DB9 Cabling 1

[Corwyn]

Hi,

I'm looking to find back the configuration of a DB9 to link Meridian (TTY) to COM port of a computer.
Could you help me? (color and position)

 

[unkalary]

You will have to tone out the DB9. It is definetly not standard out the of the TTY port. Also what type of system 11C or 51/61/81C. It does make a difference

 

[rtycka]

for o11 RS232
DB25 M1 to DB9 PC

25 PIN Pabx 9 PIN PC
2 - 2
3 - 3
7,8 cross connection
8,20 1,6,4 cross connection
7 - 5

 

[jhayman]

The DB9 ports for the SDI ports use "RS232 standards" for signaling, however the pinout is not standard DB9 and requires the use of Northern's cable to get a standard pinout on a DB25. Below is the wiring pinout to get from Northern's DB9 to a standard DB25.

DB9 DB25
Pin 1 Pin 8
Pin 2 Pin 2
Pin 3 Pin 7
Pin 4 Pin 4
Pin 6 Pin 3
Pin 7 Pin 20
Pin 8 Pin 6
Pin 9 Pin 5

Below is the pinout from Northern's DB9 to a standard DB9

DB9 DB9
Pin 1 Pin 1
Pin 2 Pin 3
Pin 3 Pin 5
Pin 4 Pin 7
Pin 6 Pin 2
Pin 7 Pin 4
Pin 8 Pin 6
Pin 9 Pin 8

 

[cilcomm]

rtycka,
Is this the proper pinout to go directly from the SDI port 0 on an Option 11C to a PC serial port running Hyperterminal? I would like to make custom cable to perform this function instead of using a TTY terminal. I t makes it easier to scroll back through past entries without wasting print paper.

 

[rtycka]

yes I use this cable for connection to the M1 o11. But usualy I use the Telix or Reflection.

 

[agpham]

Does anybody have the cable pin out schematics for M1 Option 11 for the SDI to branch out to the (3) RS232's ? All the diagrams indicated here are for single cable. Thanks.

 

[ArchibaldJCox]

I too would like the pinout for the SDI branch out cable to 3 DB25 connectors.

Thank you!

Arch

 

[wdhb]

Triple tail from Option 11 CPU port

DB 9 DB 25 - 0 DB 25 - 1 DB 25 - 2
1 8
2 3
3 2
4 (join) 4,20
5 (join) 7 7 7
6 3
7 2
8 3
9 2
(loop) 6,20 6,20
(loop) 4,8 4,8

 

[ArchibaldJCox]

Thanks wdhb! I'll test it out tomorrow. (Purchased a used 11C and it didn't come with the cable) I'll let you know how it works out.

Arch

 

[wdhb]

any one now how to paste xl etc into these pages & keep the formatting

 

[ArchibaldJCox]

homemade cable is in and working for all 3 TTY ports! Hallelujah!

Arch