Comparison Logicpower LPM-UL1550VA 1550 VA vs Logicpower LPM-L1550VA 1550 VA

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	Logicpower LPM-UL1550VA 1550 VA	Logicpower LPM-L1550VA 1550 VA
	from $132.43 up to $149.40 Outdated Product	from $128.92 up to $143.52 Outdated Product
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Type	smart	smart
Form factor	standard (Tower)	standard (Tower)
Switching to battery	6 ms	6 ms
Input
Input voltage	1 phase (230V)	1 phase (230V)
Input voltage range	145-290 V	145-290 V
Max. current	10 A	10 A
Input frequency	50-60 Hz	50-60 Hz
Bypass (direct connection)	is absent	is absent
Output
Output voltage	1 phase (230V)	1 phase (230V)
Max. output power	1550 VA	1550 VA
Rated output power	1085 W	1085 W
Output voltage distortion	10 %	10 %
Output waveform	similar to a sinusoid (approximated)	similar to a sinusoid (approximated)
Output frequency	50-60 Hz	50-60 Hz
Redundant sockets	3	3
Socket type	type F (Schuko)	type F (Schuko)
Battery
Supplied battery(s) capacity	9 Ah	9 Ah
Batteries	2	2
Cold start
Protection
Protection	short circuit protection overload protection noise filtering data line protection sound alarm	short circuit protection overload protection noise filtering data line protection sound alarm
Fuse	melting	melting
Control interfaces	USB
General
Screen
Operating temperature	0 – 40 °C	0 – 40 °C
Dimensions (HxWxD)	190x120x350 mm	190x120x350 mm
Weight	11.5 kg	11.45 kg
Added to E-Catalog	january 2017	january 2017

Control interfaces

Many modern UPSs can be connected to a computer or other special devices. This provides advanced options for monitoring the parameters of the UPS and managing its functions: without leaving the computer, you can monitor the battery status, network parameters, load, enable special modes, apply automatic adjustment, etc. Such a connection can be made according to the following standards:

— RS-232. It's a COM port. Initially designed to connect various peripherals to a computer. Today it is also quite widespread, however, due to its relatively large size, it is installed mainly on stationary PCs.

— USB. A universal port for connecting various peripherals to a computer, the most popular interface of this kind today — at least one USB port has an absolute majority of computers and laptops.

-LAN. A port used to connect to wired computer networks. Models with this interface can often be connected as a network device, which allows, if necessary, to control them from any computer on this network.

— SmartSlot. A slot in the UPS case for installing expansion cards (SmartSlot cards). The development of APC, is used mainly in the devices of its production. Such cards can provide a very diverse set of features: additional connection ports beyond the standard ones (for example, a LAN control port), a web managemen...t interface, support for SNMP, Secure HTTP and other protocols, connection of temperature / humidity sensors, and much more. To date, a wide range of cards is being produced, making it easy to choose a set of additional functions depending on the specific situation. Most UPS models have one SmartSlot, but if necessary, you can use a special expander and install two cards, and the largest models can have two slots as standard.

— "Dry contact". In uninterruptible power supplies, the term "dry contact" refers to a professional interface used to transfer data on the operation of the UPS to specialized external equipment. Such an interface usually has a whole set of contacts (on the order of 10), often in the form of terminals. And the scheme of its operation can be simply described as follows: when certain parameters are reached, the control relay closes or opens a given set of “dry contacts”, on the basis of which the control device receives information about one or another parameter of the UPS operation.