Introduction; About This Manual; Safety Considerations; Introduction To The Ccn/Jbus Gateway - Carrier CCN/J-BUS Manual Del Usuario

1 - INTRODUCTION

This accessory configures itself automatically when plugged
into a new Carrier SAS chiller.

ABOUT THIS MANUAL

This manual contains brief information about:
· the functions of the CCN/JBus gateway
· the gateway hardware connections
For any modification of the gateway configuration contact
Carrier Service.

SAFETY CONSIDERATIONS

Only personnel qualified in accordance with IEC (Internatio-
nal Electrotechnichal Commission) recommendations may be
given access to electrical components. It is particularly
recommended that all sources of electricity to the unit be shut
off before the board is plugged in. Shut off the main power
supply at the main circuit breaker or isolator.

INTRODUCTION TO THE CCN/JBUS GATEWAY

The CCN/JBus gateway is a microprocessor-based gateway
that interfaces data exchange between one and only one
Carrier Comfort Network controller and an off-network using
the JBus protocol (based on specification PI-MBUS-300 rev J).
The gateway acts as a master/slave on the CCN network and as
a slave on the JBus network.
Figure 1
Example of CCN/JBus
gateway connection
C C N B US
R S-485
C C N
C C N
C ONT R OL L E R
C C N
C C N
C ONT R OL L E R
C C N
C C N
C ONT R OL L E R
C C N B US
J B US B US
R S-485
C C N/J B US
G A T E W A Y
C C N/J B US
G A T E W A Y
C C N/J B US
G A T E W A Y
J B US B US
3