37 (45)
Field Wiring
4.7
Networking
Figures 23 and 24 show how to add a controller to a network with OpenBAS-NWK-ETH3.
Each OpenBAS device must be powered separately.
Connect the SPI port on OpenBAS-NWK-ETH3 to the SPI port on the OpenBAS-HV-NX10
series controller with the included cable, as shown in Figure 23. See section 3.4 on page 17
for information about the SPI port.
Figure 23 Networking with OpenBAS-NWK-ETH3 with the included cable
OpenBAS-NWK-ETH3 can also connect to one of the RS-485 connections on the OpenBAS-
HV-NX10 series controller, as shown in Figures 24 and 25. See section 4.7.1 on page 37 for
information on the RS-485 ports.
Figure 24 Networking with OpenBAS-NWK-ETH3 over RS-458
4.7.1 RS-485 Details
Figure 25 shows 3 controllers networked with RS-485. The list of supported protocols is in
chapter 5.
•
22 AWG twisted pair
•
Maximum length: 1219.2 m (4000 feet)
•
Mircom recommends shielded cable
OpenBAS-NWK-ETH3
Cat 5 cable
RS-485
RS-485
Maximum 50 cm (20”)
OpenBAS-HV-NX10 Series
OpenBAS-NWK-ETH3
Cat 5 cable
RS-485
RS-485
OpenBAS-HV-NX10 Series
Summary of Contents for OpenBAS-HV-NX10 Series
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