Connect the Device
Make all necessary connections to the CP4-R as shown below.
NOTE:
Ensure that the included SD card is seated fully in the MEMORY
slot prior to powering on the CP4-R.
Observe the following when connecting the CP4-R:
l
Use Crestron power supplies for Crestron equipment.
l
The CP4-R 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 CP4-R is grounded properly.
l
Apply power after all connections have been made.
COM 1 Connections
Port
RS-232
RS-422
1
RS-485
G
GND
GND
GND
2
TX
TX (from CP4-R)
TX- (from CP4-R)
TX-/RX-
RX
RX (to CP4-R)
RX+ (to CP4-R)
Not used
RTS
RTS (from CP4-R)
TX+ (from CP4-R)
TX+/RX+
CTS
CTS (to CP4-R)
RX- (to CP4-R)
Not used
1. RS-422 transmit and receive are balanced signals that require two lines plus a ground
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.
2. A ground terminal connection is recommended but not required.
2
CP4-R
Quick Start
4-Series Control Processor for Crestron Home™ OS
