Corporate Headquarters Magnum ESD42 Dual-Homing Edge ...

ESD42 Dual-Homing Edge Switch

3.2 MC14-TRAY for Rack Mounting ESD
For 19” rack-

mounting of Magnum ESD42
Dual-Homing Edge Switches,
a rack-mount tray is available,
the MC14-TRAY. The Edge
Switches are mounted with the
DC power jack in the back,
with the fiber and the RJ-45
connectors in the front. Any
mix of the Edge Switches and/or Media Edge
of 8 units. (The mounting spaces of the MC1
and will not permit other models to be proper

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Installation and User Guide

D42 Dual-Homing Switches

es may be placed on a tray, up to a maximum
14-TRAY are specific to the Magnum products
rly mounted).

2

ESD42 Dual-Homing Edge Switch

In a typical installation, the MC14-TRAY, 19
eight) ESD42 Dual-Homing Edge Switches, w
strips (not included) in the rear area of the tra
hold the Edge Switches firmly in place. The b
of each unit to be viewed for operational statu
together.

3.3 MC14-TR+PS9 and MC14-TR+PS9X
The MC14-TR+ PS9 and MC1

mounting the mix of Magnum 10Mbps and 1
together in a 19” rack-mount tray. These mod
power supply rated at 55 watts at 50°C ambie
Switches for MC14-TR+PS9 and 5 units ESD
The MC14-TR+PS9X2 Model has two grou
supplies have auto-ranging AC input for use

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9” rack-mount tray will hold a few (three to
with their power supplies plugged into power
ay. Metal mounting screws in the bottom-front
beveled-top edge of the units permits the LEDs
us, even when the units are very close

X2 for Rack Mounting
14-TR+PS9X2 are other options for rack
100Mbps Edge Switches and Media Edges
dels come with built-in common universal AC
ent,9VDC output, and supporting up to 2-3
D42 Dual-Homing for MC14-TR+PS9X2.
ups of eight units per power supply. The power
worldwide.

3

ESD42 Dual-Homing Edge Switch

The side-view is an example of an
installation of the model MC14-
TR+PS9, 19” rack-mount tray, holding
a few ESD42 , and 14E Media Edges,
each with their power input plugged
into the built-in common AC power
supply in the rear area of the tray. (AC
PS units that come with the office
models of the Edge Switch’s are not
used). Because of the thicker size, only
eight ESD42 units can fit in one MC14-
TRAY.

Metal mounting screws in
the bottom-front hold each of the Edge Switc
separate removal for service. The dual LEDs
any angle.

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Installation and User Guide

ches, securing them in the tray and enabling
permit viewing of Edge Switch status from

4

ESD42 Dual-Homing Edge Switch

3.4 DIN-Rail mounting option
The Magnum ESD42H and ESD42

Floor” Industrial Ethernet environments, are
enclosure having DIN Rails

A Magnum ESD42H is shown
alongside the DIN-Rail-MC2 bracket
here ->

The metal DIN-Rail mounting
hardware is optional and needs to be
ordered as a separate item, e.g. Model
#DIN-RAIL-MC2. It comes with four
screws to attach the bracket to the MC
unit. The Magnum ESD42 models with
“HR” have 24VDC power, and have the
DIN-Rail-MC2 bracket included and
assembled with the MC unit at the factory.

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2P Edge Switches, designed for use in “Factory
available for DIN-Rail mounting in an

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ESD42 Dual-Homing Edge Switch

3.5 Power Requirements for ESD42 Dual
Magnum ESD42 Dual-Homing Switches are
AC power supply. Magnum ESD42 Dual-Ho
The extended temperature (H and P) versions
applications.

The 12V DC power input jack has a plug of 2
center +ve , with 6 ft. cord. All the AC power
info detail is provided in Technical Specs Sec

The ESD42 Dual-Homing are designed to be
with UL listed Class II power supplies.

