Moxa Technologies IESH-MB205G-C2E-R Series User manual

P/N: 1802020003070
*1802020003070*
IESH-MB205G-C2E-R/
IESH-MB208G-C2E-R Series
Quick Installation Guide
Misumi IESH-MB Switch
Version 1.0, July 2023

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Overview
The IESH-MB205G-C2E-R/IESH-MB208G-C2E-R Series has a 5-port and
8-port combination to simplify network expansion. The compact
switches provide a cost-effective solution for your industrial Ethernet
connection requirements.
The IESH-MB205G-C2E-R/IESH-MB208G-C2E-R Series provides
12/24/48 VDC power input, and the switches are available with a
standard operating temperature range from -10 to 60°C. The switches
are rugged enough to operate reliably in harsh industrial environments.
To provide greater versatility for use with applications from different
industries, the IESH-MB205G-C2E-R/IESH-MB208G-C2E-R Series also
allows users to enable or disable broadcast storm protection (BSP),
Quality of Service (QoS) function via the DIP switches on the top panel.
The IESH-MB205G-C2E-R/IESH-MB208G-C2E-R switches can be easily
installed with DIN-rail mounting as well as distribution boxes. The DIN-
rail mounting capability with LED indicators ensure that the plug-and-
play IESH-MB205G-C2E-R/IESH-MB208G-C2E-R switches are reliable
and easy to use.
NOTE
Throughout this Quick Installation Guide, we use IESH-MB as
an abbreviation for Misumi IESH-MB Switch:
IESH-MB = Misumi IESH-MB Switch
ATTENTION
This device complies with part 15 of FCC Rules. Operation is
subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept
any interference received, including interference that may
cause undesired operations.
Package Checklist
Your IESH-MB is shipped with the following items.
•Misumi IESH-MB Switch
•Quick installation guide (printed)

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Features
High Performance Network Switching Technology
•10/100/1000BaseT(X) auto-negotiation speed, full/half duplex
mode, auto MDI/MDI-X connection.
•IEEE 802.3 for 10BaseT.
•IEEE 802.3u for 100BaseT(X).
•IEEE 802.3ab for 1000BaseT(X).
•IEEE 802.3x for flow control.
•IEEE 802.1p for Quality of Service (QoS) traffic prioritized function.
•Store-and-forward switching process type.
Industrial-grade Reliability
•Broadcast storm protection to prevent network devices from
crashing.
Rugged Design
•Operating temperature range from -10 to 60°C.
•Rugged high-strength case.
•DIN-rail or wall mounting ability.
WARNING
The power for this product is intended to be supplied by a
Listed Power Supply, with output marked LPS, and rated to
deliver 12 to 48 VDC.

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Panel Layout of IESH-MB205G-C2E-R
1. Chassis ground screw
2. Terminal block for power input
3. DIP switch
4. Power LED
5. 10/100/1000BaseT(X) Port
6. 10/100/1000BaseT(X) Port LED
7. Port number

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Panel Layout of IESH-MB208G-C2E-R
1. Chassis ground screw
2. Terminal block for power input
3. DIP switch
4. Power LED
5. 10/100/1000BaseT(X) Port
6. 10/100/1000BaseT(X) Port LED
7. Port number

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Mounting Dimensions
IESH-MB205G-C2E-R
IESH-MB208G-C2E-R

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DIN-rail Mounting
When shipped, the DIN-rail mounting kit is fixed to the back panel of
the IESH-MB. Mount the IESH-MB on the corrosion-free mounting rail
that adheres to the EN 60715 standard.
Suggested Installation Method
STEP 1:
Insert the upper lip of the DIN-
rail kit into the mounting rail.
STEP 2:
Press the device towards the
mounting rail until it snaps into
place. Alternatively, you can use
a screwdriver to attach to the
bottom of the DIN-rail kit and pull
down.
Suggested Removal Method
STEP 1:
Pull down the latch on the DIN-
rail kit with a flat-head
screwdriver.
STEP 2:
Slightly pull the device forward
and lift up to remove it from the
mounting rail.

