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SONIX
TM
Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL
TM375 / A June 2022 www.eaton.com
3.3 Installation and connectivity
The unit should be installed securely using appropriate
fi xings.
ote:
N
The goose-neck microphone is not designed to be de-mounted
from the unit.
Warning:
Potential for sharp edges and corners during
installation.
3.3.1 Data and Audio connections
Data and audio connections to the unit should be wired
with 2 twisted pair and screen cable, with both individual
and overall screen for improved noise performance.
The unit uses 1 pair for outgoing audio with incoming
phantom power superimposed on the top. The second
pair is used for bi-directional RS485 at 38,400 8-N-1
baud serial for control and status reporting. The screen
connection is required as part of the 0V return. The
maximum cable distance that the system can support
for an Hmi-26 is 750 m, connections longer than this
are not supported and are likely to result in un-reliable
operation.
Connections to a Sonix Hmi-Tu should be wired pin-to-
pin without any crossover.
A side PA/GA
ASSIGNMENT
CONNECTION
2off Twisted pair, individual and
overall screen.
1.5 mm² to 2.5 mm² (max ferruled)
SWA / SWB
Audio 1 +
J3 – 1
Audio 1 -
J3 – 2
Data 1 +
J3 – 3
Data 1 -
J3 – 4
Screen
J3 – 9/10
Table 1 - A Side data/audio cable connection detail
Figure 2 - A-Side Data and Audio
B side PA/GA
ASSIGNMENT
CONNECTION
2off Twisted pair, individual and
overall screen.
1.5 mm² to 2.5 mm² (max ferruled)
SWA / SWB
Audio 1 +
J5 – 1
Audio 1 -
J5 – 2
Data 1 +
J5 – 3
Data 1 -
J5 – 4
Screen
J5 – 9/10
Table 2 - B Side data/audio cable connection details
F
igure 3 - B-Side Data and Audio
0%
VU Meter
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate
PUSH TO TALK
Zone 1
Zone 2
Zone 3
Zone 4
Zone 5
Zone 6
Zone 7
Zone 8
Zone 9
Zone 10
Zone 11
Zone 12
Monitor
Local Att
LED Test
Fault Ack
100%
Health
Busy
Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B
0%
VU Meter
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate
PUSH TO TALK
Zone 1
Zone 2
Zone 3
Zone 4
Zone 5
Zone 6
Zone 7
Zone 8
Zone 9
Zone 10
Zone 11
Zone 12
Monitor
Local Att
LED Test
Fault Ack
100%
Health
Busy
Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B
