Huawei SmartLi 3.0 - Page 90

Figure 5-28 Connecting communications cables (using three parallel cabinets as
an example)
(1) Master SmartLi cabinet (with an LCD) (2) Slave SmartLi cabinets
NO TICE
● The following gure shows how to connect a communications cable between
the SmartLi and the integrated UPS (6-pin COM port).
– W1 and W2, and W3 and W4 respectively use a group of twisted-pair
cables, and other redundant core wires are cut o.
– The cable colors in the gure are for reference only. The actual cable colors
may vary.
● Communications cables between the SmartLi and other UPS models are
connected using standard network cables (8-pin COM port).
● If more than eight SmartLi cabinets are connected in parallel, a maximum of
four 15 m parallel communications cables are supported.
Figure 5-29 Communications cable between the SmartLi and the integrated UPS
(6-pin COM port)
(1) Connecting to the SmartLi
(2) Connecting to the UPS
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SmartLi 3.0
User Manual (Short-Term Backup Power) 5 Installation and Cable Connection
Issue 10 (2024-01-31) Copyright © Huawei Digital Power Technologies Co., Ltd. 81