Vertiv Liebert APM2 - BCB Cabinet; Parallel Cable; LBS Cable; Shorting Copper Bar Kit

4. Fix the UF-RS-485 card through the fixing holes on the UF-RS-485 card panel with the screws provided with the
Intellislot port cover.
5. Connect the cable by Inserting one end of the standard network cable into the RJ-45 port 1 or RJ-45 port 2 of the
UF-RS-485 card.
NOTE: Users can select a standard network cable of required length.
6. Insert the other end of the cable to the corresponding port of the user’s equipment.
Troubleshooting
Fault: The UF-RS-485 output signal does not change with the UPS status.
Action to take: Ensure that the UF-RS-485 card is properly inserted into the Intellislot port, and the network cable is properly
connected.
9.2.9 BCB cabinet
Refer to External BCB Cabinet (Optional 1) on page134.
9.2.10 Parallel cable
Connect a module parallel cable from its PARA1 port to the PARA2 port of another module. Similarly connect other parallel
cables.
Shielded and double insulated parallel cables available in lengths of 5 m, 10 m and 15 m must be interconnected in a ring
configuration between the UPS modules, as shown in Figure 8.2 on page145.
The ring connection ensures the reliability of the control of the parallel system. Ensure to verify the cable connection before
starting up the UPS system.
9.2.11 LBS cable
Shielded and double-insulated parallel control cables (LBS1 and LBS2) available in lengths of 10 m, 15 m and 20 m. The LBS
cable must be interconnected in a branch configuration between LBS1 and LBS2 of any UPS modules, as shown in 8.4.4 on
page152.
9.2.12 Shorting copper bar kit
For the UPS with shorting copper bar of common input configuration, the user should select the shorting copper bar kit to
short the mains input and bypass input.
9.2.13 LBS adapter
The LBS adapter (see Figure 9.8 on the next page) is designed to extend the LBS function up to 150 m between the 2 UPS
units or systems of a dual bus system, and it also enables an Vertiv™ Liebert® APM2 UPS to synchronize with other UPS
models. In that case consider that APM2 can only be set as Slave.
9 Vertiv™ Liebert® APM2 Option
Configurations
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Vertiv™ Liebert® APM2 30 to 120 kVA Modular UPS User Manual