Figure 4
Connecting an NX Series or APM UPS to an NX Series or APM UPS . . . .. . . . . . . . . . . . . . . . . . . . . 2
ACRONYM
NX series
: NX product series comprises of NX, NXr, Nxc, Hipulse U, ITA(30/40 kVA) UPS
Non NX series : Non NX product series comprises of Ul33, NXL, 80-net, and any other brand UPS
General
1.0
GENERAL
Load Bus Sync (LBS) Extender/Adapter for Dual Bus UPS is designed to extend the LBS function,
up to 150m (492 ft.) between NX series or APM series uninterruptible power system (UPS) modules of a
dual bus system (DBS). The adapter also enables an NX Series or APM UPS to synchronize with other
UPS models.
Figure 1
LBS Adapter dimensions
(216.2mm)
1.8"
(45.5mm)
DY3-4ZPW
POWER ON
COM1
COM2
SWITCH
LED1
Figure 2
5.25"
(133.5mm)
Horizontal installation
DY3-4ZPW
POWER?ON
COM2
COM1
SWITCH
LED1
Figure 3
Vertical installation
1
Installation
2.0
INSTALLATION
2.1
NX Series or APM UPS to NX Series or APM UPS
!
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. For NX Series UPS except for NXr, connect the LBS cable (with two DB9 ports) to COM1 of the LBS
Signal Adapter; for NXr UPS and APM UPS, connect the end of the LBS cable (with a DB9 port
and an RJ45 port) with DB9 port to COM1 of the LBS Signal Adapter.
3. For NX Series UPS except for NXr, connect the other end of the LBS cable (with two DB9 ports) to X4 on
the parallel board (UHW241M3) in the UPS; for NXr UPS and APM UPS, connect the end of the
LBS cable (with a DB9 port and an RJ45 port) with RJ45 port to the J4 port of the bypass module
of the UPS.
4. Connect the communication cable (up to 492 ft. [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).
Figure 4
Connecting an NX Series or APM UPS to an NX Series or APM UPS
Power ON
COM1
COM2 SWITCH
Power ON
LED1
Power Cable
Connect to NX Series or APM UPS
COM1
COM2 SWITCH
LED1
LBS
Cable
Power Cable
Connect to NX Series or APM UPS
LBS
Cable
Communication Cable
up to 492 ft. (150m)
2.2
NX Series or APM UPS to Non NX Series or non-APM UPS
!
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. For NX Series UPS except for NXr, connect the LBS cable (with two DB9 ports) to COM1 of the LBS
. Adapter connectedto the UPS; for NXr UPS and APM UPS, connect the end of the LBS cable
Signal
.
(with a DB9 port and an RJ45 port) with DB9 port to COM1 of the LBS Signal Adapter.
3. For NX Series UPS except for NXr, connect the other end of the LBS cable (with two DB9 ports) to X4 on
board the parallel (UHW241M3) in the UPS; for NXr UPS and APM UPS, connect the end of the
LBS. cable (with a DB9 port and an RJ45 port) with RJ45 port to the J4 port of the bypass module of
the UPS.
4. Connect the communication cable (up to 492 ft. [150m]) to the COM2 interface of each LBS Signal
Adapter.
5. The switches of LBS signal adapters connected to the NX Series or APM UPS should be in the right
position and the switches of LBS signal adapters connected to the Non NX Series or non-APM UPS
should be in the left position (see Figure 5).
2
Installation
Figure 5
Connecting an NX Series or APM UPS to a Non NX Series or non-APM UPS
Power ON
COM1
COM2 SWITCH
Power ON
LED1
COM1
LED1
Power Cable
Connect to NX Series or APM UPS
Power Cable
Connect to Non NX Series or non-APM UPS
LBS
Cable
Communication Cable
up to 492 ft. (150m)
Table 1
Human interface - indicators and switches
Item
Description
Power port
Connect to Phase A, Neutral and Ground of output of UPS.
LED1 (red)
Power LED. It illuminates when the power is on, turns o ffwhen the power fails.
COM1
LBS Signal interface.
Connect to NX Series or APM UPS.
COM2
RS485 interface.
Connect to other Signal Adapter.
Green LED: Communication Power is OK.
Yellow LED: Adapter is connected to Non NX Series or non-APM UPS.
Switch to left: Connect to Non NX Series or non-APM UPS.
Switch to right: Connect to NX Seires or APM UPS.
SWITCH
Table 2
Electrical rating
Description
Rating
Voltage
120V-277VAC
Frequency
45-65HZ
Current
Table 3
1.5A Max.
Part number description
Description
Part Number
150 Meter Kit
NX150MLBSKIT
50 Meter Kit
NX050MLBSKIT
3
COM2 SWITCH
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