ESD42H or P with 12VDC/ 24VDC/ -48VD

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l-Homing Switches
e power-efficient and can work with an external
oming require a nominal 12VDC input version.
s are used for heavy duty industrial

2.5mm,
r supply
ction 1.1.
e used

DC

6

ESD42 Dual-Homing Edge Switch

The ESD42 Dual Homing Edge Switches pro
temperature environments, and provide the D
uncontrolled temperature environments.

The Direct DC (Internal) 12V DC (8 – 15V D
ground. The 9VDC jack is also present. Deta
and the –48VDC is provided in the Technical

The various models of DC power type and ex
are numerous and your choice needs to be ca

Note: When connected to a -48 V centralized
only in Restricted Access Areas (dedicated eq

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Installation and User Guide

ovide reliable operation, withstand higher
DC power choices to the user to deploy in

DC) has a built-in terminal block for +, -,
ail information about the 12 VDC, the 24V DC
l Specifications Section 1.1.
xtended ambient temperature power supplies
alled out on your order.
d dc source these products are to be installed
quipment rooms, electrical closets or the like).

7

ESD42 Dual-Homing Edge Switch

3.6 Powering the ESD42 with 12V, 24V or
Each Magnum ESD42H/ESD42P-S

is equipped with an internal DC power supply
and has built-in screw terminals for secure
attachment of the power input leads. Three D
power models support a range of power input
types. The three DC power input terminal blo
choices are for use with 12VDC, 24VDC or -
48VDC power. Where an AC power adaptor
used, DC is supplied via the jack. Power inpu
both may be connected simultaneously for po

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Installation and User Guide

r –48VDC power input
Series
y,

DC
t
ock
-
r is
ut from the DC terminal block and the jack and
ower input redundancy.

8

ESD42 Dual-Homing Edge Switch

Note: The ESD42H or P models with 24VDC
support the Dual Source 24V input option. An
external Dual-SRC-24KIT (SHOWN AT
RIGHT…and sold separately, or a customer-
supplied equivalent) can be used to input
24VDC power to the ES4H or P unit via the
jack. This is for 24VDC models only.

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Installation and User Guide

C
n
-

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ESD42 Dual-Homing Edge Switch

3.6 continued…., DC Power Terminals

GND: Terminal for “earth” or ground

Input Voltage: 12VDC

Alarm 24VDC
Contact (10-36VDC)
Terminal

12VDC
(8-15VDC)

(12V) (12V or 24V)
(8-15VDC) (10-30VDC)

Input current: 0.8 amp.(12V DC)

0.4 amp max.(24V DC

0.2 amp max.(-48V D

Power Consumption: 7 watts typical, 9 wat

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Installation and User Guide

s: “+”, “-”, gnd

wire connection to the ESD42 H chassis

24VDC -48VDC

-48VDC
(30-60VDC)

(12V)
(8-15VDC)

C)
DC)
tts max.

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ESD42 Dual-Homing Edge Switch

3.7 ESD42 Series, DC-powered, 12V, 24V
This section describes the proper co

of the -48VDC leads (or 24VDC, 12VDC lea
DC power terminal block on the Magnum ES
Edge Switch (as shown in the Figure). The D
block on the Magnum ESD42H is located on
side of the unit and is equipped with three (3)
down lead posts. The power terminals are ide
positive (+) and negative (-), and they are flo
the unit so that either of the terminals may be
by the user if desired. The chassis is “earth”
(GND). The connection procedure is straightf

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Installation and User Guide

V and -48VDC Installation
onnection
ads) to the
SD42H
DC terminal
n the left
) screw-
entified as
oating inside
e grounded
or ground
forward.

