GarrettCom Quad User Manual

Magnum Quad-Series

Fiber Switches

Installation and User Guide

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)



Magnum

Quad-Series

Fiber Switches

Installation and User Guide

Part #: 84-00063 (Rev. D 12/02)

Trademarks
Ethernet is a trademark of Xerox Corporation
NEBS is a trademark of Telcordia Technologies
UL is a registered trademark of Underwriters Laboratories
GarrettCom, Magnum and Personal Switch are trademarks and Personal Hub is a

registered trademark of GarrettCom, Inc.

Important: The Magnum Quad Series Fiber Switch contains no user
serviceable parts. Attempted service by unauthorized personnel shall render all
warranties null and void. If problems are experienced with Magnum Quad
Series Fiber Switch products, consult Section 6, Troubleshooting, of this User
Guide.

Copyright  2003 GarrettCom, Inc. All rights reserved. No part
of this publication may be reproduced without prior written permission from
GarrettCom, Inc.

Printed in the United States of America.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Contacting GarrettCom, Inc

Please use the mailing address, phone and fax numbers and email address listed below:

GarrettCom, Inc.

47823 Westinghouse Dr.

Fremont, CA 94539

Phone [phone]

Fax [phone]

Website: http://www.GarrettCom.com

email [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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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

TABLE OF CONTENTS Page

1.0 SPECIFICATIONS ............................................................................... 1

1.1 Technical Specifications...................................................................... 1

1.2 Ordering Information........................................................................... 3

2.0 INTRODUCTION ................................................................................. 4

2.1 Inspecting the Package and Product .................................................... 4

2.2 Product Description - Magnum Quad-Series Fiber Switches.............. 5

2.2.1 Magnum Quad-Series chassis models.......................................... 5

2.2.2 Quad-port modules, 100Mb fiber ......................................................7

2.2.3 Quad-port modules, 10 Mb

fiber.................................................. 7

2.2.4 Quad-Port Module, RJ-45 (copper)............................................. 8

2.2.5 Combo “3 + 1” Quad Port Modules, 3@RJ-45 and 1@fiber....... 8

2.2.6 Frame Buffering and Latency...................................................... 9

2.3 Features and Benefits......................................................................... 11

2.4 Applications....................................................................................... 12

3.0 INSTALLATION................................................................................15

3.1 Locating Magnum Quad-Series Switches.......................................... 15

3.2 Connecting Ethernet Media ...............................................................16

3.2.1 Connecting Fiber Optic ST-type

3.2.2 Connecting Fiber Optic SC-type

3.2.3 Connecting Single-Mode

Fiber Optic........................................ 17

, “twist-lock”.......................... 16

, "Snap-In".............................. 17

3.2.4 Connect Twist Pair (RJ-45,CAT3, CAT5, Unsh or Shiel)......... 17

3.3 Table-Top or Shelf Mounting............................................................ 18

3.3.1 Wall (or Vertical Surface) Mounting, 8-port QS580................. 18

3.3.2 Rack-mounting, models QS5108 and QS5116........................... 18

3.4 RJ-45 ports, int jump set for 10/100Mb............................................. 20

3.5 Fiber 100Mb ports, int jump set for 100Mb fixed............................. 21

3.6 Combo(3+1) ports, int jump set for 10/100 RJ-45 Auto-Neg............ 22

3.7 Fiber 10Mb ports, int jump set for 10Mb fixed Half- or.................... 23

3.8 Powering the Magnum Quad-Series Switch...................................... 24

3.9 Quad Port Module (QPM) Installation............................................... 25

3.9.1 Preparation for Installing and Removing QPMs........................ 25

3.9.2 Installing QPM Cards in the Magnum Q-Series........................ 27

3.9.3 Removing QPM Cards............................................................... 29

4.0 OPERATION....................................................................................... 30

4.1 Switching Functionality..................................................................... 30

4.2 Status LEDs ....................................................................................... 31

4.3 Manual Switches for Up-link push-button, for RJ-45 quad-port....... 31

4.4 Auto-negotiation, for Fast Ethernet copper ports............................... 31

4.5 Auto-negotiation for 10 Mb ports, half- or full-duplex mode............ 33

4.6 Flow-control, IEEE 802.3x standard ................................................. 33

4.7 Power Budget Calculations for Quad-Series QPM’s with Fiber ....... 34

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

5.0 INTRODUCTION - MAGNUM QUAD-SERIES (QPM)............... 35

5.1 Inspecting the Package and Product .................................................. 35

5.2 Product Description ........................................................................... 35

5.2.1 QPM-MST, 100Mb multi-mode FX-ST Quad-port Mod .......... 36

5.2.2 QPM-MSC 100Mbps multi-mode FX-SC Quad-port, “snap-in”37

5.2.3 QPM-SSC 100Mbps single-mode

5.2.4 QPM-MTRJ, 100Mb multi-mode FX Quad-Port, MTRJ small-

5.2.5 QPM-MV45, 100Mbps multi-mode FX Quad-Port VF45 small-

FX-SC-type, “snap-in” con. 37

38

38

5.2.6 QPM-RJ45 (Twisted Pair), 10/100Mb TP Quad-Port................39

5.2.7 QPRJ-MSC, “3 + 1” 3@10/100Mb RJ-45 and 1@100Mb Fib.. 40

5.2.8 QPRJ-MST, “3 + 1” 3@10/100Mb RJ-45 and 1@100Mb Fib.. 41

5.2.9 QPRJ-SSC, “3 + 1” 3@10/100Mb RJ-45 and 1@100Mb Fib... 41

5.2.10 QPM-FP..................................................................................... 41

6.0 TROUBLESHOOTING...................................................................... 42

6.1 Before Calling for Assistance............................................................ 42

6.2 When Calling for Assistance ............................................................. 43

6.3 Return Material Authorization (RMA) Procedure............................. 43

6.4 Shipping and Packaging Information................................................. 44

APPENDIX A: WARRANTY INFORMATION

......................................... 44

APPENDIX B: MAGNUM INTERNAL DC POWER SUPPLY OPTION44
APPENDIX C

: MAGNUM INTERNAL DC DUAL-SOURCE POWER.. 47

Revisions

Rev D 12/02 : Updated Appendices B and C for 100VDC (90 to 160v range) option
Rev C 06/02 : Updated the Rack Mounting and Appendix B & C with 24VDC and

125VDC Power Supply option

Rev B 04/01 : Change the company name to GarrettCom, Inc. (Formerly it was
Garrett Communications). There are no changes to the content of the material at
this time
Rev A 08/99 : This revision is the initial release of the

Switch

user manual.

Magnum Quad Series Fiber

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

The Magnum Line

ETHERNET CONNECTIVITY PRODUCTS

"DESIGNED AND MANUFACTURED IN THE USA"

OVERVIEW

GarrettCom, Inc.offers the premium-quality Magnum line of Ethernet LAN
connectivity products with industry-standard functionality and built-in fiber
configurability. Magnum products are designed for use in demanding Carrier Class,
Industrial Grade and OEM applications where reliability is a primary consideration.

6K25 Managed Fiber Switches, Gigabit, 100 and 10 Mbps, fiber and copper ports,
mix-and match. Features SFF fiber for up to 25 fiber ports in a 1U unit.
4K-Series Switches, 100 and 10 Mbps, copper ports with optional fiber port, with
auto-negotiating full switching performance.
Quad-Series Fiber Switches, 100 & 10Mbps, fiber and copper ports, mixed-speed
and mixed-media types, full switching performance.
P62-Series “Outdoor Ethernet Switches, for temperature uncontrolled applications

6 10/100 and 2 100Mb fiber ports, managed and unmanaged models, all fiber types.

Mixed-Media Fiber Hub, 16-port Stackable,10/100 auto-sensing
Dual Speed 8-port and 16-port Stackables, 10/100 auto-sensing
Stackable Hubs, SNMP Optional

10Mb series and 100Mb series, both w/ optional port modules
Personal Switches, 10/100Mb

8 port dual speed, Auto-negotiable with fiber option
Personal Hubs, 100Mb or 10/100Mb

8-port, with two switched ports (1 fiber built in)
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, regular and Hardened with integral
DC power, all fiber media port types inc l. fiber ST, SC, mm., single-mode, SFF

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
Transceivers, 10Mb series Mini-Transceivers and Coax Models

June, 03

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

1.0 SPECIFICATIONS

1.1 Technical Specifications

Performance

Aggregate Filtering Rate: 2,380,800 frames/sec for 16 100Mbps ports
(for Magnum QS5116)
(all ports are wire speed) 1,190,400 frames/sec for 8 100Mbps ports
(for Magnum QS580 & QS5108)
Aggregate Forwarding Rate: (for Magnum QS Fast Ethernet ports)
(all ports are wire speed) 1,190,400 frames per second, 16-port units
595,200 frames per second, 8-port units
Data Rate: 10 Mbps and 100Mbps

Address Table Capacity: 24K node addresses, self-learning (12K on

8-port models), with address aging
Packet buffer size : 8 MB dynamic (4MB for 8-port)
Latency: 5 s + packet time (100 to 100Mbps)
15 s + packet time (10 to 10 Mbps, and 10 to 100Mbps)
Network Standards
Ethernet V1.0/V2.0 IEEE 802.3: 10BASE-T,
IEEE 802.3u: 100BASE-TX, 100BASE-FX

Maximum 10 Mbps Ethernet Segment Lengths
Unshielded twisted pair - 100 m (328 ft)
Shielded twisted pair - 150 m (492 ft)
10BASE-FL multi-mode fiber optic - 2 km (6,562 ft)
10BASE-FL single-mode fiber optic - 10 km (32,810 ft)

Maximum Standard Fast Ethernet Segment Lengths:
10BASE-T (CAT 3, 4, 5 UTP) - 100 m (328 ft)

100BASE-TX (CAT 5 UTP) - 100 m (328 ft)
Shielded twisted pair - 150 m (492 ft)

100BASE-FX, half-duplex, multi-mode - 412 m (1350 ft)
100BASE-FX, full-duplex, multi-mode - 2.0 km (6,562 ft)
100BASE-SX, short wavelength HDX m.m. - 300 m ( 935 ft)

100BASE-FX, half-duplex, single-mode - 412 m (1350 ft)

100BASE-FX, full-duplex, single-mode - 15.0 km (49,215 ft)

Connectors for copper wiring
Twisted Pair at 10/100Mb: RJ-45 shielded, female, front mounted
(for Magnum Quad-Series Fast Ethernet copper ports, use Cat 5 cable)

Fiber Multi-mode connector types:

Fiber Port, SC-type (snap-in): Fiber optic multi-mode, 100BASE-FX

Fiber Port, ST-type (twist-lock): Fiber optic multi-mode, 100BASE-FX

Fiber Port, MTRJ-type (plug-in): Fiber optic multi-mode, 100BASE-FX

Fiber Port, VF-45 type (plug-in): Fiber optic multi-mode, 100BASE-FX

Fiber Port, ST-type (twist-lock): Fiber optic multi-mode, 10ASE-FL

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Fiber Single-mode connector types:

Fiber Port, SC-type: Fiber optic single-mode, 100BASE-FX
Manual switch-selections and jumpers

Up-link Push-button: Crossover sw for one RJ-45 port per QPM-RJ45
Fiber default: Full-duplex (Internal jumpers may select HDX mode)
Copper default: Auto-negotiation (Internal jumpers may alternatively
select fixed 100Mb full-duplex, or fixed 100Mbps half-duplex)
LEDs: Per Port
LK: Steady ON when media link is operational
ACT: ON with receiver port activity
FDX/HDX: ON = Full-Duplex Mode
OFF = Half-Duplex Mode
100/10: ON = 100Mbps speed
OFF = 10 Mbps

Operating Environment

Ambient Temperature: 32 to 120 F (0 to 50C)
Storage Temperature: -40to 185F (-40to 85C)
Ambient Relative Humidity: 10% to 95% (non-condensing)

Packaging

Enclosure: Rugged High strength metal. Suitable for stand-alone or rack­ mounting
Dimensions: 1.75 in H x 17.0 in W x 9.13 in D (10.0 in W for QS580)

4.45cm H x 43.2cm W x 23.2cm D (25.4 cm W for QS580)
Weight: 4.0 lb. (1.8 Kg) for rack-mount models, 2.5 lb. for table-top
Cooling method: Fan cooled, @ 9 cfm
Power Supply (Internal)

Input Voltage: 110 to 240 VAC (auto-ranging)
Input Frequency: 47 to 63 Hz (auto-ranging)
Power Consumption: 20 watts typical (8 port model)
35 watts typical (16 port model)

DC Power Supply (Options)

AC Power Connector: IEC-type, male recessed at rear of chassis,

with adjacent manual ON-OFF switch (on AC models only)

Redundant power supplies available as options

-48VDC Power Input Voltage : 36 to 70 VDC

24VDC Power Input Voltage : 20 to 36VDC

125VDC Power Input Voltage : 120 to 160VDC

Std. Terminal Block : “ -, GND, + ”

Power Consumption: same as for AC models, see above

For Dual Source and Redundant DC for –48VDC, 24VDC Power &

125VDC supply options (Optional), see Appendices

For optional 23” Telco rack-mount brackets, order Model # RMB-23W

Agency Approvals

UL listed (UL1950), cUL, CE

Emissions meet FCC Part 15 Class A
Warranty Three years, return to factory Made in USA

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

1.2 Ordering Information

Magnum Quad-Series Fiber Switches

MODEL DESCRIPTION

Magnum QS580 8-port 10/100 Switch, holds up to 2 Quad-port Modules

with 4 switched ports each. Shelf or table-top mounting.
For mixed-media flexibility, combinations of RJ-45 and
various fiber port connector types, modes, and speeds can
be configured. Full speed filtering and forwarding at
100Mbps speed across all ports, self-learning 12K-node
address table, and large 4MB packet buffers. Front­mounted LEDs, internal auto-ranging power supply

Magnum QS5108 Same as Model QS580 Switch, but in a 19” rack-mount

package, with mounting brackets.

