP building wiring can be used  
for Token Ring cabling. UTP cable must conform to the limits shown in  
Table B-4.  
Better grades of UTP cable known as supergrade or level 4 are now  
available. These improved grades of UTP can often be used to permit  
operation at 16 Mbps on longer lobe cables.  
Attenuation and Impedance  
The attenuation values shown in Table B-4 include the attenuation of the  
cables, connectors, patch panels, and reflection losses due to impedance  
mismatches in the segment.  
Table B-4. UTP Voice Grade and Category 3 Specifications  
Frequency  
Impedance  
Attenuation  
1 MHz  
4 MHz  
100±15%  
100±15%  
100±15%  
100±15%  
<26 dB/km (8 dB/1000 ft.)  
<56 dB/km (16 dB/1000 ft.)  
<98 dB/km (30 dB/1000 ft.)  
<131 dB/km (40 dB/1000 ft.)  
10 MHz  
16 MHz  
B-4  
 
 
MEDIA SPECIFICATIONS AND REQUIREMENTS  
Maximum Lobe Lengths  
The lobe length is the physical length of the cable connecting a station to  
its TCU port. Table B-5 shows maximum lobe length according to ring  
speed. Length figures are for total lengths of UTP cable only.  
Table B-5. UTP Maximum Lobe Lengths  
Maximum Lobe Length  
UTP Cable Type  
4 Mbps  
16 Mbps  
Category 3  
Category 4  
Category 5  
100 meters  
(330 feet)  
60 meters  
(198 feet)  
100 meters  
(330 feet)  
60 meters  
(198 feet)  
130 meters  
(429 feet)  
85 meters  
(280.5 feet)  
B-5  
 
 
MEDIA SPECIFICATIONS AND REQUIREMENTS  
B-6  
 

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