1

ESD42 Dual-Homing Edge Switch

Simply insert the DC leads to the ESD42H’s
screws. The use of Ground (GND) optional; i
each lead is securely tightened from the top, a

NOTE: Always use a voltmeter to measure
and figure out the +ve potential lead or -ve p
will connect to the post labeled “+ve” and th
The GND can be hooked up at the last.
When power is applied correctly, the green P

3.8 Connecting Ethernet Media
The Magnum ESD42 Dual-Homing

types i.e. fiber and copper (RJ-45) types, runt
FX only. CAT 5 cables should be used when

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Installation and User Guide

power terminals, positive (+) and negative (-)
it connects to the ESD42H chassis. Ensure that
as shown on above picture with arrow.
e the voltage of the incoming power supply
potential lead. The more +ve potential lead
he rest to the “-ve”.

PWR LED will illuminate.

gEdge Switches can be connected to two media
t at 100BASE-TX, 10BASE-T and 100BASE-
n making 100BASE-TX connections. When the

2

ESD42 Dual-Homing Edge Switch

ports are used as 10BASE-T ports, CAT 3 ma

distance for unshielded twisted pair cabling i

FL or 100BASE-FX multi-mode, 50/125 or 6

for single-mode, 9/125 microns cabling shoul

cable distance and higher bandwidths as com

Media I

Twisted Pair (CAT 3 or 5)

Twisted Pair (CAT 5)

Fiber (Multi-mode)

Fiber (Single-mode)

Fiber (Multi-mode)

NOTE : It is recommended that high qualit
and 100Mbps) be used whenever po
mixed-speed network, since ESD42
either 10 and 100Mbps. Note that
port is fixed or not supporting auto

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Installation and User Guide

ay be used. In either case, the maximum

is 100 meters (328 ft). For fiber port 10BASE-

62.5/125 microns cabling can be used, whereas

ld be used. Fiber cabling supports much longer

mpared to copper wiring.

IEEE Standard Connector

10BASE-T RJ-45

100BASE-TX RJ-45

100BASE-FX ST, SC

100BASE-FX SC, LC

100BASE-FX MTRJ

ty CAT. 5 cables (which work for both 10 Mbps
ossible in order to provide flexibility in a
2 -series switch ports are auto-sensing for
the auto-cross function does not operate, if the
o-negotiation.

3

ESD42 Dual-Homing Edge Switch

3.8.1 Connecting Twisted Pair (RJ-
Shielded)

The following procedure describes

twisted pair segment to the RJ-45 port. The p

shielded twisted pair cables.

1. Using standard twisted pair media, ins
into the RJ-45 connector of the port. N
shielded, either unshielded or shielded

2. Connect the other end of the cable to
3. Use the LINK LED to ensure proper c

illuminated when the unit is powered
does not help, ensure that the cable is
other end is powered and is not defect
4. For Port # 1 or 1SW, if the LINK LED
has a cross-over or up-link for linking

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-45, CAT 3 or CAT 5, Unshielded or

how to connect a 10BASE-T or 100BASE-TX
procedure is the same for both unshielded and

sert either end of the cable with a RJ-45 plug
Note that, even though the connector is
d cables and wiring may be used.
the corresponding device.
connectivity by noting that the LED will be
and proper connection is established. If this
s connected properly and that the device on the
tive.
D is not illuminated, move the switch which
g to another hub or Switch.

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ESD42 Dual-Homing Edge Switch

3.8.2 Connecting Fiber Optic ST-ty

The following procedure applies to in
This procedure applies to ports using

1. Before connecting the fiber optic cabl
tips of the fiber connectors. Save thes

2. Wipe clean the ends of the dual conne
dampened in alcohol. Make certain th
Note: One strand of the duplex
at regular intervals; you must use
ports at each end of the fiber optic

3. Connect the Transmit (TX) port (light
the Receive (RX) port of the remote d
the cable for this first TX-to-RX conn

4. Connect the Receive (RX) port (dark
remote device. Use the non-color cod

5. The LINK LED on the front of the fib

connection has been established at bo
LINK is not lit after cable connection

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Installation and User Guide
ype, “twist-lock”

nstallations using ST-type fiber connectors.
multi-mode ST fiber connectors.
le, remove the protective dust caps from the
se dust caps for future use.
ectors with a soft cloth or lint-free lens tissue
he connectors are clean before connecting.
x fiber optic cable is coded using color bands
the color-coded strand on the associated
c segment.
t colored post) on the Magnum Fiber port to
device. Begin with the color-coded strand of
nection.
colored post) to the Transmit (TX) port of the

ded fiber strand for this.
ber connector will illuminate when a proper
oth ends (and when power is ON in the unit). If
n, the normal cause is improper cable polarity.

