GarrettCom Mini-Concentrator Magnum 700X User manual

GARRETT GARRETT
Corporate Headquarters
Garrett Communications
213 Hammond Avenue
Fremont, CA 94539
Phone [phone]
FAX [phone]
WWW: http://www.garrettcom.com
E-mail: [e-mail]
Magnum 700X Mini-Concentrator
Installation and User Guide
eu
Magnum 700X
Mini-Concentrator
GARRETT

Magnum 700X Mini-Concentrators Installation and User Guide (05/98)
GARRETT
i
Magnum

700X
Mini-Concentrator
Installation and User Guide
Part #: 84-00017 (R5/98)
Trademarks
UL is a registered trademark of Underwriters Laboratories
Ethernet is a trademark of Xerox Corporation
Velcro is a trademark of Velcro USA
UL is a registered trademark of Underwriters Laboratories
Magnum is a trademark of Garrett Communications, Inc.
Important: Magnum 700X Mini-Concentrators contain no user serviceable
parts. Attempted service by unauthorized personnel shall render any and all
warranties null and void. If problems are experienced with a Magnum 700X,
consult Section 5, Troubleshooting, of this User Guide.
1998 Garrett Communications, Inc. All rights reserved. No part of this publication
may be reproduced without prior written permission from Garrett Communications, Inc.
Printed in the United States of America.

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Contacting Garrett Communications
Please use the mailing address and phone and fax numbers listed below:
GarrettCom, Inc.
47823 Westinghouse Drive
Fremont, CA 94539
Phone [phone]
Fax [phone]
WWW: http://www.garrettcom.com
E-mail: [e-mail]
Federal Communications Commission
Radio Frequency Interference Statement
This equipment generates, uses and can radiate frequency energy and if not
installed and used properly, that is in strict accordance with the manufacturer's
instructions, may cause interference to radio communication. It has been tested and
found to comply with the limits for a Class A computing device in accordance with the
specifications in Subpart J of Part 15 of FCC rules, which are designed to provide
reasonable protection against such interference when operated in a commercial
environment. Operation of this equipment in a residential area is likely to cause
interference, in which case the user at his own expense will be required to take whatever
measures may be required to correct the interference.

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Table of Contents
1.0 SPECIFICATIONS ........................................................................................1
1.1 Technical Specifications..................................................................................... 1
1.2,3 Specifications - Port Modules (RPMs and BPMs).......................................... 3
1.4 Ordering Information.......................................................................................... 4
2.0 INTRODUCTION..........................................................................................5
2.1 Inspecting the Package and Product.................................................................... 5
2.2 Product Description ........................................................................................... 5
2.2.1 Magnum 700X and 700X-Br ** Chassis................................................... 6
2.3 Magnum 700X - Repeater Port Modules (RPMs)............................................... 7
2.3.1 RPM-BNC................................................................................................... 7
2.3.2 RPM-AUI.................................................................................................... 8
2.3.3 RPM-DTE ................................................................................................. 10
2.3.4 RPM-FST (Fiber ST, Twist-lock Connector) .......................................... 10
2.3.5 RPM-FSC (Fiber SC, Snap-in Connector) .............................................. 11
2.3.6 RPM-SMF (Single Mode Fiber)............................................................... 11
2.3.7 RPM-TP (Twisted Pair)......................................................................... 13
2.3.8 PM-FP ....................................................................................................... 13
2.4 Magnum 700X and 700X-Br ** - Bridge Port Modules (BPMs)..................... 14
2.4.1 BPM-BNC................................................................................................. 14
2.4.2 BPM-AUI.................................................................................................. 15
2.4.3 BPM-FST .................................................................................................. 15
2.4.4 BPM-TP .................................................................................................... 16
2.5 Features and Benefits........................................................................................ 17
2.6 Applications...................................................................................................... 18
3.0 INSTALLATION.........................................................................................19
3.1 Locating Magnum 700X Mini-Concentrators................................................... 19
3.2 Connecting Ethernet Media .............................................................................. 19
3.2.1 Connecting ThinNet 10BASE2 (BNC)..................................................... 20
3.2.2,3 Connecting ThickNet 10BASE5 (AUI and DTE).................................. 20
3.2.4,5,6 Connecting Fiber Optic (3 types)................................................... 20,21
3.2.7 Connecting Twisted Pair (RJ-45, Unshielded or Shielded) ....................... 22
3.3 Removing the PM Face Plate............................................................................ 22
3.4 Installing PM Cards.......................................................................................... 24
3.5 Removing PM Cards......................................................................................... 25
4.0 OPERATION ...............................................................................................26
4.1 Repeater Functionality...................................................................................... 26
4.2 BPM Local Bridge Functionality **................................................................ 26
4.3 Powering the Magnum 700X Mini-Concentrator.............................................. 29
4.4,5 Chassis LEDs, PM LEDs.............................................................................. 30
5.0 TROUBLESHOOTING ...............................................................................31
5.1 Before Calling for Assistance ........................................................................... 31
5.2 When Calling for Assistance............................................................................. 32
5.3 Return Material Authorization (RMA) Procedure ............................................ 32
5.4 Shipping and Packaging Information................................................................ 33
APPENDIX A: WARRANTY INFORMATION...........................................................34
** CHANGES MADE IN THIS REVISION

