Morningstar EIA-485 / RS-232 Communications Adapter RSC-1

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Morningstar EIA-485 / RS-232 Communications Adapter RSC-1


Morningstar's EIA-485 / RS-232 Communications Adapter (RSC-1) enables networking capability by converting a controller or inverters RS-232 port to a standard EIA-485 serial connector. The RSC-1 may be used with any Morningstar controller or inverter equipped with a RS-232 port.


  • Allows up to 128 Morningstar products to communicate on the same communications bus and over much greater distances thanwith RS-232

  • All data is transmitted via MODBUS protocol

  • Removable four (4) position EIA-485 terminal

  • 9-pin RS-232 connector (male)

  • Status LED for monitoring and diagnostics

  • Molded tabs for attachment to 35mm

  • standard DIN rail

  • RS-232 ribbon cable with low-profile connectors


Compatible with:

  • TriStar Controller

  • TriStar MPPT Controller

  • SunSaver MPPT Controller

  • SunSaver Duo Controller

  • SureSine Inverter

  • Relay Driver

$56.00

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Additional Information

Part Number RSC-1
Length 2.83 in.
Width 0.90 in.
Height 1.37 in.
Weight 0.08 lbs.
Warranty 5 Years
Replaces: RSC-1
Brand Morningstar Corporation
Additional Information Data Sheet

Morningstar’s EIA-485 / RS-232 Communications Adapter (RSC-1) enables networking capability by converting a controller or inverter’s RS-232 port to a standard EIA-485 serial connector. The RSC-1 may be used with any Morningstar controller or inverter equipped with a RS-232 port. By converting to EIA-485, the RSC-1 allows up to 128 Morningstar products to communicate on the same communication bus and over much greater distances. Typical configurations include:

  • Networking several TriStar and/or TriStar-MPPT controllers
  • Adding Morningstar’s PC Meterbus Adapters (MSC) for use with an RJ-11 port in multi-device networks. 
  • Adding Morningstar’s Relay Driver to a network 
  • Integrating any compatible Morningstar product into an existing EIA-485 network, such as those used by industrial control or SCADA systems.

All data is transmitted in the form of MODBUS protocol. This industry standard was chosen for its robust design and high level of compatibility with a variety of equipment. Each Morningstar product has its own MODBUS specification (see our website for full details) that covers the data available from each products specific functions.

Key Features and Benefits:

  • Removable four (4) position EIA-485 terminal 
  • Power Input Voltage 8V – 16V 9-pin RS-232 connector (male)
  • Self Consumption 8-16mA Status LED for monitoring and diagnostics 
  • Baud Rate 9600 baud Molded tabs for attachment to 35mm standard DIN rail 
  • EIA-485 Network Unit Load ¼ RS-232 ribbon cable (not shown) with low-profile connectors
Morningstar EIA-485 / RS-232 Communications Adapter RSC-1

Morningstar EIA-485 / RS-232 Communications Adapter RSC-1. Morningstar's EIA-485 / RS-232 Communications Adapter (RSC-1) enables networking capability by converting a controller or inverters RS-232 port to a standard EIA-485 serial connector. The RSC-1 may be used with any Morningstar controller or inverter equipped with a RS-232 port. Allows up to 128 Morningstar products to communicate on the same communications bus and over much greater distances thanwith RS-232 All data is transmitted via MODBUS protocol Removable four (4) position EIA-485 terminal 9-pin RS-232 connector (male) Status LED for monitoring and diagnostics Molded tabs for attachment to 35mm standard DIN rail RS-232 ribbon cable with low-profile connectors Compatible with: TriStar Controller TriStar MPPT Controller SunSaver MPPT Controller SunSaver Duo Controller SureSine Inverter Relay Driver

  • Price: $56.00 - In stock
  • Brand: Morningstar Corp.