 
                
			
			
				| Services Available | |
|---|---|
| Repair | No | 
| Free Support | Yes | 
The SC-USB allows Campbell Scientific data loggers to communicate directly with computers that have a USB interface. The SC-USB is optically isolated, which helps eliminate noise pickup associated with PC power supplies and ground connections. The SC-USB can be used in place of an SC32B interface.
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							The SC-USB Optically Isolated Interface is used to connect a data logger's CS I/O port to a PC's USB port. Multiple devices can be connected to the SC-USB in parallel. Because the connection is optically isolated, the SC-USB interface can replace an SC32B/USB converter combination. Optical isolation helps eliminate noise pickup associated with PC power supplies and ground connections.
The SC-USB supports synchronous high-speed data transfer for up to 1 Mbps (when supported by data logger). Asynchronous communication is supported from 9600 to 115200 bps. The USB transfer rate is up to 12 Mbps.
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
| Product | Compatible | Note | 
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR1000 (retired) | ||
| CR10X (retired) | ||
| CR200X (retired) | ||
| CR211X (retired) | ||
| CR216X (retired) | ||
| CR23X (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR6 | ||
| CR800 (retired) | ||
| CR800 (retired) | ||
| CR800 (retired) | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) | ||
| CR9000X (retired) | 
The SC-USB uses USB version 1.1.
The PC drivers support Windows 2000, XP, Vista, 7, 8, and 10 operating systems.
| Power | Drawn from the PC and data logger | 
| CS I/O Port | Opto-isolated (signal isolation only) from the PC’s USB port to 47 Vac or dc | 
| Operating Temperature Range | -25° to +50°C | 
| Cable Description | Type-A male to type-B male | 
| Campbell Scientific Protocols Supported | 
 | 
| Cable Length | 1.8 m (6 ft) | 
| Dimensions | 7.5 x 4 x 2 cm (3 x 1.6 x 0.8 in.) | 
| Weight | 85 g (3.0 oz) | 
| Current Drain | |
| Drawn from Data Logger | 
 | 
| Drawn from PC | 
 | 
| Communication Rates | |
| Asynchronous | 9600 bps to 115 kbps | 
| Synchronous | Up to 1 Mbps | 
Current version of the SC-USB firmware. The SC-USB utility is used to update the firmware in the SC-USB.
Number of FAQs related to SC-USB: 2
Communication through the datalogger’s CS I/O port requires an interface that converts the computer’s RS-232 voltage levels to the CMOS levels of the datalogger. Typically, that interface is an SC32B. The SC32B connects to the datalogger’s CS I/O port via an SC12 or serial cable and connects to a computer’s 9-pin serial port via a serial cable. When the computer does not have a serial port, a 9-pin serial-to-USB cable, such as pn 17394, can be used with the SC32B. Alternatively, instead of the SC32B, use the SC-USB.
There are several options:
If the datalogger being used has an RS-232 port, only a serial cable is needed. It is not necessary to use the SC32B unless there is another device connected to the RS-232 port or there are concerns about low-level noise from a permanently connected, ac-powered computer.