Difference between revisions of "Serial Cable"
From LinuxMIPS
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This is the way you need to solder your cable. | This is the way you need to solder your cable. | ||
| − | + | == Serial connector pinouts == | |
| + | |||
| + | <pre> | ||
| + | 1 13 1 5 | ||
| + | _______________________________ _______________ | ||
| + | \ . . . . . . . . . . . . . / \ . . . . . / | ||
| + | \ . . . . . . . . . . . . / \ . . . . / | ||
| + | --------------------------- ----------- | ||
| + | 14 25 6 9 | ||
| + | |||
| + | 25-pin Sub-D 9-pin Sub-D | ||
| + | |||
| + | ---- | ||
| + | /6 7 8 \ | ||
| + | | 3 4 5 | | ||
| + | \ 1 2 / | ||
| + | --- | ||
| + | |||
| + | 8-pin Mini-DIN | ||
| + | |||
| + | Name (V24) 25pin 9pin 8pin Dir Full name Remarks | ||
| + | -------------------------------------------------------------------------- | ||
| + | TxD 2 3 3 o Transmit Data Data | ||
| + | RxD 3 2 5 i Receive Data Data | ||
| + | RTS 4 7 6 o Request To Send Handshaking | ||
| + | CTS 5 8 2 i Clear To Send Handshaking | ||
| + | DTR 20 4 1 o Data Terminal Ready Status | ||
| + | DSR 6 6 - i Data Set Ready Status | ||
| + | RI 22 9 - i Ring Indicator Status | ||
| + | DCD 8 1 7 i Data Carrier Detect Status | ||
| + | GND 7 5 4,8 - Signal ground Reference level | ||
| + | - 1 - - - Protective ground Don't use this one | ||
| + | as signal ground! | ||
| + | </pre> | ||
| + | |||
| + | == How to connect the connectors == | ||
<pre> | <pre> | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
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---------------------------------------------------------------------- | ---------------------------------------------------------------------- | ||
DTR - Data Terminal Ready 1 | 6 DSR - Data Set Ready | DTR - Data Terminal Ready 1 | 6 DSR - Data Set Ready | ||
| Line 21: | Line 50: | ||
</pre> | </pre> | ||
| − | + | It it might be needed to have a connection between pin 20 and pin 8 on the Sub-D 25 connector to have your terminal do a carrier detect. SGI is using the same pin-pout for it's 8-pin mini-DIN connectors as Apple for it's machines. Therefor cables and adapters suitable for use with Apple system may be used. | |
| − | + | ||
Revision as of 12:23, 4 July 2005
This is the way you need to solder your cable.
Serial connector pinouts
1 13 1 5
_______________________________ _______________
\ . . . . . . . . . . . . . / \ . . . . . /
\ . . . . . . . . . . . . / \ . . . . /
--------------------------- -----------
14 25 6 9
25-pin Sub-D 9-pin Sub-D
----
/6 7 8 \
| 3 4 5 |
\ 1 2 /
---
8-pin Mini-DIN
Name (V24) 25pin 9pin 8pin Dir Full name Remarks
--------------------------------------------------------------------------
TxD 2 3 3 o Transmit Data Data
RxD 3 2 5 i Receive Data Data
RTS 4 7 6 o Request To Send Handshaking
CTS 5 8 2 i Clear To Send Handshaking
DTR 20 4 1 o Data Terminal Ready Status
DSR 6 6 - i Data Set Ready Status
RI 22 9 - i Ring Indicator Status
DCD 8 1 7 i Data Carrier Detect Status
GND 7 5 4,8 - Signal ground Reference level
- 1 - - - Protective ground Don't use this one
as signal ground!
How to connect the connectors
----------------------------------------------------------------------
DTR - Data Terminal Ready 1 | 6 DSR - Data Set Ready
CTS - Clear To Send 2 | 4 RTS
TD - Transmit Data 3 | 3 RD
SG - Signal Ground 4,8 | 7 SG
RD - Receive Data 5 | 2 TD
RTS - Request To Send 6 | 5 CTS
DCD - Data Carrier Detect 7 | 20 DTR
Shield | 1 Protective Ground
It it might be needed to have a connection between pin 20 and pin 8 on the Sub-D 25 connector to have your terminal do a carrier detect. SGI is using the same pin-pout for it's 8-pin mini-DIN connectors as Apple for it's machines. Therefor cables and adapters suitable for use with Apple system may be used.
