RS232 and GPIO Connector - Revision history

Marcel at 17:15, 23 February 2021

2021-02-23T17:15:33Z

Marcel at 17:14, 23 February 2021

2021-02-23T17:14:50Z

Marcel at 08:10, 24 July 2020

2020-07-24T08:10:01Z

Camille: Add category Connectors

2020-06-23T09:11:56Z

Add category Connectors

Marcel at 13:09, 15 June 2020

2020-06-15T13:09:10Z

Marcel at 13:08, 15 June 2020

2020-06-15T13:08:18Z

Camille: typo

2020-06-15T13:06:04Z

typo

Camille: Added all GPIO information

2020-06-15T08:26:04Z

Added all GPIO information

Camille: Added pin table

2020-06-15T08:09:11Z

Added pin table

Camille: Camille moved page RS232 to RS232 and GPIO Connector: Incomplete title

2020-06-15T06:46:31Z

Camille moved page RS232 to RS232 and GPIO Connector: Incomplete title

← Older revision		Revision as of 17:15, 23 February 2021
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	[[Category:RDS]]		[[Category:RDS]]
	[[Category:Connectors]]		[[Category:Connectors]]
		+	[[Category:GPIO]]

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 <br />
 [[Category:RS232]]
 [[Category:RDS]]
 [[Category:Connectors]]

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 *the RS232 output voltage is approx. ±6V. Full ±12V is accepted at input.
 *the output RS_TXD pin is not active (so is 0V instead of +6V) until there is activity on RS_RXD pin.
 ==Using GPI==

← Older revision		Revision as of 09:11, 23 June 2020
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	[[Category:UECP]]		[[Category:UECP]]
	[[Category:RDS]]		[[Category:RDS]]
		+	[[Category:Connectors]]

@@ Line 131: / Line 131: @@
 *the output RS_TXD pin is not active (so is 0V instead of +6V) until there is activity on RS_RXD pin.
-==GPI Example Connections==
+==Using GPI==
 To activate one Input, GPI pin would be pulled to ground , with a voltage applied on the GPICOM pin (Common to all GPI).
@@ Line 164: / Line 164: @@
 |}
-==GPO Example Connections==
+==Using GPO==
 The GPO portion of the GPIO port are Solid State Relays. Current should be limited to 100 mA per GPO pin of a port. Maximum allowed voltage is 48 volts. The following diagram shows the recommended connections for outputs with the use of an external power supply.
 [[File:GPO external power supply.png|center|460x460px|Sample GPO connection using external power supply]]

@@ Line 1: / Line 1: @@
-The RS232 port can be used to feed the SOUND4 device with RDS UECP commands.
+The male DB25 connector is used for both RS232 and GPIO, providing 8 General Purpose Inputs and 8 General Purpose Outputs.
 ==Connector==
@@ Line 112: / Line 110: @@
 ==RS232==
-The DB25-M GPIO+RS232 is compatible with the V.24 standard, "DTE" side, meaning that it's the same as a computer-side connector.
+The RS232 port is mainly used to feed the SOUND4 device with RDS UECP commands.
-Consequently when connecting a computer to the SOUND4 device, you have to use a Null Modem (cross cable).
+Only the RXD/TXD signals are used for UECP, there is no handshaking : the CTS/RTS are not used
 So if your PC COM is male SUBD-9, the connection must be at minimum :

@@ Line 131: / Line 131: @@
 *the output RS_TXD pin is not active (so is 0V instead of +6V) until there is activity on RS_RXD pin.
-== GPI Example Connections ==
+==GPI Example Connections==
 To activate one Input, GPI pin would be pulled to ground , with a voltage applied on the GPICOM pin (Common to all GPI).
@@ Line 164: / Line 164: @@
 |}
-== GPO Example Connections ==
+==GPO Example Connections==
 The GPO portion of the GPIO port are Solid State Relays. Current should be limited to 100 mA per GPO pin of a port. Maximum allowed voltage is 48 volts. The following diagram shows the recommended connections for outputs with the use of an external power supply.
 [[File:GPO external power supply.png|center|460x460px|Sample GPO connection using external power supply]]
 If necessary, a Current Limiting Resistors must be used to limit the current to 100mA for each GPO pin.
-'''NOT PROTECTING THE GPI COULD DAMAGE YOUR DEVICE.'''
+'''NOT PROTECTING THE GPO COULD DAMAGE YOUR DEVICE.'''
 If the device being controlled is electrically isolated, than the internal GP5V supply can be used, maintaining a 100mA limit on current drawn.
@@ Line 175: / Line 175: @@
 '''NOTE''': GPO pins and GPOCOM are not polarized, current can flow both directions.
-== Internal connections of the GPIO port ==
+==Internal connections of the GPIO port==
 GPIO port provides 8 GPI (opto isolated inputs) and 8 GPO (solid state relays). Port is capable of driving a combined current of 100mA. Each GPI pin should be limited to 20mA of current.