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MAGNUM 


ETHERNET CONNECTIVITY PRODUCTS
"DESIGNED AND MANUFACTURED IN THE USA"
Overview
Garrett Communications offers the Magnum line of Ethernet LAN physical layer
connectivity products with industry-standard functionality. Magnum products are
available worldwide through OEMs, integrators, representatives, retailers and
international distributors.
Dual Speed 8-port & 16-port Stackable, 10/100 auto-sensing per port
Stackable Hubs, SNMP Optional
10Mb series and 100Mb series, both with optional port modules
Switching Hubs, unmanaged 500-Series and managed 5000-Series
Two-Port Switches
100Mb RJ-45port + 10 / 100Mb combo port, or +FDX fiber port
Workgroup Hubs
10Mb series and 100Mb series, both with optional port modules
Personal Hubs 

, 100Mb
100Mb 4-port with up-link, 6-port with one switched 10/100Mb
Personal Hubs, 10Mb series
8-port + AUI, stackable to 5 high, + optional BNC of fiber port
8 or 9-port and 4 or 5-Port Personal Hubs, w/ man. up-link sw.
Media Converters, 10Mb and 100Mb series
All media combinations, incl. fiber ST, SC, mm., single mode
The “X-line” of configurable MiXed Media products:
Stackable Concentrators, SNMP optional, 13-Ports
Mini-Concentrators, 7 Ports, Repeaters, 2-Ports
Repeater Port Modules (RPMs),6 types for Ethernet media
Bridge Port Modules (BPMs), 4 types, for segment isolation
Workgroup Bridges, 10Mb series
Local segmentation for all media types
Fan-Outs, 10Mb series
2, 4 and 8 Port Models
Transceivers, 10Mb and 100Mb series
10Mb Mini-Transceivers and Coax Models, All Types
100Mb MII-TX and MII-FX models May. ‘98

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1.0 SPECIFICATIONS
This chapter gives the specifications of the Magnum 700X mixed-media
concentrator, as well as those of the various Port Modules (PMs).
1.1 Technical Specifications
Performance
Data Rate: 10 Mbps
RPM Partitioning: Enforced after 32 consecutive collisions.
RPM Reconnect: Occurs after 512 bits error-free transmission.
BPM Auto-learning Address List: 256 node capacity.
BPM Filtering and Forwarding Rate: 14,880 pps max.
Maximum Ethernet Segment Lengths
DTE (AUI Drop Cable) - 50 m (164 ft)
10BASE-T (twisted pair) - 100 m (328 ft)
Shielded twisted pair - 150m (492 ft)
10BASE2 ThinNet (BNC) - 185 m (607 ft)
10BASE5 ThickNet - 500 m (1,640 ft)
FOIRL multi-mode Fiber optic - 1 km (3,281 ft)
10BASE-FL multi-mode Fiber optic - 2 km (6,562 ft)
Single-mode Fiber optic - 10 km (32,810 ft)
Network Standards
Ethernet V1.0/2.0 IEEE 802.3: 10BASE-T, 10BASE5, 10BASE2,
10BASE-FL & FOIRL, and DTE
(The Magnum 700X Mini-Concentrator is a physical layer standard Ethernet
product, and operates independently of all software.)
Operating Environment
Ambient Temperature: 32ºF to 122ºF (0ºC to 50ºC)
Storage Temperature: -20ºC to 60ºC
Ambient Relative Humidity: 10% to 95% (non-condensing)
Power Supply (Internal)
AC Power Connector: IEC-type, male recessed, rear of chassis
Input Voltage: 90 to 260 vac (auto-ranging)
Input Frequency: 47 to 63 Hz (auto-ranging)
Power Consumption: 40 watts max

