Serial Pin-outs: Difference between revisions

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Total: $70.53
Total: $70.53

== Pinouts ==

=== RS-232 over DB9 ===

{|
|-
|
Female
5 4 3 2 1
9 8 7 6
|
Male
1 2 3 4 5
6 7 8 9
|-
|}

1 DCD <br>
2 RXD <br>
3 TXD <br>
4 DTR <br>
5 GND <br>
6 DSR <br>
7 RTS <br>
8 CTS <br>
9 RI

Serial ports on common PC hardware have this pin-out.

=== RS-232 over 8P8C, Sun ===

{|
|-
|
Top of plug
1 2 3 4 5 6 7 8
|-
|}

1 RTS <br>
2 DTR <br>
3 TXD <br>
4 GND <br>
5 GND <br>
6 RXD <br>
7 DSR <br>
8 CTS

The Sun Netra, ascorbic-acid, has this pinout.

=== RS-232 <-> 8P8C Adapter ===

{|
|-
| DB9 || 8P8C
|-
|1||6
|-
|2||1
|-
|3||5
|-
|4||4
|-
|5||2
|-
|6||3
|-
|7||7
|-
|8||8
|-
|9||X
|-
|}

The black adapter has this pinout.

Revision as of 00:50, 9 April 2008

The idea is to connect pairs of systems with 2 serial cables to create a bidirectional link. We would then run a getty over one of the ports on each machine. This would allow us to login to any server if networking breaks.

The following is a list of our servers and how many serial ports they currently have:

  • caffeine (1 header)
  • natural-flavours (1 on-board)
  • artificial-flavours (1 on-board)
  • taurine (1 on-board, 1 virtual)
  • perpugilliam (2 on-board)
  • citric-acid (2 on-board)
  • potassium-citrate (2 on-board)
  • ascorbic-acid (1 on-board)

We would need the following:

  • 3 x Dual PCI Serial Port Card (PCI-2S)
  • 6 x Null-modem/Crossover Serial Cables (CB-NM9FF)

Total: $70.53

Pinouts

RS-232 over DB9

Female

 5 4 3 2 1
  9 8 7 6

Male

 1 2 3 4 5
  6 7 8 9

1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI

Serial ports on common PC hardware have this pin-out.

RS-232 over 8P8C, Sun

Top of plug

 1 2 3 4 5 6 7 8

1 RTS
2 DTR
3 TXD
4 GND
5 GND
6 RXD
7 DSR
8 CTS

The Sun Netra, ascorbic-acid, has this pinout.

RS-232 <-> 8P8C Adapter

DB9 8P8C
1 6
2 1
3 5
4 4
5 2
6 3
7 7
8 8
9 X

The black adapter has this pinout.