After Sales
Technical Documentation
RAE/RAK–1N
UIF
Page 4– 5
Amendment 1 04/97
Introduction
This document describe UIF (GK2 for GSM, GK2–1 for PCN) module. UIF
module includes CMT display ,CMT keypad ,PDA soft keypad and
antenna matching circuit with connectors. It has also connection to
PDALCD (GK1). PDALCD and UIF modules, together these are called
the LCDM. The LCDM has all the electronics in the cover side of RAE–1
(for GSM) and RAK–1 (for PCN).
Note: GK2 is for GSM
GK2–1 is for PCN
Figure 1. LCDM
LCD
LCD
UIF
LCD
Driver
Soft keypad
CMT
Keypad
PDA 33
11
24
LCDM
PDALCD
Antenna & antenna cable
Hinge flex
EMC–flex
CMT
Technical Summary
UIF Mechanics
The module is made for 0.6 mm thick Printed Circuit Board. PCB has
four–layers. Reasons for that kind of material:
– Four layers are needed because of antenna is also assembled in this
module. Additional layers will improve shielding against RF–radiation.
– We do not need Flexible Printed Circuit (As used in HD841) because
we do not have side keys.
– PCB is easier to assembly than FPC.
– PCB is cheaper than FPC.
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