GILLIG LOW FLOOR, Руководство по обслуживанию

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Electrical System
382
MULTIPLExING SySTEM
The coach uses the Dinex-MPX multiplex system made by the I/O Controls Corporation. Multiplexing
makes it possible to move large amounts of electrical sensor and switching information between remote
locations on the coach using only a small cable. This eliminates a huge wire bundle (conventional wiring
harness) still found on some buses. Multiplexing also provides better control and troubleshooting capa-
bilities for the electrical system.
A multiplexing service manual from I/O Controls, Dinex T2 Multiplex
System for Gillig Bus , is included on your Gillig documentation CD.
For the most up-to-date information, contact the I/O Controls Corporation.
I/O Controls Corporation
1359 West Foothill Blvd.
Azusa CA 91702
Phone (626) 812-5353
www.iocontrols.com
Theory of Operation
The multiplexing system consists of modules installed at
various locations on the coach (refer to Figure 9-23 for loca-
tions). “Clean” power for the system is provided by a unit
mounted in the Rear Enclosure Electrical Panel. The system
works as follows: One of the modules, the D2, is a program-
mable master module “brain” unit. The others are “slave”
units, which either inform the rest of the system of inputs
from the coach and inputs from the master module, or direct
power to outputs at the command of the master module.
An input (from a switch, sensor, etc.) is received by a mod-
ule. The module will send a signal to the D2 master module.
Each module has a screw-on “Intelligent Key” (Figure 9- 22)
which uniquely identifies it on the network. Modules pro -
grammed to take action when they get a particular command
will do so. This process continues constantly; every module
is constantly in communication with the D2 master module.
Figure 9-22, ID Key with Safety Tether