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ATTENTION
When installing or removing the devices, please insert a flat-
head screwdriver into the latch of the holding clamp and pull
the latch downward rather than pushing it towards the DIN rail
side, when removing the module from the rail.
If you want to change the position of the device on the DIN rail,
please follow the steps shown in the images above. First,
remove the device using a flat-head screwdriver and then re-
install the device in the desired position. Please DO NOT directly
move the device on the DIN rail, without uninstalling it first.
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may
be impaired.
Please use a flat-head screwdriver
with a head size of between 4 and 6
mm for proper installation or
removal.
WARNING
1. The installation and the safety of any system incorporating
the equipment is the responsibility of the assembler of the
system.
2. This is an open type module and should be installed in a
safety enclosure with mechanical rigidity and an
appropriate IP rating.

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Wall Mounting (optional)
For some applications, you will find it convenient to mount IESH-MB on
the wall, as illustrated below.
There are two options for installation: The first option
is to hook the IESH-MB DIN-rail latch on the opening
of the wall mount kit (see picture above) and then
mount the wall-mount kit on the wall with screws.
(The other option is to perform these two steps in
the other order.) The heads of the screws should be
less than 6.0 mm in diameter, and the shafts should
be less than 3.5 mm in diameter, as shown in the
figure at the right.
NOTE
Before tightening screws into the wall, make sure the screw
head and shank size are suitable by inserting the screw into
one of the keyhole-shaped apertures of the Wall Mounting
Plates.
Do not screw the screws in all the way—leave about 2 mm to allow
room for sliding the wall mount panel between the wall and the screws.
Once the screws are fixed in the
wall, insert the two screw heads
through the large parts of the
keyhole-shaped apertures, and
then slide IESH-MB downwards,
as indicated. Tighten the two
screws for added stability.
WARNING
External parts are hot. Take necessary precautions if it is
necessary to touch.

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Wiring Requirements
WARNING
Do not disconnect modules or wires unless the power supply
has been switched off or the area is known to be non-
hazardous. The devices may only be connected to the supply
voltage shown on the type plate.
The devices are designed for operation with a Safety Extra-Low
Voltage. Thus, they may only be connected to the supply
voltage connections and to the signal contact with the Safety
Extra-Low Voltages (SELV) in compliance with
IEC950/EN60950/VDE0805/UL 61010-1/UL 61010-2-201.
WARNING
Safety First!
Be sure to disconnect the power cord before installing and/or
wiring your Misumi IESH-MB Switch.
Calculate the maximum possible current in each power wire
and common wire. Observe all electrical codes dictating the
maximum current allowable for each wire size.
If the current goes above the maximum ratings, the wiring
could overheat, causing serious damage to your equipment.
You should also pay attention to the following items:
•Use separate paths to route wiring for power and devices. If power
wiring and device wiring paths must cross, make sure the wires are
perpendicular at the intersection point.
NOTE: Do not run signal or communications wiring and power
wiring in the same wire conduit. To avoid interference, wires with
different signal characteristics should be routed separately.
•You can use the type of signal transmitted through a wire to
determine which wires should be kept separate. The rule of thumb
is that wiring that shares similar electrical characteristics can be
bundled together.
•Keep input wiring and output wiring separated.
•It is strongly advised that you label wiring to all devices in the
system when necessary.

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Grounding Misumi IESH-MB Switch
Grounding and wire routing help limit the effects of noise due to
electromagnetic interference (EMI). Run the ground connection from
the ground screw to the grounding surface prior to connecting devices.
A 4 mm2conductor must be used when a connection to the external
grounding screw is utilized.
ATTENTION
This product is intended to be mounted to a well-grounded
mounting surface, such as a metal panel.
NOTE
When using shielded cables to connect two Ethernet devices, a
ground loop may occur if the shielding on the cables generates
an additional grounding connection path. This can cause ground
current to flow through to the Ethernet ports and damage the
devices. Therefore, STP cables must only be connected to the
ground at one end.
Wiring the Power Input
The top two contacts and the bottom two contacts of the 3-contact
terminal block connector on the IESH-MB’s top panel are used for the
IESH-MB’s two DC inputs. Top and front views of one of the terminal
block connectors are shown here.
STEP 1:
Insert the negative/positive DC wires into the V-/V+ terminals.
STEP 2:
To keep the DC wires from pulling loose, use a small flat-blade
screwdriver to tighten the wire-clamp screws on the front of the
terminal block connector.
STEP 3:
Insert the plastic terminal block connector prongs into the terminal
block receptor, which is located on the IESH-MB’s top panel.
NOTE
The power source comes from secondary circuits. These circuits
are separated from mains circuits by a transformer in which the
primary windings are separated from the secondary windings
by reinforced installation, double installation, or a screen
connected to the protective conductor terminal.

