Owner's Manual

H8 DSP

Digital Interface Processor

User’s manual

Fig. 1

AUX SEL

OPTICAL SEL

TO + 12 V TO + 12 V

Fig. 3

TO GND TO GND

MEM A SEL

MEM B SEL

Fig. 2

AUX SEL

OPTICAL SEL

Fig. 4

MEM A SEL

MEM B SEL

TO + 12 V TO + 12 V

TO GND TO GND

3. KEY MEM:

To turn the processor on and off when the vehicle ignition is turned on / off.

Remark:

This signal is memory-dependent: if the processor was turned off by a car sub-key connected to the KEY MEM,

it will turn on again by turning the ignition key on. If the processor was turned off by a different method (e.g. DRC)

while the KEY MEM was still active, it will not turn on again through the KEY MEM and you will have to turn it on by

using either the DRC or REM IN.

4. OPTICAL SEL / AUX SEL:

Selection of the auxiliary OPTICAL or AUX inputs. The terminals can be set up with positive or negative selection. This

function is active at + 12V by setting up the UCS switch as shown in fig. 1, while to obtain a –BATT (GROUND) set up

the switch as shown in fig. 2.

5. MEM A SEL / MEM B SEL:

Selection of the DSP “MEM A” o “MEM B” memories. The terminals can be set up with positive or negative

selection. This function is active at + 12V by setting up the UCS switch as shown in fig. 3, while to obtain a –BATT

(GROUND) set up the switch as shown in fig. 4.

6. DRC:

DRC (Digital Remote Control) connection to configure the processor.

7 USB:

USB (type B) connection plug, to connect the processor to a PC and manage its functions through the H8 DSP

software. The connection standard is USB 1.1 / 2.0 / 3.0 compatible.