Sonix Hmi-5 Technical Manual
11
SONIX HMI-5 TECHNICAL MANUAL
TM373 / A June 2022 www.eaton.com
4.3.3 Un-used connectors
The unit has connectors which are not certified for
intrinsically safe installations and must not be used
in the hazardous area. It is recommended the unit be
removed from the hazardous area if reprogramming the
functionality of the unit is required. The connectors are
listed below:
Connector
Function
For use by Eaton
Personnel only
J2, J6
Local power
Yes
J16, J17
Audio and data expansion
Yes
J4, J8
Programming
Yes
Table 2 - List of un-used connectors
5 Unit operation
5.1 Data communications
The Hmi-5 unit communicates with the Sonix PA/GA
system rack via an Hmi Tu using a low power serial
and a balanced audio pathway. The protocol used is
a proprietary Sonix datagram format with messages
exchanged every 100ms. The datagrams contain system
status and activity from the PA/GA and access panel
status and activity going to the PA/GA rack. While
idle the Hmi-5 access panel is transmitting low level
audio that is monitored by the PA/GA rack to detect
degradation in the audio pathway.
The Hmi-5 implements different electrical interface
to the Sonix Hmi-26 access panel and this requires a
hardware link change on the Hmi Tu (see Hmi Tu manual
for details).
5.2 A & B duplication
The Sonix Hmi-5 access panel is a duplicated unit with
an A and B side. There is a small common section,
namely Microphone, Buttons and indicators. The two
sides signal each other basic status, this facilitates
passing control of the LED indicators to the side in
the best state. By default A side will control the LED
indicators.
Warning:
Both sides of an Hmi-5 need to have
identical functionality and confi guration to ensure
correct operation.
ote:
N
It is not required to use both sides, if non-duplicated operation is
required A side should be used in preference.
5.3 Microphone options
The standard Hmi-5 unit is designed and customised
for each order, which is then tailored to the user’s
requirements. Please discuss specific requirements with
your local Eaton representative before ordering.
5.3.1 Hand-held microphone
The standard microphone is a hand-held variant on
a coiled cord, complete with hanger to place the
microphone when not in use. The microphone has an
integral PTT button on the side.
In this configuration it is possible to have up to 5 push
buttons with built-in LED indicators on the unit itself.
