Crestron electronic Crestron MC2E - Manual (Page 11)

Crestron MC2E 2-Series Compact Control System
Connectors, Controls & Indicators (Continued)
# CONNECTORS 1 ,
CONTROLS & INDICATORS
DESCRIPTION
11 COMPUTER
COMPUTER
Pin 1
Pin 9
(1) DB9 female, RS-232 computer console port.
Connector is used when programming with a PC. The port is
modem compatible (modem and PC cables not included).
Supports baud rate of up to 115 kB. Use with standard DB9 straight
through cable. Pins 1, 4, 6 and 9 are not connected.
PIN # ABBREVIATION DESCRIPTION
2 TXD Transmit Data
3 RXD Receive Data
5 SG Signal Ground
7 CTS Clear To Send
8 RTS Request To Send
12 LAN
GREEN
LED
YELLOW
LED
PIN 8 PIN 1
(1) 8-wire RJ-45 with 2 LED indicators;
10/100BaseT Ethernet port;
Green LED indicates link status
Yellow LED indicates Ethernet activity.
TYPE PIN SIGNALS
1 TD+
2 TD-
3 RD+
4 Connected to pin 5
5 Connected to pin 4
6 RD-
7 Connected to pin 8
8-Position
RJ-45
8 Connected to pin 7
13 NET 11, 12 Four-position terminal block connector for data and power.
Connects to Cresnet control network.
Pin 1 (24) Power
Pin 2 (Y) Data
Pin 3 (Z) Data
Pin 4 (G) Ground
Expandable via C2N-NPA8 Network Poll Accelerator 10 .
14 24 VDC 11, 12, 13 (1) 2.1 mm barrel DC power jack, 24 Volt DC power input;
(PW-2410RU power supply included);
Passes through to NET port to power Cresnet devices.
24VDC
1.0A
1. Interface connectors for IR-SERIAL OUT, IR IN, I/O, RELAY OUT and NET 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. 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.
4. A port can be used for either IR or RS-232 communications but not both.
5. Digital outputs are TTL values and may not work with devices requiring a “dry” contact closure (e.g. low voltage motor controllers).
6. Ports can be used for either input or output but not both.
7. 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.
8. Data Set Ready (DSR) and Data Terminal Ready (DTR) are not supported.
Operations Guide – DOC. 6142A 2-Series Compact Control System: MC2E • 7