Specifications

Crestron CP3 & CP3N 3-Series Control Systems
Connectors, Controls & Indicators (Continued)
#
CONNECTORS*,
CONTROLS &
INDICATORS
DESCRIPTION
9 COM1
(1) 5-pin 3.5 mm detachable terminal block
Bidirectional RS-232/422/485 port
Up to 115.2k baud;
hardware and software handshaking support
RS-232 RS-422 RS-485
GND GND GND*
TX TX- TX-/RX-
RX RX+ Not Used
RTS TX+ TX+/RX+
CTS RX- Not Used
* A ground terminal connection is recommended
but not required. Ground potential difference
must be under ±4 V.
10 COM 2 & COM 3
(2) 3-pin 3.5 mm detachable terminal blocks;
Bidirectional RS-232 ports;
Up to 115.2k baud;
software handshaking support
11
MEMORY (1) MMC compatible card slot;
Accepts Multimedia Memory Cards (MMC)
up to 32 GB for memory expansion
12
USB (1) USB Type A female;
USB 2.0 port for storage devices
13
LAN (1) 8-pin RJ-45 with two LED indicators;
10BASE-T/100BASE-TX Ethernet port (CP3)
(10/100/1000BASE-T Ethernet port (CP3N);
Left LED indicates link status;
Amber: Link – 1 Gbps (CP3N Only)
Green: Link – 100 Mbps
Off: No link or Link – 10 Mbps
Right LED indicates Ethernet activity
Flashing: Activity – Flash rate depends
on amount of activity
Off: No Activity
Connects to the customer’s LAN
CP3 Pin Assignments
PIN SIGNAL PIN SIGNAL
1 TX + 5 N/C
2 TX - 6 RX -
3 RX + 7 N/C
4 N/C 8 N/C
CP3N Pin Assignments
PIN SIGNAL PIN SIGNAL
1 BI_DA + 5 BI_DC -
2 BI_DA- - 6 BI_DB -
3 BI_DB + 7 BI_DD +
4 BI_DC + 8 BI_DD -
(Continued on following page)
Operations Guid
e – DOC. 7316B 3-Series Control Systems: CP3 & CP3N  9