Cooper Bussmann BU-905U-L Wireless I/O Installation Manual

The front panel contains the following components:

SMA Antenna Connector at Top of Unit

Indicator LEDs

RS232 Configuration Port

RSSI Push-Button

The LEDs on the front panel indicate the unit status:

 

 

 

LED Status

Indicates

 

 

 

 

None

No power supply.

 

 

 

OK LED Green

Current status of the unit OK.

 

 

 

OK LED Red

Fault condition detected in unit.

 

 

 

RX Led Flashes

Receiving Message.

 

 

 

CF Led ON

Module Communication Failure Output is active.

 

PG LED on

Configuration Cable Connected.

 

 

 

Output LED ON

The Output LEDS (i.e., D1, D2, D3) light when the corresponding output is active.

 

 

 

 

 

 

 

D1

 

Relay output D1 is ON (Contact Closed).

 

 

D2

 

Relay Output D2 is ON.

 

 

 

 

D3

 

Relay Output D3 is ON.

 

 

 

LEDs with RSSI Push

When you press the RSSI push button, the unit shows the signal strength by lighting the

Button Pressed

LEDs from the bottom to the top. Signal strength is the strength of the last message received

 

that was addressed to this station.

 

 

 

 

 

 

 

 

 

 

LED

 

Signal Strength

LED

 

Signal Strength

 

D1

 

More than -85 dBm

RX

 

More than -100 dBm

 

D2

 

More than -90 dBm

CF

 

More than -105 dBm

 

D3

 

More than -95 dBm

PG

 

Always on during RSSI test

Output LED flashing quickly

If an output is in communication failure, the corresponding LED flashes at 5 Hz.

 

 

 

 

D1

 

Relay Output D1 is in communication failure.

 

D2

 

Relay Output D2 is in communication failure.

 

D3

 

Relay Output D3 is in communication failure.

 

PG

 

Analog output is in communications failure.

 

 

 

 

 

 

 

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Cooper Bussmann BU-905U-L PG LED on Configuration Cable Connected Output LED on, LEDs with Rssi Push, Button Pressed

BU-905U-L specifications

The Cooper Bussmann BU-905U-L is a critical component known for its reliable performance in various electrical applications. This fuse is designed to protect circuits from overloads and short circuits, ensuring the safety and integrity of electrical systems in residential, commercial, and industrial settings.

One of the main features of the BU-905U-L is its high breaking capacity, which allows it to effectively interrupt excessive current flow without damaging connected devices. This feature makes it suitable for use in demanding environments where reliable protection is crucial. The fuse is built to handle transient events, making it ideal for applications subject to short bursts of high current.

The fuse utilizes advanced materials and technologies to enhance its durability and efficiency. Its construction includes a robust, non-combustible housing that offers excellent thermal resistance and mechanical strength. This ensures the fuse can withstand harsh operating conditions while maintaining its protective capabilities. The BU-905U-L is also designed for quick and easy replacement, minimizing downtime during maintenance.

Another significant characteristic of the BU-905U-L is its thoughtful design for ease of installation. It features a standard size that is compatible with various fuse holders, allowing for a seamless integration into existing systems. Additionally, the fuse is marked with clear ratings, enabling users to quickly identify its specifications for proper selection and installation.

In terms of electrical ratings, the BU-905U-L is designed to handle a specific voltage and current, which makes it suitable for a diverse range of applications, including motor protection, lighting circuits, and power distribution systems. These fuses come with various current ratings, offering flexibility for different load requirements.

Moreover, built on a commitment to safety and quality, Cooper Bussmann ensures that the BU-905U-L meets stringent industry standards and certifications. This not only guarantees the reliability of the product but also provides peace of mind to users knowing that their electrical systems are well protected.

In summary, the Cooper Bussmann BU-905U-L fuse combines high performance, advanced material technology, and user-friendly characteristics, making it an invaluable component in any electrical system. Whether for industrial machinery or everyday electrical circuits, this fuse provides essential protection, ensuring safety and reliability in energy management.