User's Manual
Table Of Contents
- 900MHz ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS_91 080 0716F
- INDEX
- 1) SAFETY RULES
- 2) STANDARDS
- 3) GENERAL DESCRIPTION
- 3.1) EXAMPLE: USE IN TUNNELS
- 3.2) OPERATING PRINCIPLE - 800MHz/900MHz ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
- 3.3) ATTACHED DOCUMENTS
- SMR - TECHNICAL CHARACTERISTICS
- CDMA/TDMA/AMPS - TECHNICAL CHARACTERISTICS
- EGSM - TECHNICAL CHARACTERISTICS
- GSM-R - TECHNICAL CHARACTERISTICS
- CDMA/TDMA/AMPS - ILLUSTRATIVE 1 - Equipment composition and backplane access points map
- CDMA/TDMA/AMPS - ILLUSTRATIVE 2 - Modules access points map and external access points map
- EGSM - ILLUSTRATIVE 1 - Equipment composition and backplane access points map
- EGSM - ILLUSTRATIVE 2 - Modules access points map and external access points map
- GSM-R - ILLUSTRATIVE 1 - Equipment composition and backplane access points map
- GSM-R - ILLUSTRATIVE 2 - Modules access points map and external access points map
- 4) INSTALLATION AND POWER-UP PROCEDURES
- ABBREVIATIONS AND ACRONYMS
- INDEX
800MHz-900MHz Off-Air Repeaters (OR Series) Page 91 080 0716F – Rel.06
CHAPTER 3
4
b) By an Off-Air Repeater connected to master unit and optical remote units with amplification steps of
no more than 1200mt. each. The optical fiber system extends the signal through an antenna or a
passive distribution system (Figure 6).
FIGURE 6
MASTER
UNIT
UP
DOWN
RF
UP
DOWN
D
OW
N
L
I
N
K
U
P
L
I
N
K
Power Supply
(230Vac)
48Vdc Power
Supply and external
signals
OFF-AIR
REPEATER
REMOTE
UNIT