Rs-232C - Toshiba UE3G2L036C61T Instruction Manual

UPS Connections
Communication Interfaces (Cont'd)

RS-232C

The RS-232C serial communication interface is available through a DB9 female connector
located on the back side of the UPS (see pages 45-46 for DB9 connector location). This
interface allows control of the UPS from a personal computer running special Toshiba
software. The computer and the UPS are connected through a serial RS-232C
communication port. The available data from the UPS, via the RS-232C communication link,
is shown below:
Operating Conditions
UPS operating status
(described as 'yes' or 'no'
'Fault' details
(described as 'occurred' or 'not occurred'
The connector pin assignment and female connector outline are illustrated below.
RS-232C Connector Pin Assignment
Pin I/O Symbol
1 This pin is not used
2 Input RXD
3 Output TXD
4 Output DTR
5 SG
6 Input DSR
7 Output RTS
8 Input CTS
9 This pin is not used
TOSHIBA
Input voltage
Output voltage
Output current
Battery voltage
Input frequency
Output frequency
Utility power OK
Low battery voltage detected
UPS in BYPASS mode
)
UPS in NORMAL mode
Input and output frequency synchronized
UPS 'Fault' occurred
DC bus overcurrent
DC bus overvoltage
DC bus undervoltage
Input overcurrent
)
Overheat
Overload being timed
Overload (allowable time exceeded)
Output overvoltage (during NORMAL mode)
Output undervoltage (during NORMAL mode)
Description
Receive data
Transmit data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
16
DB9 Female Connector Outline
(facing connector)
5 4 3 2
9 8 7
1
6