Crestron CP4N, CP4 User Manual
CP4/CP4N
4-Series Control System
The Crestron® CP4 and CP4N are secure, high-performance control
processors with a powerful 4-Series control engine. The CP4 and
CP4Nare designed to integrate and automate technology within any
modern networked home, commercial building, or government facility. An
isolated control subnet port provides a Gigabit Ethernet LANdedicated to
Crestron devices (CP4NOnly).
NOTE:TheCP4 and CP4N are functionally similar. For simplicity within
this guide, the term "control system"is used to refer to both the CP4
and CP4Nunless otherwise noted.
In the Box
1 CP4 or CP4N, 4-Series Control System
Additional Items
2 Bracket, Rack Ear (2032122)
4 Foot, Rubber (2002389)
2 Connector, 3-Pin (2003575)
1 Connector, 4-Pin (2003576)
1 Connector, 5-Pin (2003577)
4 Connector, 8-Pin (2003580)
1 Connector, 9-Pin (2003581)
1 Power Cord, 5 ft, 10 in. (1.78 m) (2042043)
1 Power Pack, 24 VDC, 100–240 VAC(2045873)
QuickStart
Install the Device
The device may be mounted into a rack or placed onto a flat surface.
Rack Mounting
The control systemoccupies 1Uof rack space.
1. Use a #1 Phillips screwdriver to remove the six required screws from
the control system assembly (shown in the illustration below).
2. Attach the two included rack ears with the removed screws.
3. Mount the control system into the rack with four mounting screws
(not included).
Surface Placement
1. Attach the four adhesive rubber feet near the corners on the underside
of the control system.
2. Place onto a flat surface or stack with other equipment.
1
CP4/CP4N
4-Series Control System
Connect the Device
Make all necessary connections to the control system as shown below.
QuickStart
Observe the following when connecting the control system:
l Use Crestron power supplies for Crestron equipment.
l The control system may be powered with the included 24 VDC power
supply or via Cresnet® network power with the NET port.
l Connect the chassis ground lug to a known earth ground circuit (such
as building steel) to ensure that the control system is grounded
properly.
l Apply power after all connections have been made.
COM1 Connections
Port RS-232 RS-422
G
GND GND GND
TX
TX(from CP4/CP4N) TX- (from CP4/CP4N) TX-/RX-
RX
RX(to CP4/CP4N) RX+(to CP4/CP4N) Not used
RTS
CTS
1. RS-422 transmit and receive are balanced signals that require two lines plus a ground
2. A ground terminal connection is recommended but not required.
RTS(from CP4/CP4N) TX+(from CP4/CP4N) TX+/RX+
CTS(to CP4/CP4N) RX- (to CP4/CP4N) Not used
in each direction. RXD+ and TXD+ should idle high (going low at start of data
transmission). RXD- and TXD- should idle low (going high at start of data
transmission). If necessary, RXD+/RXD- and TXD+/TXD- may be swapped to maintain
correct signal levels.
1
RS-485
2
2
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