The Johnson Controls MS-NAE5510-1 network engine supports two N2 or two BACnet MS/TP (RS-485) trunks (or one N2 trunk and one BACnet MS/TP trunk).
This unit has a chip housing; however, this does not affect its ability to function properly.
Configuration:
• Power Input: 24 VAC
• RS-232-C port
Quantity: 2 • USB Serial Port
Quantity: 2 • Number of RS-485 ports: 1
• Number of Ethernet ports: 1 See the chip housing’s

MS-NAE5510-1