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9. Communication
9.1 USB Interface
The USB port is compliance with USB 1.1 protocol for its communication
software.
9.2 RS-232 Interface
The RS-232 port is available for UPS status monitoring and
management by software.
The cable pins for the RS-232 communication port are identified in the
following illustration.
RS-232 communication port pin assignments
Pin Signal name Function
Direction from
the UPS
1
Unused
Not applicable
2
Tx
Transmit to external device
Out
3
Rx
Receive from external device In
4
Unused
Not applicable
5
GND
Signal common
Not applicable
6
Unused
Not applicable
7
Unused
Not applicable
8
Unused
Not applicable
9
Unused
Not applicable
9.3 Dry contact Interface
The UPS incorporates build-in single programmable relay output with
potential free contact for remote alarm indication: Dry out port; And
incorporates single signal input: Dry in port. See figure in the UPS rear
panel for the locations of the ports.
The relay output can be configured by protocol command setting, the
default output contact is “Summary Alarm”; The signal input to control
UPS On/Off status does not need to be configured, its function is the
same as one button to control UPS On/Off status.
Summary of Contents for B500-R060-C
Page 1: ...B500 Online UPS User Manual B500 R060 C B500 R100 C 208 220 230 240VAC ...
Page 2: ......
Page 29: ...25 Fig 4 9 Parallel systerm wiring diagram of B500 R060 C ...
Page 30: ...26 Fig 4 10 Parallel systerm wiring diagram of B500 R100 C ...
Page 31: ...27 Fig 4 11 Parallel System Installation Diagram ...
Page 43: ...39 Fig 5 14 Main menu tree ...
Page 50: ...46 ...