4 hardware requirements – Powerware 9330 User Manual

Page 157

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13--5

Powerware 9330 (10 kVA--40 kVA) Installation and Operation

164201300 REV. G 061502

13.4

Hardware Requirements

The following hardware components are required to connect the Remote

Notification function.

·

Modem: Basic external PC modem supporting the following AT commands.
T

--- Tone dialing.

&F

--- Load factory defaults.

E0

--- Do not echo characters in command state.

N0

--- Handshake only at speed specified by S37.

Q0

--- Return result codes in both originate and answer mode.

V0

--- Display result codes as numbers.

X0

--- Provide basic result codes: OK (0), CONNECT (1), RING (2),

NO CARRIER (3), and ERROR (4).

&D0

--- Ignore status of DTR signal.

&K0

--- Disable local flow control.

&Q5

--- Communicate in error control mode.

S0=1 --- Auto Answering (1 ring).

S37=6--- 2400 Baud.

&W0 --- Store setup in profile O.

&Y0

--- Recall profile O on power up.

NOTE: Consult the modem manufacturer’s manual to confirm that the above

commands are supported by your modem.

·

Null modem serial cable with a male DB25 connector on the modem end and a

DB9 connector on the UPS end.

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 :

DB25 to DB9 Null Modem Interface

Male DB25

Male DB9

pin 2

pin 2

pin 3

pin 3

pin 4

pin 8

pin 5

pin 7

pin 6

pin 1, 4

pin 7

pin 5

pin 8, 20

pin 6

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