HP R1500 HP 3 Phase UPS User Guide - Page 75

Communication options, DB-9 communication port, Serial communications port pin assignment

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o Standalone UPS configuration-See "Powering up the standalone UPS (on page 25)." o Parallel UPS configuration-See "Powering up the parallel system (on page 39)." Communication options The UPS has serial communication capabilities through the DB-9 communication port or through an X-Slot card in one of the available bays. The UPS supports two serial communication devices. NOTE: Relay, signal inputs, and the serial port baud rates are configurable through the front panel menus. X-Slot 1 (independent) X-Slot 2 (multiplexed) HP UPS Management Module HP Parallel UPS Card HP UPS Management Module Not in use DB-9 communication port (multiplexed) Available Available DB-9 communication port To establish communication between the UPS and a computer, connect the computer to the UPS communication port using the supplied communication cable. For the communication port location, see "Installing communication options and control terminals (on page 74)." Serial communications port pin assignment Pin number Signal name Function 1 - No connection 2 TxD Transmit to external device 3 RxD Receive from external device Direction from the UPS - Out In Communication 75

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Communication 75
o
Standalone UPS configuration—See "Powering up the standalone UPS (on page
25
)."
o
Parallel UPS configuration—See "Powering up the parallel system (on page
39
)."
Communication options
The UPS has serial communication capabilities through the DB-9 communication port or through an X-Slot
card in one of the available bays.
The UPS supports two serial communication devices.
NOTE:
Relay, signal inputs, and the serial port baud rates are configurable through the front
panel menus.
X-Slot 1 (independent)
X-Slot 2 (multiplexed)
DB-9 communication port (multiplexed)
HP UPS Management Module
HP Parallel UPS Card
Available
HP UPS Management Module
Not in use
Available
DB-9 communication port
To establish communication between the UPS and a computer, connect the computer to the UPS
communication port using the supplied communication cable.
For the communication port location, see "Installing communication options and control terminals (on page
74
)."
Serial communications port pin assignment
Pin number Signal name Function
Direction from the UPS
1
—
No connection
—
2
TxD
Transmit to external device
Out
3
RxD
Receive from external device
In