Housekeeping; Hardware Requirements - Eaton Powerware 9315 Operation Manual

Remote Notificaton

8.2.3 Housekeeping

When the modem is idle, the UPS pings (tests for connection) the modem by sending an
AT" to the modem at five-minute intervals. If the modem does not respond correctly, by
sending either OK" or 0" to the UPS, the UPS attempts to re-initialize the modem. After a
successful re-initialization, the UPS returns to the Housekeeping function. If the
re-initialization is unsuccessful, two more attempts to re-initialize the modem are made
before the UPS disables all Call Out attempts. Re-initialization is then attempted every ten
minutes or until the communication mode is changed by the UPS front panel controls (or
the modem re-initializes). For each unsuccessful attempt, the UPS logs a modem failure
event into the event log. When the modem link is confirmed, the UPS communication
resume normal operation and Call Out is enabled.

8.3 Hardware Requirements

The following hardware components are required to connect the Remote Notification
function.
A
Modem: Basic external PC modem supporting the following AT commands.
E0
M0
N0
Q0
V0
X0
&A0 − Connect as answering modem when auto-answering.
&D0 − Ignore status of DTR signal.
&K0 − Disable local flow control.
&Q5 − Communicate in error control mode.
NOTE Consult the modem manufacturer's manual to confirm that the above commands
are supported by your modem.
A
Standard serial cable with a male DB−25 connector on both ends.
A
DB−25 null modem adapter.
All the above items can be acquired at your local computer products supply store.
An alternative to purchasing a cable is to build your own serial cable using the following
pin out description:
Male DB-25
Pin 7
Pin 2
Pin 3
8−4
EATON Powerware
− Do not echo characters in command state.
− Turn speaker off.
− Handshake only at speed specified by S37.
− Return result codes in both originate and answer mode.
− Display result codes as numbers.
− Provide basic result codes: CONNECT, NO CARRIER, and RING.
Male DB-25
Pin 7
Pin 2
Pin 2
9315 UPS (300–500 kVA) Operation Manual S 164201119 Rev F www.powerware.com
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