6
2 Connections and Operation
firmware. Once in Bootstrap Mode you will need to load main firmware
into the device using a standalone application. Contact Sonifex for more
information.
Bypass Cancellation
To test whether the product is effective in your application, you can
configure it and then toggle DIPSwitch 4 to listen to the effect with (OFF)
and bypassed without (ON) cancellation.
GPIO Connector
This a 9 way D-type socket with the following connection details:
GPIO Pin
Pin No
Signal
I/O
Description
Pin 1
GPO1
O
General purpose output 1 - Power good
Pin 2
GPO2
O
General purpose output 2
Pin 3
GPO3
O
General purpose output 3
Pin 4
GPI1
I
General purpose input 1 - Mute input detect
Pin 5
GPI2
I
General purpose input 2
Pin 6
GPI3
I
General purpose input 3
Pin 7
12VDC -
50mA fused +12V power supply
Pin 8
DGND
-
Ground return for external circuits
Pin 9
DGND
-
Ground return for external circuits
Power Good
Pin 1 shows a power fail condition. This open collector output is normally
HIGH. Should a power failure occur, this level will go low (DGND).
Mute Input Detect
Setting the mute input detect pin 4 to DGND 0V will disable adaption.
This may prevent the canceller from becoming unstable when the input is
muted.
Ethernet Port
The Ethernet port is connected using a standard RJ-45 connector on the
rear of the panel. It is a 10/100Mbps link. The unit can be controlled
remotely over the Ethernet connection using the built-in webserver. By
default the unit is configured for dynamic addressing using DHCP and Auto-
IP. If a static IP address is required then this must be configured through the
webserver.
The connections for the RJ45 connector are as follows:
Ethernet Connector (RJ-45)
Pin No.
Function
Pin 1
Transmit data (+)
Pin 2
Transmit data (-)
Pin 3
Receive data (+)
Pin 4
No connection
Pin 5
No connection
Pin 6
Receive data (-)
Pin 7
No connection
Pin 8
No connection
Mains Power
Power is applied via a standard three-pin IEC male socket. Mains voltages
between 85V and 264V AC and frequencies between 47 and 63Hz are
accepted without adjustment.
A 2A, 5 x 20mm SB fuse is used. The Earth pin MUST be connected to
ensure safety.
