Grzegorzbecker: /* Power */

2024-11-02T09:48:54Z

Power

← Older revision		Revision as of 09:48, 2 November 2024
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	=====Power =====		=====Power =====
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	! style=‘text-align: center;’\|Connector		! style=‘text-align: center;’\|Connector

Grzegorzbecker: Created page with "jzpdf ====== Description ====== [https://kamami.pl/konwertery-usb---uart--rs232/1189265-kamod-rs232h-mini-miniaturowy-konwerter-rs232ttl-typu-dtehost-5906623432943.html KAmod RS232H-mini] is a miniature RS232 to TTL converter that contains all RS232 interface signals: RXD, TXD, DTR, DSR, RTS, CTS, DCD and RI. The direction of signal conversion is assigned in such a way that it corresponds to the DTE/Host type device (master device, TXD is the RS232 signal outp..."

2024-11-02T09:47:50Z

Created page with "__jzpdf__ ====== Description ====== [https://kamami.pl/konwertery-usb---uart--rs232/1189265-kamod-rs232h-mini-miniaturowy-konwerter-rs232ttl-typu-dtehost-5906623432943.html KAmod RS232H-mini] is a miniature RS232 to TTL converter that contains all RS232 interface signals: RXD, TXD, DTR, DSR, RTS, CTS, DCD and RI. The direction of signal conversion is assigned in such a way that it corresponds to the DTE/Host type device (master device, TXD is the RS232 signal outp..."

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__jzpdf__
====== Description ======
[https://kamami.pl/konwertery-usb---uart--rs232/1189265-kamod-rs232h-mini-miniaturowy-konwerter-rs232ttl-typu-dtehost-5906623432943.html KAmod RS232H-mini] is a miniature RS232 to TTL converter that contains all RS232 interface signals: RXD, TXD, DTR, DSR, RTS, CTS, DCD and RI. The direction of signal conversion is assigned in such a way that it corresponds to the DTE/Host type device (master device, TXD is the RS232 signal output, RXD is the RS232 signal input). The converter has a typical DB9 male connector on the RS232 side and 2.54 mm goldpins on the TTL side. It can operate at a voltage of 3...5.5 V.
<center>
[[File:KAmod RS232H-mini 1.jpg|450px]]
[[File:KAmod RS232H-mini 3.jpg|450px]]
</center>

===== Basic parameters =====
* RS232 to TTL standard converter, containing all 8 signals
* Based on MAX3243/SP3243
* Voltage on the TTL side 3...5.5 V
* Maximum transmission speed: 250 kbps
* ESD protection up to 15 kV HBM on the RS232 side
* Signal conversion direction assigned in such a way that it corresponds to the master device, type DTE/Host (TXD is RS232 output, RXD is RS232 input)
* Standard DB9 connector (D-SUB 9) male
* 2.54 mm goldpins on the TTL side for easy connection to evaluation boards
* Power supply 3...5.5 V, approx. 20 mA
* Board dimensions 24x30 mm (31x30 with DB9 connector), height approx. 17 mm

===== Standard equipment =====

<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|Code
! style="text-align: center;"|Description
|-
| style="text-align: center;"|KAmod RS232H-mini
| style="text-align: left;"| Assembled and launched module
|}
</center>

===== Electrical diagram =====
<center>
[[File:KAmodRS232H-mini_sch.jpg|none|1000px|thumb|center]]
</center>

===== Functional diagram =====
The RS232 standard is used for digital communication in serial mode, and because in addition to the data transmission line it contains lines for controlling and controlling communication, it provides a stable connection resistant to interference. The voltages on the RS232 interface lines have values from ±7 V to ±15 V, therefore connection to a classic TTL digital system, whose signals take values of 0/3.3 V or 0/5 V requires the use of an appropriate converter, such as KAmod RS232H-mini. 
The direction of signal conversion for all 8 signals is assigned in such a way that it corresponds to the master device - DTE/Host. The functional diagram shows which signals act as inputs and which as outputs on the TTL and RS232 sides.
<center>
[[File:KAmodRS232H-mini_func.jpg|600px]]
</center>
On the converter board, on the lower description layer, there are precise markings for each signal on each connector:
<center>
[[File:KAmodRS232H-mini_opis-bottom.jpg|300px]]
</center>

