Crestron CP2E Specifications download pdf (Page 11)

Crestron CP2 & CP2E 2-Series Compact Control System

Connectors, Controls & Indicators (Continued)

CONNECTORS

CONTROLS & INDICATORS

DESCRIPTION

COM (A – C)

8, 9, 10

COM C

COM A

(3) DB9 male, bidirectional RS-232/422/485 ports. Up to 115.2k

baud, hardware and software handshaking support. All ports support

C2N-NPA8 Network Poll Accelerator

PIN DIRECTION DESCRIPTION

To CP2 or CP2E

(RXD-) RS-422 Receive Data (Idles low)

To CP2 or CP2E

(RXD) RS-232 Received Data

From CP2 or CP2E

(TXD) RS-232 Transmitted Data

From CP2 or CP2E

(TXD+) RS-422 Transmit Data (Idles high)

RS-232 and RS-422 Signal Common

To CP2 or CP2E

(RXD+) RS-422 Receive Data (Idles high)

From CP2 or CP2E

(RTS) RS-232 Request to Send

To CP2 or CP2E

(CTS) RS-232 Clear to Send

From CP2 or CP2E

(TXD-) RS-422 Transmit Data (Idles low)

* RS-422 transmit and receive are balanced signals requiring 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.

24 VDC

(1) 2 mm barrel DC power jack, 24 Volt DC power input;

(PW-2420RU power supply sold separately);

Passes through to NET port to power Cresnet devices.

1. Interface connectors for NET, Infrared-Serial, I/O and Relay Output ports are provided with the unit.

2. This LED was labeled “ERR” on units manufactured prior to 2005. It is functionally the same; only the labeling has changed.

3. CP2E only.

4. The orientation of this connector is “upside down” compared to other Crestron network devices (e.g. CNX-BIPAD8, CNX-RMCLV). To avoid

damage to the CP2 or CP2E unit, be sure the mating Cresnet cable connector is properly aligned before attempting to insert it.

5. Use care in wiring installations to avoid applying 24 VDC to Cresnet wiring from an AC power pack as well as from a system device that contains

its own power supply. Although this condition should not cause any damage, Crestron does not recommend it. In those network configurations that

require more power than can be supplied by the primary power supply alone, disconnect the +24 VDC Cresnet wire from those devices that will be

6. Transmission levels on the infrared–serial output connectors are in the 0 to +5 VDC range, which may not be compatible with all RS-232 devices.

7. Digital outputs are TTL values and may not work with devices requiring a “dry” contact closure (e.g. low voltage motor controllers).

8. The pinout of each 9-pin port is non-standard; it contains RS-422 pins in addition to RS-232. This may result in a conflict with some equipment

and therefore all nine pins should not be used. Only the required pins for each communication type should be connected. For RS-232 and –422,

pins 2, 3, 5, 7 and 8 are wired straight through.

9. Data Set Ready (DSR) and Data Terminal Ready (DTR) are not supported.

10. To support RS-485, tie pin 1 (RXD-) to pin 9 (TXD-)

and pin 4 (TXD+) to pin 6 (RXD+) in the cable.

COM (DB9) CONNECTOR RS-485 BUS

(Refer to table at right.)

Tie Pins 1 & 9 -

Tie Pins 4 & 6 +

Pin 5 G

11. The Cresnet Poll Accelerator effectively increases the network speed, fan-out and device addresses by a factor of 8 for each Poll Accelerator added

to the system.

Operations Guide – DOC. 5980A 2-Series Compact Control System: CP2 & CP2E • 7

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 27 28

Comments to this Manuals

No comments

Crestron CP2E Specifications Page 11

Comments to this Manuals

Related products and manuals for Processors Crestron CP2E