Figure 4-2 Display, power and monitoring cable connections
4.2.3 Communication
There are two RJ-45 ports present on the unit for communication with third party monitoring systems to
enable remote monitoring of the unit. The RS485-1 (With 12 V power supply) could connect with the SIC
card monitoring kit. For detailed installation, please refer to SIC Field Instructions. The RS485-2 can be used
for communication with Vertiv rPDU. The aforementioned connections are shown in Figure 4-3 and Table
4-1.
NOTES:
• The VRC has only one slave port for master (Modbus RTU slave). It cannot support two Modbus RTU
masters simultaneously.
Figure 4-3 Communication cable connections
Table 4-1 Communication port description
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