Skip to main content

B&B Port-Powered RS-232 to RS-422 Converter

Part #: 1-629680

B&B Port-Powered RS-232 to RS-422 Converter

Part #: 1-629680 MFG Part #: 422LP25R UPC #: 835788111057
$97.00 $85.32
Save $11.68
OUT OF STOCK

0 Available

(as of May 30, 2026 2:23 AM) Refresh Inventory
FREE SHIPPING ON ORDERS OVER $100

Free shipping on most items when you spend $100

AUTHORIZED DEALER
AUTHORIZED DEALER
AUTHORIZED DEALER

AUTHORIZED DEALER

Protect your investment ()

About the B&B 422LP25R

This RS-232 to RS-422 converter converts unbalanced RS-232 signals to balanced RS-422 signals. The power used for this converter is derived from the transmit data line (pin 2) and the handshake control lines (pins 4, 5, 6, 8, and 20). The converter can derive power from these lines when they are in the positive or negative voltage state. This permits the converter to be used in applications without any regard to software control of the handshake lines. If no handshake lines are available and all power must be derived from the transmit data line, the converter can drive limited cable lengths. A guide for this condition would be to drive only several hundred feet of transmission line and not to terminate the transmission line with a resistor of less than 1000 ohms. When more handshake lines are available longer lengths of cable can be driven. This converter has been tested at 115.2k baud with 4000 feet of cable. For applications where handshake lines are not available and long cable runs are involved, an external power supply can be connected to the male connector on the RS-422 side of the converter on pins 12 (Gnd) and 25 (+12).

This RS-232 to RS-422 converter converts unbalanced RS-232 signals to balanced RS-422 signals. The power used for this converter is derived from the transmit data line (pin 2) and the handshake control lines (pins 4, 5, 6, 8, and 20). The converter can derive power from these lines when they are in the positive or negative voltage state. This permits the converter to be used in applications without any regard to software control of the handshake lines. If no handshake lines are available and all power must be derived from the transmit data line, the converter can drive limited cable lengths. A guide for this condition would be to drive only several hundred feet of transmission line and not to terminate the transmission line with a resistor of less than 1000 ohms. When more handshake lines are available longer lengths of cable can be driven. This converter has been tested at 115.2k baud with 4000 feet of cable. For applications where handshake lines are not available and long cable runs are involved, an external power supply can be connected to the male connector on the RS-422 side of the converter on pins 12 (Gnd) and 25 (+12).

Technical Specifications of the B&B 422LP25R

General Information


Manufacturer Advantech Co., Ltd
Manufacturer Part Number 422LP25R
Manufacturer Website Address http://www.advantech.com
Brand Name B+B SmartWorx
Product Model 422LP25R
Product Name Port-Powered RS-232 to RS-422 Converter
Product Type Data Transfer Adapter

Technical Information


Adapter Type Serial
Connector Type on First End DB-25 RS-232 Serial - Female
Connector on First End Details 1 x 25-pin DB-25 RS-232 Serial Female
Connector Type on Second End DB-25 RS-422 Serial - Male
Connector on Second End Details 1 x 25-pin DB-25 RS-422 Serial Male

Miscellaneous


Certifications & Standards
  • CE
  • EN 55022
  • EN 61000-6-1
  • EN 61000 (-4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11)
  • 15 of The FCC

Warranty


Limited Warranty Lifetime

Ratings and Reviews

Do you own the B&B 422LP25R?
Be the first to write a review!
Displaying 1-10 of 70
Page size: