User's Manual

Hardware Requirement Specification

(HRS)

Orion Energy Management Doc.No: 61 8003 011

Valid from

Revision

Author(s): Jan Elfstrom Page 11/25

CONFIDENTIAL ©TIMELOX AB

5.2.2 Housing

5.2.2.1 The TC shall be designed to fit the housing of the UI and the Thermostat

Controller Expander device

5.2.3 Electrical interfaces

5.2.3.1 The electrical interface between the TC and other modules shall be over a

6-pin, tin plated connector suitable for a JST PHR-6 connector plug

5.2.3.2 The TC module I/O shall tolerate voltages in the range 3 – 5VDC

5.2.3.3 The TC module I/O output voltage-levels shall be in the range 0 - 5VDC

5.2.3.4 Logical high level shall be minimum 3.0V

5.2.3.5 Logical low level shall be maximum 0.3V

5.2.3.6 A connector for the MCU BDM shall be included in the design

5.2.4 I/O Connector

5.2.4.1 The TC shall have a I/O connector for controlling external systems, e.g. air-

handlers

5.2.4.2 The TC module I/O shall tolerate voltages up to 30VDC

5.2.4.3 Logical high level shall be minimum 5.0V

5.2.4.4 Logical low level shall be maximum 0.5V

5.2.4.5 The I/O connector shall be of the type Molex KK 2695 2.54mm or

equivalent

5.2.4.6 The I/O connector shall have the following pin-out:

1- W/W2 – Heating (Output)

2- Y/W1 – Cooling / Compressor (Output)

3- G1 – Fan 1 (Output)

4- G2 – Fan 2 (Output)

5- G3 – Fan 3 (Output)

6- RV – Reversing valve (Output)

7- Emergency Heating - Outputs

8- Door Switch – Interior (Intput)

9- Door Switch – Exterior (Intput)

10- Extra Input1 (Intput)

11- Ground