Making my own ALDL cable for TunerPro -- which of these 2 schematics

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odd results from aldl cable - Third Generation F-Body Message Boards

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Parallax usb-rs232 converter (diy aldl odb1 cable) — parallax forums

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GM OBD-I (OBD1) ALDL Microcontroller LCD Interface, Scan Tool
GM OBD-I (OBD1) ALDL Microcontroller LCD Interface, Scan Tool

Pennsylvania ALDL USB cable with instructions - Third Generation F-Body
Pennsylvania ALDL USB cable with instructions - Third Generation F-Body

odd results from aldl cable - Third Generation F-Body Message Boards
odd results from aldl cable - Third Generation F-Body Message Boards

Parallax USB-RS232 converter (DIY ALDL ODB1 cable) — Parallax Forums
Parallax USB-RS232 converter (DIY ALDL ODB1 cable) — Parallax Forums

1G DSM Datalogging Cable - EvoEcu
1G DSM Datalogging Cable - EvoEcu

GM 8192/160 Baud ALDL Interface
GM 8192/160 Baud ALDL Interface

Making my own ALDL cable for TunerPro -- which of these 2 schematics
Making my own ALDL cable for TunerPro -- which of these 2 schematics