Wiring - Revision history

Brylow at 16:16, 21 March 2007

2007-03-21T16:16:38Z

2007-03-21T16:15:55Z

2007-03-05T05:20:48Z

Schematic update.

2007-03-05T04:06:22Z

2006-09-08T20:39:12Z

2006-09-06T18:09:22Z

2006-09-06T18:04:26Z

2006-08-28T06:06:56Z

2006-08-28T06:06:08Z

2006-08-28T06:03:51Z

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 * The component in the middle represents the [[Chips|MAX233A transceiver]] needed to convert the voltage used to transmit signals in the router (3.3V) to the RS-232 standard signals to send over the serial port.
-* The components on the right represent two standard DB9 jacks.  The first port is wired to be a DCE with female DB9, implying that this console port
+* The components on the right represent two standard DB9 jacks.  The first port is wired to be a DCE with female DB9, implying that this console port connects to a computer.  The second serial port is wired as a DTE, with male DB9, implying that this secondary port will connect to other kinds of communications equipment (serial-controlled sensors, etc.,) or perhaps another router's console.
 * A computer connecting to the first port would require a standard DB9 serial cable; connecting a computer or other DTE to the second port would require a [[Null Modem]].
 Please note that the diagrams do NOT represent actual placement of the pins on the hardware, which may have been moved to simplify the diagram.

@@ Line 2: / Line 2: @@
 ----
 <br/>
-* The diagram on the left represents the UART head on the main board of the router.  The left pins (2,6,4,8,10) represent the data that is sent and received from the first serial port, the right pins (1,5,3,7,9) the second serial port.
+* The component on the left represents the UART head on the main board of the router.  The even pins (2,6,4,8,10) represent the data that is sent and received from the first serial port, the odd pins (1,5,3,7,9) the second serial port.  Each port has lines for power, ground, transmit, receive, and an
-* The diagram in the middle represents the [[Chips|MAX233A transceiver]] needed to convert the voltage used to transmit signals in the router (3.3V) to the RS-232 standard signals to send over the serial port.
+* The component in the middle represents the [[Chips|MAX233A transceiver]] needed to convert the voltage used to transmit signals in the router (3.3V) to the RS-232 standard signals to send over the serial port.
-* The diagrams on the rights represent two standard DB9F serial ports wired to be DCEs.
+* The components on the right represent two standard DB9 jacks.  The first port is wired to be a DCE with female DB9, implying that this console port
 Please note that the diagrams do NOT represent actual placement of the pins on the hardware, which may have been moved to simplify the diagram.

@@ Line 1: / Line 1: @@
-<center>[[Image:Embedsysdiag.png]]</center><br/>
+<center>[[Image:MAX233A.png]]</center><br/>
 ----
 <br/>

@@ Line 1: / Line 1: @@
 <center>[[Image:Embedsysdiag.png]]</center><br/>
 ----
 <br/>

@@ Line 1: / Line 1: @@
-[[Image:Embedsysdiag.png]]
+<center>[[Image:Embedsysdiag.png]]</center><br/>
+{| align=right
 * The diagram on the left represents the UART head on the main board of the router.  The left pins (2,6,4,8,10) represent the data that is sent and received from the first serial port, the right pins (1,5,3,7,9) the second serial port.

← Older revision		Revision as of 06:03, 28 August 2006
Line 1:		Line 1:
	[[Image:Embedsysdiag.png]]		[[Image:Embedsysdiag.png]]
		+
		+	The diagram on the left represents the UART head on the main board of the router. The left pins (2,4,6,8,10) represent the data that is sent and received from the first serial port, the right pins (1,3,5,7,9) the second serial port.
		+
		+	The diagram in the middle represents the MAX233A transceiver needed to convert the voltage used to transmit signals in the router to the standed 5V signals to send over the serial port.
		+
		+	The diagram on the left represents standard DB9F serial ports wired to be DCEs.