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10.4. Serial Connection (Option)
There is an option to control your system remotely from a laptop/ PC via the RS-232 connection (the
“PC PORT”) on the front panel of the first HELIX DN9340E/DN9344E unit. It is possible to connect to
other HELIX DN9340E/DN9344E units from the rear Ethernet port(s) when using a serial connection,
but note that this will be slower than using Ethernet.
10.4.1 Serial connection details
The system set up for serial connection is illustrated below.
10.4.2 Connection and Configuration Procedure
The HELIX RCS laptop/PC is connected to the daisy chain as follows:
To connect, set up and configure your system for serial operation
1 Connect the HELIX DN9340E/DN9344E units in a daisy chain configuration, see
Section 10.2.1.
2 Power up the HELIX DN9340E/DN9344E units and assign each one a unique Comms
channel, as described in Sections 7.2 and 15.2.
Note The order of the addresses does not need to mirror the order of the daisy chain
networking, but each unit MUST have a unique comms channel address.
3 Referring to the following table, connect your laptop/PC to the first HELIX unit in the
daisy chain.
HELIX DN9340E Unit
Connection
Laptop/PC
Connection
Cable/Converter Required
D9 COM port Host cable RS-232 input to front panel
“PC PORT”
USB port KK systems USB/232 converter plus host cable
For details of converters plese refer to
http://www.klarkteknik.com/faq_connections.htm