MOXA 1250-G2 USB to Serial Converter

Overview

Moxa’s USB-to-serial products provide a wide range of easy-to-use solutions for adding Windows COM ports, macOS, and Linux tty ports through a USB port of a computer. The UPort 1200-G2 Series comprises the following models:

2-port Models

167°F)
UPort 1250I-G2| RS-232/422/485 USB-to-serial converter with isolation protection| 0 to 60°C (32 to 140°F)
UPort 1250I-G2-T| RS-232/422/485 USB-to-serial converter with isolation protection| -40 to 75°C (-40 to 167°F)

Package Checklist

After opening the box, verify that the package contains the following items:

• 1 UPort 1200-G2 USB-to-serial converter
• 1 USB cable with latch, CBL-USB3-BA-G-120, hook and screw, 1.2m
• Quick installation guide (printed)
• Warranty card (printed)

NOTE Notify your sales representative if any of the above items are missing or damaged.

Accessories

WARNING
This product is intended to be supplied by an approved external power source (UL listed/IEC 60950-1/IEC 62368-1), which output complies with ES1/SELV, PS2/LPS, output rating 5 VDC, 1 A minimum (by USB port), and ambient temperature of 75°C minimum. If further information or help is needed, please contact your Moxa representative. If a Class I power source is used, the power cord should be connected to a socket outlet with an earthing connection.

Cables

• CBL-USB3-BA-G-120: USB 3.2 Gen 1 cable with latch, 1.2 M
• CBL-USB3-BA-G-028: USB 3.2 Gen 1 cable with latch, 0.28 M
• CBL-USB3-BA-B-120: Standard USB 3.2 Gen 1 cable, 1.2 M

DIN-rail Kits:

• DK-UP1200, 2 WK-35-02 wall-mount plates, and 2 DK35A DIN-rail plates

Wall-mounting Kits:

• WK35A: 2 WK-35-02 plates (35 x 24 x 1.2 mm) with 6 screws (FTSx6 M3x4 mm)

Adapters:

• LB-DB9F-G-01: Serial loopback adapter
• ADP-RJ458P-DB9F: DB9F-to-RJ45 adapter
• Mini DB9F-to-TB: DB9F-to-TB adapter

Hardware Introduction

USB Cable Usage Guide

The new Moxa latch USB cable comes with a latch on each side of the Type-A connector and a screw on the Type-B connector.

Plugging in the USB Cable Using the Type A Connector

To plug in the USB cable to the host computer and secure it, do the following:

Step 1: Press both latches on the connector.

Step 2: Plug the connector into the USB slot.

Removing the USB Cable

Step 1: Press both latches on the USB cable connector hard so that they are pushed to the maximum.

Step 2: Unplug and pull out the cable 90 degrees horizontal to the USB socket.

ATTENTION

Be cautious when plugging in or out the latch connector.

1. When the cable is plugged into a host computer or pulled out every time, always press both latches. Then, plug the connector into the receptacle on your computer or vice versa.
2. If the type A connector doesn’t come off easily, DO NOT pull the cable out by force as it will deform the hook on the connector, and you may not be able to use the cable again.
   Try again by pushing the latch hard and shake the connector left to right gently.

NOTE The latch cable locks to most USB slots on computers;
however, there may be some slots that are designed with a slight marginal difference, which may cause the latch not to lock to your computer’s USB slots perfectly.

Plugging in a USB Cable to the Host Computer Using Type B Connector

The screw on the side of type B connector is for fixing the cable firmly to the UPort. Please remember to swivel the bolt after plugging in and before pulling out the connector.

Step 1: Plug in type B connector.
Step 2: Swivel the bolt about five rounds.
![Plugging in a USB Cable to the Host Computer Using Type B

Connector](https://manuals.plus/wp-content/uploads/2024/05/MOXA-1250-G2-USB- to-Serial-Converter-Installation-Guide-9.png)

Pulling out a USB cable from the host computer

Step 1: Swivel the bolt about five rounds until it becomes loose.
Step 2: Pulling out type B connector.

