PRODUCT DESCRIPTION
System communications
SKF Multilog On-line System IMx-8/IMx-8Plus
User Manual
Revision E
1.3 System communications
The communications setup or mode determines how the IMx will communicate with
the wider system. There are 3 alternative arrangements that can be used:
• Server initiated – @ptitude Observer initiated communication
• Client-Server – the IMx is the initiator of the communication
• Stand-alone – no connection to @ptitude Observer
Whilst the first two are alternatives for @ptitude Observer/IMx communication,
illustrated diagrammatically in Figures 1 and 2, the stand-alone option refers to
operating the IMx independent of @ptitude Observer software and instead using the
companion app, to interact with it. For stand-alone mode, refer also 2.5.13.
Whilst the different network possibilities (1.3.1 to 1.3.2 below) offer alternative
connection methods, there are limitations on the permissible combinations of
communication mode and network connection method:
1. Server initiated, requires a server installed on a local network (with RJ45 or, if
applicable, Wi-Fi connection).
2. Mobile data connectivity, whether implemented within the IMx-8Plus or
external to an IMx-8, is only supported in Client-Server mode (device-initiated
communications).
The choice between using a mobile data connection or a LAN connection (RJ45 or
Wi-Fi), is part of the IMx-8Plus configuration.
1.3.1 Mobile data
In the IMx-8Plus, a built-in module provides a mobile data connection. It can work
world-wide and provides connectivity to @ptitude Observer software. Mobile data
functionality requires an activated SIM card or eSIM. An external antenna is required
(
1.5); two LTE connectors are provided.
1.3.2 Local network RJ45 or Wi-Fi module
In the IMx-8Plus, a built-in Wi-Fi module provides a Wi-Fi communication interface
(2.4 GHz) so that, where available, that can be used as the first stage of connectivity
to @ptitude Observer software, rather than a hard-wired LAN (RJ45) or the mobile
network. Similarly to mobile data, an external antenna is required for Wi-Fi, the
optional antenna offered by SKF (1.5) fulfils both roles.
An RJ45 Ethernet connection is the only network interface built-in to an IMx-8.
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