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ESD42 Dual-Homing Edge Switch

Swap the fiber cables at the fiber conn

3.8.3 Connecting Fiber Optic SC-ty

The following procedure applies to
connectors, i.e., using multi-mode S
fiber media to SC connectors, simp
into the SC female jacks of the Fibe

3.8.4 Connecting Single-Mode Fibe

When using single-mode fiber cabl
connectors. Single-mode fiber cab
fiber cable (9/125 microns for singl
multi-mode where xx/xx are the dia
cladding respectively). Single-mod
distances, about 20Km with the mu
The same procedures as for multi-m
connectors. Follow the steps listed

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Installation and User Guide

nector to remedy this situation.

ype, "Snap-In"

o installations using SC-type fiber
SC and SC single-mode. While connecting
ply snap on the two square male connectors
er connector until it clicks and secures.

er Optic

le, be sure to use single-mode fiber port
ble has a smaller diameter than multi-mode
le-mode, 50/125 or 62.5/125 microns for
ameters of the core and the core plus the
de fiber allows full bandwidth at longer
ulti-mode SC.
mode fiber apply to single-mode fiber
d in Section 3.8.2 above.

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ESD42 Dual-Homing Edge Switch
3.8.5 Power Budget Calculations fo

Receiver Sensitivity and Transmitte
compute the power budget. To calculate the p
installations using Magnum products, the foll
OPB (Optical Power Budget) = PT(min) - PR(

where PT = Transmitter Output Po

Worst case OPB = OPB - 1dB(for LED ag
Worst case distance = {Worst case OPB, i
where the “Cable Loss” for 62.5/125 and 50/1

and the “Cable Loss” for 100/140 (
and the “Cable Loss” for 9/125 (Sin
and the “Cable Loss” for 9/125 (Sin
The following data has been collected from c
Uniphase, stratus, Lucent) web sites and cata
integrators and installers-

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Installation and User Guide
or ESD42 Series, Fiber Media

er Power are the parameters necessary to
power budget of different fiber media
lowing equations should be used:
(min)
ower, and PR = Receiver Sensitivity

ging) - 1dB(for insertion loss)
in dB} / [Cable Loss, in dB/Km]
125μm (m.m.) is 2.8 dB/km,
(Multi-mode) is 3.3 dB/km,
ngle-mode) is 0.5 dB/km
ngle-mode) is 0.25 dB/km (SSCX)
component manufacturer’s (Agilent’s, JDS-
alogs to provide guidance to network

7

ESD42 Dual-Homing Edge Switch

Fiber Speed, Std. km Wavel Cab
Port
Module Std. Mode fdx ength Size
(hdx) nm μm

ESD42- 100Mb Multi- 2 1310 62.5/1
MST, MSC FX mode (0.4) 50/12

ESD42-SSC 100Mb Single- 20 1310 9/12
FX mode (0.4)

ESD42-MTRJ 100Mb Multi- 2 1310 62.5/1
FX mode (0.4) 50/12

Long Reach 100Mb Single- 40 1310 9/12
FX mode (0.4)
1310 9/12
ESD42-LC 100Mb Single- 15+
FX mode 1550 9/12
1310 9/12
ESD42-SSCX 100Mb Single- 100
FX mode
20
100Mb Single- (0.4)
ESD42-SFC FX mode

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ble X’mitr R’cvr Worst Worst* typical typical*
e Output Sens. OPB, distance OPB, distance
m PT , dB PR ,dB dB Km, fdx dB Km, fdx