LED Indicators

The LED indicators on the front panel are used to display the status as follows:

of operation

Serial Port Pin Assignments

The serial ports on the UPort 1200-G2 have DB9 male connectors. Refer to the following table below for the RS-232 and RS-422/485 pin assignments.

NOTE For the UPort with DB9 male serial ports, you may refer to the Serial Port Pin Assignments section to loop back pin 2 and pin 3 for the RS-232 interface to carry out a self-test on the device.
You may refer to Communication Testing in the Software Installation section in this document for how to use the loopback connector in the box to perform the communication test.

Adjustable Pull High/low Resistors for the RS-485 Port

The UPort uses DIP switches to set the pull high/low resistor values for each serial port.

To set the pull high/low resistors to 150 KΩ , make sure both SW 1 and SW 2 switches are in the OFF position. This is the default setting.
To set the pull high/low resistors to 1 KΩ , make sure both SW 1 and SW 2 switches are in the ON position.

To set the termination on, SW 3 should be set to the ON position.

ATTENTION
Do not use the 1-kΩ setting on the UPort when using an RS232 interface. Doing so will degrade the RS-232 signals and
shorten the maximum allowed communication distance.

DIP Switches Location

Software Installation

To install the UPort driver, please follow the installation procedure described in the Mounting the UPort 1200-G2 section. UPort converters can be connected to any upstream type A USB port that is on the PC host or an upstream hub. UPort converters are hot-pluggable, so there is no need to power down your computer prior to installation.

After successfully installing the UPort, you can use the operating system’s device manager to check and/or change the port settings. In Windows, the new COM port will be listed under Ports (COM & LPT).

Installing the Windows Driver

Download and run the Setup program from the UPort’s product page and follow the installation steps.

A few things to note:

1. We recommend also installing companion utilities for future use.
   For an introduction of the utility, refer to the User Manual.
   

2. After successfully installing the driver, connect the UPort to your computer. Then, click Scan to review the installation results and confirm that the UPort is connected to your computer.
   

3. Check Launch Windows Driver Manager to configure the UPort after the setup is completed.
   

4. If you have installed View COM , you can mouse over the View COM icon in the system tray to see the relevant COM port information.

5. The right-click context menu has the shortcut to Windows Device Manager and Auto Startup utilities if needed.

For configuration details, check the COM Port Configuration section in the User Manual.

Installing the Linux Driver

Run the following commands from the Linux prompt:

CD /moxa

tar xvfz moxa-uport-1200-1400-1600-series-linux-kernel- [kernel

version]-driver-v[driver version].tgz

Find the Make file file in /moxa/mxuport and run the commands:

make install

mod probe mxuport

For further information, refer to the User Manual or the readme.txt that comes with the driver package.

Installing the Linux Driver for Arm-based Platforms

Please refer to the Tech Note: UPort Driver Arm-based Platform Porting Guide on the product page or the readme.txt that comes with the driver package.

Installing the macOS Driver

For macOS 10.12 and later, follow the steps below to install the driver:

1. Enter recovery mode.
2. Disable System Integrity Protection (SIP) by running the csrutil disable command from the terminal.
3. Return to normal mode.
4. Launch the UPort driver installer and complete the installation procedure.
5. Re-enter the recovery mode.
6. Enable System Integrity Protection (SIP) by running the csrutil enable command from the terminal.
7. Return to normal mode.

For detailed instructions, please refer to the User Manual on the product page or the readme.txt that comes with the driver package.

Communication Testing

There are Moxa companion utilities for serial communication testing.
For this purpose, you may use PComm Terminal. For other useful utilities, please refer to the UPort’s User Manual for an introduction.

Mounting the UPort 1200-G2

Dimensions

Unit = mm (inches)

Wall Mounting

The mounting kit is 2 mm in height, and the two centers of the mounting kit on each plate are 91 mm (3.58 in).