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(1.1 Technical Specifications, continued)
Connectors
Seven Magnum PM ports on the front. BPMs are available with BNC, AUI,
FST, and STP connectors. The following are available as RPM configurations.
RJ-45: Shielded, 8-Pin Female (Note: Shielded 10BASE-T
connectors accept either unshielded or shielded wiring
plugs for standard twisted pair media wiring.)
Fiber Optic: ST (Twist-Lock Connector, for single or multi-mode)
Fiber Optic: SMA (screw-on Connector, for multi-mode, by special order only)
ThinNet: BNC
AUI: D-Sub 15-Pin Female (with slide lock)
DTE: D-Sub 15-Pin Male (with lock posts)
Note: Port Modules are also used with the Magnum 3000X, and as the Bonus Port modules for
Magnum Stackable and Workgroup Hubs. All Port Modules should be installed at the factory
or by trained technicians.
Packaging
Enclosure: High strength sheet metal.
Suitable for wiring closet shelf, wall or desktop mounting.
Port Module Slots: 7
Dimensions: 6.0 in x 10.0 in. x 3.5 in. (15.25 cm x 25.4 cm x 8.89 cm)
Weight: 2.5 lb. (1.1 Kg)
Port Slot Cut-out: 2.2 in. x .75 in. (5.6 cm x 1.9 cm)
Cooling method: Convection
LED Indicators on Chassis
Four chassis LEDs monitor the general status of the unit including
network traffic.
PWR - Power, Green LED, steady ON indicates there is AC power.
RX - Receive, Green LED, blinks to indicate network activity, data
being received from any of the PMs.
JAB - Jabber, Amber LED, illuminates when jabber condition (illegal
packet size) is detected on any port; affected port is partitioned
temporarily until jabber stops.
COL - Collision, Yellow LED, flashes when a collision is detected
on any of the PMs.
For the LEDs on each PM, see "Product Description" of the PMs.
Agency Approvals
UL Listed (UL 1950), cUL, CE
Emissions: meets FCC Part 15, Class A
Warranty
Three years, return to factory Made in USA

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1.2 Specifications - Repeater Port Modules (RPMs)
RPM Type : BNC AUI DTE Fiber-mm Fiber-sgl.m TP*
Front Access yes yes yes yes yes yes
Connector Type BNC-f DB-15 f DB-15 m ST or SC Fiber-ST RJ-45
Partition (PART)LED yes yes yes yes yes yes
Receive (RX) LED yes yes yes yes yes yes
LINK LED n.a. n.a. n.a. yes yes yes
Switch on Face Plate yes** n.a. n.a. n.a. n.a. yes***
“Fiber-mm” is multi-mode cable, normally used for 10BASE-FL installations, up to 2.0Km.
“Fiber-sgl.m” is single-mode cable, used for distant installations, up to 10.0Km.
* The RJ-45 connector is shielded; it accepts RJ-45 eight-pin plugs for unshielded
and shielded twisted pair wiring.
** Internal termination switch for BNC, no "T" connector is required.
*** MDI-X (Media Dependent Interface - Crossover) switch for RJ-45 up-link,
no crossover cable is required.
1.3 Specifications - Bridge Port Modules (BPMs)
BPM Type : BNC AUI Fiber TP*
Connector Type BNC(f) DB-15(f) ST RJ-45
Switch on FP yes** n.a. n.a. yes***
FWD-I LED yes yes yes yes
FWD-X LED yes yes yes yes
LINK LED n.a. n.a. yes yes
* The RJ-45 connector is shielded; it accepts RJ-45 eight-pin plugs for unshielded
and shielded twisted pair wiring.
** Internal termination switch for BNC, no "T" connector is required.
*** MDI-X (Media Dependent Interface - Crossover) switch for RJ-45 up-link,
no crossover cable is required.
NOTE: As of May, 1998, multiple BPMs (up to six) may be installed
in a 700X chassis to provide parallel bridging for the BPM’s attached
segments. This will increase network performance in applications
where there is significant local traffic on the bridged segments. (see
Section 4.2) Any mix of RPM and BPM types may be configured
together in a 700X, with a maximum of 6 BPMs and 7 total PMs per
unit..

