Before you begin, be sure you have the following: Serial Adapter Cable, DB9F to DB25M, 6 in. (15 cm) + 422TTL Port-Powered Converter # 232CAMS + 12 VDC Power Supply (required, sold separately) 1-888-948-2248 | Europe: +353 91 792444 advantech-bb.com...
Product Overview Pinouts Polarity Model 422TTL inverts the TTL signal. To determine Pin 7 is signal ground for both connectors (see diagram RS-422 / EIA-530 polarity, refer to the table below . below). DB25 Female Port Model 422TTL - Polarity (Volts) Open pads are provided for each line.
Need help?
Do you have a question about the 422TTL and is the answer not in the manual?
Questions and answers