Magnum QS5116 Same as Model QS5108, but with 24K-node address table

and 8MB packet buffers. Holds up to 4 Quad-port Modules
(QPMs), 19” rack-mount package, with mounting brackets.

Magnum Quad-Series Port Modules
QPM-MSC Fiber module for Quad-Series Switches, with four

100Mbps multi-mode FX SC connectors

QPM-MST Fiber module for Quad-Series Switches, with four

100Mbps multi-mode FX ST connectors

QPM-SSC Fiber module for Quad-Series Switches, with four

100Mbps single-mode FX SC connectors

QPM-MV45 Fiber module for Quad-Series Switches, with four

100Mbps multi-mode FX “VF-45” connectors

QPM-MTRJ Fiber module for Quad-Series Switches, with four

100Mbps multi-mode FX “MTRJ” connectors

QPM-RJ45 RJ-45 module for Quad-Series Switches, with four

100Mbps auto-negotiating RJ-45 ports, one of which has
an up-link push-button

QPRJ-MSC 3TP+1F “3+1 combo” module for Quad-Series Switches,

with three 10/100MB auto-negotiating RJ-45 ports and one
fiber port with 100Mbps multi-mode FX SC connector

QPRJ-MST 3TP+1F “3+1 combo” module, same as QPRJ-MSC but

with fiber ST-type connector

QPRJ-SSC 3TP+1F “3+1 combo” module, same as QPRJ-MSC but

with fiber single-mode FX SC connector

QPM10-FST Fiber module for Quad-Series Switches, with four 10 Mbps

multi-mode FL ST-type connectors

GarrettCom, Incl. reserves the right to change specifications, performance
characteristics and/or model offerings without notice.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

2.0 INTRODUCTION

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 that 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 QS580, QS5108 or QS5116 Fiber Switches
1 AC Power Cord (U.S. and other 115 VAC only)
1 Set of two wall-mounting brackets (for QS580 Model only)
1 Set of metal “Ears” for optional “19” rack mounting (for QS5108 &

QS5116 only)

1 Installation and User Guide (this manual)
1 Product Registration Card
Remove the items from the shipping container. Be sure to keep the shipping

container should you need to re-ship the unit at a later date. To validate the product
warranty, please complete and return the enclosed Product Registration Card to
GarrettCom, Inc. as soon as possible.

In the event there are items missing or damaged, contact the party from whom
you purchased the product. If the unit needs to be returned, please use the original
shipping container if possible. Refer to Section 6, Troubleshooting, for specific return
procedures.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

2.2 Product Description - Magnum Quad-Series Fiber Switches

Magnum Quad-Series Fiber Switches boost the performance of large Ethernet
LANs, and have the flexibility of both fiber and twisted-pair switched ports. Their
“mixed-media” capability provides for a variety of configurations including various
types of fiber port connectors and modes, as well as allowing a mix of 10/100Mb RJ-45
(copper) ports in the same unit. This flexibility is achieved via a family of quad-port
modules that can be integrated with a base unit, in the factory and in the field, to adapt
the unit to the individual application’s changing mixed-media requirements for a 10/100
Switch product.

The Magnum Quad-Series provide the switching speed and the reliability to
smoothly support multiple workgroups at 100Mbps or 10 Mbps speed. The Quad-Series
offers the flexibility of four, eight, twelve or sixteen switched 100Mbps or 10 Mbps fiber
and/or 10/100 twisted pair ports, in all the popular connector types. The Magnum Quad­Series offers the QS580, QS5108 and QS5116 models, each with a configuration of four
port modules (Quad-port Modules) for fiber types and for copper, as well as “3+1”
combo (3@RJ-45 and 1@fiber) port modules. The Quad-port Modules can be configured
into a Quad-Series Switch base unit in any mix of port connector or media types.

Designed for use in departments with multiple workgroups, in remote offices
and in network traffic centers, the Magnum Quad-Series Switches are easy to install and
use. Addresses of attached nodes are automatically learned and maintained, adapting the
switching services to network changes and expansions. Front-mounted LEDs provide
status information on each port. The Magnum Quad-Series Switches provide high
performance plug-and-play operation in convenient table-top and rack-mount packages.

2.2.1 Magnum Quad-Series chassis models

Magnum Quad-Series Switches come in three chassis sizes, an 8-port table-top,

an 8-port rack-mount, and a 16-port rack-mount. Each is configurable with a selection of
quad-port (i.e., 4-port) modules, providing the capability of 4, 8, 12, and 16 switched
ports. The quad-port modules are normally factory installed, but may be changed or
added in the field. (See Section 5)

The 8-port QS580 table-top chassis is compact in size and suitable for shelf­mounted use in network wiring centers. The QS5108 and QS5116 are 19” rack-

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

mountable Switches with two or four quad-port slots in the front, i.e., with a capacity of
8 or 16 switched ports. The QS5108 and QS5116 rack-mount units are typically used in
larger network wiring centers.

Figure 2.2.1a: Front view, 8-

Magnum QS580 PWR

Fiber Switches

GARRETT

Magnum QS5108

Fiber Switch

Fiber Switch

GARRETT

FDX/HDX

1 2 3 4

LK

Fiber Switch

1
2
3
4

8 Ports Table-Top

PWR

FDX/HDX

1 2 3 4

LK

1
2
3
4

ACT

1 2 3 4

LK

ACT

x

100/10

FDX/HDX

1 2 3 4

ACT

LK

FDX/HDX

100/10

8-Port Rack Mount

ACT

FDX/HDX

ACT

FDX/HDX

port Magnum QS580 table­top, 8-port QS5108 and 16­port QS5116 Mixed-Media
Switches

Magnum QS5116

Magnum QS5116

Magnum QS5116

Fiber Switch

Fiber Switch

GARRETT

GARRETT

PWR

FDX/HDX

1
2
3
4

1 2 3 4

LK

ACT

1 2 3 4

LK

x

100/10

FDX/HDX

FDX/HDX

1 2 3 4

ACT

LK

1
2
3
4

ACT

FDX/HDX

1 2 3 4

LK

1
2
3
4

ACT

16-Port Rack Mount

. Mixed-media combination modules (4-port modules with three fiber ports and
one twisted-pair port) are supported in all of the Quad-Series Fiber Switch models. All
quad-module manual-selection switches and LED’s are located on the front panel, with
the IEC standard AC power connector (and a manual ON - OFF power switch) located at
the rear. Fan-driven cooling air flows left to right.

110-220

VAC

47-63Hz

1.0-0.5A

ON

OFF

110-220

47-63Hz

1.0-0.5A

ON

VAC

OFF

Figure 2.2.1b: Rear view - Magnum table-top & rack-mount Quad-Series Switches

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

2.2.2 Quad-port modules, 100Mb fiber

FDX/HDX

1
2

3

4

1 2 3 4

LK

ACT

ST-Type

FDX/HDX

1
2
3

4

1 2 3 4

LK

ACT

SC-Type

Fig.2.2.2 Fiber Quad-Port Modules, QPM ST, QPM-SC, QPM-MTRJ, QPM-MV45

In a fiber quad-port module, all of the fiber ports are of the same speed, the
same multi- or single-mode, and the same connector type. Multi-mode 100Mbps models
are available with ST, SC, MTRJ, and VF-45 connectors. Single-mode 100Mbps models
are available with SC connectors.

The 100Mb fiber quad-port modules on the Magnum Q-Series normally are set
(factory default) to operate in full-duplex mode for best fiber distance and performance.
On the Magnum Q-Series, the user may select full- or half-duplex mode per-port with an
internal jumper setting (See Section 3.4) for the flexibility to adapt to any type of Fast
Ethernet devices.

FDX/HDX

1 2 3 4

1

LK

2
3
4

VF45-Small Form Factor

FDX/HDX

1 2 3 4

LK

1
2

3
4

MTRJ-Small Form Factor

ACT

ACT

On Magnum fiber QPMs, there are three LED’s per fiber port. The Link (LK)
LED indicates “ready for operation” when lit, another LED indicates operation in full­duplex mode when ON (when it is OFF, operation is half-duplex), and an LED indicates
Receiving Activity (ACT) on the port. A fiber cable must be connected to each 100Mb
port and a proper link (LK lit) must be made with the device at the other end of the cable
in order for the LK LEDs to provide valid indications of operating conditions.

2.2.3 Quad-port modules, 10 Mb

fiber

The 10 Mb model QPM10-MST

fiber quad-port module is the same as the

FDX/HDX

1
2

3

4

1 2 3 4

LK

ST-Type

ACT

100Mb QPM-MST, except for 10 Mb speed

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

rather than 100Mb speed. It supports distances according to the 10Base-FL standard, i.e.,
2Km distance for multi-mode fiber. (Single-mode for 10km distance may be available as
a special order).

2.2.4 Quad-Port Module, RJ-45 (copper)

The Magnum Q-Series
copper port module, model QPM­RJ45, provides four 10/100Mb
switched. RJ-45 ports. The 10/100Mb
switched ports are independently N­way auto-negotiating. QPM-RJ45

for operation at 10 or 100Mb speed in full- or half-duplex mode (as a default setting).
They independently move to half-duplex mode at 10 Mb or at 100Mb speed if the device
at the other end of the twisted pair cable is half-duplex or is not an auto-negotiating
device.

On the model QPM-RJ45 , there are four LED’s for each port. The LK (Link)
indicates “ready for operation” when lit. The ACT (Activity) indicates receiving activity
on that port when lit. The 10/100 LED indicates operation at 100Mb speed when ON and
at 10 Mb speed when OFF (when auto-negotiation is not disabled ). The FDX/HDX LED
is ON to indicate full-duplex operation and OFF to indicate half-duplex mode. A twisted
pair cable must be connected into each RJ-45 10/100Mb port and a proper Link (LK lit)
must be made with the device at the other end of the cable in order for the LEDs to
provide valid indications of operating conditions.

1 2 3 4

LK

x

100/10

ACT

FDX/HDX

Internal jumper settings (See Section 3.4) allow technicians to over-ride the
auto-negotiation feature and to manually set each port at full-duplex or half-duplex. One
port on each RJ-45 quad-port module is equipped with a Media Dependent Interface­Crossover (MDI-X) push-button switch to simplify cascaded or up-link connections.

2.2.5 Combo “3 + 1” Quad Port Modules, 3@RJ-45 and 1@fiber

The combo quad-port modules are
combination of copper and fiber media,
available as three 10/100 switched RJ-45

LK

1 2 3 4

FDX/HDX

100/10

copper ports and one 100Mb switched multi­mode fiber ST or SC or single mode SC-type port. QPRJ-MSC

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

The RJ-45 ports run at 10/100Mbps with N-way auto-negotiation capability,
whereas the fiber port runs at 100Mbps with half- or full-duplex capability manually
selected. The default condition is full-duplex. Internal jumper settings allow technicians
to set the 100Mb fiber port to half-duplex mode. (See Section 3.4).

On Magnum Combo Quad-port modules, there are four LED’s for each RJ-45
port, which indicate status as described for the QPM-RJ45 in Section 2.2.4 above. The
fiber port is fixed at 100Mbps speed at all times, and has LEDs that indicate status the
same way as described for the Fiber Quad-port modules in Section 2.2.2 above.

2.2.6 Frame Buffering and Latency

The Magnum Quad-Series are store-and-forward switches. Each frame (or

packet) is loaded into the Switch’s memory and inspected before forwarding can occur.
This technique ensures that all forwarded frames are of a valid length and have the
correct CRC, i.e., are good packets. This eliminates the propagation of bad packets,
enabling all of the available bandwidth to be used for valid information.

While other switching technologies such as "cut-through" or "express" impose
minimal frame latency, they will also permit bad frames to propagate out to the Ethernet
segments connected. The "cut-through" technique permits collision fragment frames,
which are a result of late collisions, to be forwarded to add to the network traffic. Since
there is no way to filter frames with a bad CRC (the entire frame must be present in order
for CRC to be calculated), the result of indiscriminate cut-through forwarding is greater
traffic congestion, especially at peak activity. Since collisions and bad packets are more
likely when traffic is heavy, the result of store-and-forward operation is that more
bandwidth is available for good packets when the traffic load is greatest.

To minimize the possibility of dropping frames on congested ports, each
Magnum Quad-Series QS5116 Switches dynamically allocates buffer space from an 8
MB memory pool, ensuring that heavily used ports receive very large buffer space for
packet storage. (Many other switches have their packet buffer storage space divided
evenly across all ports, resulting in a small, fixed number of packets to be stored per port.
When the port buffer fills up, dropped packets result.) The other two Q-Series Switches
QS580 and QS5116 dynamically allocates buffer from an 4MB memory pool. This
dynamic buffer allocation provides the capability for the maximum resources of the

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9

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Magnum Quad-Series unit to be applied to all traffic loads, even when the traffic activity
is unbalanced across the ports. Since the traffic on an operating network is constantly
varying in packet density per port and in aggregate density, the Magnum Quad-Series
Switches are constantly adapting internally to provide maximum network performance
with the least dropped packets.

When the Switch detects that its free buffer queue space is low, the Switch
sends industry standard (full-duplex only) PAUSE packets out to the devices sending
packets to cause “flow control”. This tells the sending devices to temporarily stop
sending traffic, which allows a traffic catch-up to occur without dropping packets. Then,
normal packet buffering and processing resumes. This flow-control sequence occurs in a
small fraction of a second and is transparent to an observer. See Section 4.6 for
additional details.

Another feature implemented in Magnum Quad-Series Switches is a collision­based flow-control mechanism (when operating at half-duplex only). When the Switch
detects that its free buffer queue space is low, the Switch prevents more frames from
entering by forcing a collision signal on all receiving half-duplex ports in order to stop
incoming traffic.

The latency (the time the frame spends in the Switch before it is sent along or
forwarded to its destination) of the Quad-Series Switches varies with the port-speed
types, and the length of the frame is a variable here as it is with all store-and-forward
switches. For 10 Mb-to-10 Mb or 10 Mb-to-100Mb or 100Mb-to-10 Mb forwarding, the
latency is 15 microseconds plus the packet time at 10 Mb. For 100Mb-to-100Mb
forwarding, the latency is 5 microseconds plus the packet time at 100Mb.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

2.3 Features and Benefits

 100Mb switching services for large, high performance Ethernet LANs

Magnum Quad-Series Switches provide Fast Ethernet switching on all

ports. They perform high speed filter/forward operations on the traffic,
giving each port’s segment a full 100Mb (or 10 Mb) of bandwidth.

 Configurable with fiber ports, all connector types and speeds

Quad-port modules are available with 100Mb mm ST, SC, VF-45, MTRJ

single-mode SC, and 10 Mb ST-type connectors. The configuration of the
fiber ports, in the factory or in the field, allows the Quad-Series Switches
to adapt to mixed and changing fiber types in any application.

 Configurable with RJ-45 (copper) ports, 10/100 auto-negotiation

RJ-45 Quad-port modules provide twisted pair segment connections, with

N-way auto-negotiation or with manual speed and mode settings per port

 Mixed-media configurations for maximum flexibility

Combinations of port module types can be configured in the same unit,

adapting the Quad-Series Switches to varying quantities and types of fiber
vs. copper media. Port module changes can even be done in the field.

 Full-duplex or Half-duplex operation, auto-sensing

All fiber and RJ-45 (copper) ports are capable of half- or full-duplex,

individually selected. All RJ-45 ports support 10/100 auto-negotiation, or
can be user-selected for the desired operating mode and speed.

 16-port, 12-port, 8-port and 4-port models

With two chassis sizes (16-port and 8-port) configurable with 4-port

QPMs, capacity options complement the mixed-media configurability.

 Plug-and-Play installation for high performance switching

Magnum Quad-Series Switches are self-learning for node addresses. They
can be placed into operation without complex set-up procedures, even in
large networks. They operate transparent to system software.

 Front-mounted LEDs, world-wide AC power supply
Front panel LED’s on each quad-port module display the status of each

port for easy monitoring. An internal auto-ranging AC power supply
allows any Magnum Quad-Series Switches to be used throughout the
world. (A 48VDC power supply is optional, see Appendix B).\

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

2.4 Applications

Magnum Quad-Series Mixed-Media Switches offer high performance and
flexibility, and are easily used in a variety of applications including client/server
computing, performance upgrades of departmental networks, and collapsed backbone
applications. The Dual-Speed characteristic of the Quad-Series Switches enables them to
inter-connect a series of subnets (one subnet per Q-Series Switch) in a LAN traffic
center. The subnet connections may be via either fiber or twisted pair cabling, and may
be 100Mbps or 10 Mbps speed and full-or half-duplex mode.

The mixed-media capability is ideal for upgrading existing Ethernet LAN
networks, where existing cabling must be accommodated. The fiber-built-in media
capability is ideal for integrating future-proof fiber cabling into the LAN structure.

Example 1 : Magnum QS580

In a typical 10 Mb network performance upgrade, some existing cascaded 10
Mbps hubs connect a group of users who share one 10 Mb traffic domain. The Magnum
QS580 Quad-Series Switch provides eight 10/100Mb traffic domains for increased
performance. It can segment 10 Mbps and 100Mbps units, hubs and servers, in the
existing network into multiple domains, providing greatly increased bandwidth. In this
case, two 100Mb fiber connections are required to connect to more distant LAN centers,
and a configuration with two “combo” 3@RJ-45 + 1@fiber-built-in QPMs is used.

The Magnum QS580 provides complete network connectivity so that all 10 Mb
and 100Mb nodes operate in a unified manner, functioning as one plug-and-play
switched network facility. It filters and forwards packets from one segment to another,
containing the local traffic and allowing only the packets which need to be forwarded to
go outside to the appropriate other segments. This is ideal for a central departmental
switch in a high-performance LAN center. Figure 2.4 illustrates this example.

Fig. 2.4a: AFTER

Magnum QS580

Switch provides

central connectivity

while maintaining

full 10 Mbps and

100Mbps bandwidth

on each segment.

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100Mbps Fiber
Segment

Magnum 800E

Workgroup Hub

4

PWR COL12

LINKRXLINK

100 Mb/s

3

GARRETT

10 Mbps users

5
8
6
7

Magnum QS580

Fib er Switch

GARRETT

PWR

LK

100/10

RX

FDX/HDX

ACT

LK

100/10

ACT

FDX/HDX

100Mbps Fiber
Segment

Magnum 800E

Workgroup Hub

PWR COL12

100 Mb/s

GARRETT

4
3

5
8

LINKRXLINK

6
7

RX

100Mbps users

12

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Example 2 : Magnum 8-port QS5108
In another application, a Switch is needed to provide a Fast Ethernet backbone.

The backbone consists of four high-speed LAN segments, each operating over 100MB
full-duplex fiber lines. In addition to interconnecting the fiber backbone segments in the
network center, the Switch needs to provide high-speed switched support for two central
servers, for a 100MB connection to a router, and for a dual-speed hub serving a local
workgroup of over a dozen users, printers, etc.

The Magnum QS5108 equipped with one Fiber and one RJ-45 quad-port
modules provides an economical solution, configured with 8 switched ports (four
100Mbps fiber and four 10/100 RJ-45) in a rack-mount box. No Media Converters are
needed. The Fiber QPM can be selected to provide any 100Mbps fiber media connector
type desired. QPMs with multi-mode or single-mode fiber types are available.

This requirement for connecting local devices over twisted pair cabling is
handled by the Magnum QS5108 using a 4-port RJ-45 Quad-Port Module. The QPM
provides a switched port for two local high speed servers, another for the router, another
for the users connecting into a 16-port dual-speed hub such as the Magnum DS8016.

Since 100Mb fiber Ethernet has severe distance limitations at half-duplex, it is
necessary in high speed backbones to operate fiber links in the full-duplex mode. Many
low-end switches that only have RJ-45 N-way 10/100Mb ports would need to have a
media converter on each fiber line. But most media converters do not support auto­negotiation and would not enable the fiber backbone lines to operate full-duplex. But the
Magnum QS5108 . . . with built-in switched fiber ports at 100Mb speed, with full-duplex
mode as a default setting on fiber ports, and with some RJ-45 N-way 10/100Mb ports as
well. . . handles this application readily.

PWR

100/10

Magnum QS5108

Magnum DS8016 Stackable Hub

1 2 3 4 5 6 7 8 9 10 11

X

BR

PWR

LK/RX

12 13 14 15 16

PORT

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

COL 10

100

COL 100

UPLINK

100Mbps Workstations

Magnum QS5116

Fiber Switch

Fiber Switch

TTGARRE

100Mb Fiber
segmen

t

Magnum 800E

1 2 345 6 7

Workgroup Hub

8

PWR COL

LINKRXLINK

100 Mb/s

GARRETT

RX

1
2
3
4

FDX/HDX

Link

ACT

LK

ACT

LK

FDX/HDX

100/10

100Mb Servers

Internet

Router

Figure 2.4b: The Magnum QS5108 provides a 100Mb fiber backbone facility.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Example 3: Magnum 16-port QS5116
In another situation similar to Example 2 above, a larger central Switch is

needed to provide for a 6-segment 100Mb fiber Fast Ethernet backbone, and switched
copper support for 4 high speed local servers. In addition, the router and two dual-speed
hubs need switched copper ports. The total is 14 ports, 6 fiber and 8 copper.

The mixed-media flexibility of the Magnum Quad-Port Switches provides the
user with more than one configuration in this case. The two ports not immediately used
may be either fiber or copper. If the probable growth of the central Switch is towards
more fiber backbone segments, then two quad-port fiber QPMs are selected to provide 6
required fiber ports and two for spares and/or future backbone expansion. The 8
switched copper ports are handled with two RJ-45 Quad-Port Modules configured into
the Magnum QS5116. Should the number of servers expand, more than one server can
be serviced by a switched QS5116 port by using a small 4-port 100Mbps hub.

If the probable growth of the central Switch is towards more local high speed
servers and users, then one quad-port fiber QPM is selected to provide 4 of the required
fiber ports, and two “combo 3@RJ-45 + 1@fiber” QPMs are configured for the other 2
fiber ports plus 6 of the switched copper ports. Finally, an RJ-45 QPM is configured to
provide for the remaining 2 copper ports plus two for spares and/or future expansion.
Should the need arise to add a built-in-fiber backbone port in the future, the RJ-45 QPM
could be removed and another “3+1 combo” QPM installed in the field. Alternatively, a
100MB Media Converter (such as the Magnum 15E) may be used on a copper port, with
internal jumpers (See Section 3.4) set to support fixed 100MB FDX on the RJ-45 port.

PWR

Magnum QS5116

Magnum QS5116

Magnum QS5116

Fiber Switch

Fiber Switch

GARRETT

100/10

LK

1
2
3
4

FDX/HDX

100/10

ACT

LK

ACT

1
2
3
4

FDX/HDX

ACT

ACT

LK

FDX/HDX

100/10

10/100

ACT

LK

FDX/HDX

100/10

10/100

Internet

100Mb fiber segment

100Mb Servers

Magnum DS8016 Stackable Hub

1 2 3 4 5 6 7 8 9 10 11

X

BR

PWR

LK/RX

12 13 1 4 15 16

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

PORT

COL 10

100

COL 100

UPLINK

and Workstations

Magnum 800E

Workgroup Hub

100 Mb/s

GARRETT

100Mb Workgroup

1 2 345 6 7

PWR COL

8

LINKRXLINK

Magnum DS8016 Stackable Hub

BR

PWR

LK/RX
PORT

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

COL 10

100

COL 100

RX

Router

1 2 3 4 5 6 7 8 9 10 11

X

12 13 14 15 16

UPLINK

10Mb Workgroup

Fig 2.4c: Magnum QS5116 provides a 100Mb mixed-media backbone Switch.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

3.0 INSTALLATION

Before installing the equipment, it is necessary to take the
following precautions:

1.)

If the equipment is mounted in an enclosed or multiple rack
assembly, the environmental temperature around the equipment
must be less than or equal to 50

2.)

If the equipment is mounted in an enclosed or multiple rack
assembly, adequate air flow must be maintained for proper and
safe operation.

3.)

If the equipment is mounted in an enclosed or multiple rack
system placement of the equipment must not overload or load
unevenly the rack system.

4.)

If the equipment is mounted in an enclosed or multiple rack
assembly, verify the equipment’s power requirements to prevent
overloading of the building/s electrical circuits.

5.)

If the equipment is mounted in an enclosed or multiple rack
assembly verify that the equipment has a reliable and
uncompromised earthing path.

0

C.

Installation: This section describes installation of the Magnum Quad-Series Switches,
as well as connection of the various Ethernet media types.

3.1 Locating Magnum Quad-Series Switches

The location of a Magnum Quad-Series Switch is dependent on the physical
layout of the network. Typically the Switch is placed in a central wiring location where
groups of network devices need to be connected in order to communicate with each
other. These Switches are typically rack mounted in a wiring closet see Section 3.3.2
below), but because they have rubber feet they can also be installed on a shelf or table
top. The compact size of the 8-port QS580 unit allows it to be easily placed in an office
or lab area, and it can also be either shelf of wall-mounted (see Section 3.3.1 below).
Locate an AC receptacle that is within six feet (2 meters) of the intended
Magnum Quad-Series site. The rugged metal case of the Magnum Quad-Series will
normally protect it from accidental damage in a lab or workplace setting. Maintain an
open view of the front to visually monitor the status LEDs. Keep an open area around
the unit so that cooling can occur from the small fan on the left side, while the unit is in
operation. See figure below.

Figure 3.1: Location of 8-port Magnum QS580’s cooling fan exhaust

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110-220

VAC

47-63Hz

1.0-0.5A

15

ON

OFF

FAN EXHAUST

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

3.2 Connecting Ethernet Media

The Magnum Quad-Series Fiber Switches are specifically designed
to support all standard Ethernet media types within a single Switch unit. This
is accomplished by using a family of Quad-port Modules (QPMs) which can be
individually selected and configured per-port. See Section 2.4 for a description
of the QPMs.

The various media types supported along with the corresponding IEEE

802.3 and 802.3u standards and connector types are as follows:

IEEE Standard

Fiber:

small form factor

100BASE-FX

10BASE-FL

Copper:

10BASE-T & 100BASE-TX twisted pair 100m (328 ft)

Media Type Max. Distance Port Module

1

m

m

Fiber

2

sgl.m

Fiber 18.0km (95K ft) QPM-SSC

1

m

m

Fiber

m

1

mm = multi-mode

1

m

2.0km (6,562 ft)

2.0km (6,562 ft)

Fiber 2.0km(6,562 ft) QPM10-FST

QPM-MSC, -MST

QPM-MTRJ, -MV45

QPM-RJ45

2

sgl.m = single-mode

3.2.1 Connecting Fiber Optic ST-type, “twist-lock”

The following procedure applies to installations using a QPM with ST-type fiber

connectors. This procedure applies to ports using a QPM-MST or QPM10-MST.