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1.4 Ordering Information
Magnum 700X Mini-Concentrator
Magnum 700X Base chassis with 7 slots for RPMs and BPMs, power supply
Magnum 700X-Br Multi-Bridge chassis with one RJ-45 RPM for the common port, and 6
slots for BPMs and other RPMs, power supply. Includes 5 face plates.
Magnum RPM-BNC Repeater Module with 1 BNC connector, internal termination switch
Magnum RPM-TP Repeater Module w/ 1 shielded female RJ-45 connector + up-link
switch
Magnum RPM-AUI Repeater Module with 1 AUI (DB-15 female) connector, with slide
lock
Magnum RPM-DTE Repeater Module with 1 DTE (DB-15 male) connector, with lock
posts
Magnum RPM-FST Repeater Module w/ mm* Fiber ST “twist” 10BASE-FL dual
connector
Magnum RPM-SMF Repeater Module w/ single mode Fiber connector
Magnum RPM-FSM** Repeater Module w/ mm* Fiber SMA “screw-on” 10BASE-FL
connector
Magnum BPM-BNC Local Bridge Module with 1 BNC connector
Magnum BPM-AUI Local Bridge Module with 1 AUI connector
Magnum BPM-FST Local Bridge Module with mm* Fiber ST connector
Magnum BPM-TP Local Bridge Module with 1 RJ-45 connector + up-link switch
Magnum PM-FP Face Plate - cover for unused slots
NOTE: All RPMs and BPMs have LEDs for status information. Refer to Product Description for
details.
* mm = multi-mode
** This item is available by special order only.
Note: All PMs are interchangeable for use with the Magnum 3000X Stackable
Concentrators and Magnum 3000 Stackable Hubs bonus ports, and the Magnum 1000
Workgroup Hubs bonus ports. The same PMs are also used in the Magnum 30X
Workgroup Bridges and the Magnum 200X and 20X Two-port Repeaters.
Garrett Communications reserves the right to change specifications, performance
characteristics and/or model offerings without notice.

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2.0 INTRODUCTION
This chapter describes the functionality of the Magnum 700X and its Port Modules.
2.1 Inspecting the Package and Product
Examine the shipping container for obvious damage prior to installing this product;
notify the carrier of any damage which you believe occurred during shipment or delivery.
Inspect the contents of this package for any signs of damage and ensure that the items listed
below are included.
This package should contain:
1 Magnum 700X Mini-Concentrator Unit
1 AC Power Cord (U.S. and other 115 vac only)
1 Installation and User Guide
1 Product Registration Card
Note: PMs that are purchased with the 700X unit are usually factory
configured and installed, and may be included as part of the 700X unit.
Remove the Magnum 700X Mini-Concentrator from the shipping container. Be sure to
keep the shipping container should you need to ship the unit at a later date. To validate the
product warranty please complete and return the enclosed Product Registration Card to Garrett
Communications as soon as possible.
In the event there are items missing or damaged contact your supplier. If you need to
return the unit use the original shipping container. Refer to Chapter 5, Troubleshooting, for
specific return procedures.
2.2 Product Description
The 700X Mini-Concentrator is a highly versatile, cost-effective mixed-media Ethernet
concentrator that provides seven (7) slots for Ethernet media connectivity. Any combination of
standard Ethernet media segments are supported. It operates as the central concentrator for
multiple backbone or user segments in mixed-media environments of small and medium-sized
networks.