125 -20 -31 9.0 2.5 14 5
25 -23.5 -31 5.5 2.0 12 4

25 -15 -31 14 28 17.5 35

125 -20 -31 9.0 3.0 15.8 5.5
25 -23.5 -31 5.5 2.0 12.2 4.0

25 -5 -34 27 54 32.5 65

25 -15 -28 11 22 - -
25 -5 -35 28
25 -16 -32 14 112 - -
28 - -

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ESD42 Dual-Homing Edge Switch

* Note: The use of either multi-mode or sing
over long distances (i.e., over approx. 400 me
factors are both applied:

• The 100Mb fiber segment must o
• The worst-case OPB of the fiber

passive Attenuation.
(Attenuation = Cable loss + LED agin

3.8.6 Connections to NICs which su

The copper ports of Magnum ESD4
function properly with NICs (Network Interfa
and the Fast Link Pulse (FLP) coding for the
connecting a NIC to the ESD42 -Series, it ma
the user device if the NIC has been communi
TX (such as 10BASE-T). When 100Mb oper
illuminated steady ON and is OFF, if 10 Mbp

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Installation and User Guide

gle-mode fiber to operate at 100Mbps speed

eters) can be achieved only if the following

operate in full-duplex (FDX) mode, and
link must be greater than the fiber cable’s

ng loss + Insertion loss + safety factor)

upport Auto-Negotiation

42 -Series Dual-homing Edge Switches will
ace Cards) which support Auto-Negotiation,
100BASE-TX signaling system. When
ay be necessary to reload the NIC drivers on
icating with a protocol other than 100BASE-
ration is agreed and in use, the 10/100 LED is
ps traffic.

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ESD42 Dual-Homing Edge Switch
4.0 OPERATION

4.1 Dual-Speed Functionality, and Switch
The Magnum ESD42 Du

switched ports with combination of fiber and
supports a dual speed switching environment

The switched RJ-45 ports are full- o
speed, and auto-cross for plug polarity. (See S
Mbps, the ESD42 s obeys all the rules of 10 M
users can “communicate” with 100Mbps user
switch. Similarly, the 100Mbps traffic obeys
communicate with 10 Mb and 100Mb users. M
and-play devices. There is no software confi

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hing
ual-Homing Edge Switches provide SIX
d copper or copper only. The architecture
t, with standard auto-negotiation capability.
or half-duplex auto-sensing for mode and
Section 4.2). When the connected device is 10
Mbps Ethernet configurations. The 10 Mbps
rs as well as other 10 Mbps users through the

the rules of 100Mbps Ethernet, and can
Magnum ESD42 Dual-Homing units are plug-
iguring to be done at installation or for

0

ESD42 Dual-Homing Edge Switch

maintenance, even for the Dual Homing featu

described below.

Switching, Filtering and Forwarding
Each time a packet arrives on one of the swit
or to forward the packet. Packets whose sour
port segment will be filtered, constraining the
network from processing them. A packet wh
segment will be forwarded to the appropriate
where it is not needed. Packets needed for m
as occasional multi-cast packets) are forward
Homing Edge Switches operate in the store-a
bad packets and enables peak performance to
network.
Switching, Address Learning

The Magnum ESD42 Dual-Homing
node addresses, and are suitable for use in lar

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Installation and User Guide

ure. The internal functions of both are

tched ports, the decision is taken to either filter
rce and destination addresses lie on the same
em to one port and relieving the rest of the
hose destination address is on another port
e port, and will not be sent to the other ports
maintaining the operation of the network (such
ded to all ports. The Magnum ESD42 Dual-
and-forward switching mode, which eliminates
o be achieved when there is heavy traffic on the

g units have address table capacity of 2K
rge networks. They are self-learning, so

1

ESD42 Dual-Homing Edge Switch

that as nodes are added or removed or moved
- Series switch automatically keeps up with n

