MICROWAVE COMMUNICATION

1. Line-of-Sight

2. High Capacity

3. Directional

4. Range

MICROWAVE COMMUNICATION Key Features (4)

1. Point-to-Point (P2P)

2. Point-to-Multipoint (P2MP)

3. Hybrid Link

Types of Microwave Links

Point-to-Point (P2P)

A direct microwave link between two stations using line-of-sight antennas.

Point-to-Multipoint (P2MP)

A single central station communicates with multiple remote stations at once.

Hybrid Link

A communication system that combines microwave links with other technologies (e.g., fiber optics or satellite).

1. Antenna

2. ODU (Outdoor Unit)

3. IF Cable

4. IDU (Indoor Unit)

Radio Microwave Link System Components (4)

Antenna

It Sends and receives microwave signals through line-of-sight paths.

ODU (Outdoor Unit)

It is mounted directly behind the antenna. Converts radio frequency (RF) signals to intermediate frequency (IF) signals for transmission through the cable.

IF Cable

It carries the intermediate frequency signal between the ODU and IDU. Acts as the bridge between outdoor and indoor equipment.

IDU (Indoor Unit)

It is installed inside the equipment room or shelter. Handles modulation, demodulation, and network interface tasks.

RML 1

RML for ATMC - TAGAYTAY Rx?

RML2

RML for ATMC - TAGAYTAY Tx?

RML3

RML for ATMC - NAIA1?

RML4

RML for ATMC - NAIA TWR?

RML7

RML for ATMC - NAIA2?

Space diversity (also known as antenna diversity or spatial diversity)

It is a wireless technique that uses two or more antennas at different physical locations to improve signal reliability. By separating the antennas, the system ensures that at least one receives a strong, clear signal, effectively overcoming multipath interference and signal fading.

Hot Standby (HSB)

A configuration in microwave communication is a 1+1 hardware redundancy setup where two complete sets of transceivers share the same antenna. One transceiver is actively transmitting traffic (Active), while the other is kept powered on but muted (Standby). If the active unit fails, the system automatically switches to the standby unit to prevent service interruptions.

Local Craft Terminal (LCT)

It is a useful tool to the installation and maintenance. iPASOLINK supply users GUI environment through WEB browser. Moreover, this tool supports remote connection.

Performance Monitoring (PM)

It is used to identify and isolate the problem if occurring at a particular line or path. It also monitors the quality of lines and paths. All Performance Monitoring parameters are collected every minute and accumulated to 15-minute and 24-hour (1day) statistics.

Critical

Severity level indicates that a service affecting condition has occurred and an immediate corrective action is required. Such a severity can be reported, for example, when a managed object becomes totally out of service and its capability must be restored.

Major (MJ)

Severity level indicates that a service affecting condition has developed and an urgent corrective action is required. Such a severity can be reported, for example, when there is a severe degradation in the capability of the managed object and its full capability must be restored.

Minor (MN)

Severity level indicates the existence of a non-service affecting fault condition and that corrective action should be taken in order to prevent a more serious (for example, service affecting) fault. Such a severity can be reported, for example, when the detected alarm condition is not currently degrading the capacity of the managed object.

Warning (WR)

Severity level indicates the detection of a potential or impending service affecting fault, before any significant effects have been felt. Action should be taken to further diagnose (if necessary) and correct the problem in order to prevent it from becoming a more serious service affecting fault.

When there is an interruption of signals, use the SDH/SONET/PDH analyzers and isolate the faulty section by checking the traffic signal by loopback. When executing the loopback control, set the Maintenance Mode to ON and do not release Maintenance Modes while controlling loopback

When there is an interruption of signals, use the SDH/SONET/PDH analyzers and ________________ by checking the traffic signal by loopback. When executing the loopback control, set the __________________ to ON and do not release Maintenance Modes while controlling loopback