422TTLx-0812ds page 1/2 2008 B&B Electronics. All rights reserved 422TTL & 422TTL33 Four Channel RS-422 / EIA-530 to TTL Converter Converts two RS-422 channels in each direction Open pads to change pin configuration 5V and 3.3V TTL Specifications The 422TTL and 422TTL33 convert RS-422 or Serial Technology RS-422 (EIA-530 TDA(-), TDB(+), RDA (-), RDB (+) EIA-530 signals to TTL at data rates up to 115.2 Kbps. Pin-out) RTS A(-), RTS B (+), CTS A (-), CTS B (+) Two channels are used to convert RS-422 to TTL and TTL TD, RD, RTS, CTS TTL Level 5VDC or 3.3VDC two channels are used to convert TTL to RS-422. Data Rate Up to 115.2 Kbps RS-422 Connector DB25 Female Select the 422TTL for 5 VDC TTL or the 422TTL33 for TTL Connector DB25 Male 3.3 VDC TTL. A DB25 Male connector is used on the Polarity (Volts) RS-422 / EIA-530 Output TTL side and a DB25 Female connector is used on the TTL Input V (A) V (B) High Negative RS-422 / EIA-530 side. The converters support RD, Low Positive TD, RTS, and CTS. RS-422 / EIA-530 Input TTL Output V (A) V (B) Pin 7 is signal ground for both connectors. These High Negative Low Positive units can work at baud rates up to 115.2 Kbps. Open Power pads are provided for each line. Therefore, if you Source External (2.5 mm Positive Tip) Input Voltage 12 VDC (<100 mA) choose to, you can change the pin connectors for any Mechanical of the 4 channels. Dimensions 2.1 x 2.2 x 0.7 in (5.4 x 5.6 x 1.7 cm) When converting a second RS-422 channel, use Regulatory Approvals FCC, CE (Declaration available for the corresponding RTS A and RTS B pins (refer to the Download) diagram on the next page). Ordering Information 422TTL RS-422 to 5V TTL Converter These converters invert the TTL signal. Refer to 422TTL33 RS-422 to 3.3V TTL Converter Accessories (Not Included) the specifications table to determine polarity. 422PS Power Supply, 12VDC, 100mA 2.5mm Positive Tip Jack An external +12 VDC power supply is required (not included). www.bb-elec.com orders bb-elec.com support bb-elec.com International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445 PRODUCT INFORMATION B&B ELECTRONICS 422TTLx-0812ds page 2/2 2008 B&B Electronics. All rights reserved www.bb-elec.com orders bb-elec.com support bb-elec.com International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445 PRODUCT INFORMATION B&B ELECTRONICS