Installation Guide

Document Version: 11 23 | P a g e

11 Power Outputs

11.1 Positive Drive

The Positive Drive output supplies power to MiX 4000 accessories. There are four Positive Drives in total.

 This output is controlled by the MiX 4000 and is configured in the vehicle properties of the

Fleet Manager Application software.

 Access to these outputs is described in section 5.5.

 Do NOT connect an external voltage to the positive drive line.

Positive drive 1 can drive at least 1A and is suitable for powering up capacitive loads such as a MiX Rovi

terminal, while the remaining drives can manage 250 mA each. These circuits are protected against over

current and voltage. Should “Positive Drive 1” be occupied already and it is necessary to drive more peripheral

devices (e.g. MiX Rovi, MiX Display, etc.) that draw more than 250 mA at any stage, it is advisable to make

use of an alternative relay to ensure reliable functionality.

Below is a functional block diagram that describes how to wire such a device.

Please refer to the Starter Interrupt section 8 of this document, for more details.