iLM8 User Manual
15
GPIO – A Female DB-9 connection that allows iLM8 to be monitored or controlled externally. Opto-
isolated inputs will be triggered by a voltage of 5VDC.
DB-9 Female Port
on iLM8 Rear Panel
Output 1: Relay 1 is Normally Open. Upon an AES lock loss failure, this relay will close. When
the failure is remedied, the relay will open.
Output 2: Relay 2 is Normally Open. Upon a hardware failure (i.e. Internal Communications
Failure), the relay will close. When the failure is remedied, the relay will open.
Input 1: Momentary voltage detected on this port will cause iLM8 to reset the infinite average for
the surround inputs. As long as the voltage is present, iLM8 will hold the infinite average value
in a reset state. This allows for pause and reset of the infinite average on one GPI line.
Input 2: Momentary voltage detected on this port will cause iLM8 to reset the infinite average for
the auxiliary input. As long as the voltage is present, iLM8 will hold the infinite average value in
a reset state. This allows for pause and reset of the infinite average on one GPI line.
Input 3: Momentary voltage detected on this port will cause iLM8 to toggle pause of the infinite
average for the surround input.
Input 4: Momentary voltage detected on this port will cause iLM8 to toggle pause of the infinite
average for the auxiliary input.
NETWORK - Used for logging or to update iLM8’s firmware. To connect directly to a PC without use of
a network switch or hub, a crossover cable is required. Firmware updating is accomplished via UDP
Port 44600. Please refer to the iLM8 Remote Dashboard section of this manual for more details on
logging, or the Firmware Update section of this manual for the update procedure.
PSU 1 - IEC320 port to connect to AC Mains. The internal power supply is auto switching and will work
on 120VAC-60Hz or 240VAC-50Hz electrical power systems with a maximum total current draw of 25W
(>.25A 120VAC or >.15A 240VAC).
Please connect iLM8 to a properly grounded uninterruptible power supply (UPS) to protect
against power surges and low-voltage conditions. iLM8 may be combined with other devices on the
output of the UPS as long as the total load is within the UPS’ capacity. Consult your UPS manual for
details.
Pin
Signal
1
Output Relay 1 N.O.
2
Relay 1 Common
3
Optical Input 1
4
Optical Input 2
5
Optical Input
Common
6
Output Relay 2 N.O.
7
Relay 2 Common
8
Optical Input 3
9
Optical Input 4