1. Before connecting the fiber optic cable, remove the protective dust caps from the
tips of the connectors on the QPM. Save these dust caps for future use.

2. Wipe clean the ends of the dual connectors with a soft cloth or lint-free lens tissue

dampened in alcohol. Make certain the connectors are clean before connecting.

Note: One strand of the duplex fiber optic cable is coded using color
bands at regular intervals; you must use the color-coded strand on the
associated ports at each end of the fiber optic segment.

3. Connect the Transmit (TX) port (light colored post) on the Magnum QPM to the
Receive (RX) port of the remote device. Begin with the color-coded strand of
the cable for this first TX-to-RX connection.

4. Connect the Receive (RX) port (dark colored post on the PM) to the Transmit
(TX) port of the remote device. Use the non-color coded fiber strand for this.

5. The LINK LED on the front of the QPM will illuminate when a proper
connection has been established at both ends (and when power is ON in the unit).
If LINK is not lit after cable connection, the normal cause is improper cable
polarity. Swap the fiber cables at the QPM connector to remedy this situation.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

3.2.2 Connecting Fiber Optic SC-type, "Snap-In"

The following procedure applies to installations using a QPM with SC-type
fiber connectors, i.e., using QPM-MSC, QPM-SSC single-mode, and QPM10-MSC.
When connecting fiber media to SC connectors, simply snap on the two square
male connectors into the SC female jacks of the QPM until it clicks and secures.

3.2.3 Connecting Single-Mode Fiber Optic

When using single-mode fiber cable, be sure to use single-mode fiber port
connectors. Single-mode fiber cable has a smaller diameter than multi-mode fiber cable
(9/125 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). Single-mode
fiber allows full bandwidth at longer distances, and may be used to connect 10 Mb nodes
up to 10 Km apart, or 18Km with the QPM-SSC.

The same procedures as for multi-mode fiber applies to single-mode fiber
connectors. Follow the steps listed in Section 3.2.2 above.

3.2.4 Connecting Twisted Pair (RJ-45,CAT3, CAT5, Unshielded or

Shielded)

The RJ-45 ports of the Magnum Quad-Series can be connected to the following
two media types: 100BASE-TX and 10BASE-T. CAT 5 cables should be used when
making 100BASE-TX connections. When the ports are used as 10BASE-T ports, CAT 3
may be used. In either case, the maximum distance for unshielded twisted pair cabling is
100 meters (328 ft).

Media

IEEE Standard Connector

Twisted Pair (CAT 3, 4, 5) 10BASE-T RJ-45
Twisted Pair (CAT 5) 100BASE-TX RJ-45

NOTE : It is recommended that high quality CAT. 5 cables (which work for both 10 Mb

and 100Mb) be used whenever possible in order to provide flexibility in a

mixed-speed network, since dual-speed ports are auto-sensing for either 10 and

100Mb/s.

The following procedure describes how to connect a 10BASE-T or 100BASE­TX twisted pair segment to the RJ-45 port. The procedure is the same for both
unshielded and shielded twisted pair cables.

1. Using standard twisted pair media, insert either end of the cable with an RJ-45
plug into the RJ-45 connector of the port. Note that, even though the connector is
shielded, either unshielded or shielded cables and wiring may be used.

2. Connect the other end of the cable to the corresponding device

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17

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

3. Use the LINK LED to ensure proper connectivity by noting that the LED will be
illuminated when the unit is powered and proper connection is established

3.3 Table-Top or Shelf Mounting

The Magnum Quad-Series Switches can be easily mounted on a table-top or

any suitable horizontal surface, and has four rubber feet to provide stability without
scratching finished surfaces.

3.3.1 Wall (or Vertical Surface) Mounting, 8-port QS580

Each Magnum QS580 Switch is shipped with two metal mounting brackets
(and screws) to allow the unit to be mounted in nearly any desired orientation or position.
The brackets are attached to the metal switch case using one of the metal screws for each
bracket, and attached to the Magnum QS580 through the round hole of the bracket. A
user-supplied screw attaches the bracket to the mounting surface. It is recommended that
the mounting brackets be attached to two opposite corners of the unit. When properly
attached, the brackets will extend slightly below the base of the unit to allow clearance
for the rubber feet and for cooling fan exhaust space.

100 Mb/s

Magnum QS580

Fiber Switch

GARRETT

GARRETT

MagnumQS58

mounting

0, optional

brackets

Proper mounting

bracket attachment

Figure 3.1: Magnum QS580, metal mounting brackets

3.3.2 Rack-mounting, models QS5108 and QS5116

Installation of a Magnum QS5108 and QS5116 mixed-media fiber Switch in a
19” rack is a simple procedure.
The units are 1U (1.70”) high.
When properly installed, the
front-mounted LED status

PWR

Magnum QS5116

Magnum QS5116

Magnum QS5116

Fiber Switch

Fiber Switch

TT

GARRE

100/10

1
2
3
4

FDX/HDX

LK

ACT

LK

ACT

100/10

100/10

ACT

LK

1
2
3
4

FDX/HDX

FDX/HDX

LK

ACT

1
2
3
4

FDX/HDX

indicators should be in plain
view and easy to read. Rack-mount installation requires special 19” rack-mounted

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18

ACT

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

g

g

g

g

g

g

g

g

g

g

brackets and screws (included with each QS5108 and QS5116 unit). The brackets attach
to the front sides of the switch, which is then fastened into a standard 19” RETMA rack.

The 23” brackets and ETSI brackets are also available (optional) for Rack­mounting of Magnum QS5108 and QS5116 mixed-media fiber Switches. The 23”
brackets are more popular in Telco industry where they are standard for Central Office
rack-mounting purposes. The
23” brackets are mainly used for

PWR

1

larger equipment assemblies in
rack-mounting frames, and are
frequently accessed in operation
from both sides.
The ETSI (European

Telephone standard) brackets are
similar to the 19” brackets but
use metric dimensions.

The optional 23” brackets and
the ETSI brackets come as a pair
in a package, along with the
necessary screws for attaching
the brackets to the sides of
the Magnum Switch unit.

Ma

num QS5116

Magnum QS5116

Ma

num QS5116

Fiber Switch

Fiber Switch

GARRETT

Ma

num QS5116

num QS5116

Ma

Ma

num QS5116

Fiber Switch

Fiber Switch

GARRETT

Ma

num QS5116

num QS5116

Ma

Ma

num QS5116

Fiber Switch

Fiber Switch

GARRETT

Ma

num QS5116

Magnum QS5116

Ma

num QS5116

Fiber Switch

Fiber Switch

GARRETT

00/10

1
2
3

FD4X/HDX

PWR

1

00/10

1
2
3

FD4X/HDX

PWR

100/10

1
2
3

FDX4/HDX

PWR

100/10

1
2
3

FDX4/HDX

LK

ACT

LK

ACT

100/10

LK

ACT

LK

ACT

100/10

LK

ACT

LK

ACT

100/10

LK

ACT

LK

ACT

100/10

100/10

ACT

FDX/HDX

ACT

FDX/HDX

ACT

FDX/HDX

ACT

FDX/HDX

ACT

LK

1
2
3

FDX4/HDX

100/10

ACT

LK

1
2
3

FDX4/HDX

100/10

ACT

LK

1
2
3

FD4X/HDX

100/10

ACT

LK

1
2
3

FD4X/HDX

ACT

1
2
3
4

FDXLK/HDX

ACT

1
2
3
4

FDXLK/HDX

ACT

LK

1
2
3
4

FDX/HDX

ACT

LK

1
2
3
4

FDX/HDX

Fig 3.8 Multiple Magnum QS5116 units rack-mounted in a 23” frame

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

3.4 RJ-45 ports, internal jumper settings for 10/100Mb (auto-

negotiation) or for fixed Half- or Full-Duplex @ 100Mb, per port

The factory (or default) setting is for auto-negotiation on all RJ-45 ports, which is
generally popular. It works well under most circumstances, but cannot always be

NO

NO

J4

Full Duplex

Speed

10/100 Mb,

100 Mb

100 Mb

100Mbps Half

J1

1 23

Duplex

100 Mb

4

Bottom QPM Retaining

Two(50) Pin

QPM Connectors

(inserts into main board

)

Jumper Settings for Auto-Negotiation, or for 100MB Half or

JP2-3,6-7 , 10 - 11

JP1-2, 6-7, 9-10
JP1-2, 7-8, 11-12

Factory Settings

9 10 11 12

J1

5 6 7 8

1 2 3 4

Jumper Port

Pin 2-3,6-

Pin 1-2, 6-7, 9-10

Pin 1-2, 7-8

10/100 M

Auto Negotia

J1

10/100 Mb

1 2 3

tion

4

Function Factory Settings

7,10-11

Auto-Negotiation YES
FDX @100 config
HDX@100 config

, 11-12

bps

AUTO

J1 J2 J3

1

100Mbps Full

J1

1 23

4

Printed Circuit car d

TOP

Uplink

Switch

FRONT

LED

Duplex

100 Mb

Jumper Settings for HDX/FDX
and Auto Negotiation

Figure 3.4. RJ-45 ports, internal jumper settings. Note: Be certain that the main

power is disconnected before opening the unit or changing any internal jumper settings.
depended upon to work as expected. If auto-negotiation will not function properly in

your setup, internal jumpers allow the speed and mode of the Q-Series RJ-45 (copper)
quad-ports to be fixed, even if the attached device may or may not support auto­negotiation. This is desirable when there are unknown devices presently or potentially
connected, which will not operate correctly with auto-negotiation. Examples include
some NICs and most Media Converters.

Therefore, the default setting of auto-negotiation (copper ports) is generally
desirable because it is widely used and allows for the connection of various devices
without re-configuration. Under certain conditions,(where the connected device is full
duplex and does not support Auto-negotiation; or the connected device does not support
Auto-negotiation properly) no auto-negotiation is better and the internal jumper settings
will permit this to be selected on a per-port basis.

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20

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

See Section 4.4 for additional information on auto-negotiation functionality.

3.5 Fiber 100Mb ports, internal jumper settings for 100Mb fixed Half- or

Full-Duplex, per port

The factory (default) setting is for full-duplex on all fiber 100Mbps ports, which is
generally popular. FDX works well under most circumstances, but cannot always be
depended upon to work as expected. If full-duplex on 100Mbps will not function
properly in your setup, internal jumpers allow the mode of the Q-Series fiber

Jumper Settings for 10 or 100Mbps Fiber Half or

Jumper Port

J1

9 10 11 12
5 6 7 8

1 2 3 4

JP1-2, 6-7, 9-10
JP1-2, 7-8, 11-12

Pin 1-2, 6-7, 9-10
Pin 1-2, 7-8,

Factory S

11-12

ettings

Printed Circuit card

TOP

1
2
3

4

Function

FDX @100 config

HDX@100config

100Mbps Full

J1

1 23

J1 J2 J3

LED

Full Duplex

Factory Settings

1

Duplex

100 Mb

4

YES

NO

100Mbps Half

J1

1 23

100 Mb

100 Mb

Duplex

100 Mb

4

Jumper Settings for HDX/FDX

J4

Bottom QPM Retaining

Two(50) Pin

QPM Connectors

(inserts into main board

Speed

Figure 3.5. Fiber ports, internal jumper settings.
Note: Be certain that the main power is disconnected before opening the unit or

changing any internal jumper setting

)

quad-ports to be fixed, even if the attached device may or may not support full-duplex.
This is desirable when there are unknown devices presently or potentially connected,

which will not operate correctly with full-duplex. Examples include hubs that support
only half-duplex by default.

Therefore, the default setting of full-duplex (fiber ports) is generally desirable
because it is widely used and allows for the connection of various devices without re-

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21

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

configuration(specially along with switches). Under certain conditions,(where the
connected device is half duplex and does not support full-duplex; or the connected device
does not support full-duplex properly) no full-duplex is better and the internal jumper
settings will permit this to be selected on a per-port basis.

3.6 Combo(3+1) ports, internal jumper settings for 10/100 RJ-45 Auto-

Negotiation or 100Mb fiber fixed Half- or Full-Duplex , per port

Jumper Settings for 10/100Mbps RJ-45 Auto-Negotiation, 100Mbps Fiber Half or Full Duplex

Jumper Port

JP2 -3, 6-7, 10-11 Pin 2-3, 6-7, 10-11 Auto-Negotiation YES

JP1-2, 6-7, 9-10
JP1-2, 7-8, 11-12

Factory Settings

Pin 1-2, 6-7, 9-10

Pin 1-2, 7-8, 11

10/100 M

Auto Negotia

J1

For RJ-45 ports only

1 2 3 4

AUTO

9 10 11 12

)

J1

5 6 7 8

1 2 3 4

Function

FDX @100 config

-12

HDX@100 config

bps

tion

10/100 Mb

J1 J2 J3

100Mbps Full

J1

1 23

For RJ-45 &
Fiber port

Printed Circuit card

P

TO

1

2
3

4

LED

Factory Sett ings

YES

Duplex

100 Mb

NO

J1

1 23

100Mbps Half

4

1

4

For RJ-45 &
Fiber port

Jumper Settings for H DX/FDX

J4

Bottom QPM Retaining

Two(50) Pin

QPM Connectors

(inserts into main board

Speed

10/100 Mb(RJ-45)

100 Mb(Fiber )

100 Mb(Fiber)

Duplex

100 Mb

Figure 3.6 Combo ports, RJ-45 and Fiber internal jumper settings.
Note: Be certain that the main power is disconnected before opening the unit or

changing any internal jumper settings

)

The factory (default) setting is Auto-Negotiation on all RJ-45 ports and full-

duplex on fiber 100Mbps ports, which is generally popular. Auto-Negotiation on RJ-45
and FDX on fiber port works well under most circumstances, but cannot always be
depended upon to work as expected. If full-duplex will not function properly in your
setup, internal jumpers allow the speed and mode of the Q-Series Combo- quad ports to
be fixed, even if the attached device may or may not support full-duplex. This is
desirable when there are unknown devices presently or potentially connected, which will

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22

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

not operate correctly with full-duplex or half-duplex. Examples include hubs that
support only half-duplex by default.