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ATTENTION
Before connecting the IESH-MB to the DC power inputs, make
sure the DC power source voltage is stable.
ATTENTION
Power Terminal plug wiring size 28-14 AWG, tighten to 1.7 in-
lbs. Only use copper conductors.
ATTENTION
The cable that is connected to the field wiring terminals must
be capable of withstanding at least 105°C.
Communication Connections
The IESH-MB205G-C2E-R/IESH-MB208G-C2E-R models have
10/100/1000BaseT(X) Ethernet ports.
10/100/1000BaseT(X) Ethernet Port Connection
The 10/100/1000BaseT(X) ports located on the IESH-MB’s front panel
are used to connect to Ethernet-enabled devices.
Below we show pinouts for both MDI (NIC-type) ports and MDI-X
(HUB/Switch-type) ports, and also show cable wiring diagrams for
straight-through and cross-over Ethernet cables.
10/100Base T(x) RJ45 Pinouts
MDI Port Pinouts
MDI-X Port Pinouts
8-pin RJ45
Pin
Signal
1
Tx+
2
Tx-
3
Rx+
6
Rx-
Pin
Signal
1
Rx+
2
Rx-
3
Tx+
6
Tx-
1000BaseT(x) RJ45 Pinouts
Pin
MDI
MDI-X
1
BI_DA+
BI_DB+
2
BI_DA-
BI_DB-
3
BI_DB+
BI_DA+
4
BI_DC+
BI_DD+
5
BI_DC-
BI_DD-
6
BI_DB-
BI_DA-
7
BI_DD+
BI_DC+
8
BI_DD-
BI_DC-

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RJ45 (8-pin) to RJ45 (8-pin) Straight-through Cable Wiring
RJ45 (8-pin) to RJ45 (8-pin) Cross-over Cable Wiring
DIP Switch Settings
DIP Switch
Setting
Description
Quality of
Service (QoS)
ON
Enable the Quality of Service to handle packet
priorities in four WRR queues.
QoS priority mapping matrix in each queue
QoS 3bit priority
7, 6
5, 4
3, 2
1, 0
Queues
3
2
1
0
WRR
8
4
2
1
OFF
Disable the Quality of Service.
Broadcast
Storm
Protection
(BSP)
ON
Enables broadcast storm protection (at a
maximum of 2048 broadcast packets per
second) for each Ethernet port.
OFF
Disables the broadcast storm protection.

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LED Indicators
The front panel of the Misumi IESH-MB Switch contains several LED
indicators. The function of each LED is described in the table below.
LED
Color
State
Description
PWR
(P)
Amber
On
Power is being supplied to power input
PWR.
Off
Power is not being supplied to power input
PWR.
10M/
100M
Amber
On
When the port is active and links on at
10/100 Mbps.
Blinking
When the port’s data is being transmitted
at 10/100 Mbps.
Off
When the port is inactive or link down.
1000M
Green
On
When the port is active and links on at
1000 Mbps.
Blinking
When the port’s data is being transmitted
at 1000 Mbps.
Off
When the port is inactive or link down.
Auto MDI/MDI-X Connection
The Auto MDI/MDI-X function allows users to connect the IESH-MB’s
10/100/1000BaseT(X) ports to any kind of Ethernet device, without
paying attention to the type of Ethernet cable being used for the
connection. This means that you can use either a straight-through cable
or cross-over cable to connect the IESH-MB to Ethernet devices.
Triple Speed Functionality and Switching
The IESH-MB’s 10/100/1000 Mbps RJ45 switch port auto negotiates
with the connected device for the fastest data transmission rate
supported by both devices. The IESH-MB is a plug-and-play device, so
software configuration is not required at installation or during
maintenance.
The half/full duplex mode for the RJ45 switched ports is user dependent
and changes (by auto-negotiation) to full or half duplex, depending on
which transmission speed is supported by the attached device.
Switching, Filtering, and Forwarding
Each time a packet arrives at one of the switched ports, a decision is
made to either filter or forward the packet. Packets with source and
destination addresses belonging to the same port segment will be
filtered, constraining those packets to one port, and relieving the rest of
the network from the need to process them. A packet with a destination
address on another port segment will be forwarded to the appropriate
port, and will not be sent to the other ports where it is not needed.
Packets that are used in maintaining the operation of the network (such
as the occasional multi-cast packet) are forwarded to all ports except
the incoming port. The IESH-MB operates in the store-and-forward
switching mode, which eliminates bad packets and enables peak
performance to be achieved when there is heavy traffic on the network.

