Nokia RM-243 Service Manual

Signal name Function/
Parameter
Min Typ Max Unit Notes
MICBIAS HS MIC bias
voltage
2.05 2.1 2.25 V
ECI Vin high 1.7 - 2.6 V
ECI Vin low 0 - 0.7 V
Baseband technical specifications
External interfaces
Name of Connection Connector reference
USB X2005 (on engine PWB)
Charger X2000 (on engine PWB)
Headset X2001
SIM X2007
Micro SD X3200
Battery connector X2070 (on engine PWB)
SIM IF connections
Pin Signal I/O Engine connection Notes
C1 VSIM Out EM ASIC N2200 VSIM1 Supply voltage
to SIM card,
1.8V or 3.0V.
C2 SIMRST Out EM ASIC N2200 SIM1Rst Reset signal to
SIM card
C3 SIMCLK Out EM ASIC N2200 SIM1ClkC Clock signal to
SIM card
C5 GND - GND Ground
C7 SIMDATA In/Out EM ASIC N2200 SIM1DaC Data input /
output
SW SIM_DET In EM ASIC N2200 SIMDetX Removal
detection
RM-243
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 6 –23
Copyright © 2007 Nokia. All rights reserved.

Nokia RM-243 Specifications

General

Brand	Nokia
Model	RM-243
Category	Handhelds
Language	English