If auto-negotiation will not function properly in your setup, internal
jumpers allow the speed and mode of the Q-Series RJ-45 (copper) quad-ports to be fixed,
even if the attached device may or may not support auto-negotiation. This is desirable
when there are unknown devices presently or potentially connected, which will not
operate correctly with auto-negotiation. Examples include some NICs and most Media
Converters

3.7 Fiber 10Mb ports, internal jumper settings for 10Mb fixed Half- or

Full-Duplex at all ports

The factory (default) setting is for half-duplex on all fiber 10Mbps

ports, which is generally popular. HDX works well under most circumstances. If half­duplex on 10Mbps will not function properly in your setup, internal jumpers allow the
duplex mode of the Q-Series fiber quad- ports to be changed, even if the attached device
supports full-duplex. This is desirable when there are devices connected which will not
operate correctly with half-duplex. Examples include Switches that support full-duplex
only.

Therefore, the default setting of half-duplex ( fiber ports) is generally desirable
because it is widely used and allows for the connection of various devices without re­configuration.(where the connected device is half duplex and does not support full­duplex i.e. Hub and media-converters.)

Note: For 10Mbps fiber ports, the user can set the jumpers either at full-duplex or half

duplex on all the four ports. There is no individual port duplex options for 10 Mb port.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

N

N

Jumper Settings for 10Mb Fiber Half or Full

Jumpe

JF 1-2

JF3
JF3

JF2-4

JFD1

JP1-3

JP2-

JFD1

Factory Settings

10Mbps Half-

JFD

xDuple

JFD

2

1

3

4

Jumper Settings for HDX/FDX

Figure 3.7 10Mbps Fiber ports internal jumper settings.

1
3

Port

PIN 1­Pin 2-4
PIN 1-

PIN 2-

2

4

10Mbps Full-

xDuple

Functio

FDX @10Mb c

HDX@10Mb

FDX@10Mb c

HDX @10Mb c

JFD

12
3

4

JFD1

Factory

onfig

O

YE

onfig

onfig

O

YE

10Mbps Full

JF3

1

10

Printed Circuit card

TO

LE

Spee

b

10 M

10 Mb

10M

10M

Duplex

2

10Mbps Half

JF3

10

Bottom QPM Retaining

JF3

Two(50) Pin

4PM Connectors

(inserts into main board

Jumper Settings for HDX/FDX

Duplex

Factory Settings

JF

2

1

3

4

5

7

)

ote: Be certain that the main power is disconnected before opening the unit or

N

changing any internal jumper settings

3.8 Powering the Magnum Quad-Series Switch

The Magnum Quad-Series S

upply, and has a recessed male IEC connector for the AC power cord at the left-rear. A

s
manual power ON-OFF switch is adjacent. A six-foot 115 VA

ord is su

c pplied with each unit shipped within the United States and Canada.

110-220

VAC

47-63Hz

1.0-0.5A

The auto-ranging power supply supports installation environme ts where the
AC voltage is from 90 to 260 volts with a power input fre
Hz. The 8-port units will consume just under 20 watts of power ty
port units will consume about 35 watts typically.

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witches incorporate an internal universal power

C 60 Hz standard power

Figure 3.5: Magnum Quad-

ON

OFF

Series AC power conn

n

quency of between 47 and 63

ically, and the 16-p

ector

24

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

When connecting the Ethernet cabling, there is no need to power down the
unit. Individual segments can be connected or disconnected without concern for AC
power-related problems or damage to the unit.

Power supply options are available to suit the Quad-Series Switches to special
high-availability g:

* -48VDC, 24VDC & 125VDC with single
* -48VDC, 24VDC & 125VDC with dual-source DC input,

See the Appendices of this manual for more details. Use an RFQ for other variations.

communications and/or heavy industrial-grade applications, includin

DC input,

3.9 Quad Port Module (QPM) Installation

The Magnum Q-Series Fiber Switches are normally
with all required QPM modules installed. There may be situations where QPM cards
need to be added or replaced. In cases where additional QPM cards are needed, the face
plate for an available front-mounted slot must be remove

ibes

descr this operation.

3.9.1

Preparation for Installing and Removing QPMs

received from the factory

d. The following procedure

STOP!!!

Be sure the power cord is unplugged

from the chassis before attempting to remove

and/or replace any QPM cards.

Failure to do so may result in damage to the u

and will voi he warranty.

d t

nit

Caution- Avoid Sta

equipment) are sensitive to static discharge. Use proper ESD measures

when handling port modules.
Step 1. Make sure the QPM Card package has all necessary accessories to install it

properly. The QPM Card package for field installation comes along w

QPM Card, two 7/16 stand-offs , two #4-40 Pan-Head screws, two #4-40 bla

color Flat-head screws and two

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tic Discharge: The port modules (like most electronic

ith a

Headers pin.

25

ck

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Step 2.

Remove Chassis Cover

with top and bottom part and

ssembled together with the help of 20 Philips head screws. There are 7 screws located

a

n front-top of the unit and three screws each on the left and right edges. Remove these

o

The Magnum Q-Series chassis are combined

screws. Once these are removed, the top cover is easily lifted off the chassis base. When
the chassis top cover has been rem

oved, the interior of the unit is exposed.

20 Phillips Head Screws on Top

TopChassis Cover

Power Input

PWR

Magnum QS5116

Fiber Switch

GARRETT

Figure 3.9.1a: Removing Chassis Cover

Caution: Be careful not to disturb the power supply.

Looking that there are individual

PM connector sockets along with two stand-offs for each QPM card position. There are

Q

our QPM slots located on the front of the QS5116 model, whereas QS580 and QS5108

f
has two

QPM slots in the front. (See Figure 3.9.1b).

down into the Magnum Q-Series unit, notice

AC Power Input

Cooling Fan

Left
Side

LED Status Slot

Figure 3.9.1b: Magnum QS5116, Top View with Chassis Cover

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Power Supply Board

Media Connector

Back of Unit

Eight QPM Slots

26

with electronic
elements

Front of Unit

Right
Side

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Step 3. Remove bottom-front and modules rear top Retaining Screws in any QPM

or Face Plates

On the bottom-front of the unit, there are two retaining screws for each QPM card slot as
well as two other retaining screws on the rear top of the module. These four screws are
used to secure a QPM face plate in position. These screws are also used to secure the
individual QPM cards, which can be subjected to significant forces from the attached
cables. (See Figure 3.9.1c)

Two retaining screws on the rear top of
module

Magnum QS5116

Fiber Switc h

GARRETT

T

wo B ottom retaining Scr ew s for each Q P M card

QPM CARDS

Magnum QS5116

Fiber Switch

1

GARRETT

J1 J2 J3

Printed Circuit card

J4

TOP

Figure 3.9.1c: Front View - QPM Retaining Screws hold Face Plates

3.9.2 Installing QPM Cards in the Magnum Q-Series

Up to four front-mounted QPM cards may be installed in one Magnum 5116

Fiber switch unit. Follow these steps to install a QPM.
Step 1. Remove top chassis cover. See pr

ocedure in Section 3.9.1 above.

Step 2. Screw down tightly the two 7/16 stand-off on the top of pre installed stand-off

from the factory.

p 3. Align the two headers pin on the top of the two sets of socket fixed at the

Ste

bottom side of the QPM module. (Note: After firmly attached the sockets and

the header pin, move the mounted pins slightly tilted towards the front of the

chassis.
Step 4. The figure here

illustrates the basic

layout of an

individual QPM

card. Each QPM

card fits into the

selected QPM

Printed Circuit c a rd

TOP

Uplink
Switch

FRONT

connector socket slot. Align the connector pins on the bottom of

Jumper Settings for HDX/FDX
and Auto N e g o tia t ion

J1 J2 J3 J4

LED

Two Set of Ten(

QPM Conn ec tor

(inserts into main

the QPM card with the connector socket inside the unit.

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27

10) Pin

board

)

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Step 5. Be sure the QPM front panel is guided into the front slot cut-out first and t

precisely aligned the header pins with the holes in the socket slot mounted on

the board. Slowly and carefully apply enough pressure on both rear corner of

QPM Mo

dule to insert the QPM card’s pins into position. A click sound will

oper lockup of the two, see Figure 3.9.2b. (If you forcedetermine the pr
QPM down when th
the pins will

e pins are not properly aligned with the holes in the header,

become bent and the QPM is damaged).

hen

the

Step 6. e QPM card will be secured by the header connector, the front

Once inserted, th
panel port slot cut
screws to secure t

-out, and retaining screws. Use #4-40 Pan Head retaining

he module rear part and #4-40 Flat Head (Black color)

retaining screws for front panel.

NOTE: If a QPM is difficult to install, try it in another p

ort slot. Some of the
port modules may fit easily in one port slot and be very hard to install in
another.

QPM CARDS

Magnum QS5116

Fiber Switch

1

GARRETT

Figure 3.9.2a: Inserting QPM Cards into a Magnum QS5116

J1 J2 J3

Printed Circuit card

J4

TOP

NOTE: All QPM slots need not be filled in order for the Magnum Q-Series
unit to be operational. When leaving QPM slots empty, always use a face
plate (Magnum QPM-FP) to cover the slot opening in the front panel. T
will maintain proper cooling air

flow, safety, and operation as required by

his

FCC, CE, and other regulations.

Step 7. The figure below
shows the top view of QPM
Card after s

uccessfully

installed the QPM cards inside
the QS5116.

AC Power Input

Cooling Fan

Left
Side

Media Connector

Power Supply Board

Four QPM Slots

Back of Unit

with electronic
elements

Front of Unit

Right
Side

Fig. 3.9.2b Top View :
QPM Module Installed inside a QS5116

Step 8. O pty slots),

nce all QPM cards have been installed (including face plates for em

the chassis cover should be replaced.

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28

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

3.9.3

Removing QPM Cards

To properly remove a QPM card from the Fiber Switch, follow the 3 steps
below.

Step 1. See procedure in Section 3.9.1 above.

Remove chassis cover

Caution: Be sure

the power cord is unplugged.

Step 2. g screws for the QPM and Face Plate

Remove bottom-front retainin

On the bottom

-front of the unit there are two retaining screws for each QPM
card and face plate slot. These s
position (see Figure 3.9.3a). Re

crews are used to secure a QPM card in

move the front screws first and then screw

mounted on the rear-top of the QPM to be removed.

Two retaining screws on the rear top of
module

Magnum QS5116

Fiber Switch

GARRETT

Two B o ttomretaining Screws for each Q P M card

QPM CARDS

Magnum QS5116

Fiber Switch

1

GARRETT

J1 J2 J3

Printed Circuit card

J4

TOP

Figu g Screws

re 3.9.3a: Front View - Face Plate & QPM Retainin

Step 3. Remove QPM Card

Gently pull the QPM card up and out of the connector socket (see Fig.3.9.3b).

Figure 3.9.3b: Removing a QPM Card

If the slot from which the QPM card has been removed is to remain unused, be
sure to install a QPM face plate cover in it. If another QPM card is replacing
the one that has been removed, follow the steps as described for installing a
QPM card discussed in Section 3.9.1.

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QPM CARDS

Magnum QS5116

Fiber Switch

1

GARRETT

Printed Circuit card

29

TOP

J1 J2 J3
J4

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

4.0 OPERATION

This chapter describes the functions and operation of the Quad-Series.

4.1 Switching Functionality

A Magnum Quad-Series provides switched connectivity at Ethernet wire-speed

among all of its ports. The Magnum Quad-Series supports10/100Mbs for copper media
and 10 or 100Mb separate traffic domain for fiber port to maximize bandwidth utilization
and network performance. A ll other ports in a Magnum
Quad-Ser
other por

configuring to be done at installation
configuration settings are user options for UP-LINK on RJ-45 quad-port. Half / Full

uplex mode and 10 or 100Mbps selection for the switched ports can be done through

d
jumper settings inside the unit. Th

Each time a packet arrives on one of the switched ports, the decision is taken to
either filter or to forward the packet. Packets whose source and destination addresses are
on the same port segment will be filtered, constraining them to that one port and relieving
the rest of the network from processing them. A packet whose destination address is o
another port segment will be forwarded to the appropriate port, and will not be sent to t
other ports
network (

ies, but local traffic on a port will not consume any of the bandwidth on any

t.

Magnum Quad-Series units are plug-and-play devices. There is no software

Filtering and Forwarding

where it is not needed. Traffic needed for maintaining the operation of the

such as occasional multi-cast packets) is forwarded to all ports.

ll ports can communicate to a

or for maintenance. The only hardware

e internal functions of both are described below.

n

he

The Magnum Quad-Series Switches operate in the store-and-forwar
mode, which eliminates bad packets and enables peak performance to be achieved wh
there is heavy traffic on the network.

Address Learning

eries units have address table capacity of 24K

node addresses (12K for 8-port models), suitable for use in large networks. They are self­learning, so that as nodes are added or removed or moved from one segment to another,
the Quad-Port Switch automatically keeps up with node locations.

