Product Info
Table Of Contents
- 1 General
- 1.1 INTRODUCTION
- 1.2 STANDARD FEATURES
- 1.3 NAMING CONVENTION
- 1.4 ORDERING INFORMATION
- 1.5 SYSTEM CONFIGURATIONS
- 1.6 RADIO CONFIGURATIONS
- 1.7 FEATURES AND OPTIONS
- 1.7.1 Primary Power
- 1.7.2 Transmit Power Level Options
- 1.7.3 Differential Absolute Delay Equalization (DADE)
- 1.7.4 Trellis Encoding and Time Domain Equalization (TDE)
- 1.7.5 MCS-11 Alarm/Control Interface
- 1.7.6 Foreign Alarm Interface
- 1.7.7 Relay Interface Option
- 1.7.8 Extended Link Monitor Channel
- 1.7.9 Automatic Transmitter Power Control Provisioning Option
- 1.7.10 Service Channels Provisioning Options
- 1.7.11 Mechanical Options
- 1.7.12 Capacity upgrade
- 1.7.13 Bandwidth upgrade
- 1.8 USER SYSTEM INTERFACE (USI)
- 1.9 RADIO CHARACTERISTICS
- 1.10 EXTERNAL INTERFACE REQUIREMENTS
- 1.11 EQUIPMENT LISTING
- Table 1-6 MDR-8000/i/s Common Shelf Assembly
- Table 1-7 Supplied and Optional Equipment
- Table 1-8 I/O Interface Options
- Table 1-9 XMTR Options
- Table 1-10 PA Options
- Table 1-11 RCVR Options
- Table 1-12 Capacity Keys for Transmitter and Receiver Modules
- Table 1-13 LBO Options
- 1.11.1 Diplexer Filter Kits
- 1.11.2 Standard Filter Kits
- 1.11.3 Cable Drop Kit Option
- 1.12 FAN ASSEMBLY
- 1.13 HANDSET KIT
3DH03220 MDR-8000 Series Radios
Issue 6, July 2002 General
1-7
1.6.2
Ring
Non-standby radios are typically used in ring systems where the radios are
protected by the ring architecture.
1.6.3
Space Diversity Add-On
Space diversity can be added to any of the three basic configurations and
ring systems.
1.6.4
Optical 2 X 4 Configuration
Hot-standby and frequency diversity configuration are available with 2-fiber
or 4-fiber optical interfaces.
1.7
FEATURES AND OPTIONS
Features and options for the MDR-8000/i/s/u series of microwave digital radios are
described in the following paragraphs.
1.7.1
Primary Power
The MDR-8000/i/s/u series radios operate from 20.5 to 60 V dc primary
power with positive or negative ground.
1.7.2
Transmit Power Level Options
The standard radio is provided without a power amplifier (PA) module for
low-power applications. The optional PA module is available for high-power
requirements. There are different levels for the different frequency bands.
Refer to the electrical characteristics table in this section for specific levels.
1.7.3
Differential Absolute Delay Equalization (DADE)
DADEing adjusts the differential absolute delay between the main and
diversity signals in a space diversity configuration. DADEing is an auto-
matic function within the DS1/E1 and OC3 MDR-8000/i/s/u receivers, reduc-
ing the time required for initial turn-up and test.
1.7.4
Trellis Encoding and Time Domain Equalization (TDE)
Trellis encoding (DS1/E1/OC3) ensures that even with the most severe
multipath, only the correct digital data is demodulated. TDE further reduces
the disruptive effects of multipath distortion.
1.7.5
MCS-11 Alarm/Control Interface
MCS-11 is standard in the MDR-8000. The MDR-8000 can interface with
any alarm system that is based on the MCS-11 protocol. Use with the
TSM-2500 network management system to develop a central access point to
monitor and control the transmission system