INFORMATION: The computer interface port in the third Generation Smart-UPS has
the following characteristics:
1) Pins 3, 5, and 6 are open collector outputs which must be pulled up to a
common referenced supply no greater than +40 Vdc. The transistors are capable of
a maximum non-inductive load of 25 mAdc. Use only pin 4 as the common.
2) Pin 2 generates a low to high transition at RS-232 levels when the UPS
signals that it is on-battery. Pin 2 is also the RS-232 data output (TXD).
3) The UPS will shut down when a high RS-232 level is sustained on pin 1 for 4.5
seconds. The UPS responds to this signal only after a delay and during a power
utility failure (when the UPS is operating on battery). Pin 1 is also the RS-232
data input (RXD).
4) Apply a momentary (approximately 1 second) high RS-232 level to pin 7 to turn
on the UPS and any attached loads. A momentary low turns off the UPS and its
load. Pin 7 should be unconnected normally.
5) DC operating voltage is available at pin 8.
12. Placing a Ps-1501vi SmartUPS in sleep mode without Powerchute PLUS
TECHNICAL DESCRIPTION: In order to conserve battery charge during a power
outage, a SmartUPS have the ability to be placed in sleep mode. Sleep mode refers to a state in which the UPS shuts down while on battery and
ceases to power its outlets. When power is restored, the UPS/Power Array wakes. At this time, the unit begins to supply power to the
connected equipment and charge its battery.
In most cases, customers utilize this function in combination with APC's
Powerchute PLUS software for their server's operating system.
However, it is NOT necessary to make a serial connection to place one of the
above products in sleep mode. This means that no matter what type of load the
units are supporting, the UPS/Power Array can be put to sleep.
By utilizing a ShareUPS or SmartSlot Interface Expander, a Symmetra, Matrix, and
SmartUPS can be put to sleep. Using the appropriate dip switches on either
accessory, one can configure them for Timer Shutdown Mode. There are several
fixed timer values on both accessories. The dip switches on these two
accessories differ. See their respective User Manuals to select the Shutdown
Mode.
In Timer Shutdown Mode, the ShareUPS or Interface Expander allows the UPS/Power
Array to operate on battery for a user-specified length of time before going to
sleep. Once the UPS/Power Array transfers to battery, the timer begins counting
down like a stopwatch. If power returns, the countdown stops. If the timer runs
down, then the accessory sends a signal to the UPS/Power Array. Once the signal
is received, an internal timer within the UPS/Power Array starts. Using the low
battery signal time value of the UPS/Power Array, another countdown begins. By
default, the low battery signal time is 2 minutes. See UPS/Power Array User
Manual to change this value. When this amount of time runs down, the UPS/Power
Array goes to sleep.
12. Maintenance And Troubleshooting the UPS
Addendum 2001--For qualified Technicians only-Confidential to US government and Powerstar Inc.
1.1 UPS Modification of parameters: Flexability Builtin