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All 16-port Magnum Quad-S

..

d switching

30

en

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

An address-aging algorithm causes least-used addresses to fall out in favor of

new frequently-used addresses. To reset the address buffer, cycle power down-and-up.

4.2 Status LEDs

For all Magnum Quad-Series models :
PWR : Power LED, ON when external power is applied to the unit.

LK : Steady ON, L
ACT : ON with port activity
F/H : Full /

Half duplex LED, ON when the port is running full

ink status for 10 Mbps and 100Mbps operation.

for 10 Mbps and 100Mbps operation.

duplex, OFF for half duplex.

100/10 : Speed LED, ON when the speed is 100Mbps , OFF when the

speed is 10 Mbps

4.3 Manual Switches for Up-link push-button, for RJ-45 quad-port
only

Figure 4.3 :

Up-link push-button
on RJ-45 quad-port

1 2 3 4

LK

x

100/10

ACT

FDX/HDX

The module has a manual Up-link push-button, located on the front panel next

to 10/100 her
connect t
repeater
noting Po t 1’s LK (li ich is illuminated when a proper link is made.

Mb RJ-45 Quad-port # 1 which it controls. It enables the port’s cable to eit

o a user station node (push in) or to be cascaded (push out) to a 10/100Mb

or switching hub in the network. Verify proper Up-link push-button position by

nk) LED status, whr

4.4 Auto-negotiation, for Fast Ethernet copper ports

agnum Quad-Series Fast Ethernet copper ports can be set for either fixed
100Mb speed or for 10/100 F/H N-way auto-negotiation per the IEEE802.3u standard.
The selec ia an internal jumper (see Section 3.4 for jumper-setting
instructions). The fact
the user may select ha
separately.

to connec
backbone, or to some other remote 100Mb device. In this case, it is desirable to operate
the fiber link at 100Mb speed, and at either half- or full duplex mode depending on the
capabilities of the remote device. Standard commercially-available Fast Ethernet me

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The M

tion is made v

ory default setting is for auto-negotiation. At 100Mb-fixed speed,

lf- or full-duplex mode by internal jumpers for each RJ-45 port

One frequently-used application for the Magnum Quad-Switch copper ports is

t one of them using a fiber media converter to another Switch in the network

..

dia

31

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

converters mostly do not support auto-negotiation properly, and require that the switched
port to which they are connected be at 100Mb fixed speed. Attachment to 10/100 auto­negotiation ports typically will not work properly. The Quad-Switch’s RJ-45 ports
handle this situation by changing the internal jumper settings. (see S

When Quad-Switch’s RJ-45 copper ports are set for auto-negotiation and

connected to an another auto-negotiating device, there are 4 different speed and F/H
modes selection depending on what the other device supports. These are: (1) 10
full-duplex, (2) 100Mb half-duplex, (3) 10 Mb full-duplex and (4) 10 Mb half-duplex.

The auto-negotiation logic will attempt to operate in descending order and will norma
arrive at the
negotiati

highest order mode that both devices can support at that time. (Since auto-

on is potentially an externally-controlled process, the original “highest order
mode” result can change at any time depending on network changes that may occur). I
the device at the other end is not an auto-negotiating device, the Quad-Switch’s RJ-45
ports will try to detect its idle signal to determine 10 or 100 speed, and will default to
half-duplex at that speed per the IEEE standard.

General information -

Auto-negotiation per-port for 802.3u-compliant switches occurs when:

the devices at both ends of the cable are capable of operation at either 10
Mb or 100Mb speed and/or in full- or half-duplex mode, and can
send/receive auto-negotiation pulses, and . . .

ection 3.4)

0Mb

lly

f

-- when the second of the two connected devices is powered up*, i.e.,
when LINK is established for a port, or

-- when LINK is re-established on a port after being lost temporarily.

 NOTE – some NIC cards only auto-negotiate when the computer system

that they are in is powered up. These are exceptions to the “negotiate at
LINK – enabled” rule above, but may be occasionally encountered.

When operating in 100Mb half-duplex mode, cable distances and hop-counts
may be limited within tha
account f s

or all devices and cable lengths within that domain. For Magnum Quad-Serie

t collision domain. The Path Delay Value (PDV) bit-times must

Fast Ethernet switched ports operating at 100Mb half-duplex, the bit time delay is 50BT.

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32

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

4.5 Auto-negotiation for 10 Mb ports, half- or full-duplex mode

Full-duplex Ethernet provides separate Transmit and Receive data paths,
enabling sim ovements on a port. The
network t , the
cabl ist

e d ance is only limited by the physical layer line driver and cable attenuation.

The re

re a no collision-domain restrictions or limitations.

negotiation independently on all switched ports. If the device or node on the other end of
a port’s a
duplex, the Magnum Quad-Port Switch will negotiate to run full-duplex. If the attached
device or node doesn’t support F/H mode auto-negotiation (for example, if it is a 10 Mb
repeater or a standard 10 Mb hub), the Quad-Switch’s RJ-45 ports will default to operate
at half-duplex.

.6 Flow-control, IEEE 802.3x standard

4

Duplex mode. The purpose of flow-control is to reduce the risk of data loss if a lo
burst ctivity causes the switch to save frames until its buffer memory is full. T
most likely he
speed difference makes the 10Mb port unable to keep up. It can also occur when mu
100Mb ports are attempting to transmit to one 100Mb port, and in other protracted heav
traffic situations.

blocking) on F
to the sender when the packet buffer is nearly filled and there is danger of lost packets.
The transmitting device is commanded to stop transmitting into the Quad-switch port for
sufficient time to let the Switch reduce the buffer space used. When the available free­buffer queue increases, the Switch will send a “RESUME" packet to indicate the
transmitter to start sending the packets. Of course, the transmitting device must also
support the 802.
normal operation.

back-pre

ultaneous bi-directional collision-free data m

opology must be a “star” type, not a “bus” type. With full-duplex mode

The Magnum Quad-Series Switches perform half- or full-duplex mode auto

ttached cable supports F/H mode auto-negotiation or is set to operate as full-

Magnum Q- Series Switches incorporate a flow-control mechanism for Full-

ng

of a his is

to occur when data is moving from a 100Mb port to a 10 Mb port, and t

ltiple

Magnum Q-Series Fiber Switches impl

ull-Duplex ports, which provides for a “PAUSE” packet to be transmitted

3x flow control standard in order to communicate properly during

Note: When in Half-Duplex mode, the

ement the 802.3x flow control (non-

quad-switch implements a

ssure algorithm on 10/100 Mb ports for flow control. That is, the

switch prevents frames from entering the device by forcing a collision indica
on the half-duplex ports that are receiving. This temporary “collision” delay
allows the available buffer space to improve, as the switch catches up with the
traffic flow.

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Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

4.7 Power Budget Calculations for Quad-Series QPM’s with Fiber

Receiver Sensitivity and Transmitter Power are the parameters necessary to

compute the power budget. To calculate the power budget of different fiber media
installations using Magnum products, the following equations should be used:
OPB (Optical Power Budget) = P
where P

Worst case OPB
Wors
where the “Cable Loss” for 62.5/125 and 50/125
and the “Cable Loss” for 100/140 (Multi-mode) is 3.3 dB/km,
and the “Cable Loss” for 9/125 (Single-mode) is 0.5 dB/km

The following data has been collected from component manufacturer’s (Agilent’s and
Siemens’) web sites and catalogs to provide guidance to network designers and installers.

Fiber

Port

M

QPM

FST

QPM-

ST, MSC

M

Q

PM-SSC

QPM­MTRJ

QPM­M

* The use of either multi-mode or single-mode fiber to operate a Note: t 100Mbps speed

Media

(min) - PR(min)

T

= Transmitter Output Power, and PR = Receiver Sensitivity

T

= OPB - 1dB(for LED aging) - 1dB(for insertion loss)

t case distance = {Worst case OPB, in dB} / [Cable Loss, in dB/Km]

m

(M.m) is 2.8 dB/km,

X’mitr

Cable

Size



m

100/140

50/125

50/125

50/125 -23.5 -31 5.5 2.0 12.2

R’cvr

Worst

Output

Sens.

P

dB

P

T ,

-15.0

-9.5

-19.5

-20

-23.5

dB

R ,

-31

-31

-31

-31

-31

-31 14 28 17.5 35

OPB,

dB

14

19.5

9.5

9.0

5.5

Worst*
distance
Km, fdx

5

5.9

3.4

2.5

2.0

e fiber link must be greater than the iber cable’s

odule

10-

V45

Speed,

Std.

10 Mb

FL

100Mb

FX

100Mb

FX

100Mb

FX

100Mb

FX

Mode

Multi- 2

ode (2)

m

Multi-

mode2 (0.4)

Single- 18+

mode (0.4)

Multi- 2

mode (0.4)

Multi-

mode

Std.

Wave

km

-

fdx

length

(hdx)

nm

62.5/125

850

62.5/125

1300

1300 9/125 -15

62.5/125 -20 -31 9.0 3.0 15.8

1300

2

1300 62.5/125 -14 -31 15 5

(0.4)

over long distances (i.e., in excess of approx. 400 meters) can be achieved
if the following factors are both applied:
 The 100Mb fiber segment must operate in full-duplex (FDX) mode, i.e. the

full-duplex (factory default) setting for 100Mbps fiber ports must be used,
and

 ca P h f

Thepaworst- se O B of t

ssive Atte

(Attenuation = C s

n.

n o

uati

able lo

s L+ ED aging loss + Insertion loss + safety factor)

typical

typical*

OPB,

distance

dB

Km, fdx

17

23.5

13.5

14
12

16 5.7

only

6
7

4.8

5
4

5.5

4.0

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34

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

5.0 INTRDODUC
MO (QP )

ULES

This chapter cri s each Quad-P rt Mo ule ( PM) clud appea ce,

functionality, and status display

.1 5

Inspecting the Package and Product

This section applies only to QPMs shipped as separate items, i.e., QPMs not
factory installed in a Magnum Quad-Series QPM slot.

TION - M ES AD RT

AGNUM QUAD-SERI QU -PO

M

des be o d Q , in ing ran

s.

installing a QPM; notify the carrier of any damage which you believe occurred

uring shipment or delivery. Inspect the contents of this package for any signs

d
of damage and ensure that the items listed below are included.

Remove the QPM(s) from the shipping container. Be sure to keep the

5.2

This package should contain:

s r

hipping container should you need to ship any of the QPMs separately at a late

d ssing or damaged contact your supplier. If

ate. In the event there are items mi

y inal shipping container if possible. Refer

ou need to return the unit, use the orig

t

o Chapter 5 for specific return procedures.

Product Description

Port Modules (QPMs) for flexible mixed-media connectivity to RJ-45 and fiber
media. Since the Magnum Quad-Series Switches have dual-speed capability for
copper ports, the quad-port interfaces are designed to support all standard
Ethernet media types at 10 or 100Mps speed. Each QPM provides four ports
for connecting Ethernet segm

Examine the shipping container for obvious damage prior to

1 or more QPMs
Installation instructions, with illustrations

An important feature of the Magnum Quad-S

ents with its individual connector type and media.

eries is the use of Quad-

For a list of Quad-Port Module ty
Each QPM is individually described in the following sections.

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pes, refer to Section 1.2

35

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

5.2.1 QPM-MST, 100Mb multi-mode FX-ST Quad-port Module, “twist
lock”

The Magnum QPM-MST is a multi-mode 100Mbps fiber optic quad-port

module equipped with dual ST-type
connectors. It functions as a fiber optic
transceiver to support 100BASE-FX
network segments. W
Quad-Ser

ies Fiber Switch, it supports

hen installed in a

fiber optic cable distances up the IEEE­standard
typically

100Mbps distance limits, i.e.,

2km at full-duplex and 412m

at half-duplex.

Each port has

Link (LK) LED tha and a

an Activity (ACT) LED indicating packets being received, a

t indicates proper connectivity with the remote device when lit,

100BASE-FX, and 10BASE-FL

ST Connectors

3

FDX/HDX

LK

1
2
3
4

1

ACTIVITY

2

1 2 3 4

FULL/HALF

3

DUPLEX MODE

1

ACT

2

LINK

FDX/HDX LED to indicate full-duplex mode when lit (or half-duplex when off).
Lettering on the front of the module identifies it as “100 FX” to avoid confusion with

ther simi

o lar-looking 10 Mb fiber QPMs.

5.2.1a QPM10-MST, 10 Mbps

The Magnum QPM10-MST is a multi
dual ST-type connectors. It looks simila
“10 Mb” on the front to distinguish it.
IEEE-standard 10 Mbps distance limits,

mul

ti-mode FL-ST-Quad-port type, “twist-lock”

-mode 10 Mbps fiber optic module equipped with
r to the 100Mb QPM-MST, but has the lettering

It supports fiber optic cable distances up the

i.e., typically 2km at full-duplex and at half-

duplex.

Each port has an Activity (AC

Link (LK) LED

that indicates proper connectivity with the remote device when lit, and a

T) LED indicating packets being received, a

FDX/HDX LED to indicate full-duplex mode when lit (or half-duplex when off).
Lettering on the front of the module identifies it as “10 FL” to avoid confusion with other
similar-looking 100Mb fiber QPMs.

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36

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

5.2.2 QPM-MSC 100Mbps multi-mode FX-SC Quad-port, “snap-in”
connector

The Magnum QPM-MSC is a multi-

mode 100Mbps fiber optic transceiver m
similar to the QPM-MST. It has the same LEDs
indicating port activity (ACT), Link (LK), and
FDX or HDX operation, and the same face-plate
lettering.

