Johnson Controls CCXL01 Engineering Manual page 21

(1) Parts Names and Functions
The following diagram shows VRF Central Touchscreen Controller with front and rear cover removed.
Each name and function are listed. Regarding how to connect each terminal, refer to "2.6.3 Electrical
Wiring" on page 2-15. Regarding how to set each switch, refer to "2.6.4 Switch Setting Procedures" on
page 2-17.
SW2
LCD power
Switch
DSW3
Used to change starting
mode.
UP/RIGHT/LEFT/
SELECT/DOWN
button
Used in setting mode
Do NOT use them in
normal mode.
H-LINK Terminals
Used to connect to air
conditioners.
External input terminals
Used to connect with
external devices.
TB4 will not be in
use on VRF Central
Touchscreen
Controller.
External output
Fuse for H-LINK transmission circuit
terminals
Fuse for protecting H-LINK
Used to connect with
transmission circuit
external devices.
Mark
ERROR
RS-485
LAN
H-LINK
POWER
TC-19001
7-segment LED
Used for setting and status
indication
Status Indicator (LED)
Lights upon system error occurrence (red)
RS-485 fl ashes upon communication via RS-485.
Lights when communication link is established /
Flashes while communicating (orange)
Flashes when communicating via H-LINK (communication line)(yellow)
Lights while internal power is ON (green).
CH11, CH12
RS-485 Terminals
Currently not in use.
Do not use this terminal.
DSW1
Used to set terminal
resistances and fuses.
Specifi cation
SYSTEM SPECIFICATION
ERROR (Red)
Lights upon error occurrence.
RS-485 communication (Yellow)
Currently not in use.
LAN communication (Orange)
Flashes upon communicating via
LAN.
H-LINK communication (Yellow)
Flashes upon communicating via
H-LINK.
POWER (Green)
Lights while power is provided
to VRF Central Touchscreen
Controller.
SW1
Power switch for embedded
adapter
TB2, TB3, TB4, TB5
LAN Connecter
Used to connect
to VRF Central
Touchscreen
Controller adapter
(CCXLA01).
Power fuse
For protecting
power circuit.
TB1
Power terminals
Used to connect to
power line.
DSW2
Used to set wet
contact for external
output.
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