Cabletron Systems MMAC-M5FNB User manual

MMAC-M5FNB
MULTI-MEDIA ACCESS CENTER
OVERVIEW AND SETUP GUIDE
CABLETRON SYSTEMS, P.O. Box 5005, Rochester, N.H. 03867-0505

NOTICE
i
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 September 1994 by
Cabletron Systems, Inc.
P.O. Box 5005
Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order number: 9030748-02 September 1994
SPECTRUM , LANVIEW , and Multi Media Access Center are
registered trademarks and MMAC-M5FNB, MIM, and M5PSM are
trademarks of Cabletron Systems, Inc.
Ethernet is a trademark of Xerox Corporation.
IBM is a registered trademark of International Business Machines
Corporation

NOTICE
ii
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 de Communications du Canada.
BABT NOTICE
This device is approved under BABT General Approval No.
NS/G/1234/J/100003 for indirect connection to public
telecommunications systems in the United Kingdom.

NOTICE
iii
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.

CONTENTS
v
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 Using This Manual ....................................................................1-1
1.2 Using the MMAC-M5FNB Manual Set ....................................1-2
1.3 Getting Help...............................................................................1-2
1.4 The MMAC-M5FNB Multi Media Access Center.....................1-3
1.5 MMAC-M5FNB Features..........................................................1-4
CHAPTER 2 INSTALLATION REQUIREMENTS
AND SPECIFICATIONS
2.1 Site Guidelines...........................................................................2-1
2.2 MMAC-M5FNB Configuration Guidelines...............................2-2
2.3 Operating Specifications............................................................2-2
CHAPTER 3 MMAC-M5FNB SETUP
3.1 Unpacking the MMAC-M5FNB ................................................3-1
3.2 Setting Up the MMAC-M5FNB.................................................3-2
3.2.1 Rack Mounting the MMAC-M5FNB............................3-2
3.2.2 Rack Mounting the Cable Tie Tray..............................3-4
3.2.3 Inserting the Fan Tray .................................................3-5
3.2.4 Installing the Power Supply Module............................3-6
3.2.5 Installing the Security Bars.........................................3-9
3.2.6 Powering Up the MMAC-M5FNB..............................3-11

INTRODUCTION
Page 1-1
CHAPTER 1
INTRODUCTION
The MMAC-M5FNB™ Multi Media Access Center offers
maximum flexibility and convenience in the design and operation of
your network.The enclosure provides space for one
Repeater/Management Module and up to five Media Interface
Modules (MIM™); or, by removing one of the five MIMs, you can add a
second, load-sharing power supply module.
This manual is an installation and reference guide. It lists the
features and options of the MMAC-M5FNB and explains how to
install the fan tray, power supply(ies), and security bars.You should
read through this manual prior to using the MMAC-M5FNB to gain a
full understanding of the MMAC-M5FNB and its capabilities.
CAUTION: Only qualified personnel should install or service this unit
and its modules!
1.1 USING THIS MANUAL
Chapter 1, Introduction , discusses the features and capabilities of
the MMAC-M5FNB.
Chapter 2, Installation Requirements and Specifications , lists
the location requirements that must be met before you install the
MMAC-M5FNB on your network.This chapter also includes some
MIM configuration guidelines, environmental guidelines, and
operating specifications for the MMAC-M5FNB and related Power
Supply Modules (M5PSM™).
Chapter 3, MMAC-M5FNB Setup , contains instructions for rack
mounting your MMAC-M5FNB, inserting the fan tray, installing the
power supply(ies), installing the security bars, and powering up the
MMAC-M5FNB.

