Voltage-Signalling Cable for dumb UPSes

Voltage-Signalling Cable for “dumb” UPSes

NOTE. YOU DO NOT HAVE THIS CABLE UNLESS YOU BUILT IT YOURSELF. THE SIMPLE-CUSTOM CABLE IS NOT AN APC PRODUCT.

For “dumb” UPSes using voltage signalling, if you are going to build your own cable, we recommend to make the cable designed by the apcupsd team as follows:

	SIMPLE-CUSTOM CABLE
Signal Computer			UPS
	DB9F	4.7K ohm	DB9M
DTR	4	--[####]--*		DTR set to +5V by Apcupsd

CTS	8	----------*---------	5	Low Battery
GND	5	--------------------	4	Ground
DCD	1	--------------------	2	On Battery
RTS	7	--------------------	1	Kill UPS Power

List of components one needs to make the Simple cable:

1.One (1) male DB9 connector, use solder type connector only.

2.One (1) female DB9/25F connector, use solder type connector only.

3.One (1) 4.7K ohm 1/4 watt 5% resistor.

4.resin core solder.

5.three (3) to ﬁve (5) feet of 22AWG multi-stranded four or more con- ductor cable.

1.Solder the resistor into pin 4 of the female DB9 connector.

2.Next bend the resistor so that it connects to pin 8 of the female DB9 connector.

3.Pin 8 on the female connector is also wired to pin 5 on the male DB9 connector. Solder both ends.

4.Solder the other pins, pin 5 on the female DB9 to pin 4 on the male connector; pin 1 on the female connector to pin 2 on the male connec- tor; and pin 7 on the female connector to pin 1 on the male connector.

139 UPS control system specifications

APC UPS (Uninterruptible Power Supply) control systems are vital components for ensuring uninterrupted power supply and protecting critical equipment from power interruptions, surges, or fluctuations. Designed by Schneider Electric, APC UPS systems are renowned for their high quality and reliability. They utilize advanced technologies and features to suit diverse applications, from home offices to large industrial settings.

One of the main features of APC UPS systems is the ability to provide backup power during outages. This is achieved through a battery system that activates immediately when the mains power fails. This seamless transition minimizes downtime and ensures that electronic devices continue to operate, protecting data integrity and equipment lifespan.

Another significant characteristic of APC UPS systems is their intelligent management capabilities. Most models come with PowerChute software, which provides users with real-time monitoring of power conditions and the status of the UPS. This software allows for graceful shutdowns of connected devices during extended outages, thereby preventing data loss and damage to devices.

APC UPS systems also incorporate advanced technologies such as Automatic Voltage Regulation (AVR). AVR technology ensures that the output voltage remains stable by correcting minor fluctuations without switching to battery mode. This not only prolongs the battery life but also provides a consistent power supply to the connected equipment.

Thermal management is another critical aspect of APC UPS control systems. The design often includes efficient cooling systems that prevent overheating, ensuring optimal performance and longevity of the unit. Some models feature EcoMode, which reduces energy consumption and lowers operational costs by working at high efficiency only when battery backup is not required.

APC UPS systems are designed with scalability in mind. Users can easily add more batteries or connect additional UPS units to accommodate growing power needs. Features such as hot-swappable batteries and modular design facilitate easy upgrades and servicing without interrupting power supply.

In terms of connectivity, APC UPS products often feature multiple options including USB, RS-232, and network management capabilities. This enables users to connect remote management tools and integrate the UPS with existing IT infrastructure.

In summary, APC UPS control systems deliver reliability, efficiency, and advanced technology features that cater to a wide array of power protection needs, making them a trusted choice for individuals and businesses alike.

APC UPS control system manual Voltage-Signalling Cable for dumb UPSes, 139

Models: UPS control system

Voltage-Signalling Cable for “dumb” UPSes

139

UPS control system specifications