Moxa Technologies MDS-G4000 Series User manual

P/N: 1802040000004
*1802040000004*
MDS-G4000/MDS-G4000-L3
Series
Quick Installation Guide
Version 1.2, June 2021
Technical Support Contact Information
www.moxa.com/support

2021 Moxa Inc. All rights reserved.

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Package Checklist
Moxa’s MDS-G4000/MDS-G4000-L3 Series industrial modular DIN-rail
switch is shipped with the following items. If any of these items are
missing or damaged, please contact your customer service
representative for assistance.
•1 MDS-G4000 or MDS-G4000-L3 Series switch
•RJ45-to-RS-232 9-pin female console cable
•2 protective caps for unused ports
•Pre-installed DIN-rail kit
MDS-G4012 and MDS-G4012-L3: x 1
MDS-G4020 and MDS-G4020-L3: x 2
MDS-G4028 and MDS-G4028-L3: x 2
•Quick installation guide (printed)
•Substance Disclosure Table
•Product Certificate of Quality Inspection (Simplified Chinese)
•Product Notices (Simplified Chinese)
•Warranty card
NOTE
You can find information and software downloads on the
relevant p
roduct pages located on Moxa’s website:
www.moxa.com
Default Settings
•IP address: 192.168.127.253
•Subnet Mask: 255.255.255.0
•Username: admin
•Password: moxa
Panel Layouts
1. System status LEDs (from left to right, top to bottom)
STATE, FAULT, MASTER/HEAD, COUPLER/TAIL, and SYNC LED
indicators
2. USB port (Reserved for future use)

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3. Module status
4. Switch and Control module slot 1 (Embedded)
5. Ethernet module slot 2
6. Ethernet module slot 3
7. Ethernet module slot 4 (For MDS-G4020/28, MDS-G4020/28-L3)
8. Ethernet module slot 5 (For MDS-G4020/28, MDS-G4020/28-L3)
9. External power input status from EPS
10. Ethernet module slot 6 (For MDS-G4028, MDS-G4028-L3)
11. Ethernet module slot 7 (For MDS-G4028, MDS-G4028-L3)
12. External power supply input for PoE
13. Redundant power module slot 1
14. Redundant power module slot 2
15. RS232 console port with RJ45 interface
16. Reset button (Pin hole 0.9 mm)
17. Relay output and Digital Input port
18. Relay output
19. Power input
20. Grounding screw
Dimensions
MDS-G4012 and MDS-G4012-L3 Series
MDS-G4020 and MDS-G4020-L3 Series
MDS-G4028 and MDS-G4028-L3 Series
Unit: mm (inch)

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Ethernet Modules (Hardware Rev.2.0.0 and above)
NOTE
Transceivers for the LM-7000H-4GSFP module are sold
separately. Refer to
Supported SFP Modules for list of
supported transceivers.
LM-7000H-4GTX
LM-7000H-4GSFP
LM-7000H-4GPoE
LM-7000H-4TX
LM-7000H-4PoE
Power Modules (Hardware Rev.2.1.0 and above)
NOTE
The PWR-LV-P48 power module is certified for Hazardous
Location use.
PWR-HV-P48
PWR-LV-P48
PWR-HV-NP
PWR-LV-NP
DIN-rail Dimensions and Instructions
NOTE
The DIN rail kit is certified for Hazardous Location usage.
MDS-G4012 and MDS-G4012-L3 Series

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MDS-G4020/28 and MDS-G4020/28-L3 Series
1. Insert the upper lip of the DIN rail into the DIN-rail mounting kit.
2. Press the device towards the DIN rail until it snaps into place.
3. Pull down the two latches one by one to release the DIN-rail kit
and lift up to remove the device from the DIN rail.
NOTE
The DIN rail must use the TS35 (15 mm) specification.
Wall-mounting Dimensions and Instructions
(Optional: WK-112-01)
NOTE
The wall-mount kit is certified for Hazardous Location usage.
Mounting the switch to a wall requires
four
screws. The
heads of the screws should be between 6.0 to
9.0 mm
in diameter, and the diameter of screw thread should
be between 3.5 to 4 mm, as shown in the figure on the
right
. Use the switch with the wall-mounting kit
attached as a guide to mark the correct locations of
the eight screws.

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Rack-mounting Dimensions and Instructions
(Optional: RK-3U-01)
The rack mount kit is designed for two MDS-G4028 or MDS-G4028-L3
products.
1. Assemble the right and left part of the kit (indicated with No. 1 in
the diagram) with four screws each.
2. Assemble the part of the rack kit (indicated with No. 2 in the
diagram) with eight screws in order to combine two MDS-G4028 or
MDS-G4028-L3 products.
Rack Mount Top View