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Address Learning
The Misumi IESH-MB has an address table that can hold up to 4,000
node addresses, which makes it suitable for use with large networks.
The address tables are self-learning, so that as nodes are added or
removed, or moved from one segment to another, IESH-MB
automatically keeps up with new node locations. An address-aging
algorithm causes the least-used addresses to be deleted in favor of
newer, more frequently used addresses. To reset the address buffer,
power down the unit and then power it back up.
Auto-Negotiation and Speed Sensing
The IESH-MB’s RJ45 Ethernet ports independently support auto-
negotiation for transmission speeds of 10 Mbps, 100 Mbps, and 1000
Mbps, with operation according to the IEEE802.3 standard. This means
that some nodes could be operating at 10 Mbps, while at the same
time, other nodes are operating at 100 Mbps or 1000 Mbps.
When an RJ45 cable is connected, auto-negotiation takes place, and
then each time a LINK is enabled. The IESH-MB advertises its capability
for using 10 Mbps, 100 Mbps, or 1000 Mbps, transmission speeds, with
the device at the other end of the cable expected to advertise similarly.
Depending on what type of device is connected, this will result in
agreement to operate at a speed of 10 Mbps, 100 Mbps, or 1000 Mbps.
If an IESH-MB’s RJ45 Ethernet port is connected to a non-negotiating
device, it will default to 10 Mbps speed and half-duplex mode, as
required by the IEEE802.3 standard.
Specifications
Technology
Standards
IEEE 802.3 for 10BaseT,
IEEE 802.3u for 100BaseT(X),
IEEE 802.3ab for 1000BaseT(X),
IEEE 802.1p for Class of Service
Flow Control
IEEE 802.3x flow control, back pressure flow
control
Interface
RJ45 Ports
10/100/1000BaseT(X) auto negotiation speed
LED Indicators
PWR, 10M/100M/1000M
DIP Switch
QoS, Broadcast Storm Protection (BSP)
Switch Properties
MAC Table Size
4 K
Packet Buffer Size
1.5 Mbits
Processing Type
Store and Forward
Power
Input Voltage
12-48 VDC inputs
Input Current
(max.)
IESH-MB205G-C2E-R: 0.21 A
IESH-MB208G-C2E-R: 0.33 A
Connection
Removable 3-contact terminal block
Overload Current
Protection
Present
Reverse Polarity
Protection
Present

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Mechanical
Dimensions
(W x H x D)
IESH-MB205-C2E-R:
19 81 65 mm (0.74 3.19 2.56 in)
IESH-MB208G-C2E-R:
36 81 65 mm (1.4 3.19 2.56 in)
Weight
IESH-MB205G-C2E-R: 90 g (0.20 lb)
IESH-MB208G-C2E-R: 140 g (0.31 lb)
Installation
DIN-rail, Wall Mounting (optional kit)
Environmental Limits
Note: For indoor use only.
Operating
Temperature
-10 to 60°C (32 to 140°F)
Storage
Temperature
-40 to 85°C (-40 to 185°F)
Ambient Relative
Humidity
5 to 95% (non-condensing)
Regulatory Approvals
EMC
EN 55032/35
EMI
FCC Part 15B, CISPR 32 (EN 55032) Class A
EMS
CISPR 35 (EN 55035)
EN 61000-4-2 (ESD)
EN 61000-4-3 (RS)
EN 61000-4-4 (EFT)
EN 61000-4-5 (Surge)
EN 61000-4-6 (CS)
EN 61000-4-8 (PFMF)
Shock
IEC60068-2-27
Free Fall
IEC60068-2-32
Vibration
IEC60068-2-6
NOTE
•This device is intended for use indoor and at altitudes up to
2000 meters.
•Suitable for installation in a pollution degree 2
environment.
•Clean the device with a soft dry or wet cloth.
•For any repair or maintenance needs, please contact us.
Hot Surface Label.
Functional earth terminal.