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Each Magnum 700X unit is a complete operational unit with an internal power supply
enclosed in a lightweight, compact, rugged metal enclosure. The media connectors and the status
LEDs are conveniently accessed from the front. The unit is easily installed and is suitable for
wiring closet shelf, table-top or vertical mounting.
Magnum 700X units operate as multi-port repeaters and provide full repeater
functionality per IEEE 802.3 specifications in compliance with Ethernet V1.0/2.0 standards.
They may also be optionally configured with one or more Bridge Port Modules (BPMs) in order
to isolate the 700X and its attached nodes from the up-stream connected segments for increased
network performance.
2.2.1 Magnum 700X Chassis
The Magnum 700X functions as a seven (7) slot master chassis. Each slot supports a
single Port Module (RPM or BPM) to provide 10BASE-FL, FOIRL, 10BASE2, 10BASE5, or
10BASE-T LAN connectivity. The RPMs are used for one Ethernet segment each and provide
full IEEE 802.3 repeater functionality. The individual BPMs are self-learning and filter and
forward packets at full Ethernet wire speed. A BPM can be used to provide local bridge isolation
between the 700X and the connected segment. Each PMs is equipped with one media interface
connector. Any PM can be installed in any slot of the Magnum 700X chassis.
To simplify media
connections, each media interface
connector is accessible from the
front of the unit, along with the
LEDs. No rear access is required
except for the AC power plug. Figure 2.2.1: Magnum 700X Mini-Concentrator
When configured with multiple RPMs for single- or mixed-media applications, the
total combination of all RPMs will operate as a single repeater. As an example, when the
Magnum 700X is fully configured with seven RPMs connecting seven Ethernet segments, the
entire unit operates as a single repeater. In addition to the typical standard Ethernet interfaces,
RPMs with a DTE connector and RPMs with single-mode fiber connector are also available.
When configured with BPMs, all RPMs and their locally attached nodes will operate as
a single repeater which is isolated from the up-stream segments connected via the local bridge.
The BPMs are self-learning and filter / forward packets for their attached segment.
eu
Magnum 700X
Mini-Concentrator
GARRETT

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The internal power supply is auto-ranging to handle any AC power type worldwide.
Power input may range from 90 to 260 vac, with a frequency rating of 47 to 63 Hz. The unit is
equipped with a rear mounted IEC-type recessed male AC power connector. (When shipped for
use in areas other than 115 vac, a power cord will not be included). The 700X unit is convection
cooled for silent operation.
2.3 Magnum 700X - Repeater Port Modules (RPMs)
There are a total of six different RPM cards and each is designed with its own media
cable connector type. A seventh module is used as a face plate when any front slot is not used.
The assortment of standard network connector types for RPMs includes BNC (ThinNet
or 10BASE2), AUI (10BASE5 or ThickNet, DB-15 female for most transceiver connections),
DTE (DB-15 male-AUI for direct connects), ST (Ethernet multi-mode Fiber ST), SC (Ethernet
multi-mode Fiber SC), SMF (Ethernet single-mode Fiber) and RJ-45 (10BASE-T UTP and STP).
They are shown in Figure 2.3. Each RPM is usually factory installed, or may be field installed by
trained technicians as described in Section 3.0, Installation.
Figure 2.3: Magnum RPM Cards: RPM-BNC, RPM-AUI,
RPM-DTE, RPM-FST, RPM-FSC, RPM-TP, & PM-FP
Each of the individual RPMs are described in detail in this section.
2.3.1 RPM-BNC
The Magnum RPM-BNC repeater module is equipped with a standard 10BASE2 coax
connector. This RPM performs full IEEE 802.3 repeater functionality and is used for 10BASE2
ThinNet (commonly referred to as BNC) connections.
The RPM-BNC module is designed with a special switch -selectable internal
termination function that eliminates the need for a "tee" connector and a 50 ohm terminator. To

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take advantage of internal termination, the slide switch should be in the "DOWN" (or right-side)
position. In this configuration, the 10BASE2 segment is directly attached to the BNC port where
it is internally terminated. When the switch is in the "UP" (or left-side) position, the BNC port
requires a "tee" connector (not
supplied) and a 50 ohm terminator
for proper termination. Certain
applications may require a "tee"
connector, used as a tap, to allow
the 10BASE2 coax segment to
continue on past the RPM-BNC
connection.
Magnum RPM-BNC
The RPM-BNC module includes one partition (PART) and one receive (RX) LED,
which are visible from the front. The PART LED flashes AMBER to indicate that the segment
has been automatically partitioned. As soon as normal transmission resumes, the segment will
be automatically re-established. The RX LED illuminates GREEN intermittently to indicate data
is being received.
Important Note: for the RPM-BNC Termination Switch -
DOWN (or right): Internally Terminated
UP (or left): Requires "T" Connector.
(To recall the right BNC switch position, remember "tee up" . . as in golf ! )
2.3.2 RPM-AUI
This module is equipped with a 15 pin female AUI connector and a slide-lock, and
performs full IEEE 802.3 repeater functionality. It is used to provide connectivity with a
10BASE5 (ThickNet) backbone or to
any AUI segments. A transceiver is
required when connecting to a
ThickNet segment and the RPM-AUI
supports this convention. The RPM-
AUI is also a "universal" Ethernet
media interface as it may be used with
a variety of different mini-transceivers
12
Internal Termination
Slide Switch
Standard BNC
10BASE2 Connector
Partition LED
Receive LED
1
2
Standard 15-pin
female AUI, Partition LED
Receive LED
1
2
2
1
Magnum RPM-AUI
with slide-lock

