10
2.1.2 Functions and Instructions of CMU
Figure 1
1) Power Switch: Use this button to switch on or to switch off the main unit
2) Power Indicator light
3) Volume: Master volume control the level on output (figure 1 – ref. 16,17,18 )
4) Monitoring earphone interface (Φ3.5 mm)
5) UBS interface: Be connected to USB drive for MP3 recording
6) Display: 4.3 inch TFT touch control display for basic system setting and recording control
7) RS-232 camera control interface
8) Camera data control indicator
9) RS422/485 camera control interface
10) Matrix control interface: When cooperating with seamless video matrix and dome camera, auto
video tracking can be realized.
11) RS232C interface to support central control system
12) LAN: Ethernet interface for communication between the CMU and the PC
13) ALARM: Emergency signal interface, for connection to public emergency system
14) Delegates: 4 path microphones output interface (Ethernet) to connect system microphones.
15) Extend: Dual connection Ethernet interface to the extension main unit
16) Output: Balanced signal output (male XLR3). Connect mixer or amplifier to this output
17) Recording output (RCA). To record a conference, connect a recorder to this output
18) Line: Unbalanced line level output (RCA)
19) AUX IN: Line level input (RCA). Connect this input to an audio source such as a CD player, etc.
20) AC POWER SOCKET: Power 230VAC 50/60Hz
2.1.3 Description of Control Interface of CMU
①
Central control connector RS232C
RS-232C Male
RS-232C Female
1- NC 6- NC 1- NC 6- NC
2- TXD 7- NC 2- RXD 7- NC
3- RXD 8- NC 3- TXD 8- NC
4- NC 9- NC 4- NC 9- NC
5- GND 5- GND
Figure 2
②
Camera control connector RS232 and RS-422