INTRODUCTION
Page 1-2
1.2 USING THE MMAC-M5FNB MANUAL SET
Other manuals have been developed for the Repeater/Management
modules and for each MIM that can be installed in your
MMAC-M5FNB. These manuals explain how to install the individual
modules into the MMAC-M5FNB, how to attach cable segments to the
modules, and how to test those segments after they have been
installed. Specifications for all modules are included in each manual.
Additional manuals have been developed on how to use Cabletron
Systems’ Network Control Management software packages.
Each manual in this set assumes that you have a general working
knowledge of Ethernet or IEEE 802.3, 802.5, or FDDI type data
communications networks and their physical layer components.
1.3 GETTING HELP
If you need additional support related to the MMAC-M5FNB, or if you
have any questions, comments, or suggestions related to this manual,
contact Cabletron Systems Technical Support. Before calling, please
have the following information ready:
• The product type (MMAC-M5FNB), and the product serial
number.The serial number is located on the front panel of the
MMAC, and the product type is on the fan tray label.
You can contact Cabletron Systems Technical Support Department by
any of the following methods:
By phone: Monday through Friday between
8 A.M. and 8 P.M. Eastern
Standard Time at [phone].
By mail: Cabletron Systems, Inc.
PO Box 5005
Rochester, NH 03867-0505
By CompuServe
®
: GO CTRON from any ! prompt

INTRODUCTION
Page 1-3
By Internet mail: [email protected]
By FAX: [phone]
By BBS: [phone] (4 lines available)
1.4 THE MMAC-M5FNB MULTI MEDIA ACCESS CENTER
The Cabletron Systems MMAC-M5FNB is a complete modular
approach to integrated networks.The MMAC-M5FNB supports Local
Area Networks compliant to IEEE 802.3, IEEE 802.5, and FDDI
standards. It also supports all of the Cabletron Systems Media
Interface Modules (MIMs).
A variety of IEEE 802.3, IEEE 802.5, and FDDI compliant media can
be connected to the MMAC-M5FNB, including shielded and
unshielded twisted pair, fiber optic cable, thick or thin coaxial cable,
and standard AUI transceiver cable. Each media type has a MIM
which, when installed into the MMAC-M5FNB, is compatible with all
other MIMs installed in that unit.You can have complete network
integration of a variety of media through a single source.
The MMAC-M5FNB is designed so that network expansions or
changes in media types can be done without bringing down the entire
network. In a matter of minutes, you can add, change, or replace
MIMs without turning off the MMAC-M5FNB or using any special
tools.This design also allows the MMAC-M5FNB to adapt to
ever-changing industry standards. Figure 1-1 (following page)
illustrates an MMAC-M5FNB equipped with a variety of MIM cards.
CAUTION: Only qualified personnel should install or service this unit
and its modules!

INTRODUCTION
Page 1-4
Figure 1-1. MMAC-M5FNB with Optional MIMs
1.5 MMAC-M5FNB FEATURES
Universal Power Supply
The MMAC-M5FNB power supply senses and automatically adjusts to
the input voltage and frequency. No additional adjustments are
necessary.
Built-in Power Supply Protection
The power supply module(s) automatically powers down under any of
the following conditions: thermal overload (thermal protection);
shorted output (over current, or short circuit protection); or excess
output voltage (over voltage protection).The power supply will
automatically recover when a thermal overload condition is corrected;
when an over current or over voltage condition is corrected, the power
POWER OK FAIL
FAULT
+5 VOLT TEST
-5 VOLT TEST
+12 VOLT TEST
-9 VOLT TEST
COMMON
POWER FAIL
SN
MMAC-M5FNB
The Complete Networking Solution™
Multi Media Access Center
100-125V ~ 5A
220-250V ~ 3A
50/60Hz
100-125V ~ 5A
220-250V ~ 3A
50/60Hz
M5PSM
ACTIVE UTP
TOKEN RING
1
X
2
X
3
X
4
X
6
X
5
X
7
X
8
X
9
X
10
X
12
X
11
X
LNK
PEN
16MB MGMT
ERR
TRMIM-22A
SN
16MB
TRMIM-4A
SN
MGMT
ACTIVE UTP
TOKEN RING
ERR
TX
RX
R
I
N
G
I
N
1
X
2
X
3
X
4
X
6
X
5
X
TX
RX
R
I
N
G
O
U
T
7
X
8
X
9
X
10
X
12
X
11
X
RI RO
CRS16
WFLT
WRAP
FO
FLNK
LNK
PEN
RCV POK
CLN
TPRMIM-36
10BASE-T
ETHERNET
14
RCV POK
1
1
2
3
4
5
6
7
8
9
10
11
12
13
13
2
26
15
ETHERNET
B C
CLN
14
15
16
17
18
19
20
21
22
23
24
25
26
R
C
V
L
N
K
R
C
V
L
N
K
SN
CXRMIM
2
3
4
5
6
7
8
9
10
11
12
13
10BASE-2
ETHERNET
ETHERNET B C CLN
POK
RCV
POKRCV POKRCV
1
SN
M5PSM
POWER OK FAIL
FAULT
+5 VOLT TEST
-5 VOLT TEST
+12 VOLT TEST
-9 VOLT TEST
COMMON
POWER FAIL
SN
EMME
SN
RESET
ON PWR
M
O
D
E
M
C
O
N
S
O
L
E
BOK
STBYA
STBYB
RCVA
RCVB
RCVC
RCVD
ON
ERR
STBYC
STBYD
CLNA
CLNB
CLNC
CLND
PWR
ETHERNET
A
U
I
1
A
U
I
2

