RS232 Interface Port
14
RS232 Pin definition:
NC ....................1
6 ....................NC
TXD...................2
7 ....................NC
RXD ..................3
8 ....................NC
NC ....................4
9 ....................NC
Signal Ground ..5
*pin2: PC receives line RS232 data from UPS.
*pin3: PC transmits line RS232 data to UPS.
*pin5: signal ground.
*other: not used.
The RS232 communication port provides the following features.
1. Monitoring charger status
2. Monitoring battery status and condition
3. Monitoring inverter status
4. Monitoring UPS status
5. Monitoring the utility status
6. Providing the power switch function for the computer to turn on/off the utility on
schedule. To save power UPS data will be provided at 2400 baud rate and is made up
of 8 bit, 1 stop bit, and no parity bit. All the information is provided in ASCII format.
HARDWARE:
BAUD RATE . . . . . . . . . . . . . . . . . 2400 bps
DATA LENGTH . . . . . . . . . . . . . . . . . . 8 bits
STOP BIT. . . . . . . . . . . . . . . . . . . . . . . 1 bit
PARITY . . . . . . . . . . . . . . . . . . . . . . . NONE
CABLING:
COMPUTER
UPS
RX
(pin2)
TX
(pin2)
TX
(pin3)
RX
(pin3)
GND
(pin5)
GND
(pin5)
P73220uk_Gold_UPSMan 27-05-2002 15:01 Page 14
