232TTL

232TTL Datasheet

232TTL-0812- 1/2

Part	Datasheet
232TTL	232TTL (pdf)

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B&B ELECTRONICS 232TTL-0812- 1/2 2004 by B&B Electronics. All rights reserved. 0BModel 232TTL Four-Channel RS-232 to TTL Converter The 232TTL converts RS-232 to TTL levels. Two channels are used to convert from RS-232 to 0 to +5 VDC TTL signals and two channels are used to convert from 0 to +5 VDC TTL signals to RS-232. This converter supports RD, TD, RTS, and CTS. The DB25P male connector DCE is for the RS-232 side. The DB25S female connector is for the TTL side. The pins used are: DB25P Male RS-232 DB25S Female TTL Function 2 input 9 3 output RD............................. 14 4 input RTS............................ 16 5 output CTS............................ 23 output input output input Pin 7 is signal ground for both connectors. The unit can work at baud rates up to 115K baud. On the RS-232 side, pins 8 DCD , 20 DTR , and 6 DSR are connected to open pads, if you would rather use these instead of the given RS232 lines. Another feature is that the TTL and RS-232 pins can be changed by connecting wires from the pins you want to pads that have been provided. The unit needs a +12VDC power supply 100 mA approx. . A power supply is available from B&B Electronics. It is important that TTL logic, and only TTL logic 0 to +5 VDC is used for the TTL side of the converter. The maximum sinking current for one TTL output is mA. The maximum source current for one TTL is 1 mA. Signal levels are inverted by the converter. Please refer to table below. TTL Input low high TTL Output low high Polarity RS-232 Output positive negative RS-232 Input positive negative Units volts Units volts DECLARATION OF CONFORMITY Manufacturer’s Name: B&B Electronics Manufacturing Company Manufacturer’s Address: P.O. Box 1040 707 Dayton Road Ottawa, IL 61350 USA Model Numbers: 232TTL Description: Four Channel RS-232 to TTL Converter Type: Light industrial equipment Application of Council Directive 89/336/EEC Standards: EN 55022 EN 61000-6-1 EN 61000 -4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11

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B&B ELECTRONICS
232TTL-0812- 1/2
2004 by B&B Electronics. All rights reserved.
0BModel 232TTL

Four-Channel RS-232 to TTL Converter

The 232TTL converts RS-232 to TTL levels. Two channels are used to convert from RS-232 to 0 to +5 VDC TTL signals and two channels are used to convert from 0 to +5 VDC TTL signals to RS-232. This converter supports RD, TD, RTS, and CTS. The DB25P male connector DCE is for the RS-232 side. The DB25S female connector is for the TTL side. The pins used are:

DB25P Male RS-232

DB25S Female TTL

Function
2 input 9 3 output RD............................. 14 4 input RTS............................ 16 5 output CTS............................ 23
output input
output input

Pin 7 is signal ground for both connectors. The unit can work at baud rates up to 115K baud. On the RS-232 side, pins 8 DCD , 20 DTR , and 6 DSR are connected to open pads, if you would rather use these instead of the given RS232 lines. Another feature is that the TTL and RS-232 pins can be changed by connecting wires from the pins you want to pads that have been provided. The unit needs a +12VDC power supply 100 mA approx. . A power supply is available from B&B Electronics.

It is important that TTL logic, and only TTL logic 0 to +5 VDC is used for the TTL side of the converter. The maximum sinking current for one TTL output is mA. The maximum source current for one TTL is 1 mA. Signal levels are inverted by the converter. Please refer to table below.

TTL Input
low high

TTL Output
low high

Polarity

RS-232 Output
positive negative

RS-232 Input
positive negative

Units
volts

Units
volts

DECLARATION OF CONFORMITY

Manufacturer’s Name:

B&B Electronics Manufacturing Company

Manufacturer’s Address:

P.O. Box 1040 707 Dayton Road Ottawa, IL 61350 USA

Model Numbers:
232TTL

Description:

Four Channel RS-232 to TTL Converter

Type:

Light industrial equipment

Application of Council Directive 89/336/EEC

Standards:

EN 55022 EN 61000-6-1 EN 61000 -4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11

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Datasheet ID: 232TTL 521483