California Installation Overview

Overview

The California state specification is different to any other current specification. The specification requires monitoring all doors and activation by different methods than that which are the current industry standard.

Overview

Here is the schematic for the standard EP1plus California configuration (Software Program ETF).

The following connections are the same as the standard installation:

Ground Connection (Black Wire - 6-PH Wire #2)
Battery Power (Red Wire - 6-PH Wire #1)
Horn Output (Green Wire - 6-PH Wire #6). This circuit must not power the horn directly. The circuit has a current limited to 500mA.

Ignition Input

(Yellow Wire - 6-PH Wire #3)

The ignition input should be connected to a source that is hot (12V/24V) when the vehicle ignition is in the 'ON' position. This input cannot also be hot when the vehicle ignition is in the Accessory position. If the input is hot in the Accessory position the installation may not comply with CA specifications.

Accessory Input

(Orange Stripe Wire - 3-PH Wire #1)

This input is used for unloading students without requiring the vehicle to have the ignition turned 'ON'. It allows the driver the ability to open the front door of the vehicle for up to four minutes without sounding the alarm. The time can be extended by cycling the key back to 'OFF' and back to Accessory again.

This connection is optional in CA, but CCMS believes that connecting this input would be beneficial.

The Accessory input must be connected to a power source that is hot when in the Accessory position (may also be hot when the ignition is hot).

To find out more about the Accessory Input, please view the Accessory Feature document.

Activation Input

(Brown Wire - 6-PH Wire #5)

This input is used in the California program for when the driver is actively engaged in loading, unloading, or escorting pupils as required by law. (Activation is taken care of by other means.)

The Brown Activation Wire (6-PH Wire #5) can be connected to the flashing red light signal system required by section 25257 CVC, or other required or permitted devices.

To activate this feature this circuit must be activated prior to turning the vehicle 'OFF' and opening the doors. It times out after 10 minutes and sounds the alarm unless the ignition is turned back to the 'ON' position. The driver can then continue their route without having to deactivate at this time.

CCMS believes that it should be connected to the 8 way flashing red light signal system. This circuit must be deactivated before the system can be deactivated.

Deactivation Input

(Blue Wire - 6-PH Wire #4)

This input is connected directly to the blue wire on the RVT.

Door Monitoring Input

(Blue stripe Wire - 3 pin OPT port Wire #2a and Wire #2b)

The system must monitor all floor level doors (CA mandated), therefore the system may only be deactivated when all doors are closed. OEM door monitoring circuits may be wired up in a variety of different ways and there are different options for door hookups depending on your vehicle.

Our system is looking for a ground when the door is open and expects an open circuit (or 12V) when the door is closed.

The blue stripe wires (Wire #2a and Wire #2b) are diode isolated from each other, and the wire/s are expected to be connected to the front door circuit on one leg and the rear door circuit on the other.

Scenario 1

When the door(s) are open, key in the 'OFF' position, ground is detected on rear door buzzer/front door circuit.
When the door(s) are closed, key in the 'OFF' position, an open circuit (or 12V) is detected on rear door buzzer/front door on the circuit.

The above scenario is our preferred installation, but due to a range of models and electrical characteristics of buses, the installation may not be possible in this fashion and may require a combination of installation approaches. Other common scenarios are shown below.

Scenario 2

When the door(s) are both opened or closed and key in the 'OFF' position, ground is detected on the door circuits.

Scenario 3

The door switch/es are connected to the bus's Multiplex system.

In either of the two above scenarios, it may be easier and less problematic to install a separate switch to achieve the required door monitoring.

To view the Door Input Schematic/all scenario options, please click here

Interior Lights / Dome Lights

(EP1plus 2-PH Wire #2 / EP2plus 5-PH Wire #4)

This is the same as a standard installation, however, in California CCM believes in connecting to all of the interior lights. If you would prefer to connect to only some of the interior lights, we strongly encourage you to have the lighting reviewed by California Highway Patrol so that you avoid noncompliance issues.

To view the Dome Light schematic, please click here.

Parking Brake Connection

To view the Parking Brake Connection, please click here