Make your MBUS cable

 

To make your MBUS Cable, you can use this schema provided by gsm-cables.net, that is very good.

 

Max232 Version

3x 4148 Diodes
1x Resistor 1k
1x Voltage regulator 78L05
2x Ceramic Capacitors 100nF
4x Electrolitic Capacitors 1 microF
2x Zenner Diodes 2V7
1x I.C. MAX232
1x Female 9 pin serial PC conector
1x Conector phone *
(see the bottom of this page if you have problem to find this connector)

 

max232.gif (12478 byte)

 

Here the nokia 9110 Pin - Layout

 

 

A

o

B
C

X

D
E
F
G

H
I
J
K

O

X

GND

DC Jack (Signals as on PINs A,B,C)

Charger Input Voltage
Charger Control Output

Locking Hole

RX   (Serial Data Input)
TX   (Serial Data Output)
DTR
GND

SGND   (Accessory Signal Ground)
XEAR   (Accessory Earphone Signal Ground)
XMIC   (Accessory Microphone Signal Ground)
MBUS

External RF with Switch

Locking hole                 

 

9110pinlayout.gif (14820 byte)

 

If You have problem to find the phone connector, you can modify your standard cable.

*In the standard cable, you must connect the blu cable to the MBUS, and the black cable to the logic GND.

 

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