PC Board Quick References
Manual # 42-02-1P28 A3 6-29
Normal Operation
During normal operation, I/O LEDs will be lighted when the associated I/O is active (dimmer
when the output is active; brighter when the input is active). The CAR processor LED will be
continuously lighted. If I/O LEDs remain in a static condition or the CAR processor LED is not
continuously on:
• Press the RST button on the board. The I/O LEDs will all cycle and the board will resume
operation.
MC-CPI-2 Car Panel Interface Board
The MC-CPI-2 board, mounted in the car operating panel, converts the discrete closures from
the panel buttons and switches to data on the CAN serial bus and passes it through the MC-LSI
Landing System Interface board on the cartop, up the traveler to the car controller. Additional
MC-CPI-2 boards are used to accommodate rear doors or installations with many floors, COP
buttons, and lamps.
Spare assignable inputs to and outputs from CPI-2 boards are available depending upon system
configuration, front control panel only or front and rear control panels. (CONFIG 1 >CONFIG-
URE SPARE INPUTS and CONFIGURE SPARE OUTPUTS)
If the job has MC-CPI-2 boards, unused spare inputs to and outputs from these boards must be
set to NOT USED. If controller software is upgraded in the field, it is very important to check
programmable CPI-2 board inputs and outputs and verify unused connections are set to NOT
USED. page 5-25.
Spare inputs and outputs used on the CPI-2 boards must be 24VDC, not to exceed 6 Watts.
Installation Instructions
1. Turn the power off at the main disconnect.
2. Mount the MC-CPI-2 board(s) inside the COP using the supplied hardware and provid-
ing sufficient clearance for the components.
Do not replace C-RJ11-CAN-15 cables between the MC-CPI-2 and MC-LSI with RJ11 cables pur-
chased locally. These cables MUST be replaced with C-RJ11-CAN-15 supplied by MCE. For a replace-
ment cable, please contact MCE technical support.
3. Refer to the prints for the job to wire the MC-CPI-2 board. An example of a typical wir-
ing print is included in this instruction (page 6-32).
This system is designed for 24 VDC circuits only! Do not connect 120 VAC or DC to any
terminal on the MC-CPI-2 board. Connect only the 24V power from connector J6 (24V
CUSTOMER LOAD SUPPLY) to the load. (page 6-31 and see “Example: MC-CPI-2 Wiring”
on page 6-32).
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