=====TTL connector (LOGIC I/O) =====
<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|Connector
! style="text-align: center;"|Function
|-
| style="text-align: center;"|LOGIC I/O
1x10 goldpin pins, 2.54 mm
| style="text-align: left;"|
* All RS232 interface signals adapted to the TTL standard are led out
|}
</center>
The LOGIC I/O connector allows you to connect the KAmod RS232H-mini converter with any digital system operating with a voltage of 3...5.5 V. The functions of the individual pins are as follows:
:* pin no. 1 - TTL output; DCD signal - Data Carrier Detect (signal detecting the carrier wave by the modem);
:* pin no. 2 - TTL output; RXD signal - Receive Data Line (data stream received from RS232, sent to DTE/Host);
:* pin no. 3 - TTL input; TXD signal – Transmit Data Line (data stream input from DTE/Host);
:* pin no. 4 - TTL input; DTR signal – Data Terminal Ready (readiness of DTE/Host for further cooperation with DCE/Modem);
:* pin no. 5 - ground, GND;
:* pin no. 6 - TTL output; DSR signal – Data Set Ready (readiness of DCE/Modem for further cooperation with DTE/Host);
:* pin no. 7 - TTL input; RTS signal – Request To Send (request to transmit data reported by DTE/Host);
:* pin no. 8 - TTL output; CTS signal – Clear To Send (readiness to transmit reported by DCE/Modem - confirms receipt of RTS signal);
:* pin no. 9 - TTL output; RI signal - Ring Indicator, a "ringing" signal generated from the modem;

:* pin no. 10 - 3...5.5 V power input.

<center>
[[File:KAmodRS232H-mini_logic_io.jpg|400px]]
</center>

=====DB9 type RS232 connector =====
<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|Connector
! style="text-align: center;"|Function
|-
| style="text-align: center;"|DB9 (D-SUB 9)
| style="text-align: left;"|
* All RS232 interface signals are output in their corresponding voltage standard
|}
</center>
The DB9 RS232 connector, also known as D-SUB 9, is a typical connector used forimplementation of the RS232 interface. The DTE device, i.e. the master device (most often this role is played by a PC), is equipped with a male DB9 connector. The KAmod RS232H-mini converter also has a male connector.

The functions of the individual connector pins are as follows:
:* pin no. 1 - RS232 input; DCD signal - Data Carrier Detect (signal that the modem detects the carrier wave);
:* pin no. 2 - RS232 input; RXD signal - Receive Data Line (received data stream, sent from DCE/modem);
:* pin no. 3 - RS232 output; TXD signal - Transmit Data Line (data stream from DTE/Host);
:* pin no. 4 - RS232 output; DTR signal – Data Terminal Ready (readiness of DTE/Host for further cooperation with DCE/Modem);
:* pin no. 5 - ground, GND;
:* pin no. 6 - RS232 input; DSR signal – Data Set Ready (readiness of DCE/Modem for further cooperation with DTE/Host);
:* pin no. 7 - RS232 output; RTS signal – Request To Send (request for data transmission reported by DTE/Host);
:* pin no. 8 - RS232 input; CTS signal – Clear To Send (readiness to transmit reported by DCE/Modem - confirms receipt of RTS signal);
:* pin no. 9 - RS232 input; RI signal – Ring Indicator, a "ring" signal generated from the modem.

<center> [[File:KAmodRS232H-mini_rs232_pinout.jpg|500px]]
[[File:KAmodRS232H-mini_rs232.jpg|320px]] </center>
=====Power =====
<center>
{| class=‘wikitable’ style="width: 1000px;’
|-
! style=‘text-align: center;’|Connector
! style=‘text-align: center;’|Function
|-
| style=‘text-align: center;’|LOGIC I/O
Goldpin pins 1x10, 2.54 mm
| style=‘text-align: left;’|
* Power input 3...5.5 V
|}
</center>
The LOGIC I/O connector contains pins that connect the power supply to the KAmod RS232H-mini converter
:* pin no. 5 – ground, GND;
:* pin no. 10 – VIO; voltage input from the range of 3...5.5 V, which will correspond to logical "1" for all signals on the LOGIC I/O connector.

<center>
[[File:KAmodRS232H-mini_zasilanie.jpg|400px]]
</center>

=====Power signaling=====
<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|TYPE
! style="text-align: center;"|Function
|-
| style="text-align: center;"|POW
LED diode
| style="text-align: left;"|
* signaling correct power supply
|}
</center>
The LED diode marked POW signals the presence of the converter's power supply voltage.

<center>
[[File:KAmodRS232H-mini_led.jpg|320px]]
</center>

=====Dimensions=====
The dimensions of the KAmod RS232H-mini converter are 24x30 mm boards (31x31 with the DB9 connector). The module height is approx. 17 mm.

<center>
[[File:KAmodRS232H-mini_wymiary.jpg|400px]]
</center>
===== Links=====
*[https://wiki.kamamilabs.com/images/4/4e/SP3243.pdf SP3243 datasheet]
*[https://wiki.kamamilabs.com/images/1/13/MAX3243.pdf MAX3243 datasheet]

KAmod RS232H-mini - Revision history

Grzegorzbecker: /* Power */