44
2. Cut the CCN wire and strip the ends of the red (+),
white (ground), and black (–) conductors. (If a differ-
ent network color scheme is used, substitute appropri-
ate colors.)
3. Remove the 4-pin female plug from the fuse and con-
trol circuit breaker bracket in the main control box,
and connect the wires as follows:
a. Insert and secure the red (+) wire to terminal 1 of
the 4-pin plug.
b. Insert and secure the white (ground) wire to termi-
nal 2 of the 4-pin plug.
c. Insert and secure the black (–) wire to terminal 3 of
the 4-pin plug.
4. Insert the plug into the existing 4-pin mating connector
on the fuse or control circuit breaker bracket in the
main control box.
RJ-11 Plug Wiring —
Units on the CCN can be moni-
tored from the space at the sensor through the RJ-11connector,
if desired. To wire the RJ-11 connector into the CCN (Fig. 35):
1. Cut the CCN wire and strip ends of the red (+), white
(ground), and black (–) conductors. (If another wire
color scheme is used, strip ends of appropriate wires.)
2. Insert and secure the red (+) wire to pin J2 of the space
temperature sensor terminal block (TB1).
3. Insert and secure the white (ground) wire to pin J3 of
the space temperature sensor TB1.
4. Insert and secure the black (–) wire to pin J5 of the
space temperature sensor TB1.
5. Connect the other end of the communication bus cable
to the remainder of the CCN communication bus at the
COMM1 plug located on the fuse and control circuit
breaker bracket in the unit main control box.
Monitor and/or Control from Non-CCN Build-
ing Management System —
Carrier offers three addi-
tional means for accessing the unit control system for purposes
of remotely monitoring and/or controlling the unit from a non-
Carrier (not a CCN) building management system. These are:
• DataPort: Monitor (read-only) using ASCII data stream
conversion
• DataLink: Monitor and control (read/write) using ASCII
data stream conversion
• BAClink: Monitor and control (read/write) using BAC-
net protocol
DATALINK AND DATAPORT — DataPort and DataLink
are interface devices that permit a non-Carrier device to read
and change (DataLink only) values in CCN system elements
(such as units with PIC controls), either to individual units or to
multiple units connected to a CCN communication bus. Types
of off-network (non-CCN) devices that can be connected to a
DataPort or DataLink device are: personal computers (running
a user application or terminal emulation program), dumb termi-
nals, and HVAC control systems (proprietary building manage-
ment or energy management systems).
The DataPort and DataLink devices request data from the
PIC control in the unit, translate the data into ASCII characters,
and output the characters off-network. When a DataLink de-
vice is used, data from the off-network device is sent to the
PIC control or CCN communication bus through the DataLink
device.
The DataPort and DataLink devices allow the user to read
values in the unit control’s Display, Occupancy and Set Point
tables and CCN variables in up to 15 system elements.
DataLink device allows the user to modify the values of certain
data points in the Occupancy and Set Point tables and CCN
variables.
IMPORTANT: A shorted CCN bus cable will prevent
some routines from running and may prevent unit
from starting. If abnormal conditions occur, unplug the
connector. If conditions return to normal, check CCN
connector, and run new cable if necessary. A short in
one section of the bus can cause problems with all sys-
tem elements on the bus.
IMPORTANT: The cable selected for the RJ-11 con-
nector wiring MUST be identical to the CCN commu-
nication bus wire used for the entire network. Refer to
Table 41 for acceptable wiring.
LEGEND
PIC — Product Integrated Control
Fig. 34 — CCN Communication Wiring