First, attach the brackets to the bottom of the UPort 1200-G2 with screws, where the circles show. The recommended screw tightening torque: 4.5 kgf-cm +/- 0.5, screw type: type F, PH2. Next, mount the unit to a wall with the screws.

Screws should be less than 3.5 mm in head diameter and less than 3.0 mm in shaft diameter.

Screw information:

DIN-rail Mounting

The UPort 1200-G2 models have a DIN-rail kit option, – DK35A, allowing installation on a DIN rail. DIN-rail attachments can be purchased separately to attach the product to a DIN rail.

First, attach the wall-mount brackets to the bottom of the UPort 1200- G2 with screws. Then, attach the DIN-rail attachments to the wall mount kit with screws, as shown by the circles in the figure below. The recommended screw type is M3, 4 mm in length, tightening torque: 4.5 kgf-cm +/- 0.5, screw type: type F, PH2; 4 screws.

Screws should be less than 5 mm in head diameter and less than 3.0 mm in shaft diameter.

Next, mount the UPort 1200-G2 onto the mounting rail.

STEP 1: Insert the upper lip of the DIN-rail kit into the mounting rail.

STEP 2: Press the UPort 1200-G2 towards the mounting rail until it snaps into place.

STEP 1:
Pull down the latch on the DIN-rail kit.
STEP 2 & 3:
Slightly pull the UPort 1200-G2 forward and lift it up to remove it from the mounting rail.

Screw information:

Product Specifications

USB Interface

Standard| USB 3.2/2.0/1.1 compliant

5 Gbps (SuperSpeed USB), 480 Mbps (Hi-Speed USB) and 12 Mbps (Full-Speed USB)

Upstream| 1 USB port, Type B connector
Downstream| 2 serial ports, DB9 connectors
Physical Characteristics
Housing| Metal (SECC) + Aluminum
Environmental Limits
Operating
Temperature| Standard Models: 0 to 60°C (32 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Operating Humidity| 5 to 95% RH
(For use in Pollution Degree 2 environments)
Storage
Temperature| -40 to 75°C (-40 to 167°F)
Power Requirements

 | USB 2.0 bus power
(500 mA)| USB 3.2 bus power
(900 mA)
UPort 1250-G2| P| P
UPort 1250I-G2| P| P

Power Consumption
 | 5 V @ USB 2.0| 5 V @ USB 3.2
UPort 1250-G2| 160 mA| 320 mA
UPort 1250I-G2| 240 mA| 400 mA

Regulatory Approvals
EN IEC 61000-4-4, EN IEC 61000-4-5, EN IEC 61000-4-6,
EN IEC 61000-4-8, EN IEC 61000-4-11, EN IEC 61000-6-2,
EN IEC 61000-6-4
FCC Part 15B Class A, IEC/EN/UL 62368-1, LVD, KC
Warranty
Warranty Period| 5 years
Details| See www.moxa.com/warranty

The latest specifications for Moxa’s products can be found at https://www.moxa.com.

Certifications

CE Warning

This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take appropriate measures.

Federal Communications Commission Statement

FCC – This device complies with part 15 of the 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 operation.

FCC Warning

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the  instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

KC Certification

(This equipment has KC approval for use in industrial environments and could possibly interfere with household equipment.)

Class A Equipment (Broadcasting and Communication Equipment for Industrial and Commercial Use)| This equipment is the EMC conformity equipment (Class A) for Industrial and Commercial Use. The seller or user should take note of this as this equipment can be used in places that exclude homes.
Class B Equipment (Broadcasting and Communication Equipment for Home Use)| This equipment is the EMC conformity equipment (Class B) for Home Use and can be used mainly at homes, as well as in other areas.

CUSTOMER SUPPORT

Technical Support Contact Information
www.moxa.com/support
© 2024 Moxa Inc. All rights reserved.

References

• Moxa - Support
• Moxa - Your Trusted Partner in Automation

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