Note: If the SMA connector is not there, an internal antenna is attached inside ARES. 8.2

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Fracsun ARES CS5 Install Manual, revA

Do not overtighten

Note: If the SMA connector is not there, an internal antenna is attached inside ARES.
8.2
M12 connection
The M12 circular receptacle is located on the bottom-side of ARES. This connection is normally used to connect the
ARES and Wash Extension devices together for internal communication purposes. If a Wash Extension was supplied
with your ARES device, connect the supplied M12 cable assembly between the two devices.
Orient and insert the cable into the M12 receptacle and gently rotate the metal ring until locked in place. Do not
overtighten.
8.3
(Optional) Modbus RTU master / datalogger / SCADA system
By default, the ARES device is configured as a self-powered IoT cellular device, without any external Modbus RTU
connection required. The device turns on, takes a few measurements, sends the data to the cloud, and then goes
into a low-power sleep state to maintain optimal battery voltage.
8.3.1 Modbus-only mode
When a more robust Modbus connection is required, a different mode (Modbus-only mode) can be enabled.
Modbus-only mode turns off the internal cellular modem and disables all mobile connectivity. This mode is helpful in
locations without cellular signal or mandatory NERC compliance. Modbus-only mode will bypass the low-power sleep
state and cellular cloud functions, but the microcontroller will always remain ON to be available for Modbus polling.
Please contact Fracsun to learn more about connecting ARES to a Modbus RTU master, datalogger, or SCADA
system.
Figure 8-1: Blade antenna
oriented straight and
connected to SMA connector

Figure 8-2: M12 circular connection on the ARES botom side

Installation Manual - ARES CS5 with cellular mode, rev.A
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