User Manual
Table Of Contents
- SECTION 1: Overview
- SECTION 2: Description
- SECTION 3: Host Unit Installation
- SECTION 4: Operation
- SECTION 5: Maintenance
- SECTION 6: General Information
- ABOUT THIS MANUAL
- RELATED PUBLICATIONS
- ADMONISHMENTS
- GENERAL SAFETY PRECAUTIONS
- STANDARDS CERTIFICATION
- LIST OF ACRONYMS AND ABBREVIATIONS
- SECTION 1: Overview
- SECTION 2: Description
- SECTION 3: Host Unit Installation
- 1 before starting installation
- 2 OSP Fiber Cable Installation Guidelines
- 3 WDM mounting procedure (optional accessory)
- 4 HU mounting procedure
- 5 Chassis ground connection
- 6 coaxial cable connections
- 7 optical connections
- 8 controller area network connections
- 9 service interface connection
- 10 external alarm system connections
- 11 dc power connections
- SECTION 4: Operation
- 1 before starting operation
- 2 turn-up system and verify operation
- 2.1 Turn-Up Procedure
- 2.2 Download HU and RU System Software
- 2.3 Determine Forward Path Input Signal Level
- 2.4 Enter Site Name and Site Number
- 2.5 Enter Host Forward Attenuation
- 2.6 Determine Output Signal Level at STM Antenna Port
- 2.7 Enter Remote Forward Attenuation
- 2.8 Enter Host Reverse Attenuation
- 2.9 Enter Host Forward and Reverse Delay
- SECTION 5: Maintenance
- SECTION 6: General Information
ADCP-75-126 • Issue B • April 2002 • Section 4: Operation
Page 4-9
©
2002,
ADC
Telecommunications,
Inc.
Figure 4-5. Signal Levels, Test Points, and Adjustments
INPUT SIGNAL LEVEL
(-10 to -40 dBm
COMPOSITE)
HOST UNIT
PRIMARY
ANTENNA
LPA
REMOTE UNIT
BASE
TRANSCEIVER STATION
17000-C
EXTERNAL
ATTENUATOR
TRANS-
MITTERS
RECEIVERS
0 to 30 dB
ATTENUATOR
(HOST REV ATT)
0 to 30 dB
ATTENUATOR
(HOST FWD ATT)
RF, OPTICS,
AND CONTROL
0 to 30 dB
ATTENUATOR
(REMOTE FWD ATT)
OPTICAL LINK
RF, OPTICS,
AND CONTROL
DUPLEXER
ADJUSTMENTS TO INPUT
SIGNAL LEVEL AS SET BY HOST
FORWARD PATH ATTENUATOR
ADJUSTMENTS TO OUTPUT
SIGNAL LEVEL AS SET BY HOST
REVERSE PATH ATTENUATOR
MAXIMUM OUTPUT SIGNAL
LEVEL AT STM ANTENNA PORT
ADJUSTMENTS TO
OUTPUT SIGNAL LEVEL
AS SET BY THE REMOTE
FORWARD ATTENUATOR