User Guide

RH-30/RH-31 Company Confidential
System Module Nokia Customer Care
Page 22 © 2004 Nokia Corporation. Issue 2 11/2004
Bottom connector pins and signals:
Pin/
Signal
name
Signal
description
Spectral range
Voltage /
Current levels
Max or
nominal
serial
impedance
Note
1 CHARGE V Charge DC 0-9 V / 0.85 A
2 GND Charge GND 0.85 A (PWB + conn.)
3 ACI ACI 1 kbit/s Dig 0 / 2.78V Insertion & removal
detection
4 VOUT DC out DC 2.78V / 70mA (PWB + conn.)
200mW
5 NC Not connected
6 FBUS RX FBUS 115kbit 0 / 2.78V
7 FBUS TX FBUS 115kbit 0 / 2.78V
8 GND Data GND
9 XMIC N Audio in 300 - 8k 1Vpp & 2.78V Ext. Mic Input
10 XMIC P Audio in 300 - 8k 1Vpp & 2.78V Ext. Mic Input
11 HSEAR N Audio out 20 - 20k 1Vpp Ext. audio out (left)
12 HSEAR P Audio out 20 - 20k 1Vpp Ext. audio out (left)
13 HSEAR R N Audio out 20 - 20k 1Vpp Ext. audio out
(right)
14 HSEAR R P Audio out 20 - 20k 1Vpp Ext. audio out
(right)