Model: RS232IT, Full-duplex RS232 to TTL/CMOS interface converter for local communications, and data rates up to 115.2Kbps.


GENERAL DESCRIPTION and TYPICAL APPLICATIONS:

The RS232IT is a fast Async bi-directional RS232 to TTL/CMOS interface converter that will operate at data rates up to 115.2Kbps. The unit has jumpers power source selection (+5VDC or 8-12VDC) and, RS232 DTE/DCE selection. The unit has two RJ11/12 connectors an a pin header for power, common TTL/CMOS TX data and RX data.

The RS232IT is designed for office and/or indoor applications (non-isolated). Can be used to add an RS232 port to a TTL/CMOS microprocessor.
Download:
RS232IT.pdf Converter schematic


Click on the image for a larger view:

RS232IT Boxed
 

PHYSICAL PROPERTIES and FEATURES:

RS232: 3-wire interface to RJ11/12 Connector (TX, RX, Common).
TTL/CMOS: Pin header or RJ11/12 connector.
Power: 2.1mm center positive "Barrel" connector (9VDC)), linear regulator.
LEDs None.
Bias: 10K Ohm pull-up on TTL/CMOS side of interface.
Termination: N/A.
Special: Jumper selection for power source.
Protection: None.

SPECIFICATIONS:

Distance: About 50 ft.
Operation: Full-duplex.
Format: Asynchronous with any combination of bits, parity and stop.
Speed: Up to 115.2Kbps.
Temperarure:   0-65C (32-150F) ambient.
Humidity: 10-90% non-condensing.
Voltage: 8-12VDC or 5VDC
Power: Under 1/2 Watt (typical) + external load
Size: 2.50" X 2.00" X 0.9" (PC Board)
Mounting: 4-Holes 2.00" X 1.50" (built-in standoffs for #6 hardware)

OPTIONS AND ORDERING INFORMATION: (MODEL RS232IT):

RS232IT: $29.00 ea. (Circuit board only).
Enclosure: $8.00 ea. (Small).
Cable: $7.50 ea. (RS232, 7 ft., Specify DB9F-7 or DB25F-7).   
Supply: $8.50 ea. (12VDC @ 200/300 mA wall power supply).

*RS232IT with all options (DB9F cable): RS232IT-B9FPS @ $53.00 ea. (Qty. 1-9)

Please call us at: 513-874-4796

Contact Information:
R.E. Smith
10330 Chester Rd., Cincinnati, Ohio 45215
Phone: 513-874-4796
Fax: 513-874-1236
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