INTRODUCTION
Page 1-5
supply requires AC power cycling (turn power switch off, then on
again) to recover.A FAULT LED on the power supply module indicates
when an over current condition has occurred.
Note: If you remove, then re-insert, the fan tray with no MIMs installed
in the chassis and the power on, you will have to turn each power
supply off, then on again to re-start.
Power OK Signal
The same signal that illuminates the Power OK LED on the power
supply module(s) will also alert the management module that the
power supply is functioning normally.
Power Factor Correction
The MMAC-M5PSM meets the EN60555-2 limits for power factor
correction, which may be required by utility companies in the near
future.
The power factor correction feature provides a number of advantages.
By improving this factor to meet the EN60555-2 limits, line noise and
peak current levels are dramatically reduced and the amount of power
available to the user is increased. Power factor correction also reduces
stress on fuses, circuit breakers, wall sockets, wiring, and
transformers.
Redundant Power with Current Sharing
The MMAC-M5FNB can operate with either one or two power supply
modules. If two MMAC-M5PSMs are installed, they share the power
load requirements of the installed MIMs; if one power supply fails,the
second automatically assumes the entire load.This ensures that your
network will remain operational until a replacement MMAC-M5PSM
can be installed.The two power supply modules use a current sharing
scheme such that each power supply provides 50% of the required load
( ± 5%, 5V output only) under all load conditions.

INTRODUCTION
Page 1-6
If a redundant power supply is not desired, a fifth MIM can be
installed in the second power supply module slot.
Note: The power requirements of some FDDI MIM configurations
require dual power supplies. Consult the appropriate manuals for
details.
Hot Swapping
You have the option to “hot swap” power supply modules in the
M5FNB. This allows you to remove or insert power supplies without
powering down the M5FNB.
Note: If you have an FDDI configuration in your chassis which
requires the use of two power supplies, hot-swapping a power supply
unit may cause an interruption in network service.
Flexible Network Bus
The MMAC-M5FNB’s Flexible Network Bus allows the M5PSMs to
load share; it also allows Token Ring or FDDI modules to
communicate with one another, and to co-exist with Ethernet modules
in the same hub. Cabletron Systems offers a full line of media
interface modules that let you create new networks and extend and
connect existing networks.
Removable Fan Tray
The MMAC-M5FNB is equipped with a removable fan tray, which
means that you can replace a failed fan unit quickly, without any
special tools.The fan tray incorporates an LED that indicates fan
status; the same signal that illuminates the LED also alerts the
management module that the fans are operating properly.
WARNING: The fan tray is hot-swappable; however, the MMAC
chassis should not be run for extended periods of time without the fans
installed, as it will quickly overheat.

INTRODUCTION
Page 1-7
Rack Mountable Chassis
The MMAC-M5FNB chassis can be mounted into a standard 19"
(48.26 cm) equipment rack. Separate rack mount brackets are
included that allow the unit to be flush mounted or recessed 3" from
the front plane of the rack mount unit for safety and ease of network
connections.
Security Bars
A pair of security bars which fit over the knurled knobs that secure
the MIMs to the chassis protect the hub from unauthorized removal or
insertion of modules.

