User Guide

RH-30/RH-31 Company Confidential

System Module Nokia Customer Care

230.4 kbit/s or less is used as a transmission speed, pulse length is maximum 1.63µs. If

transmission speed is set to 1.152Mbit/s, the pulse length is 154ns.

Figure 29: IR module connections.

Vibra

A vibra alerting device is used to generate a vibration signal for an incoming call. Vibra is

located in the bottom end of the phone and it is connected to main PWB with spring

contacts. The vibra is controlled by a PWM signal from UEM. Frequency can be set to 64,

128, 256 or 512 Hz and duty cycle can vary between 3% - 97%. Vibra motor is mounted

in C-cover assembly.

IR_TX

IR_RX

UPP

VFLASH1

VBAT

VIO

IR-

UEM