STR 4500 & CTR 8740 Installation, Operation and Maintenance

Microwave Trunking


The STR 4500 All Outdoor Trunking Radio system that uses the WTM 4500T/WTM 4500XT with OBU/WBX is a powerhouse radio system when used in conjunction with the CTR 8740, the Ultra-Compact Transport Router and Microwave IDU for edge, pre-aggregation, aggregation, and nodal transport applications.

This combination delivers a unique combination of high-capacity all-packet transport, Carrier Ethernet, IP/MPLS and PWE services and comprehensive mission critical microwave features.

The STR 4500 & CTR 8740 Installation, Operation and Maintenance course teaches students key functions of the WTM 4000 & CTR 8740 platform. The course includes an overview of the chassis, initial setup and management access, installation and deployment options, basic configuration, system commissioning, diagnostics, maintenance, and troubleshooting. Extensive hands-on labs (nearly 50% of the course duration) and case studies offer students with scenarios they will face in real deployments in their networks. Courses are conducted by AVIAT expert trainers in a mentoring environment backed by their deep technology expertise and experience in implementation of microwave wireless and IP networks.

The in-person training is conducted at the Aviat Training locations or can be arranged at customer sites.

Upon successfully completing this course, participants will be able to perform:

  • Basic installation and configuration of the STR 4500 and CTR 8740 radio equipment
  • Provisioning of features such as Management, RF Links, Ethernet VLANs, QoS, and Link Aggregation
  • Basic diagnostics, troubleshooting and preventive maintenance for the CTR 8740 and STR 4500 radio system
  • Participants must complete applicable E-Learning courses.
  • Participants should have a basic understanding of Microwave and IP Fundamentals and have basic computer skills.
  • Each student must bring an IBM compatible laptop PC or an equivalent and have administrator rights on the PC. The PC must have a minimum parameters of:
    • Pentium 4 or later w/ 1GB of RAM and 250 MB of free hard drive space
    • Microsoft Windows XP, Vista, Windows 7, or Windows 8
    • USB Port
    • Network card (LAN Port)
    • DB9 serial port connection or adapter
Class option numberClass option nameDurationDetails
TRN-STR4500-IOM-ASTR 4500: Installation, Operation and Maintenance – ILT3-dayat Aviat / Open enrollment / per student
TRN-STR4500-IOM-BSTR 4500: Installation, Operation and Maintenance – ILT3-dayat Aviat / 10 students max
TRN-STR4500-IOM-CSTR 4500: Installation, Operation and Maintenance – ILT3-dayat customer site / 10 students max
TRN-STR4500-VIL-IOM-ASTR 4500: Installation, Operation and Maintenance – VILT3-dayat Aviat / Open enrollment / per student
TRN-STR4500-VIL-IOM-BSTR4500: Installation, Operation and Maintenance – VILT3-dayat Aviat / 10 students max

Course outline

WTM 4000 System Overview

  • WTM 4000 product overview
  • Product variants (including WTM 4500T and WTM 4500XT)
  • Implementation options
  • System & RF

Product installation

  • Unpacking
  • Antenna installation
  • WTM 4500T/OBU installation
  • DC power (external or PoE)

Basic Access & Management

  • Connecting to the WTM 4500T
  • Management option (GUI / CLI)
  • Management access configuration
  • SNMP and Wi-Fi configuration
  • Admin management

Radio Link Configuration

  • Provisioning the RF link
  • WTM 4500T/OBU Configuration Options
  • WTM 4500XT/WBX XPIC Configuration

Performance Statistics and Monitoring

  • RF Link Performance Statistics and Monitoring using CLI and GUI
  • RFC2544 Ethernet tests and interpretation

Switching and routing

  • VLAN management
  • Basic routing function
  • L2 control protocol tunnel


  • Classification
  • Scheduling
  • Policing
  • Flow classification

Troubleshooting and Maintenance

  • Troubleshooting and Maintenance Techniques and Options
  • Troubleshooting Configuration and Link Problems

CTR8740 System Overview

  • CTR 8740 Base Hardware Highlights
  • Product Architecture
  • Deployment options


  • Unpacking
  • CTR 8740 front panel
  • Grounding and power supply
  • SD Card

Basic Access & Management

  • Local maintenance ports
  • Management options
  • Management access configuration
  • Admin management

VLAN Configuration

  • VLAN concepts and configuration on the CTR 8740
  • Q-in-Q concept and configuration on the CTR 8740

LACP Configuration

  • Link aggregation concepts
  • LACP configuration via CLI and GUI

L1LA Configuration

  • L1LA concept on the CTR 8740
  • L1LA Configuration with WTM 4000

Synchronization Configuration

  • Network synchronization
  • SYNCE configuration

QOS Configuration

  • QOS concepts
  • Non-hierarchical QOS
    • Classification
    • Metering (Policing)
    • Scheduling and Shaping
  • Hierarchical QOS
    • Classifier configuration
    • Policy configuration
  • QOS configuration via CLI and GUI

Required equipment for training sessions at customer sites

One equipment rack with 48VDC power supply (note; all CTR8540 equipment is positive earth).

At least 1 Traffic free hop – 2 radios talking to each other. (Path has been simulated with at least 60dB of attenuation, for troubleshooting training variable attenuators are preferred however not mandatory).

Chassis configurations should include as a minimum:

  • ODRs should be a matching pair that is same sub band and TR spacing with one being Tx High and the other Tx Lo.
  • Ethernet tester
  • Digital Multimeter


  • Sufficient in size to handle all participants, instructor, desks, chairs, classroom equipment.
  • The room must have enough 110 AC (220) AC power and air conditioning to operate equipment, all student’s client’s PC’s and the server or radio as required.


  • Marker board, SVGA or Overhead projector and screen

Desk and chairs

  • Desks or workstations with enough room for each student to write have open books, client PC and / or, keyboard and monitor.

Internet Access

  • Internet access through the server or through client PC.

Download description

STR 4500 & CTR 8740 Installation, Operation and Maintenance

Course description (PDF)

Pricing & scheduling

Please contact your Aviat local sales team for a quote or email

Course specifics

  • Duration: 3-day
  • Capacity: 10
  • Materials provided:
    • Instruction and User Manuals (USB)
    • Student Handbook (e-Book)
    • Datasheets (USB)

Target audience

This course is intended for installation and service personnel responsible for installation, configuration, and maintenance procedures for the STR 4500 & CTR 8740 product.

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