An address-aging algorithm causes
new frequently-used addresses. To reset the

4.2 Auto-cross (MDIX), Auto-negotiation
The RJ-45 ports support auto-cross

mode according to the IEEE 802.3u standard
port, when connecting the ESD42 to other un
switches, media-converter etc. Please note th
switches where the switch manager fixes the
the auto-negotiation is changed in the manage
such cases, the 10/100 speed or the F/H mode
ESD42 will still work. The auto-cross functi

When an RJ-45 cable connection is
auto-negotiation takes place (except for legac
negotiation and which go to the default state

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d from one segment to another, the ESD42
node locations.
s least-used addresses to fall out in favor of
address buffer, cycle power down-and-up.

n and Speed-sensing
s (MDI or MDIX) in the auto-negotiation
d. No crossover cables are needed on RJ-45
nmanaged switches, legacy hubs, managed
hat there can be conditions with managed
port settings via software, and the result of
ed switch by the manager commands. In
e may be affected, but auto-cross in the
ion cannot be disabled.
s made, and each time LINK is enabled,
cy products, which do not have auto-
accordingly). The Magnum ESD42

2

ESD42 Dual-Homing Edge Switch

Switch advertises its capability for 10 or 100
the device at the other end of the cable should
will agree to the speed and mode to be used p
upon the devices connected, this will result in
or 100Mbps speed, and full- or half-duplex m

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Installation and User Guide

Mbps speed and F/H duplex mode, and
d similarly advertise / respond. Both sides
per the IEEE 802.3u standard. Depending
n agreement to operate at either 10 Mbps
mode.

3

ESD42 Dual-Homing Edge Switch

4.3 Dual LEDs, Front-panel and side-pan
LED Description

PWR Illuminates GREEN to indicate pow

LK/ ACT Steady ON for LINK w/no traffic,
off in the event connectivity is lost
or a loss of power occurs in the uni
represented by LA1, LA2, LA3…L
Receive Activity).

10/100 Steady ON for 100Mb speed, OFF

F/H (FH1, FH2) Steady ON for Full duple
mode per port (For fiber port only)

NOTE: The port#1 and 2 is being assigned fo
all copper 10/100 ports model (e.g
copper port only. For the model 4co
H-ff-Hd) the F or H denotes for fib

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nel

wer applied.
, blinking for activity per port. LINK will turn
between the ends of the twisted pair segment
it or remote device. The Link ports are also
LA6. (Steady On or steady Off indicates no

F for 10Mb speed per port (copper ports)
ex (F/D) mode, OFF for Half duplex (H/D)

or copper or fiber port for different models. On
ESD42 -d), the LEDs 10 or 100 denotes for
opper +2 fiber or 5copper +1fiber,(e.g ESD42
ber port only.

4

ESD42 Dual-Homing Edge Switch

4.4 Hardware operated Alarm Contact fo
The two screws Alarm Contacts

provides Normally Closed (NC) contacts to w
monitoring wires at the green terminal block.
block for Alarm Contacts is part of the Power
The DC power input connection is in the sam

The NC Alarm Contact is held c
when there is power on the main board inside
ESD42. This provides a “Hardware operated
Alarm” because the NC contacts will open w
internal power is lost, either from an external
down condition or by the failure of the power
inside of the Magnum ESD42 Switch.

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or monitoring internal power supply
s feature, standard on Magnum ESD42H and P,
which the user can attach one set of status
. When this option is present, the terminal
r Input panel in the Magnum ESD42 s case.
me panel.
close
e of the
d
when
l power
r supply

5

ESD42 Dual-Homing Edge Switch

Useful info about Alarm Contacts in ESD42
1. Two-position terminal block (1,2) provid

photo on previous page.
2. The Alarm Relay contact connected to th
3. By default it is NC (normally closed). It w

electronics inside of the unit.
4. Maximum voltage that can be supplied to
5. The Alarm contacts are not polarity depen

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H and ESD42 P:
ded next to the DC power input, as shown in
he two terminals (1,2) is hardware operated.
will open if there is any loss of power to the
o Alarm contacts is 12VDC.
ndent.

6