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to provide connectivity to any media type.
The RPM-AUI card is equipped with Partition (PART) and Receive (RX) LEDs which
function the same as the identical LEDs on the RPM-BNC (Section 2.3.1 above).
The Magnum RPM-AUI card is also used for connecting Ethernet devices using
standard AUI cabling. In this situation, it is important to consider the AUI segment length or
distance to the attached device.
The maximum transmission distance between a backbone transceiver equipped with an
AUI connector and the Magnum RPM-AUI card will vary. When an AUI cable is used to
connect the Magnum RPM-AUI directly to a backbone transceiver, the maximum AUI segment
length is allowed. If the Magnum RPM-AUI is connected to a transceiver that has been cascaded
from another transceiver, the maximum AUI segment length is reduced.
According to Ethernet standards, the maximum distance from the transceiver AUI
connector and the attached device (Magnum RPM-AUI) is 50m (165 ft.). The AUI segment
maximum length is reduced in cascaded configurations. See the following note.
Important Note: The maximum transmission distance is decreased by 6m (20 ft.) for
every additional level of network transceiver device "dropped" or "cascaded" from the original
backbone transceiver tap.
The RPM-AUI connector supports standard IEEE signals, summarized in Table 2.3.2.
Table 2.3.2: AUI Pin Assignments
Pin Function Pin Function
1 Control In Circuit Shield 10 Data Out Circuit B
2 Control In Circuit A 11 Data Out Circuit Shield
3 Data Out Circuit A 12 Data In Circuit B
4 Data In Circuit Shield 13 Voltage Plus (+)
5 Data In Circuit A 14 Voltage Shield
6 Voltage Common 15 Control Out Circuit B
7 Control Out Circuit A SHELL Protective Ground
8 Control Out Circuit Shield (conductive shell)
9 Control In Circuit B
NOTES: 1) Voltage Plus (pin #13) and Voltage Common (pin # 6) use a single
twisted pair in the AUI cable.
2) Pins 4, 8, 11 and 14 may be connected to pin #1.

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2.3.3 RPM-DTE
The Magnum RPM-DTE is a module equipped with a 15-pin male DTE connector
with lock posts. (The RPM-DTE is a mating connector for the RPM-AUI which has a 15-pin
female connector and slide locks. The pin
assignments of the two are the same). The
RPM-DTE card is designed to support direct
connections (no transceiver required) using
AUI drop cables to any device that is
equipped with an AUI port. Examples of
such devices include servers, routers,
bridges, hubs, and UNIX workstations. Magnum RPM-DTE
2.3.4 RPM-FST (Fiber ST, Twist-lock Connector)
The Magnum RPM-FST is a multi-mode fiber optic module equipped with a dual ST-
type connector. It functions as an IEEE 802.3 full repeater to support 10BASE-FL and FOIRL
network segments. When used for 10BASE-FL segments, this module supports fiber optic
transmission distances up to 2000m. For
FOIRL applications, it supports fiber
segments of up to 1000m in length. The
RPM-FST includes full transceiver
functionality and does not require an external
transceiver device. In addition to Partition
(PART) and Receive (RX) LEDs, a LINK
LED indicates proper connectivity with the
remote device. Magnum RPM-FST
NOTE: The RPM-FST circuit board contains a six pin jumper which controls the
intensity of the transmitted signal. By default, the jumper is placed across pins 5 & 6. The
jumper may be set as follows, to accommodate distances of up to 4 km:
(continued on next page)
1
2
Partition LED
Receive LED
1
2
Standard 15-pin
male "AUI"
1
2
3
1LINK Partition Receive
23
10BASE-FL, FOIRL
ST Connectors

