4 wires connection

SA2

SA1

SA2SA1

1

1

5

4

3

2

1

 

8

 

8

 

 

OFF ON

 

OFF ON

 

 

 

 

 

 

 

 

 

 

T +

T -

R +

R-

 

 

 

 

 

 

5V

 

master

 

slave

 

 

slave

Rp

 

 

transmitt

 

receiver

 

 

receiver

 

 

 

 

 

 

 

 

 

 

polarity

 

T-

R-

 

R-

R-

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

termination

1

 

 

 

 

 

 

Ra

 

Ra

 

 

 

 

 

 

 

 

 

termination

 

 

polarity

 

T+

R+

2

R+

R+

2

Rp

 

 

 

 

 

 

 

 

 

 

0V

 

transmit data

 

receive data

 

 

receive data

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

 

 

Rp

 

 

slave

 

 

slave

 

 

slave

 

 

 

receiver

 

transmitt

 

 

transmitt

 

 

 

 

R-

T-

 

T-

T-

 

 

connection if

 

 

3

 

 

3

Ra

end of the line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

connection if

 

 

 

 

 

 

 

end of the line

 

 

 

 

 

 

 

 

 

 

R+

T+

4

T+

T+

4

 

 

 

 

 

 

 

 

Rp

 

 

 

 

 

 

 

 

 

 

0V

 

receive data

 

transmit data

 

 

transmit data

 

 

 

 

 

 

Master unit

 

 

 

Card of an intermediate cabinet

 

Card of an end-of-line cabinet

Card settings of an intermediate cabinet

SA2

SA1

 

 

 

OFF

3 2 1

ON

 

6 5 4

Link without polarity and without termination.

 

8 7

 

 

OFF ON

 

Others settings

 

 

SA2

SA1

 

 

 

OFF

3 2 1

ON

 

7 6 5 4

Link with termination.

 

8

 

ON

OFF

3402230800/AC - 11

Page 11
Image 11
APC 66123 installation manual Link with termination

66123 specifications

The APC 66123 is a high-performance uninterruptible power supply (UPS) designed to ensure optimal power availability for critical electronic systems. Widely recognized for its reliability, the APC 66123 is a popular choice among businesses and individuals who require a robust power solution to guard against outages and fluctuations.

One of the standout features of the APC 66123 is its advanced battery management technology. This governor ensures efficient charging and extends the overall lifecycle of the batteries, which is crucial in maintaining sustained operations during power interruptions. The UPS employs a twin conversion design, delivering clean and consistent power that protects sensitive equipment from surges and spikes.

Additionally, the APC 66123 is equipped with a smart management display that provides real-time monitoring and status updates. Users can easily access essential data, such as battery level, load capacity, and overall operational health, contributing to improved decision-making in power management. The user-friendly interface makes it simple for operators to configure settings and diagnose potential issues.

The UPS features multiple outlets for connecting several devices simultaneously, along with USB and serial connectivity options for integrating with other management systems. This flexibility is ideal for IT environments where multiple servers and network devices need protection. The APC 66123 also supports various communication protocols, allowing it to integrate seamlessly with existing power infrastructure.

Another important characteristic of the APC 66123 is its compact and space-saving design. Its efficient footprint ensures that it can be easily integrated into any workspace without sacrificing valuable real estate. Additionally, the unit operates quietly, making it suitable for use in office environments where noise levels must be kept to a minimum.

In terms of safety, the APC 66123 is certified by various international standards, ensuring compliance with stringent safety regulations. This certification guarantees that the unit not only performs effectively but also operates safely, providing peace of mind to users.

In conclusion, the APC 66123 is an exceptional choice for those seeking a reliable and efficient UPS system. With its advanced technology, user-friendly features, and commitment to safety, it serves as a critical solution for maintaining power continuity in diverse settings. Whether for personal use or as part of a larger power management strategy, the APC 66123 stands out as a trusted choice for safeguarding essential electronic systems.