Specifications

Proposal Number PSDF #P09-0004
SWITCH PANEL
The switch panel shall be a Class 1 Smart Programmable Switch (SPS) panel installed as a multiplexed node
to provide input and output information to the apparatus electrical system. The panel shall have ergonomic
rubber molded rocker type switches with backlighting.
The panel shall include one (1) function as a master control switch to allow for pre-selection of response
mode functions. The remaining switches shall be programmed and labeled with the manufacturer standards
as to the custom options selected for the vehicle.
ELECTRICAL SYSTEM
The apparatus shall be hard wired or equipped with a Class 1 ES-Key Management System or equivalent
multiplex system for the complete control of the electrical system devices. This management system shall be
capable of performing load management functions, system monitoring and reporting, and be fully
programmable for control of the electrical system.
The ES-Key system shall utilize a Controller Area Network (CAN) to provide multiplexed control signals for
"real time" operation. The system shall consist of the following components:
 Universal System Manager (USM) - The USM device shall be the CAN network controller
and provide various functions to the apparatus such as load management. The USM shall be
programmed from a network interface to a PC computer.
 Power Distribution Module(s) (PDM) - The PDM shall be a control device on the network
with a primary function as power distribution. Receiving control signals from the USM the
PDM turns on and off relays providing power to its connected loads. The PDM also shall
contain digital switch inputs allowing for input clustering throughout the apparatus.
 Information Display Module - for displaying text, warnings and diagnostics. The information
Display Module shall allow the fire department to access and change load management
shedding priority and maintenance text listing the routine maintenance items and lubrication
capacities on the apparatus.
 Input / Output Module - The module shall have 16 inputs to communicate with the USM and
3 outputs for various chassis functions.
The system shall provide diagnostic capabilities for troubleshooting the electrical system of the apparatus.
CHASSIS COLOR CODED WIRING
All chassis wiring shall be type "GXL" in accordance with S.A.E. J1128 and NFPA-1901. ALL wiring shall
be COLOR CODED and continuously marked with the circuit number and function.
All wiring to be covered in nylon heat resistant "HTZL" loom rated at a minimum of 300 degrees F
exceeding the heat requirements of NFPA-1901.
A battery "loop back" ground circuit shall be supplied for the EDS system to reduce the possible effects of
Electromagnetic and Radio Frequency Interference.
The chassis cab, engine and transmission shall be electrically bonded to the chassis frame rails with braided
ground straps.
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