Moxa
MGate MB3170I-S-SC-T

MGate MB3170I-S-SC-T

MGate MB3170/MB3270 Series

1 and 2-port advanced serial-to-Ethernet Modbus gateways

  • Supports Auto Device Routing for easy configuration
  • Supports route by TCP port or IP address for flexible deployment
  • Connects up to 32 Modbus TCP servers
  • Connects up to 31 or 62 Modbus RTU/ASCII slaves
  • Accessed by up to 32 Modbus TCP clients (retains 32 Modbus requests for each Master)
  • Supports Modbus serial master to Modbus serial slave communications
  • Built-in Ethernet cascading for easy wiring
  • 10/100BaseTX (RJ45) or 100BaseFX (single mode or multi-mode with SC/ST connector)
  • Emergency request tunnels ensure QoS control
  • Embedded Modbus traffic monitoring for easy troubleshooting
  • Serial port with 2 kV isolation protection (for “-I” models)
  • -40 to 75°C wide operating temperature models available
  • Supports redundant dual DC power inputs and 1 relay output

Certifications DNV · CE · FCC · Iecex

Ships from and sold by A5 IT, an authorized Moxa reseller.

Specifications

Ethernet Interface

10/100BaseT(X) Ports (RJ45 connector)
2 (1 IP, Ethernet cascade) Auto MDI/MDI-X connection
Magnetic Isolation Protection
1.5 kV (built-in)
Optical Fiber
Read more 100BaseFX Multi-Mode Single-Mode Fiber Cable Type OM1 50/125 µm G.652 800 MHz x km Typical Distance 4 km 5 km 40 km Wavelength Typical (nm) 1300 1310 TX Range (nm) 1260 to 1360 1280 to 1340 RX Range (nm) 1100 to 1600 1100 to 1600 Optical Power TX Range (dBm) -10 to -20 0 to -5 RX Range (dBm) -3 to -32 -3 to -34 Link Budget (dB) 12 29 Dispersion Penalty (dB) 3 1 Note: When connecting a single-mode fiber transceiver, we recommend using an attenuator to prevent damage caused by excessive optical power. Note: Compute the “typical distance” of a specific fiber transceiver as follows: Link budget (dB) > dispersion penalty (dB) + total link loss (dB).

Ethernet Software Features

Industrial Protocols
Modbus TCP Client (Master) Modbus TCP Server (Slave)
Configuration Options
Web Console (HTTP/HTTPS) Device Search Utility (DSU) MGate Manager MCC Tool Telnet Console
Management
ARP DHCP Client DNS HTTP HTTPS SMTP SNMP Trap SNMPv1/v2c/v3 TCP/IP Telnet UDP NTP Client
MIB
RFC1213, RFC1317
Time Management
NTP Client

Security Functions

Authentication
Local database
Encryption
HTTPS AES-128 AES-256 SHA-256
Security Protocols
SNMPv3 HTTPS (TLS 1.2)

Serial Interface

No. of Ports
1
Connector
DB9 male for RS-232 and terminal block for RS-422/485
Serial Standards
RS-232/422/485 (software selectable)
Baudrate
50 bps to 921.6 kbps
Data Bits
7, 8
Parity
None Even Odd Space Mark
Stop Bits
1, 2
Flow Control
DTR/DSR RTS Toggle (RS-232 only) RTS/CTS
Pull High/Low Resistor for RS-485
1 kilo-ohm, 150 kilo-ohms
Terminator for RS-485
120 ohms
Isolation
2 kV
RS-485 Data Direction Control
ADDC (automatic data direction control)

Serial Signals

RS-232
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
Data+, Data-, GND
RS-485-4w
Tx+, Tx-, Rx+, Rx-, GND

Serial Software Features

Industrial Protocols
Modbus RTU/ASCII Master Modbus RTU/ASCII Slave

Modbus (Transparent)

Max. No. of Client Connections
32
Max. No. of Server Connections
32

Power Parameters

Input Voltage
12 to 48 VDC
Input Current
555 mA @ 12 VDC
Power Connector
7-pin terminal block

Relays

Contact Current Rating
Resistive load: 1 A @ 30 VDC

Physical Characteristics

Housing
Plastic
IP Rating
IP30
Dimensions (with ears)
29 x 89.2 x 124.5 mm (1.14 x 3.51 x 4.90 in)
Dimensions (without ears)
29 x 89.2 x 118.5 mm (1.14 x 3.51 x 4.67 in)
Weight
360 g (0.79 lb)

Environmental Limits

Operating Temperature
-40 to 75°C (-40 to 167°F)
Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

EMC
EN 55032/35
EMI
CISPR 32, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m IEC 61000-4-4 EFT: Power: 4 kV; Signal: 2 kV IEC 61000-4-5 Surge: Power: 2 kV IEC 61000-4-6 CS: 10 V IEC 61000-4-8 PFMF IEC 61000-4-11
Hazardous Locations
ATEX Class I Division 2 IECEx
Maritime
DNV
Freefall
IEC 60068-2-32
Shock
IEC 60068-2-27
Vibration
IEC 60068-2-6 IEC 60068-2-64
Safety
UL 60950-1 IEC 60950-1 EN 62368-1 UL 508

