Description
The product with the part number 778475-01 falls under the category of PC-based Serial interfaces, specifically model USB-485. This model is described as a 1-port USB to RS485 Serial Interface with a cable length of 2 meters. It adheres to the interface standards of RS-422 and RS-485, making it versatile for various serial communication needs.
It is compatible with older operating systems, including Windows 2000 and Windows XP, ensuring support for legacy systems. The device can support a maximum of 31 devices connected simultaneously, offering a substantial network size for serial communication. With a maximum transfer rate of 460.8 kb/s, it ensures efficient data transmission across connected devices.
One of the standout features of this model is its software selectable biasing, which can be turned on or off for each port, providing flexibility in managing signal integrity. The model is compatible with various development environments, including Visual Basics, Visual C++, Excel, and LabVIEW, ensuring that developers can easily integrate it into their projects.
The physical connection is facilitated by a DB-9 male I/O connector and a USB series A plug connector, offering easy and reliable connections. It operates efficiently with a power requirement of 175 mA typically, and up to 500 mA maximum at +5 VDC. Despite its powerful capabilities, it maintains a light weight of 0.26 lb and compact dimensions of 1.5 x 1.4 x 0.6 inches, making it highly portable and easy to integrate into existing setups.
The device operates within a temperature range of 0 to 70 degrees Celsius and can be stored in temperatures ranging from -40 to 80 degrees Celsius. It is designed to operate in environments with relative humidity of 10% to 90% (non-condensing) and can be stored in conditions with 5% to 95% RH (non-condensing), ensuring durability and reliability in varied conditions. The
| Specification | Details |
|---|---|
| Part Number | 778475-01 |
| Category | PC-based Serial |
| Model | USB-485 |
| Description | 1-port USB to RS485 Serial Interface, 2m |
| Interface Standards | RS-422, RS-485 |
| Compatible OS | Windows 2000, Windows XP |
| Maximum Devices Supported | 31 |
| Maximum Transfer Rate | 460.8 kb/s |
| Software Selectable Biasing | On/Off for each port |
| Development Environments | Visual Basics, Visual C++, Excel, LabVIEW |
| Connectors | DB-9 male I/O connector, USB series A plug connector |
| Power Requirement | 175 mA typical, 500 mA max at +5 VDC |
| Weight | 0.26 lb |
| Dimensions | 1.5 x 1.4 x 0.6 in |
| Operating Temperature Range | 0 to 70 degrees Celsius |
| Storage Temperature Range | -40 to 80 degrees Celsius |
| Relative Humidity (Operating) | 10% to 90% (non-condensing) |
| Relative Humidity (Storage) | 5% to 95% RH (non-condensing) |
| Safety Standards | IEC 61010-1, EN 61010-1, UL 61010-1, CSA 61010-1 |
Question 1: What is the part number for the USB-485 interface?
Answer 1: 778475-01
Question 2: What OS is compatible with the USB-485?
Answer 2: Windows 2000/XP
Question 3: How many devices can the USB-485 support?
Answer 3: Up to 31 devices
Question 4: What is the USB-485’s max transfer rate?
Answer 4: 460.8 kb/s
Question 5: What kind of connectors does the USB-485 use?
Answer 5: DB-9 male and USB series A



