User Guide

Signal From To Min Nom Max Condi-tion Note

BSI UEMCLite 0 2.78 Analog input, Battery Size

Indicator Resistor, 100

kohm pull up to 2.78V

(VBB1). FDL Init, refer to

flash download.

BTEMP UEMCLite 0 2.78 Btemp NTC Resistor, 100

kohm pull up to 2.78V

(VANA)

* Note! In BL-5C battery IF the BTEMP signal doesn’t exists. Temperature measurement is done on system board

with NTC resistor.

Figure 8 BL-5C battery connection order

Battery

• Type: BL-5C

• Technology: Li-Ion, 4.2 V charging, 3.1 V cut-off

• Capacity: 900 mAh.

The BSI resistor is placed on the main PWB as the telephone supports only one battery capacity. Further a BSI

connection is added to the Flash interface. The battery temperature is measured by a NTC resistor placed on

the main PWB, opposite to the Battery. Battery pack has an impedance of 130 - 150 mΩ (0 – 45 °C).

Figure 9 BL-5C battery block

RH-70

Nokia Customer Care System module

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