MTBF

Time
1,385,414 hrs
Standards
Telcordia SR332

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Documentation

NameTypeVersionDate
Software Package for MXview One Series (Linux version)552.6 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Software Package for MXview One Series (Windows version)249.1 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Moxa CLI Configuration Tool (Linux)11.3 MBUtilityv1.6Feb 02, 2026 Feb 02, 2026 Release notes
Moxa CLI Configuration Tool (Windows)2.1 MBUtilityv1.6Feb 02, 2026 Feb 02, 2026 Release notes
Device Search Utility (portable)128.6 MBUtilityv3.1Nov 17, 2025 Nov 17, 2025 Release notes
Device Search Utility (installer)236.2 MBUtilityv3.1Nov 17, 2025 Nov 17, 2025 Release notes
MXconfig Plugin1.8 MBSoftware Packagev1.8Oct 02, 2025 Oct 02, 2025 Release notes
MXview One plugin (Linux)21.7 MBSoftware Packagev1.8Oct 01, 2025 Oct 01, 2025 Release notes
MXview One plugin (Windows)22.6 MBSoftware Packagev1.8Oct 01, 2025 Oct 01, 2025 Release notes
Moxa CLI Configuration Tool (Windows)2.0 MBUtilityv1.5Jul 30, 2025 Jul 30, 2025 Release notes
Firmware for MGate MB3270947.8 KBFirmwarev4.7Jul 03, 2025 Jul 03, 2025 Release notes
Firmware for MGate MB3170932.7 KBFirmwarev4.7Jul 03, 2025 Jul 03, 2025 Release notes
MXconfig Plugin3.6 MBSoftware Packagev1.7Nov 11, 2024 Nov 11, 2024 Release notes
MXconfig plugin (non-Java version)1.8 MBSoftware Packagev1.6Nov 11, 2024 Nov 11, 2024 Release notes
MXview Plugin41.7 MBSoftware Packagev1.6Oct 04, 2024 Oct 04, 2024 Release notes
MXview Plugin40.8 MBSoftware Packagev1.5Jun 12, 2024 Jun 12, 2024 Release notes
MGate Manager Utility5.4 MBUtilityv1.19Dec 12, 2023 Dec 12, 2023 Release notes
MGate Manager Utility5.4 MBUtilityv1.18Sep 25, 2023 Sep 25, 2023 Release notes
Device Search Utility2.2 MBUtilityv2.7Jun 28, 2023 Jun 28, 2023 Release notes
Moxa CLI Configuration Tool for Linux8.1 MBUtilityv1.2Mar 31, 2021 Mar 31, 2021 Release notes
Moxa CLI Configuration Tool for Windows2.1 MBUtilityv1.2Mar 31, 2021 Mar 31, 2021 Release notes
Moxa CLI Configuration Tool User Manual850.9 KBManualv2.5Feb 12, 2026
Device Search Utility v3.x User Manual2.8 MBManualv1.1Nov 17, 2025
Manual for MGate MB3000 Series15.1 MBManualv13.4Jul 30, 2025
FOSS Statement for MGate Manager214.8 KBDeclarationv1.0Mar 21, 2025
FOSS Statement for Moxa CLI Configuration Tool114.6 KBDeclarationv1.0Dec 10, 2024
FOSS Statement for MGate MB3000 Series and MGate EIP3000 Series176.4 KBDeclarationv2.0Oct 28, 2024
FOSS Statement for Device Search Utility161.8 KBDeclarationv1.0Jun 24, 2024
Tech Note: Configuring and Monitoring with MXview One/MXview and MXconfig (non-java and java) Plugins2.1 MBTech Notev1.0May 07, 2024
Datasheet for MGate MB3170/MB3270 Series1.4 MBDatasheetv2.1Apr 09, 2024
Declaration of Conformity for MGate MB3170I/EIP3170I/MB3270I/EIP3270I/NPort IA5000I Series308.9 KBDeclarationv1.0Apr 03, 2024
Declaration of Conformity for MGate MB3170/MB3270/EIP3170/EIP3270/NPort IA5000 Series313.9 KBDeclarationv1.0Apr 03, 2024
QIG for MGate MB3170/MB3270 Series1.0 MBQIGv8.4May 19, 2023
Tech Note: The Security Hardening Guide for MGate MB3000 Series922.4 KBTech Notev1.1Jan 12, 2022
Moxa CLI Configuration Tool User's Manual1.1 MBManualv2.0Mar 05, 2019
2D CAD for MGate MB3270 TOP145.2 KB2D CADJan 07, 2015
2D CAD for MGate MB3170425.7 KB2D CADJan 07, 2015
2D CAD for MGate MB3170-ST241.8 KB2D CADJan 07, 2015
2D CAD for MGate MB3170-SC241.1 KB2D CADJan 07, 2015
Tech Note: How to Configure WinCC with MGate MB30003.5 MBTech Notev1.0Jan 06, 2015
Tech Note: How to Configure KingSCADA with MGate MB30002.7 MBTech Notev1.0Jan 06, 2015