The Smart-UPS is a series of enterprise-level uninterruptible power supplies (UPS) made by American Power Conversion (APC).^[1] The units have a Smart Slot which accepts an optional interface card providing features ranging from network connectivity to temperature and humidity monitoring.^[2] With the exception of the RT series, Smart-UPS units are line-interactive UPS systems, only running their inverters when grid power is unavailable.

All Smart-UPS units work with APC's PowerChute software which is available for a variety of OS's. Legacy Smart-UPS (Not SMX, SMT, or SURTD series) can also work with Network UPS Tools (NUT), a third party application, under Linux.^[3] The software is designed to safely and automatically shut down any connected computers before the batteries are depleted.

Models

Inside a rack mountable Smart-UPS 2200XL

There are a few different variations in the Smart-UPS lineup.

Smart Slot

Most Smart-UPS units have at least one Smart Slot, with the larger (and in many cases older) models supporting two. If more smart slots are desired this can be achieved via expansion modules such as the AP9600 or the AP9604. Installing an add-on card into the Smart Slot will provide the UPS with additional features, beyond the default serial or USB connectivity.^[2] Early cards such as the AP9605 provide SNMP functionality and telnet access.^[5] The AP9606 and later cards add a web interface that can be used to configure and administer the UPS, as well as email alerting. The AP9617 and newer cards add 10/100Base-T connectivity, Secure HTTP, Secure Shell, RADIUS, SNMP Version 3, PCNS and syslog.^[6] Models AP9612, AP9618, AP9619 and AP9631 provide environmental monitoring when used in conjunction with APC temperature/humidity probes.^[7][8][9] Model AP9618 provides Out-of-band management via modem connection in the event that the connected 10/100 ethernet connection is down. The Smart Slot is powered by the battery even when the UPS is switched off, allowing the UPS to be remotely cold-started even in a power loss situation (providing the network infrastructure is still powered up and functioning.) The card will also continue to work for a short while after the UPS has switched off due to a low battery condition.

SmartSlot card models

An AP9606 UPS Management Card

References

1. ↑ APC - Smart-UPS - Product Information
2. ↑ ^{a b} APC - UPS Network Management Cards - Product Information
3. ↑ Network UPS Tools: UPS hardware compatibility list (stable)
4. ↑ APC - Product Information
5. ↑ AP9605 Network Management Card
6. ↑ UPS Network Management Card
7. ↑ AP9618 Network Management Card
8. ↑ AP9619 Network Management Card
9. ↑ AP9631 Network Management Card