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Re: ** WANTED: PINOUTS.....Please read!
bitzm@columbia.dsu.edu (MICHAEL BITZ) writes:
>Hello. I am in need of a list of pin configurations for the following ports:
>* Centronics parallel printer (such as a Panasonic KX-P1123, etc)
>* Standard RS-232 Serial port
>* Laser 128 Parallel printer port (15-pin)
>* Laser 128 Serial modem port (5-pin round)
The Laser pinouts would require a Laser manual (which I do not have).
The first two are available in any good reference. For example I have a catalog
from CommsWare and in the data section at the back we find:
RS-232/V.24 Interface
EIA CCITT To Description Pin number
RS-232 V.24
----------------------------------------------------------
AA 101 Frame Ground 1
BA 103 DCE Transmit Data 2
BB 104 DTE Receive Data 3
CA 105 DCE Request To Send 4
CB 106 DTE Clear To Send 5
CC 107 DTE Data Set Ready 6
AB 102 Signal Ground 7
CF 109 DTE Data Carrier Detect 8
+Test Voltage 9
-Test Voltage 10
Unassigned 11
SCF 122 DTE 2nd Data Carrier Detect 12
SCB 121 DTE 2nd Clear To Send 13
SBA 118 DCE 2nd Transmit Data 14
DB 114 DTE Transmit Clock (DCE) 15
SBB 119 DTE 2nd Receive Data 16
DD 115 DTE Receive Clock (DCE) 17
DCE Receiver Dibit Clock 18
SCA 120 DCE 2nd Request To Send 19
CD 108.2 DCE Data Terminal Ready 20
CG 110 DTE Signal Quality Detect 21
CE 125 DTE Ring Indicator 22
CH/I 111/2 DCE Data Rate Select 23
DA 113 DCE External Transmit Clk 24
DCE Busy 25
For DCE read Modem and for DTE read Terminal.
=========================================================================
Centronics/Parallel Interface
Signal 36 way connector IBM 25 way connector To
------------------------------------------------------------------
Data Strobe 1 1 Printer
Data Bit 1-8 2-9 2-9 Printer
Acknowledge 10 10 Computer
Busy 11 11 Computer
Paper End 12 12 Computer
Select 13 13 Computer
AutoFeed 14 (may be Gnd) 14 Printer
OSCXT 15
Logic Gnd 16
Chassis Gnd 17
+5 18
Data Strobe Gnd 19
Data Bit Gnds 20-27 18-25
Acknowledge Gnd 28
Busy Gnd 29
Input Prime Gnd 30
Input Prime 31 16 Printer
Fault 32 15 Computer
Unassined 33-35
Select Input 36 17 Printer
--
David Wilson +61 42 213802 voice, +61 42 213262 fax
Dept Comp Sci, Uni of Wollongong david@cs.uow.edu.au
-=-=-=-=-=-=-=-=-=-=-=-=
Hey I just happen to have my Apple II SSC Installation and Operating
Manual with me.
On page 98, under the section called Connector Pin Assignment:
10-pin DB-25
header Connector Signal name
------ --------- ------------
1 1 Frame Ground
2 2 Transmit Data (TXD)
3 3 Receive Data (RXD)
4 4 Request to Send (RTS)
5 5 Clear to Send (CTS)
6 6 Data Set Ready (DSR)
7 19 Secondary Clear to Send (SCTS)
8 7 Signal Ground
9 20 Data Terminal Ready (DTR)
10 8 Data Carrier Detect (DCD)
-=-=-
--
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