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JUMPER ACROSS DISTANCES SUPPORTED
1 - 2 0 - 2 km
3 - 4 0.5 - 3 km*
5 - 6 1.5 - 4 km*
When fiber cable distances of 2 km or less are needed, the
jumper should be placed across pins 1 and 2.
* When fiber cable distances of more than 2 km are
selected, the minimum cable length must also be increased,
as shown in the table above.
2.3.5 RPM-FSC (Fiber SC, Snap-in Connector)
The Magnum RPM-FSC is also a multi-mode fiber optic repeater module, similar to
the RPM-FST. It has the same LEDs indicating port
partitioned (PART), receive activity (RX), and link
operational (LINK). It has the same jumper settings for
extra distance in certain circumstances.
While the functionality of the these two modules
is the same, the RPM-FSC is equipped with an SC-type
"snap-in" connector instead of an ST-type "twist-lock"
connector. Magnum RPM-FSC
2.3.6 RPM-SMF (Single-mode Fiber)
The Magnum RPM-SMF is a single-mode fiber optic module equipped with a dual ST-
type connector. It functions as a full repeater to support single-mode fiber networks. The RPM-
SMF supports fiber optic transmission
distances of up to 10 Km. The RPM-SMF
includes full transceiver functionality and
does not require an external transceiver
device.
This module is equipped with
PART, RX, and LINK LEDs identical to
those of the RPM-FST.
(continued on next page) Magnum RPM-SMF
2.3.6 RPM-SMF (Single-mode Fiber) - continued
1 2
3 4
5 6
J1 DEFAULT
10BASE-FL, FOIRL
SC Connectors
1
3
2
1
2
3
1LINK Partition Receive
23
Single-mode
ST Connectors

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12
Note: Be sure to use single-mode fiber optic cable with this module.
Single-mode fiber has a smaller diameter than multi-mode fiber
(2/15 - 8/60 microns for single-mode, 50/125 or 62.5/125 microns
for multi-mode, where xx/xx are the diameters of the core and the
core plus the cladding respectively).
NOTE: The RPM-SMF circuit board contains a six pin jumpers, but the jumper is
only to be placed across pins 5 & 6. (Chg. 11/98) Others are not used.
JUMPER ACROSS DISTANCES SUPPORTED
1 - 2 not used
3 - 4 not used
5 - 6 0 - 10 km
1 2
3 4
5 6
J1
DEFAULT

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2.3.7 RPM-TP (Twisted Pair)
The Magnum RPM-TP card supports Ethernet twisted pair segments of any standard
length. It is equipped with a single RJ-45 connector. The RJ-45 connector is shielded to
minimize emissions and will allow
both unshielded twisted pair (UTP)
and shielded twisted pair (STP)
segment connections.
The RPM-TP module is also
equipped with a slide switch to allow
for cascaded or up-link connections.
This feature eliminates the need for a
special twisted pair crossover cable. Magnum RPM-TP
With the switch in the UP position, the RPM-TP port is used for up-link connections
(i.e.: a connection to another repeater or hub typically.) When used for segments going to
workstations and other user device connections, the switch should be in the DOWN position.
The RPM-TP will support 10BASE-T unshielded twisted pair wiring (UTP)
environments with maximum segment distances up to 100m (325 ft.), or shielded twisted pair
wiring (STP) of 150m (500 ft.). This module is designed with internal transceiver functionality.
The RPM-FST has LINK, PART, and RX LEDs.
Important Note:For the RPM-TP MDI-X Crossover Switch -
DOWN(or Right) for workstations and user connections.
UP (or Left) for Up-Link connections to other hubs, etc.
The RJ-45 pins normally (TP crossover switch DOWN) are per the standard for hubs-to-users
twisted pair wiring: 1 = receive+, 2 = receive-, 3 = transmit+, 6 = transmit-, other pins not used.
When the TP crossover switch is UP, the pins of the RJ-45 port are per the standard for up-links
using twisted pair wiring, i.e., the transmit and the receive pairs are exchanged: 1 = transmit+, 2
= transmit-, 3 = receive+, 6 = receive-, other pins not used.
2.3.8 PM-FP
The PM-FP is a blank face plate that is installed in
any empty PM slot. When the Magnum 700X chassis contains
less than seven front-mounted PMs, the empty front slots must
be covered with the PM-FP face plate in order to maintain
proper cooling air flow, and for safety. Magnum PM-FP
Shielded RJ-45
Connector
1
2
3
1LINK Partition Receive
23
MDI-X
Cross-Over
Slide Switch
Note: The Magnum
PM-FP must be installed
in each empty PM slot.

