10.8kWh Fortress Battery Bank 48VDC LFP Additional Info

Application Note

Keystone Method:

for Battery Closed-Loop Comm Cable

Introduction

This describes the steps to modify a standard ethernet cable and with a new connector to build a

closed loop communication cable between Fortress battery and inverter. This is required by the

battery to inverter connector cross wiring. Please refer to the unique cross wiring for each

speciﬁc inverter as described in the Inverter Integration Guide.

NOTE: The new connector is placed on the inverter side of the cable.

Making a Battery to Inverter com cable

The following photos show the steps to build a Fortress eVault to Sol-Ark RS485 modbus cable.

Step 1:

Cut cable and trim wires

leaving the three Fortress Power com wires:

eVault - green, white/green, white/blue

eFlex – green, white/brown, brown

Step 2 & 3:

- Slide on connector and wire guide

- Position wires in their respective positions in the wire guide (make sure they are straight

across) Carefully trim wires excess wires ﬂush

Rev 1.0 - 09-23-21

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Application Note Keystone Method: for Battery Closed-Loop Comm Cable Introduction This describes the steps to modify a standard ethernet cable and with a new connector to build a closed loop communication cable between Fortress battery and inverter. This is required by the battery to inverter connector cross wiring. Please refer to the unique cross wiring for each specific inverter as described in the Inverter Integration Guide. NOTE: The new connector is placed on the inverter side of the cable.
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Application Note Step 4: Position wire guide on connector (only fits one way), close clamshell and zip tie Step 5: Cable is ready to use. The new connector gets plugged into the inverter communication port. See our specific inverter guides for details on which port to use. NOTE: On the new connector the tab to remove from socket requires you to pull back (standard connectors you squeeze). Rev 1.
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Application Note About Fortress Power Our mission is to provide compact, user-friendly, and affordable energy storage solutions using the latest technology for all homes and businesses. Fortress solar energy storage batteries can easily integrate with new and existing PV systems and work with a wide range of existing inverter and charge controller manufacturers for ease in system design. Contact Information Address: Corporate Headquarters 505 Keystone Rd Suite D Southampton, PA 18966 USA Website: www.