Crestron 3 Series Manual de inicio rápido - Página 4

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CP3 and CP3N

3-Series Control System® Automated Processors

COM 1 Connections

Port

RS-232

GND

TX (from CP3/CP3N)

RX (to CP3/CP3N)

RTS

RTS (from CP3/CP3N)

CTS

CTS (to CP3/CP3N)

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 the 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.

RS-422

RS-485

GND

TX- (from CP3/CP3N)

TX-/RX-

RX+ (to CP3/CP3N)

Not used

RTS+ (from CP3/CP3N)

TX+/RX+

CTS- (to CP3/CP3N)

Not used

Connect the Control Subnet

(CP3N Only)

The CP3N has a dedicated Control Subnet used for communication

between the control system and Crestron Ethernet devices without

interference from other traffic on the network.

NOTE:

Do not connect the CONTROL SUBNET port to the LAN. The

CONTROL SUBNET port must only be connected to Crestron

Ethernet devices.

For more information on using the Control Subnet, refer to the 3-Series

Control System Reference Guide (Doc. 7150) at

www.crestron.com/manuals.

Quick Start