This unit makes use of components dangerous for the environment, including electronic cards and
other electronic components. Any of these components that are removed from the unit must be taken
to specialized collection and disposal centers.
Unit Dismantling
If this unit must be dismantled, this operation must be carried out only by properly trained and qualified specialized personnel. The unit must be taken to a center that specializes in collection and disposal of dangerous substances.
ii
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1.0GENERAL
8.5"
(216.2mm)
5.25"
(133.5mm)
1.8"
(45.5mm)
DY3-4ZPW
COM1
COM2
SWITCH
LED1
POWER ON
DY3-4ZPW
POWER ON
SWITCH
LED1
COM2
COM1
General
Liebert’s Load Bus Sync (LBS) Extender/Adapter for Dual Bus UPS is designed to extend the LBS
function, up to 150m (492 ft.) between Liebert NX
power system (UPS) modules of a dual bus system (DBS). The adapter also enables a Liebert NX UPS
or a Liebert Hipulse U to synchronize with other UPS models.
Figure 1LBS Adapter dimensions
Figure 2Horizontal installation
™
or Liebert Hipulse U™ series uninterruptible
Figure 3Vertical installation
1
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2.0INSTALLATION
COM1COM1COM2COM2SWITCHSWITCHPower ON
LED1
Power ON
LED1
Power Cable
Connect to
Liebert NX or
Liebert Hipulse U
LBS
Cable
Communication Cable
up to 492 ft. (150m)
LBS
Cable
Power Cable
Connect to Liebert NX
or
Liebert Hipulse U
2.1UPS Connections: Liebert NX and Liebert Hipulse U
The procedure below permits using a Liebert LBS Extender/Adapter to connect UPSs in the following
configurations:
• Liebert NX to Liebert NX
• Liebert NX to Liebert Hipulse U
• Liebert Hipulse U to Liebert Hipulse U
WARNING
!
Installation by qualified electrical personnel only—hazardous voltage may be present at the
UPS output connectors.
1. Connect the power cables of the adapter to the Phase A, Neutral and Ground output of each UPS.
2. Connect the LBS cable to COM1 of each LBS Signal Adapter.
3. Connect the other end of each LBS cable to X4 on the parallel board (UHW241M3) in the Liebert
NX UPS or the Liebert Hipulse U.
4. Connect the communication cable (up to 492ft. [150m]) to the COM2 interface of each LBS Signal
Adapter.
5. The switch of both LBS signal adapters should be in the right position (see Figure 4).
Installation
Figure 4Connections for Liebert NX and Liebert Hipulse U
2
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2.2Liebert NX or Liebert Hipulse U to Other UPS Models
COM1COM2 SWITCHCOM1COM2 SWITCHPower ON
LED1
Power ON
LED1
Power Cable
Connect to
Liebert NX or
Liebert Hipulse U
LBS
Cable
Power Cable
Connect to Other UPS models
(not Liebert NX or
Liebert Hipulse U)
Communication Cable
up to 492 feet (150m)
The procedure below permits using a Liebert LBS Extender/Adapter to connect a Liebert NX or Liebert Hipulse U UPS to other UPS models.
WARNING
!
Installation by qualified electrical personnel only—hazardous voltage may be present at the
UPS output connectors.
1. Connect the power cables of the adapter to the Phase A, Neutral and Ground Output of each UPS.
2. Connect the LBS cable to COM1 of the LBS Signal Adapter connected to the Liebert NX or the
Liebert Hipulse U.
3. Connect the other end of the LBS cable to X4 on the parallel board (UHW241M3) in the
Liebert NX or Liebert Hipulse U.
4. Connect the communication cable (up to 492ft. [150m]) to the COM2 interface of each LBS Signal
Adapter.
5. The switches of LBS signal adapters connected to the Liebert NX or the Liebert Hipulse U should
be in the right position and the switches of DBS signal adapters connected to the other model of
UPS (neither Liebert NX nor Liebert HipulseU) should be in the left position (see Figure 5).
Figure 5Connecting a Liebert NX or a Liebert Hipulse U to other UPS models
Installation
Table 1Human interface—indicators and switches
ItemDescription
Power portConnect to Phase A, Neutral and Ground output of UPS
LED1 (red)Power LED. It illuminates when the power is On, turns Off when the power fails.
COM1
COM2
SWITCH
LBS Signal interface.
Connect to Liebert NX or Liebert Hipulse U.
RS485 interface.
Connect to other Signal Adapter.
Green LED: Communication Power is OK.
Yellow LED: Adapter is connected to a UPS that is neither a Liebert NX nor Liebert Hipulse U.
Switch to Left: Connect to a UPS that is neither a Liebert NX nor Liebert Hipulse U.
Switch to Right: Connect to Liebert NX or Liebert Hipulse U UPS.
Table 2Electrical ratingTable 3Part number
DescriptionRating
Voltage120V-277VAC150 Meter Kit NX150MLBSKIT
Frequency45-65HZ50 Meter Kit NX050MLBSKIT
Current0.2A Max
Description Part Number
3
Page 8
Ensuring The High Availability
Of Mission-Critical Data And Applications.
Emerson Network Power, the global leader in enabling business-critical
continuity, ensures network resiliency and adaptability through
a family of technologies—including Liebert power and cooling
technologies—that protect and support business-critical systems.
Liebert solutions employ an adaptive architecture that responds
to changes in criticality, density and capacity. Enterprises benefit
from greater IT system availability, operational flexibility and
reduced capital equipment and operating costs.