MLC 64 RS VC D Specifications
Control — host ports
Serial control port  | 1 bidirectional   | 
Baud rate and protocol  | 9600 baud, 8 data bits, 1 stop bit, no parity  | 
Serial control pin configuration  | Pin 1 = Tx, pin 2 = Rx, pin 3 = GND  | 
USB control port  | 1 front panel female mini USB B  | 
USB standards  | USB 2.0, low speed  | 
IR learning frequencies  | 30 kHz to 60 kHz  | 
IR learning distance  | 4" (10 cm) to 14" (36 cm) from the receiver  | 
Program control  | Extron configuration program for Windows®  | 
  | Extron Simple Instruction Set (SIS™)  | 
Control — serial port
Display control port | (1) 3.5 mm captive screw connector, 2 pole for unidirectional   | 
  | (±5 V)  | 
Baud rate and protocol   | 9600 (default), 19200, 38400, 57600, 115,200 baud; 8 (default) or 7 data bits;  | 
  | 1 stop bit; no parity (default), or even or odd parity  | 
Control — IR/serial port
IR control port  | (1) 3.5 mm captive screw connector, 2 pole for IR/Serial* (transmit only)  | 
  | TTL level (0 to 5 V) modulated infrared control from 30 kHz up to 60 kHz, or  | 
  | ±5 V   | 
  | *IR/serial ports are configurable via software; serial communication is the  | 
  | default.  | 
Baud rate and protocol  | 9600 (default), 19200, 38400, 57600, 115,200 baud; 8 (default) or 7 data bits;  | 
  | 1 stop bit; no parity (default), or even or odd parity  | 
Control — relay
Number/type  | 2 momentary or latching (configurable via software)  | |
Connector  | (1)  | 3.5 mm captive screw connector, 3 pole  | 
Contact rating  | 24  | V, 1 A  | 
Control — digital input monitoring port
Number/type  | 1 digital input (configurable)  | 
Connector  | (1) 3.5 mm captive screw connector, 2 pole  | 
Digital inputs  | 
  | 
Input voltage range  | |
Input impedance  | 12k ohms  | 
Programmable pullup  | 2k ohms to +5 VDC  | 
Threshold low to high  | >1.5 VDC  | 
Threshold high to low  | <1.0 VDC  | 
Control — peripheral audio equipment
Volume control  | 0 to 10 VDC variable voltage, positive logic (the higher the voltage, the higher  | 
  | the volume)  | 
Mute control  | Momentary push switch with latching contact closure during mute; LED mute  | 
  | indication  | 
Pin configuration  | Pin 1 = +10 VDC, pin 2 = volume/mute (variable voltage), pin 3 = GND  | 
Reference voltage  | 10 VDC  | 
MLC 60 Series MediaLink Controllers • Reference Information  | 66  |