USB Serial
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$21.99 As low as: $19.71The GM-1011-B is an RS-232 serial port optoelectronic isolator. It adopts advanced optoelectronic isolation technology, maximally protects RS-232 serial interface devices from bad environment damage, such as ground loop circuit voltage, surge, lightning, ESD, hot-plug and electromagnetic interference, etc.
- Standards: RS-232 & CCITTV.24 asynchronous protocol
- Power: from RS-232(TXD, RTS or DTR)
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$17.59 As low as: $16.53The GM-1004E-B converts RS-232 signals into balanced differential RS-485 signals. The converter is designed to protect the RS-485 port; with integrated TVS’s (TRANSIENT VOLTAGE SUPPRESSOR).
- Transmission media: twisted-pair or shielded cable
- Baudrate: 300ps-115.2kbps
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$20.89 As low as: $19.64The GM-1004E-B converts RS-232 signals into balanced differential RS-485 signals. The converter is designed to protect the RS-485 port; with its advanced TVS’s (TRANSIENT VOLTAGE SUPPRESSOR).
- Transmission media: twisted-pair or shielded cable
- Isolation: Isolated voltage 2,500Vrms 500VDC non-stop
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$54.95RS232 to TTL CMOS Conversion
Conveniently convert to TTL from RS232 with this RS232 to TTL CMOS conversion adapter, it supports standard RS232 signals and does not require any additional power source once connected.
- Provides one RS232 to TTL/CMOS adaption
- Supports 5V and 3.3V Tolerance Signals
- Very compact
- Supports baud rate up to 115.2 Kbps
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$19.90 As low as: $18.71Out of stock
Professional grade USB to RS485 Converter optimized for Windows 7/8/10 and Server 2003/2008. High-Speed and Interface compliance,USB1.1,2.0,3.0, EIA/TIA RS-485. Learn More -
$71.38Surge protection and optical isolation RS 422/485 DB9 male ports Speed up to 921.6kbps no external power supply Supports Windows 7 and Vista (32 and 64-Bit) Overview Isolated industrial serial ports on USB connect RS-422 and RS485 devices, used in industrial environment. Learn More -
$49.45Industrial serial ports on USB connect RS-422 and RS485 devices, used in industrial environment. With RS-485 the data direction is controlled by the port, without further action from the software. Learn More -
$54.98 As low as: $51.68Optically Isolated Industrial USB to RS485 / RS422 serial adapter that is designed with DB-9, RJ45, and Terminal Screw Output interfaces. Used in serial applications such as serial printers, scanners, GPS, and consumer equipment. Learn More -
$32.75USB to RS-485 / RS-422 Converter contains an FTDI Chip with terminals photoelectric interface can convert the single ended USB signal into difference RS-422 or RS-485 signal. The converter includes Transient Voltage Suppressor technology! Learn More -
$109.76USB to RS-232/422/485 Adapter with Optical isolation with 2000 volts DC & surge protection. Built-n ESD protection up to 25KV. Learn More
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5.0 out of 5 stars
Very convenient cable.
I got this cable to lengthen a USB cable that was just a bit too
(Review by Gary Pfalzbot) -
5.0 out of 5 stars
Works like it should..
I'm using this to power my T-Mobile modem in my camper off the 12V house
(Review by Larry P) -
5.0 out of 5 stars
Perfect!.
Just what I needed.
(Review by John)