INSTALLATION REQUIREMENTS AND SPECIFICATIONS
Page 2-1
CHAPTER 2
INSTALLATION REQUIREMENTS
AND SPECIFICATIONS
This chapter describes the following:
• Site guidelines that must be met before installing an
MMAC-M5FNB onto your network
• MMAC configuration guidelines
• Operating specifications for the MMAC-M5FNB enclosure and
power supply module
CAUTION: Only qualified personnel should install or service this unit
and its modules.
2.1 SITE GUIDELINES
The following guidelines must be followed when you select a site for
the MMAC-M5FNB. If not, unsatisfactory network performance may
result.
• An unrestricted free surface area of 43.2 cm (17 in.) wide,
37.6 cm (14.8 in.) deep and 37.6 cm (14.8 in.) high is
needed for the MMAC-M5FNB enclosure.
• If the MMAC-M5FNB is to be placed on a shelving unit,
the shelf must be able to support 33.8 kg (75 lb.) of static
weight.
• If the MMAC-M5FNB is to be rack-mounted, care must
be taken to ensure that the rack used will support the
unit and that the rack remains stable with the
MMAC-M5FNB installed. In order to allow proper
cooling within the rack, there must be 7.6 cm (3 in.) of
clearance above the unit and 5 cm (2 in.) of clearance on
either side of the unit.

INSTALLATION REQUIREMENTS AND SPECIFICATIONS
Page 2-2
• A USA standard 3 prong power receptacle must be located
within 2.13 m (7 ft.) of the site.
• The temperature of the location must be maintained between
5 ° and 40 ° C (41 ° to 104 ° F).Temperature changes of greater
than 10 ° C (18 ° F) per hour must not occur.
2.2 MMAC-M5FNB CONFIGURATION GUIDELINES
The MMAC-M5FNB has four slots that accept media interface
modules when the hub is configured with dual power supplies,and five
MIM slots when the hub is configured with one power supply. (The
slots are numbered from right to left;slot #1 is a half-width slot that is
reserved for a management module.) Cabletron Systems management
modules are equipped with a firmware-based management tool called
Local Management, which lets you control the MMAC MIMs.
Management modules are also SNMP compliant,which means that an
MMAC equipped with a management module can be managed
remotely by SNMP management software such as Cabletron Systems’
Remote LANVIEW
®
/Windows, Remote LANVIEW
®
for SunNet
Manager, or any one of the SPECTRUM
®
for Open Systems suite of
management products.
You can combine Token Ring, Ethernet, and FDDI MIMs in the same
MMAC; be sure to consult the appropriate management module and
MIM installation guides for detailed setup information.
2.3 OPERATING SPECIFICATIONS
The following lists the specifications for the MMAC-M5FNB enclosure
and for the MMAC-M5PSM. Cabletron Systems reserves the right to
change these specifications without notice.

INSTALLATION REQUIREMENTS AND SPECIFICATIONS
Page 2-3
PHYSICAL
M5FNB
Dimensions: 14.8" high x 17" wide x 14.8" long (37.6 cm high
x 43.2 cm wide x 37.6 cm long)
Weight: 17.3 lb (7.8 kg) with fan tray
M5PSM
Dimensions: 9.5"highx3"wide x 13.625" deep (24.1 cm high
x 7.6 cm wide x 34.6 cm deep)
Weight: 6.75 lb (3.0 kg)
POWER SUPPLY MODULE REQUIREMENTS
The MMAC-M5FNB power supply senses and automatically adapts to
the input voltage and frequency.
Input Frequency: 47 to 63 Hz
Input Voltage: 100 to 125 Vac
200 to 250 Vac
Input Current: 5 A @ 115 Vac
2.5 A @ 230 Vac
Fuses: One 250 V, 10 Amp fuse (not
user serviceable)
BTUs/hour: 1575.2

INSTALLATION REQUIREMENTS AND SPECIFICATIONS
Page 2-4
Note: The maximum power out of each M5PSM power supply will not
exceed 300 watts.
This unit is intended for indoor use only, and must be used with a
two-conductor-plus-ground power supply cord with a minimum
HO5VV-F cord, minimum 0.75 mm
2
diameter conductors, an IEC 320
female receptacle (for connection to power supply), and a male plug
appropriate to the country of installation.
CAUTION: The supplied power cord is not designed for European
installations. This unit is intended to be operated from a minimum 6
ampere branch circuit in Europe.
Table 2-1. Output Voltage Specifications
Output
Voltage
(Vdc)
Minimum
Load
(amps)
Maximum
Load
(amps)
Maximum
Power
(watts)
+5 ( ± 1%) 3 40 200
+12 ( ± 6%) 0 5 60
-5 ( ± 3%) 0 2 10
-9 ( ± 3%) 0 11 99