While the functionality

es

modul is essentially the same, the QPM-MSC is equipped with an SC-type "snap-in"
connector

instead of an ST-type.

5.2.3 QPM-SSC 100Mbps single-mod FX-SC-type, “snap-in” connector

The Magnum QPM-SSC is a
single-mode 100Mbps fiber optic
module equipped with a dual SC-type
connector.

It functions as a fib
transceiver to the Quad-Switches,
supporting four single-mode fiber
network segments.

The QPM-SSC, when installed

agn

in a M um Quad-Series Fiber Switch
operating at 100Mbps full-duplex,
supports single-mode fiber cable lengt
Section 4.5)

er optic

odule,

of these two

e

100BASE-FX Single-Mode

SC Connectors

3

FDX/HDX

1
2
3
4

1

hs of as much as 25+ Km (see Power Budget,

100BASE-FX Multi-Mode

3

FDX/HDX

1

1 2 3 4

LK

ACT

ACTIVITY

FULL/HALF

3

DUPLEX MODE

SC Connectors

2

1 2 3 4

LK

1

ACT

2
3

4

4

ACTIVITY

FULL/HALF

3

DUPLEX MODE

2

ACT

2

LINK

1

ACT

2

LINK

1

Each port has an Activity
Link (LK) LED that indicates prop
FDX/HDX LED to i
distinguis om the multi-mode QPM-MSC, the label “Sgl.

h the single-mode QPM-SSC fr

ndicate full-duplex mode when lit (or half-duplex when off). To

M.” is at the top of the faceplate of the Q

(ACT) LED indicating packets being received, a

er connectivity with the remote device when lit, and a

PM-SSC.

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37

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

5.2.4 QPM-MTRJ, 100Mb multi-mode FX Quad-Port, MTRJ small-

form-factor

Magnum QPM-MTRJ is a multi­mode fiber optic quad-port module equipped
with a small-form-factor MTRJ-type
connector. It looks almost like an RJ-45
port, but it is black in color. The MT-RJ’s

iz

small s e and ease of connection make it a
good choice for 100Mbps “fiber-to-the­desktop” Ethernet connectivity. When
installed in a Quad-Series Fiber Switch, it
supports fiber optic cable distances up
IEEE-standard 100Mbps distance limits,
typically 2km at full-duplex and 412m at h

100BASE-FX MTRJ

the

i.e.,

3

alf-duplex.

Connectors

2

1 2 3 4

FDX/HDX

1

LK

2
3
4

ACTIVITY

1

3

FULL/HALF
DUPLEX MODE

2

“small-form-factor”

1

ACT

LINK

The functionality of this 100BAS
same as the ST and SC-types. It has the
(ACT), Link (LK), and FDX or HDX oper
the faceplate. Note that the other end of th

E-FX multi-mode QPM is essentially the

same LEDs per port indicating port activity

ation. It has the same “100Mb FX” lettering on

e fiber cable may have a different connector,

not necessarily an MT-RJ type.

5.2.5 QPM-MV45, 100Mbps multi-mode FX

form factor

Magnum QPM-MV45 is a quad-port multi-mode fiber FX “small-form-fac

Quad-Port VF45 small-

tor”
VF-45 connector used primarily in 100Mbps fiber-to-the-desktop links. Its size is similar
to the MT-RJ port, but the VF-45 shell is slightly larger. When not in use, its appearance
is distinctive because it has a tin

y hinged

door over the port hole to act as a dust
cover.

When installed in a Quad-

Series Fiber Switch, it supports fiber

3

100BASE-FX MV45

Connectors

2

FDX/HDX

1

LK

2
3
4

1

ACT

optic cable distances up the IEEE­standard 100Mbps distance limits, i.e.,
typically 2km at full-duplex and 412m at
half-duplex.

ACTIVITY

1

3

FULL/HALF
DUPLEX MODE

2

LINK

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38

“small-form-factor”

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

The small size of the VF-45, about the same as an RJ-45 port, reduces the size
of wiring panels in wiring closets while pr
optic technology

.

The cable end is a “plug-in” connector, with both fiber strands terminated in
one housing that cannot be improperly inserted. Each port has an Activity (ACT) LED
indicating packets being received, a Link (
with the remote device when lit, and a
when lit (or half-duplex when off).

5.2.6 QPM-RJ45 (Twisted Pair

The QPM-RJ45 module
supports Ethe
segments of any standard length. It is
equipped with a four-port RJ-45
connector, and offers 10/100 full /
half-duplex auto-negotiating
capability
connector is shielded to minimize
emissions and will allow both
unshielded twisted pair (UTP) and shielded twisted pair (STP) cable connections.

rnet twisted pair

on each port. The RJ-45

oviding the advantage of “future-proof” fiber

LK) LED that indicates proper connectivity

FDX/HDX LED to indicate full-duplex mode

), 10/100Mb TP Quad-Port

10/100BASE-T, Quad Port

RJ-45 Connectors

1

ACT

3

4

SPEED

Cross-Over

Push Switch

1

x

LK

100/10

ACTIVITY

3

2

1 2 3 4

FDX/HDX

4

2

FULL/HALF
DUPLEX MODE

LINK

The QPM-RJ45 quad-port

module is equipped with a Media Dependent

Interface-Crossover (MDI-X) push-button to allow for one cascaded connection. This

eature eliminates the need for a special twisted pair crossover cable when connecting to

f

hub or another switch.

a
With the push-button in the IN (X) position, the left-most RJ-45 port is used for

cascaded and up-link connections (i.e.: a connection to another hub or switch typically).
When used for segments going to workstations and other user node device connections,
the MDI-X push-button should be in the OUT (=) position.

Each port has an Activity (ACT) LED indicating packets being received, a
Link (LK) LED that indicates proper connectivity with the remote device when lit, a

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39

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

FDX/HDX LED to indicate full-duplex mode when lit (or half-duplex when off), and a
“s

peed” LED indicating 100Mb when lit (or 10 Mbps when off).

Important Note:

For the QPM-RJ45 Crossover Push-button -

kstations and user node connections. OUT for wor

connections to other hubs, switches, etc. IN for Up-Link

The RJ-45 pins normally
for hubs-to-users twisted pair
transmit-, other pins not used
of the RJ-45 port are per the st
transmit and the receive p
receive+, 6 = receive-, other pins

5.2.7 QPRJ-MSC, “3 + 1” 3@10/100Mb RJ-45 and 1@100Mb Fibe

(TP crossover push-button DOWN) are per the standard

wiring: 1 = receive+, 2 = receive-, 3 = transmit+, 6 =

. When the TP crossover push-button is UP, the pins

andard for up-links using twisted pair wiring, i.e., the

airs are exchanged: 1 = transmit+, 2 = transmit-, 3 =

not used.

r SC

Multi-mode Connector, “Combo” Quad-Port Module

The QPRJ-MSC “3+1
Combo” quad-port supports three auto­negotiating twisted pair ports at
10/100Mbps FDX / HDX, and one fiber
port with 100Mbps multi-mode FX SC
connector. The three RJ-45 ports on the
right operate the same as those in the
same place on the QPM-RJ45 module.

The fiber SC connector
functions as a fiber optic transceiver to support 100BASE-FX network segments. When
installed in a Quad-Series Fiber Switch, it supports fiber cable dis

andard 100Mbps distance limits, i.e., typically 2km at full-duplex and 412m at half-

st
duplex. The factor default setting is for full-duplex operation, an

y d a jumper on the

module must be moved to select half-duplex. (See Section 3.4).

10/100BASE-T and 100BASE-FX Combo

Quad-Port Connectors

2

1 2 3 4

5

LK

HDX/FDX

100/10

1

ACTIVITY

FULL/HALF

3

DUPLEX (RJ-45)

5

FULL/HALF DUPLEX(FIBER)

ACT

FDX/HDX

4

2

LINK

4

tances up the IEEE-

1

3

SPEED

Each 3+1 combo port has an Activity (ACT) LED indicating packets being
rece

ived, a Link (LK) LED that indicates proper connectivity with the remote device

whe

n lit, a FDX/HDX LED to indicate full-duplex mode when lit (or half-duplex when

off).

In addition, the RJ-45 ports have a “speed” LED indicating 100Mb when lit (or 10

Mbp

s when off). The fiber port is always 100Mbps speed.

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40

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

5.2.8 QPRJ-MST, “3 + 1” 3@10/100Mb RJ-45 and 1@100Mb Fiber ST

Multi-mode Connector, “Combo” Quad-Port Module

The Magnum QPRJ-M
QPRJ-MSC “3+1 combo” module exce
Section 5.2.1 for a description of

5.2.9 QPRJ-SSC, “3 + 1” 3@

-mode Connector,

Single

The Magnum QPRJ-SSC is also
same as the QPRJ-MSC “3+1 combo”
Section 5.2.3 for a description of the 10

ST is also a 3+1 Combo quad-port. It is the same as the

pt the multi-mode fiber port is ST-type. See

the 100Mb multi-mode-mode fiber SC-type port.

10/100Mb RJ-45 and 1@100Mb Fiber SC

“Combo” Quad-Port Module

a 3+1 Combo quad-port module. It is the

module except the fiber port is single-mode. See

0Mb single-mode fiber port.

5.2.10 QPM-FP

The QPM-FP is a blank face plate or cover plate that must be installed in any
empty QPM slots to maintain proper
cooling air flow, and for safety, etc.

Two screws underneath
the front panel hold the QPM-FP in
place.

Fig. 5.2.10 Blank Face Plate

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41

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

6.0 TROUBLESHOOTING

All Magnum Ethernet products are designed to provide reliability and
consistently high performance in all n
Quad Series Fiber Switch is a straigh

.6); the orward and is discussed in Section 4.

2 operation is also straightf

etwork environments. The installation of Magnum

tforward procedure (see INSTALLATION, Section

Should problems develop d
intended to at ify rrect these types of problems. P
suggestions listed below prior to contacting your supplier. However, if you are unsure of
the procedures described in this section or if the Magnum Quad Series Fiber Switch is
not performing as expected, do not attempt to repair the unit; instead contact your
supplier for assistance or contact GarrettCom Customer Support.

help loc e, ident and co lease follow the

uring installation or operation, this section is

6.1 Before Calling for Assistance

1. If difficulty is encountered when installing or operating the unit, refer back to
the Installation Section of the applicable chapter of this manual. Also check
to make sure that the various components of the network are interoperable.

2. Check the cables and connectors to ensure that they have been properly

connected and the cables/wires have not been crimped or in some

way impaired during installation. (About 90% of network downtime can

be attributed to wiring and connector problems.)

3. Make sure that an AC power cord is properly attached to each Magnum Quad

Series Fiber Switch unit. Be certain that each AC power cord is plugged into a

functioning electrical outlet. Use the PWR LEDs to verify each unit is

receiving power.

4. If the problem is isolated to a network device other than the Magnum Quad

Series Fiber Switch product, it is recommended that the problem device is

replaced with a known good device. Verify whether or not the problem is

corrected. If not, go to Step 5 below. If the problem is corrected, the Magnum

Quad Series Fiber Switch and its associated cables are functioning properly.

5. If the problem continues after completing Step 4 above, contact your supplier
of the Magnum Quad Series Fiber Switch unit or if unknown, contact
GarrettCom, Inc.by fax, phone or email ([e-mail]) for assistance.

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42

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

6.2 When Calling for Assistance

Please be prepared to provide the following information.

1. A complete description of the problem, including the following points:
a. The nature and duration of the problem;
b. Situations when the problem occurs;

c. The components involved in the problem;

d. Any particular application that, when used, appears to create the problem;

2. An accurate list of GarrettCom product model(s)involved, with serial
number(s). Include the date(s) that you purchased the products from your
supplier.

3. It is useful to include other network equipment models and related hardware,

including personal computers, work
various network media types being used.

4.

A record of changes that have been made to your network configuration prior
to the occurrence of the problem. Any changes to system administration

procedures should all be noted in this record.

6.3

ll returns Material Authorization
(RMA) number. To obtain an RM

https://rma.garrettcom.com/rma/rma_request_noaccount.php to fill out the form.

Please ha

Product name
Serial Number (or Invoice Number)

repair products that are under warranty at no charge, and will return the warranty­repaired units to the sender with shipping charges prepaid (see Warranty Information,
Appendix A, for complete details). However, if the problem or condition causin
return cannot be duplicated by GarrettCom, the unit will be returned as:

Return Material Authorization (RMA) Procedure

A for repair must be accompanied by a Return

A number, please use this URL -

ve the following information readily available:

Name and phone number of your contact person.
Name of your company / institution
Your shipping address

Packing List Number (or Sales Order Number)
Date of installation
Failure symptoms, including a full description of the problem.

GarrettCom will carefully test and evaluate all returned products, will

No Problem Found.

stations, terminals and printers; plus, the

g the

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43

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

GarrettCom reserves the right to ch
units er warranty. Testing and repair of p

und roduct that is not under warranty will

result in a

customer (user) charge.

arge for the testing of non-defective

6.4

please follow these
in ructio

APPENDIX

Shipping and Packaging Information

Should you need to ship the unit back to GarrettCom,

st ns:

1. Package the unit carefully. It is recommended that you use the original

container if available. Units should
sheet or bag for shipping protection. ( You may retain all connectors and
Installation Guide.)

CAUTION

material. This material may cause electro-static shock damage to the u

mark the Return Material Authorization (RMA) number on the

2. Clearly

outside of the shipping container.

