Vertiv Liebert APM 300, Руководство пользователя

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Chapter 8 Options 65
APM 300 Integrated UPS Single Module And Parallel System User Manual
Pin No. Pin name Description
Pin 9 RXD_PC, for communication to PC, receive terminal Reserved, for factory commissioning
Pin 21 TXD_PC, for communication to PC, send terminal Reserved, for factory commissioning
Pin 13 GND, common GND
Power GND, dry contact signal input
common GND
Others NC
Cable options
Emerson provides three cable options to connect the DB25 connector of the relay card, to suit the user's
different requirements on the functions of the connector.
Figure 8-5
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Figure 8-7 show the appearance and wiring principle of each cable.
Figure 8-5 Appearance and wiring schematic of cable 1 (UFDRY21SL1)
Figure 8-6 Appearance and wiring schematic of cable 2 (UFDRY21SL2)