SECTION I
Theory of Operation
Page 1.5
BP+ 10-150
2/95
1.9 Phone Home Alarm Reporting
When this UPS is activated for phone home operation and the UPS senses
one of several pre-selected alarm conditions, the UPS automatically dials IPM’s
Field Service computer without human assistance and notifies IPM’s Field Service
personnel of a system problem requiring attention.
Important information downloaded during each phone home event includes:
1) UPS name, ID and serial number, 2) customer ID and phone number and 3)
list of active alarms. You obtain the following benefits from this feature:
a.
Immediate field service notification of site power or UPS problems,
even when the UPS is unattended.
b.
Increased availability due to reduced mean-time-to-repair with
automatic notification and complete remote diagnostic capabilities.
c.
24-hours per day, 7 days per week monitoring of unmanned facilities
and locations where operators are unfamiliar with the UPS. Often,
service personnel can take steps to solve a UPS problem remotely
before the user is aware that there is a problem.
An internal modem and a dedicated telephone line are required. Phone
Home Alarm Reporting can be activated only with a Field Service level of password.
It is normally done at the time of startup by our Customer Engineer.
1.10 Dial-Back Security
This security feature is provided to insure system integrity.
It prevents
“hackers” or other unauthorized persons from intentiona11y or unin-
tentionally accessing the UPS database.
Anyone calling the UPS must
establish authority through the use of a dial-back password. The unit will
validate this password against up to four passwords stored in non-volatile
memory. One of the passwords will allow direct communication to commence
with the UPS. The other three passwords will have associated telephone
numbers. If one of these three passwords receives validation, the UPS logic will
hang up and dial back the phone number associated with that password. When
connection is made, the remote operator must enter the normal privilege level
password for access to the corresponding level of monitoring diagnostics and