3. GarrettCom is not responsible for your return shipping charges.

4. Ship the package to:

GarrettCom, Inc.
47823 Westinghouse Dr.
Fremont, CA 94539
Attn.: Customer Service

:

Do not pack the unit in Styrofoam "popcorn" type

A: WARRANTY INFORMATION

GarrettCom, Inc. warrants its products to be free from defects in materials
and workmanship for a period of three (3) years from the date of shi

rret

Ga tCom.
During this warranty period, GarrettCom will repair or, at its option,

replace components in the products that prove to be defective at no charge other
than shipping and handling, provided that the product is returned pre-paid to
Garrett

Com.

on of GarrettCom, the
produc plication, or as a result of service or
modification other than by Garr

a charge for handling and

GarrettCom reserves the right to make

inspec ch turns out not to be

ting any product returned for warranty repair whi

faulty.

Please complete the warranty card as this acts as a product registration,

and mail it to Ga

rrettCom within two weeks of your purchase.

misuse, misapt has been damaged by

ettCom.

be wrapped in a "bubble-wrap" plastic

packing

pment by

, in the opiniThis warranty will not be effective if

this

nit.

APPENDIX B: MAGNUM INTERNAL DC POWER SUPPLY OPTION

B1.0 SPECIFICATIONS - FOR MAGNUM QUAD-SERIES SWITCHES

Power Supply (Internal

-48 VDC Option)

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44

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Power Connector: 3 terminals: “-“, “GND”, “+”

DC

Input Voltage: 36 - 70 VDC

Power Supply (Internal 24 VDC Option)

DC Power Connector: 3 terminals: “-“, “GND”, “+”
Inpu

t Voltage: 20-36 VDC

er S

ow uP pply (Internal 125 or 100VDC Option)

DC Power Connector: 3 terminals: “-“, “GND”, “+”

Input V tage: “125” = 120 - 160 VDC range, “100” = 90 to 160VDC range
Surge

power spike

Power
Wit

M gnum

a Quad-Series Switches-48VDC, 24VDC, 100VDC and 125VDC models are

id tical

en to those listed in the main manual.

B2. -48V

0 DC, 24, 100, and 125VDC POWER OPTION, THEORY OF OPERATION

inside on each DC power input line behind the

hat th power fr

so t e om an external source can

flow ad-

only into the unit. This allows the Qu
Se

r i perate only whenever DC ies Sw tches to o
power is correctly applied to the two inputs.
It protects the Quad-Series Switches from
in

correct DC input connections. An incorrect

po

larity connection, for example, will neither affect the Quad-Series Switches, its
in

ternal power s
nit on
an

d off when it is placed into or taken out of service.

B

0 3. APPLICATIONS FOR DC POWERED ETHERNET SWITCHES

ions
where -48VDC, 24, 100 or 125VDC power is us

er co izing a

pow nfigurationcapability provides an Ethernet networking solution util
sp

ecial power supply in switches with a proven track record.
The –48VDC solution is particularly useful in the telecommunication industry,
w re it i clude

he s common for facilities to operate on -48VDC power. Such companies in

re Providers (ISPs) and

gular and wireless telephone service providers, Internet Service

her communication companies. In addition, many high availability equipment services,

ot
such as broadcasters, publishers, newspaper operations, brokerage firms and other

acilities often use a battery backup system to maintain operations in the event of a power f
failure. It is also frequently used for computer system backup, management and
operations monitoring equipment.

ol

Suppression: Varistors are installed inside to avoid QS internal damage from

s or excess outside electrical noise coming in on the DC power input lines

Consumption: all DC Model QS5108, QS5116: 30 watt typical,50 watts max.
h the exception of the power supply, all specifications and functions of

The -48VDC, 24, 100 and 125VDC power options are designed using diodes

two external power connection terminals,

POWER SWITCH

A+

A-

GND

upply, nor will it blow the fuse in the internal power supply.

The manual power “On-Off” Switch (optional) is used for powering the u

Magnum Quad-Series Switches are easily installed in a variety of applicat

ed as the primary power source. The DC

HUB

SUPPLY

+

-

CHASSIS

GND

FUSE

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45

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

The 24, 100 and 125VDC options are particularly useful i
where it is common for facilities to op
125VDC options are mainly used in power

erate on 24VDC or 1

utilities, such as electrical substations,

electrical generating plants, etc. The 24VDC applications ar

VAC equipment, menvironment, such as factory floor, H

B4.0 INSTALLATION

This section describes the
installation of the -48VDC, 24, 100 and

5VDC power source leads to the DC 12

ower terminal block on the Magnum

p
Quad-Series Switches. (see figure at the
right with –48VDC power as example).

Figure B4.1: -48VDC Terminal Block on

Magnum Quad-Series Switches -48VDC

In this picture, the -48VDC terminal block on the Magnum Quad-Series Switch
is located on the rear of the unit and is equipped with three (3) screw-down lead posts. It
is similar for 24, 100 and 125VDC options on the Quad-Series Switch. The leads are
identified as negative (-), positive (+), and chassis ground (GND).
The actual connection procedure is v
leads to the Magnum unit, beginning with grou

ery straightforward. Simply connect the

nd. Ensure that each lead is securely

tightened.

Note: The GND should be hooked up first.
ground, so the user may elect to Ground eith

The Quad-Series Switch unit has a floating

er + or = terminal to suit the customer’s
use.
Before connecting hot lines to the Terminal Block of –48VDC, 24,
125VDC, always use a digital voltmeter

to measure the output voltage of the power
supply and determine the lead which is more “+ve potential”. The more “+ve” voltage
lead from the DC supply must be connected to the post labeled “+”.

An ON-OFF manual switch is optional for DC power. This can be used to cut
off power connections, and as a RESET for the switch.

B4.1 UL Requirements

1. Minimum 14 AWG cable for connection to a Centralized DC power sourc

2. Fastening torque of the lugs on the terminal block: 9 inch pound max.

3. Centralized DC Power Source cable securement, use at least four cable ties to

secure the cable to the rack at least 4 inches apart with the first one located
within 6 inches of the terminal block.

B5.0 OPERATION
Operation of the Magnum Quad-Series Switch with the optional -48VDC, 24V,

100 and 125VDC power supply is identical to that of the AC-powered models.

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n the Industrial environment,

25VDC power. The 100 and

e mainly in the Industrial

ilitary equipment, etc.

_

GND

+

ON
OFF

36-70VDC

100 or

e.

46

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

B6.0 ORDERING INFORMATION
To order the optional –48VDC power supply factory installed, add a suffix of
“-48VDC” after the product’s standard model # Example: Magnum QS5116-48VDC.
Similarly, to order the optional 24VDC, 100VDC, or 125VDC industrial po

supply for factory installation and test, add a suffix of “–24VDC or “-100VDC” or “

25VDC” after the product’s standard model #. Example: Magnum QS5108-24VDC or

1

Magnum QS5116-125VDC.

B7.0 TROUBLESHOOTING

Please refer to Section 6.0

wer
–

APPENDIX C: MAGNUM INTERNAL DC DUAL-SOURCE POWER
OPTION

C1.0 SPECIFICATIONS - FOR MAG

ower Supply (Internal, -48VDC Dual-Source, model # Dual-Src48V)

P

GND: Terminal for “earth” or ground wire connection to the switch chassis
Input: Two separate sources, each at 36 - 70 VDC
Power Consumption: Model QS5108 & QS5116 :30 watt typical, 50 watts m

DC Power Connector: First Source: “A+”, “A
GND: Terminal for “earth” or ground wire connection to the switch chassis

Power Consumption: Model QS5108 & QS5116 : 30 watt typical, 50 watts ma

DC Power Connector: First Source: “A+”, “A

GND: Terminal for “earth” or ground wire connection to the switch chassis
Input: Two separate sources, each at 100 (90 to 160V) or 120 - 160 V rang
Power Consumption: Model QS5108 & QS5116: 30 watt typical, 50 watts max.

supply, all specifications and configuration options for the Magnum QS5116-48VDC,
QS5116-24VDC, QS5116-100VDC, and QS5116-125V
are iden cal to those listed in t

Use i

C2.

­Sou e p ns where a battery plant is the power

operational uptime and to

DC Power Connector: First Source: “A+”, “A

Power Supply (Internal, 24VDC Dual-Source, model # Dual-Src24V)

Input: Two separate sources, each at 20 - 36 VDC

Power Supply (Internal, 100 and 125VDC Dual-Source, model # Dual-Src1xxV)

With the exception of the dual DC input power connections and the power

ti he Magnum Quad-Series Fiber Switch Installation and

r Gu de, including Appendix B “Internal DC Power Supply Option”

0 QUAD-SERIES with -48VDC, 24, 100, and 125VDC Dual-Source option

The QS switch models with the internal -48VDC, 24, 100 and 125VDC Dual

ower supply are designed for installatiorc

our , and where two separate power sources are utilized in order to increase

ces

simplify maintenance.

NUM QUAD-SERIES FIBER SWITCHES

-“

, 2nd Source “B-“, “B+”

ax.

-“

, 2nd Source “B-“, “B+”

-“

, 2nd Source “B-“, “B+”

e

DC with this Dual-Source option

x.

The functionality of the Magnum Quad-Series Switches -48VDC, 24, 100 or

125VDC Dual-Source Option switches are identical to the standard AC-powered m

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47

odels.

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

All Port Module options are available for config
Refer to the m

ain sections of this Installation and User Guide for a detailed description

of the Magnum Quad-Series Switches.

uration with Dual-Source Option units.

C3.0

DUAL-SOURCE OPTION, THEORY OF OPERATION

The Dual-Source DC power option is designed using diodes inside of the
switch on each DC power input line. A

our

diode is placed in each of the f

lines (behind the four external pow
conne n terminals) so that power

ctio

input

er

from an external source can only flow

into the switch. This allows the switch
to operate wh

enever DC power is

correctly applied to either or both of the two inputs

A+
A­B-

B+

GND

HUB

SUPPLY

+

FUSE

-

CHASSIS

GND

.

C4.0 FEATURES AND BENEFITS OF THE DUAL-SOURCE DESIGN

a) The switch can receive power from either input, “A” or “ ”. The switch will normB ally dr

pow

er from the DC source with the highest voltage at a given time.

b) The

c) When one correct DC input is present, the switch will receive power if the other DC input is

e

switc

h

will not allow power to flow from a higher voltage input to a lower voltage inpu

i.e. h.

the two DC power sources are not mixed together by the switc

absent, or even if it is connected with reverse polarity or shorted or grounded.

) amage

Reverse polarity connections, if they should accidentally cur on either inpu wild oc t, l not d

the )

switch or power supply internally (nor will it blow the fuse in the internal power supply

bec

ause of the blocking action of the diodes. This is true even if one input connection is

rev

ersed while the switch is operating from the other source.

)

The

switch will not receive power (and will not work) when both inputs are simultaneously

absent or are both incorrectly connected.

aw its

C5.0 INSTALLATION

This section describes the proper connection of the -48VDC, 24, 100 and
125VDC dual source leads to the DC power terminal block on the Magnum Quad-Series
Switch (shown in Figure C4.0 with 48v input as example).
he –48VDC terminal block on the Magnum Quad-Series Switch is located on
the right ure

T

rear of the unit and is equipped with five (5) screw-down lead posts (see Fig
C5.0). The primary terminals are identified as positive (A+), negative (A-), and the
secondary power terminals as negative (B-), positive (B+). The chassis “earth” or ground
(GND), is a threaded post with a #6 nut. The dual source terminal block for 24, 100
and 125VDC are similar.

A+ A- B- B+

Figure C5.0: DC Dual Source, wiring connection to the external Termin
on a Magnum QS5116 48VDC wih Dual-Source option

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36-70VDC

36-70VDC

GND

al Block

48

t,

Magnum Quad-Series Fiber Switches Installation and User Guide (06/03)

Note: The GND should be hooked up first. The Quad-Series Switch unit has

a floating ground, so the user may elect to Ground either + or = terminal to suit the
customer’s use.

Before connecting to Terminal Block of –48VDC, 24, 100 or 125VDC,

s ualway se a digital voltmeter

eter

min om

d e the lead which is more “+ve potential”. The more “+ve” voltage lead fr
48V or –48V supply must be connected to the post labeled “+”.

The connection procedure is
the switch’s power terminals, positiv
(GND) is optional; it connects to the sw
tightened.

C5.1 UL Requirem e nts
The following must be adhered to in order to conform to UL requiremen

C6.0 ORDERING INFORMATION

Example: Magnum QS5116-48VDC
Dual-Src48V
or Dual-Src

Similarly to order “Dual-Src24V” or “Dual-Src100V” or “Dual-Src125V” as a

Example: Magnum QS5108-24VDC or Magnum QS5116-125VDC
Dual-Src48V for regular model with no ON-OFF switch
or Dual-Src48V-SWITCH for model with ON-OFF switch

C7.0 OPERATION

Operation of the al-So

nd 125VDC models are identical to that of the standard models. Please refer to the

a

pplicable sections of the “Installation and User Guide” for more information on the

a

asic switches.

b

Minimum 14 AWG cable for connection to a Centralized DC power source. 1.

2. Fastening torque of the lugs on the terminal block: 9 inch pound max.

3. Centralized DC Power Source cable securement, use at least four cable ties to

secure the cable to the rack at least 4
within 6 inches of the terminal block.

To order the optional Dual-Source
order “Dual-Src-48V” as a separate , line item following the product model.

separate line item following the product model.

to measure the output voltage of the pow

straightforward. Simply connect the DC leads to

e (+) and negative (-) screws. The use of Ground

itch chassis. Ensure that each lead is securely

inches apart with the first one located

-48VDC power supply factory installed

for regular model with no ON-OFF switch

48V-SWITCH for model with ON-OFF switch

Du urce Magnum Quad-Series Switch-48VDC, 24, 100

er supply and

ts:

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