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2.4 Bridge Port Modules (BPMs)
To provide optional local segment isolation, individual Bridge Port Modules (BPMs)
are available for Magnum 700Xs. For flexibility, any port of a Magnum 700X may be
configured with a BPM. Multiple (up to 6) BPMs may be configured in one 700X chassis..
There are four different BPM cards and each is designed with its own media connector
type. BPMs are available for the following Ethernet media types: BNC (ThinNet or 10BASE2),
AUI (10BASE5 or ThickNet, DB-15 female for most transceiver connections), ST (Ethernet
multi-mode Fiber ST), and RJ-45 (10BASE-T UTP and STP). They are shown in Figure 2.4.
Each BPM is usually factory installed, but may be field installed by trained technicians as
described in Section 3.0, Installation.
Figure 2.4: Magnum BPM Cards: BPM-TP, BPM-BNC, BPM-ST, BPM-AUI
Each of the individual BPMs are described in detail in this section.
2.4.1 BPM-BNC
The Magnum BPM-BNC bridge module is equipped with a standard 10BASE2 coax
connector. This BPM is self-learning and filters and forwards packets at full Ethernet wire
speed. This module is used for 10BASE2 ThinNet (commonly referred to as BNC) connections
and is designed to isolate the local segment (i.e., the users and devices connected to the Magnum
unit housing the BPM) from the connecting
network (i.e., the users and devices
connected through the BPM’s media
connector).
The BPM-BNC module is
designed with a special switch -selectable
internal termination function that eliminates
the need for a "tee" connector and a 50 ohm
terminator. For switch details, refer to Magnum BPM-BNC
Standard BNC
10BASE2 Connector
Internal Termination
Slide Switch
1
2
FWD-X LED
FWD-I LED
2
1

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the RPM-BNC section, 2.3.1. The BPM-BNC module includes an FWD-I LED and an FWD-X
LED, which are visible from the front. The FWD-I LED blinks GREEN to indicate that packets
are being forwarded INTO the local Magnum hub or stack.. The FWD-X LED blinks GREEN to
indicate that packets are being forwarded OUT of the local Magnum hub or stack.
2.4.2 BPM-AUI
This local-bridge module is equipped with a 15 pin female AUI connector and a slide-
lock. It is self-learning and filters and forwards packets at full Ethernet wire speed. It is used to
provide segment isolation from a 10BASE5
(ThickNet) backbone or any AUI segments. A
transceiver is required when connecting to a
ThickNet segment and the BPM-AUI supports
this convention.
The BPM-AUI card is equipped with
one FWD-I LED and one FWD-X LED, which
are identical to those of the BPM-BNC Magnum BPM-AUI
(see Section 2.4.1).
The RPM-AUI connector supports standard IEEE signals, which are summarized in
Table 2.3.2 of Section 2.3.2.
2.4.3 BPM-FST
The Magnum BPM-FST is a multi-
mode fiber optic local-bridge module equipped
with a dual ST-type connector. It is self-learning
and filters and forwards packets at full Ethernet
wire speed. When used for 10BASE-FL
segments, this module supports fiber optic
transmission distances up to 2000m. For FOIRL, Magnum BPM-FST
it supports fiber segments of up to 1000m in length. The BPM-FST includes full transceiver
functionality and does not require an external transceiver device. The BPM-FST has three status
LEDs. FWD-I and FWD-X are identical to those of the BPM-BNC (Section 2.4.1). In addition,
this module has a GREEN LINK LED, that is always on when the link is operational.
FWD-X LED
FWD-I LED
2
1
Standard 15-pin
female AUI
with slide-lock
12
10BASE-FL, FOIRL
ST Connectors
FWD-X LED
FWD-I LED
LINK LED
2
1
3
3
21