Introduction
This page outlines how to construct a GReddy e-Manage (Blue) Support Tool cable.
This page also links to the required PC software and wiring diagrams.
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GReddy e-Manage (Blue) Support Tool Cable
The GReddy e-Manage (Blue) has a USB connector on it, however it does not support USB communications, this can catch quite a number of people out when they go to connect their GReddy e-Manage (Blue) unit to their PC for tunning.
GReddy charge quite a significant amount of money for their 'Support Tool', which effectively simply takes the TTL voltage level (0V to 5V) serial data from the e-Manage unit and converts it to standard PC serial port RS232 voltage serial data for the PC.
It isn't particularly hard to construct a Support Tool Cable yourself and the following information should allow you to construct your own GReddy e-Manage (Blue) Support Tool Cable. This design fits the PCB and required components inside a conventional plastic DB9 housing.
As a further note I have also successfully used this design with USB to RS232 serial converters with laptops that are not equipped with a serial port from factory.
GReddy e-Manage (Blue) Support Tool Circuit Design
GReddy e-Manage (Blue) Support Tool Schematic
GReddy e-Manage (Blue) Support Tool PCB Overlay
GReddy e-Manage (Blue) Support Tool Protel 99 SE PCB File
GReddy e-Manage (Blue) Support Tool PCB Bill Of Materials (BOM)
QTY
|
Units
|
Part
|
Description
|
Supplier
|
Supplier Part Number
|
1
|
ea
|
PCB
|
Bare PCB
|
|
|
5
|
ea
|
CAPACITOR, 0805, 100NF, 50V, X7R
|
Capacitor Chip NPO dielectric
|
element14
|
1414664
|
1
|
ea
|
DE9-F
|
DE9 Female Connector - Solder
|
Jaycar
|
PS0804
|
1
|
ea
|
MAX202ID
|
RS232/TTL Level Convertor IC
|
element14
|
1436350
|
1
|
ea
|
DB9 Plastic Backshell
|
DB9 Plastic Backshell
|
Jaycar
|
PM0808
|
1
|
ea
|
USB Cable
|
Lead, USB1.1 A Plug, 1.8M
|
element14
|
1494729
|
GReddy e-Manage (Blue) USB Type A Connector Required Connections
Type A (Controller) USB Port Pin:
|
Connection
|
Standard USB Cable Colour
|
Pin 1 (+5V Power)
|
Power to TTL/RS232 level convertor PCB
|
Red |
Pin 2 (RxD: Data to e-Manage)
|
Data FROM TTL/RS232 level convertor IC (TTL data TO e-Manage)
|
White |
Pin 3 (TxD: Data from e-Manage)
|
Data TO TTL/RS232 level convertor IC (TTL data FROM e-Manage)
|
Green |
Pin 4 (Ground)
|
Ground to TTL/RS232 level convertor PCB
|
Black |
PC RS232 Serial Port DE-9 Male Connector Required Connections
DE-9 PC Serial Port Pin:
|
Direction (From PC Perspective)
|
Connection / Requirement
|
Pin1 (DCD: Carrier Detect)
|
IN
|
No Connection
|
Pin 2 (RxD: Received Data)
|
IN
|
From TTL/RS232 Convertor IC (RS232 TO Serial Port)
|
Pin 3 (TxD: Transmitted Data)
|
OUT
|
To TTL/RS232 Convertor IC (RS232 FROM Serial Port)
|
Pin 4 (DTR: Data Terminal Ready)
|
OUT
|
No Connection
|
Pin 5 (G: Common Ground)
|
OUT
|
Ground
|
Pin 6 (DSR: Data Set Ready)
|
IN
|
From TTL/RS232 Convertor IC (RS232 Logic ‘0’ Voltage)
|
Pin 7 (RTS: Request To Send)
|
OUT
|
Connect to DE9 Pin 8 via PCB (RTS to CTS)
|
Pin 8 (CTS: Clear To Send)
|
IN
|
Connect to DE9 Pin 7 via PCB (RTS to CTS)
|
Pin9 (RI: Ring Indicator)
|
IN
|
No Connection
|
GReddy e-Manage (Blue) PC Support Tool Software
GReddy e-Manage (Blue) Manuals
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