Specifications

Intelligent Building Series C-Touch Installation Instructions

WARNING: Do not connect C-Bus Network to PC comm port (RS-232).

The RS-232 serial connection (not supplied) is wired as follows:

RJ Pin Usage Meaning

1 DCD Data Carrier Detect. Output from a DCE device.

2 DSR Data set ready. Output from a DCE device.

3 DTR Data Terminal Ready. Output from a DTE device.

Frequently used as an output from a printer to tell

the computer that its buffer is full.

4 GND Signal Ground voltage. All signals are referenced

to this voltage. It is usually the signal ground for

the equipment's electronics.

5 RXD Received data. Serial data owing from a DCE

device to a DTE device.

6 TXD Transmitted data. Serial data owing from a DTE

device to a DCE device

7 CTS Clear to send. Output from a DCE device.

8 RTS Request to send. Output from a DTE device.

NOTE: We recommend you wire the C-Touch serial connector to a wall plate

(ie. Clipsal No. 2031VRJ) where it is likely that C-Touch may need to be updated

on a regular basis.

7.0 C-Bus System Clock

The C-Touch Control Unit incorporates a software selectable C-Bus System Clock used

for synchronising data communications waveforms on the C-Bus Network. No more than

three units on any C-Bus Network should have active Clock circuitry, so this option would

normally be disabled using the C-Bus Installation Software.

8.0 C-Bus Power Requirements

The C-Touch Unit draws 40mA from the C-Bus Network. Adequate C-Bus Power Supply

Units must be installed to support the connected devices. If in doubt, consult the C-Bus

Calculator – Network Design Verication Software Utility.

9.0 Power-Up Load Status

All C-Bus Units have onboard non-volatile memory, which store the operating state of

the unit in case of a C-Bus power loss. The levels will be restored by the C-Bus output

units when power is restored. C-Touch will read these levels on power up and will reect

the current Group Address levels. Alternatively, the C-Touch unit can be congured to

enforce levels upon startup. Please refer to the Programming Guide for details.

Please refer to the C-Bus Manual for information relating to C-Bus Power Fail

Recovery Options.