Tripp Lite SUT30K Owner s Manual for SmartOnline r SUT 3-Phase UPS System 20/3 - Page 26

Communication Interfaces

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6. Communication Interfaces For the positions and functions of the communication interfaces, refer to the following diagram: 1 2 3 4 5 98 7 6 (Figure 6-1: Communication Interfaces) Notes: 1. The UPS functions normally without connecting to the communication interfaces. 2. All communication interfaces may be used at the same time and will not interfere with one another's functionality. 1 SMART Slot Install an SNMP card in this SMART slot to remotely control and monitor the UPS status via a network. The Relay I/O or MODBUS card may also utilize this slot to provide dry contact or MODBUS functionality, respectively. 2 Parallel Ports The two parallel ports are for UPS parallel communication. A maximum of four UPS systems with the same capacity, voltage and frequency may be coupled using the provided parallel cable to run in parallel mode. 3 Parallel Switch When parallelling UPS systems, the DIP switches must be set up to activate the parallel function. The parallel switch includes two DIP switches. To turn on a DIP switch, switch the DIP to the down position; to turn off a DIP switch, switch the DIP to the up position. 1. When two UPS systems are paralleled, turn on each UPS DIP switch. 2. When three UPS systems are paralleled, turn off the middle UPS DIP switches and turn on the remaining DIP switches. 3. When four UPS systems are paralleled, turn off the middle two DIP switches and turn on the remaining DIP switches. OFF 11ON22 ON ON (Figure 6-2: Parallel Switch) 4 RS-232 Port The RS-232 port is built into the UPS rear panel to provide communication between the UPS and a computer. Use Tripp Lite's free PowerAlert® power management software (available for download at www.tripplite.com/poweralert) to check and monitor the UPS status via a computer. Detailed information is as follows: 1. Monitors the load level, battery status, battery voltage, UPS operation mode, input voltage, input frequency, output voltage and UPS temperature. 2. Sets shutdown delay time. 3. Enables/disables audible alerts. 4. Supports remote shutdown. 54321 5. Pin Assignment: 1) Pin 2: TXD 2) Pin 3: RXD 3) Pin 5: GND 6. Hardware 1) Baud Rate: 2400 BPS 2) Data Length: 8 bit 3) Stop Bit: 1 bit 4) Parity: None Note: Other pins are reserved and cannot be used. 9876 (Figure 6-3: RS-232 Port) 26

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6. Communication Interfaces
For the positions and functions of the communication interfaces, refer to the following diagram:
1
2
7
8
9
6
3
4
5
(Figure 6-1: Communication Interfaces)
Notes:
1. The UPS functions normally without connecting to the communication interfaces.
2. All communication interfaces may be used at the same time and will not interfere with one another’s functionality.
1
SMART Slot
Install an SNMP card in this SMART slot to remotely control and monitor the UPS status via a network. The Relay I/O or MODBUS
card may also utilize this slot to provide dry contact or MODBUS functionality, respectively.
2
Parallel Ports
The two parallel ports are for UPS parallel communication. A maximum of four UPS systems with the same capacity, voltage and
frequency may be coupled using the provided parallel cable to run in parallel mode.
3
Parallel Switch
When parallelling UPS systems, the DIP switches must be set up to activate the parallel function. The
parallel switch includes two DIP switches. To turn on a DIP switch, switch the DIP to the down position;
to turn off a DIP switch, switch the DIP to the up position.
1. When two UPS systems are paralleled, turn on each UPS DIP switch.
2. When three UPS systems are paralleled, turn off the middle UPS DIP switches and turn on the
remaining DIP switches.
3. When four UPS systems are paralleled, turn off the middle two DIP switches and turn on the
remaining DIP switches.
4
RS-232 Port
The RS-232 port is built into the UPS rear panel to provide communication between the UPS and a computer. Use Tripp Lite’s free
PowerAlert
®
power management software (available for download at www.tripplite.com/poweralert) to check and monitor the UPS
status via a computer. Detailed information is as follows:
1. Monitors the load level, battery status, battery voltage, UPS operation mode, input voltage, input frequency, output voltage and
UPS temperature.
2. Sets shutdown delay time.
3. Enables/disables audible alerts.
4. Supports remote shutdown.
5. Pin Assignment:
1) Pin 2: TXD <Transmitting Data>
2) Pin 3: RXD <Receiving Data>
3) Pin 5: GND <Signal Ground>
6. Hardware
1) Baud Rate: 2400 BPS
2) Data Length: 8 bit
3) Stop Bit: 1 bit
4) Parity: None
Note:
Other pins are reserved and cannot be used.
OFF
ON
12
ON
12
ON
(Figure 6-2: Parallel Switch)
54321
9876
(Figure 6-3: RS-232 Port)