i
Table of Contents
Product Safety and RF Exposure Compliance
........................ix
Chapter 1
Introduction
1.1
Scope of Manual .................................................................................................... 1-1
1.2
Warranty and Service Support ............................................................................... 1-1
1.2.1
Warranty Period .................................................................................................. 1-1
1.2.2
Return Instructions .............................................................................................. 1-1
1.2.3
After Warranty Period .......................................................................................... 1-1
1.3
Related Documents................................................................................................ 1-2
1.4
Technical Support .................................................................................................. 1-2
1.4.1
Piece Parts Availability ........................................................................................ 1-2
1.5
Radio Model Chart and Specifications ................................................................... 1-3
1.6
Radio Model Information ........................................................................................ 1-3
Chapter 2
Intrinsically Safe Radio Information
2.1
FMRC Approved Equipment .................................................................................. 2-1
2.2
Repair of FMRC Approved Products...................................................................... 2-2
2.2.1
Repair.................................................................................................................. 2-2
2.2.2
Relabeling ........................................................................................................... 2-2
2.2.3
Do Not Substitute Options or Accessories .......................................................... 2-2
Chapter 3
Theory of Operation
3.1
Introduction ............................................................................................................ 3-1
3.2
Radio Power Distribution........................................................................................ 3-1
3.3
Keypad/PassPort Option Board ............................................................................. 3-2
3.4
Controller................................................................................................................ 3-3
3.4.1
MCU Digital ......................................................................................................... 3-3
3.4.2
Real Time Clock .................................................................................................. 3-4
3.4.3
Circuit Description ............................................................................................... 3-4
3.4.4
MODB/VSTBY Supply......................................................................................... 3-4
3.4.5
Audio/Signaling ................................................................................................... 3-5
Содержание HT1250-LS+
Страница 10: ...viii ...
Страница 12: ...x Product Safety and RF Exposure Compliance ...
Страница 16: ...1 4 Introduction ...
Страница 58: ...4 22 Maintenance ...
Страница 64: ...5 6 Schematic Diagrams Overlays and Parts Lists ...
Страница 102: ...5 44 Schematic Diagrams Overlays and Parts Lists Figure 5 34 Keypad PassPort Option Board Schematic Diagram ...