INSTALLATION REQUIREMENTS AND SPECIFICATIONS
Page 2-5
Figure 2-1. The MMAC-M5PSM
LEDs
OK When lit, this green LED indicates that the
(Power Supply) power supply module is operating correctly; a
signal is also sent to the management/repeater
module to indicate that the power supply is
functioning properly.
Fail When lit, this red LED indicates a loss of input
(Power Supply) power, loss of regulation on any output, or the
activation of any power fail circuit protection.
Fault When lit, this red LED indicates that an over
(Power Supply) current (short circuit) condition has occurred;
this condition could result from inadequate
power to the hub (only one power supply
installed where two are required), or from a
problem in the chassis itself. Once the over
100-125V ~ 6A
220-250V ~ 3A
50/60Hz
M5PSM
POWER OK FAIL
FAULT
+5 VOLT TEST
-5 VOLT TEST
+12 VOLT TEST
-9 VOLT TEST
COMMON
POWER FAIL
SN

INSTALLATION REQUIREMENTS AND SPECIFICATIONS
Page 2-6
currentconditionhasbeencorrected,thepower
supply requires AC power cycling (turn the
powerswitch offfor atleastone second,thenon
again) to recover.
Fan Tray LED This LED is green when all the fans are
operating properly.
The LED turns red when any fan slows to half
speed or less, and signals the management/
repeater module that there is a fan tray
problem.
Note: When the M5FNB is first powered up, this LED will be red for a
moment until the fans are operating at the proper speed.
TEST POINTS
Each power supply module has service-accessible test points for
measuring each output, as well as for testing the power fail indication
signal (see Figure 2-1, above).
Test points can measure each individual unit even when it is installed
in parallel with another unit.
Note: The M5PSM test points represent the power supply output
voltages and not the bus voltage seen by the Media Interface Modules.
The voltages measured at the test points are one diode voltage drop
above the bus voltage. The following are the voltage tolerances which
ensure that the bus voltage is within specified limits:
+5 V test 4.85 V to 5.45 V
+12 V test 11.50 V to 13.10 V
-5 V test -5.0 V to -5.65 V
-9 V test -8.65 V to -10.00 V
Power Fail Indication:
Power good <1 V
Power bad >4 V

INSTALLATION REQUIREMENTS AND SPECIFICATIONS
Page 2-7
SAFETY
Designed in accordance with UL1950, CSA C22.2 No. 950, IEC950,
and EN60950. Meets the EMI requirement of FCC Part 15 Class A
and EN55022 Class A. Meets the immunity requirements of
EN50082-1.
This unit must be assembled and used in accordance with the
instructions in this manual.
Note: It is the responsibility of the person who sells the system of which
the M5PSM will be a part to ensure that the total system meets allowed
limits of conducted and radiated emissions.

MMAC-M5FNB SETUP
Page 3-1
CHAPTER 3
MMAC-M5FNB SETUP
This chapter contains instructions to help you set up Cabletron
Systems’ MMAC-M5FNB. You will not need any special tools or
equipment to set up the MMAC-M5FNB, but you must follow all
guidelines listed in Chapter 2, Installation Requirements and
Specifications.
CAUTION: Only qualified personnel should install or service this unit
and its modules.
3.1 UNPACKING THE MMAC-M5FNB
Before you install the MMAC-M5FNB, you should inspect the unit.
To unpack the MMAC-M5FNB:
1. Remove the MMAC-M5FNB and fan tray from the shipping box.
Save the shipping box and materials in the event the
MMAC-M5FNB has to be reshipped.
2. Slide the two foam end caps off the MMAC-M5FNB, and remove
the unit from the protective plastic bag. Set the MMAC-M5FNB
aside in a safe place.
3. Remove the accessory package and verify that it contains two
mounting brackets, a cable tie tray, and two security bars.
Contact Cabletron Systems Technical Support immediately if any
discrepancy exists.