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Rack Mount Front View
Rack Mount Rear View
Matters That Require Attention
1. Elevated Operating Temperature:If installed in a closed or
multi-unit rack assembly, the operating ambient temperature of
the rack environment may be greater than room temperature.
Therefore, consideration should be given to installing the
equipment in an environment compatible with the maximum
ambient temperature (Tma) specified by the manufacturer.
NOTE
In order to ensure reliable operations, please make sure the
operating temp
erature of the environment does not exceed the
spec. When moun
ting a rack-mounted switch with other
operating units in a cabinet without forced ventilation, it is
recommended that 1U of space is reserved between each rack
-
mounted switch and/or device.
2. Required Air Flow: Installation of the equipment in a rack should
be such that the amount of air flow required for safe operation of
the equipment is not compromised.
NOTE
The optimal keep-out zone is 50 mm for the top, bottom, left,
and right side of the device.
3. Mechanical Loading: Mounting of the equipment in the rack
should be such that a hazardous condition is not achieved due to
uneven mechanical loading.
4. Circuit Overloading: Consideration should be given to the
connection of the equipment to the supply circuit and the effect
that overloading of the circuits might have on overcurrent
protection and supply wiring. Appropriate consideration of
equipment nameplate ratings should be used when addressing this
concern.
5. Reliable Grounding: Reliable grounding of rack-mounted
equipment should be maintained. Particular attention should be

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given to supply connections other than direct connections to the
branch circuit (e.g. use of power strips).
ATTENTION
Safety First
!
Be sure to disconnect the power cord
before installing and/or
wiring your Ethernet 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,
which can cause serious damage to
your equipment.
Connecting the Power Inputs
The MDS-G4000 and MDS-G4000-L3 Series support 4 types of power
supply:
•PWR-HV-P48: one 110/220 VAC/VDC (90 to 264 VAC, 88 to 300
VDC), one 48 VDC PoE power input for PoE+ ports.
•PWR-LV-P48: one 24/48 VDC (18 to 72 VDC), one 48 VDC PoE
power input for PoE+ ports.
NOTE
The PWR-LV-P48 power module is certified for Hazardous
Location use.
•PWR-HV-NP: one 110/220 VAC/VDC (90 to 264 VAC, 88 to 300
VDC) power input.
•PWR-LV-NP: one 24/48 VDC (18 to 72 VDC) power input.
For the PWR-HV-P48, the 110/220 VAC/VDC power supplies provide
power to the switch. Separate 48 VDC power supplies are required to
provide power to all PoE+ ports (50 to 57 VDC is recommended for
IEEE 802.3at devices. The max. PoE output from an external power
supply is 720 W when the operating temperature is under 60°C; 360 W
when the operating temperature is under 75°C.).
For the PWR-LV-P48 models, the 24/48 VDC power supplies provide
power to the switch. Separate 48 VDC power supplies are required to
provide power to all PoE+ ports (50 to 57 VDC is recommended for
IEEE 802.3at devices. The max. PoE output from an external power
supply is 720 W when the operating temperature is under 60°C; 360 W
when the operating temperature is under 75°C.).

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ATTENTION
F
or Hazardous Location Use
The
PoE capacity of the PWR-LV-P48 is only certified for use in
h
azardous locations up to a maximum power budget of 369.6
W and a maximum output of up to 15.4 W per port.
For the PWR-HV-NP, the 110/220 VAC/VDC power supplies provide
power to the switch.
For the PWR-LV-NP, the 24/48 VDC power supplies provide power to
the switch.
Power Terminal Blocks
The connection for power input and PoE external power supply is on the
power modules.
PWR-HV-P48/PWR-HV-NP
1. Insert the neutral/line (L/N/Ground) AC wires into the terminals.
2. Insert the terminal block connector into the terminal block
receptor.
PWR-LV-P48/PWR-LV-NP
1. Remove 8 to 9 mm of the DC wires’ protective cover.
2. Use a tool to push the spring mechanism inwards to open it.
3. Insert the negative/positive (-/+) DC wires into the terminals.
4. Release the spring mechanism.
5. Insert the terminal block connector prongs into the terminal block
receptor.

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PoE Power Terminal Blocks
1. Remove 8 to 9 mm of the DC wires’ protective cover.
2. Use a tool to push the spring mechanism inwards to open it.
3. Insert the negative/positive (-/+) DC wires into the terminals.
4. Release the spring mechanism.
5. Insert the terminal block connector prongs into the terminal block
receptor.
NOTE
In order to have higher l
evels of protection against surge, it is
suggested to install a surge protector in front of the power
input
of the PoE powered device so that it is suitable for use in
IEC 61850 conditions.
NOTE
When wiring the power input, we suggest using the cable type -
AWG (American Wire Gauge) 1
6-20 (1.31-0.519 mm2) and the
corresponding pin type cable terminals. The rated temperature
of wiring should be at least 105°C.
NOTE
When wiring the PoE power input, we suggest using the cable
type
- AWG (American Wire Gauge) 16 (1.31 mm2) and the
corresponding pin type cable terminals. The rated temperature
of wiring should be at least 105°C.
NOTE
When two power units are installed on the switch, both power
units will be activated simultaneously, which will
enable power
redundancy.
NOTE
The reverse power input connection will not activate the device
or PoE input
. In addition, the PoE will only activate when the
external power supply is installed on the same power unit.