Extron Electronics MAV Plus Series - Manual (Page 37)

Installation, cont’d
CrossPoint 450 Plus and MAV Plus Switchers • Installation 2-14
5 Connections for balanced and unbalanced audio outputs — These 3.5 mm,
5-pole captive screw connectors output the selected unamplified, line level
audio. Connect audio devices, such as an audio amplifier or powered
speakers. See figure 2-18 to properly wire an output connector. Use the
supplied tie-wrap to strap the audio cable to the extended tail of the
connector.
Unbalanced Stereo Output Balanced Stereo Output
LR
Do not tin the wires!
Ring
Sleeve(s)
Tip
Tip
Ring
Sleeve(s)
Tip
Tip
NO GROUND HERE.
NO GROUND HERE.
Figure 2-18 — Captive screw connector wiring for audio output
CAUTION Connect the sleeve to ground (Gnd). Connecting the sleeve to a negative
(-) terminal will damage the audio output circuits.
CAUTION The length of the exposed (stripped) portion of the copper wires is
important. The ideal length is 3/16" (5 mm). Longer bare wires can
short together. Shorter bare wires are not as secure in the direct insertion
connectors and could be pulled out.
The volume level for each output can be individually set via the front panel or
Ethernet or serial port control. See chapter 3, “Operation”, chapter 4,
“Programmer’s Guide”, chapter 5, “Matrix Software”, and chapter 6, “HTML
Operation” for details.
RCA connector model (MAV Plus 128 AV RCA)
6 Connections for unbalanced audio inputs — Each input has a pair, left and
right, of female RCA connectors for unbalanced stereo audio input.
7 Connections for unbalanced audio outputs — Each output has a pair, left
and right, of female RCA connectors for unbalanced stereo audio output.
RS-232/RS-422
8 RS-232/RS-422 connector — Connect a host device, such as a computer, touch
panel control, or RS-232 capable PDA to the switcher via this 9-pin D
connector for serial RS-232/RS-422 control (figure 2-19).
RS-232 Function Pin RS-422 Function
1
2
3
4
5
6
7
8
9 —
TX
RX
—
Gnd
—
—
—
—
Not used
Transmit data
Receive data
Not used
Signal ground
Not used
Not used
Not used
Not used —
TX–
RX–
—
Gnd
—
RX+
TX+
—
Not used
Transmit data (–)
Receive data (–)
Not used
Signal ground
Not used
Receive data (+)
Transmit data (+)
Not used
RS-422 Function
All Models
2412 through 3232
Matrix Sizes
84 through 1616
Matrix Sizes
5
1
9
6
RS232/RS422
REMO
TE
TX+
TX–
RX+
RX–
Gnd
—
—
—
—
Transmit data (+)
Transmit data (–)
Receive data (+)
Receive data (–)
Signal Ground
Not used
Not used
Not used
Not used
Figure 2-19 — RS-232/RS-422 connector
See chapter 4, “Programmer’s Guide”, for definitions of the SIS commands
(serial commands to control the switcher via this connector) and chapter 5,
“Matrix Software” for details on how to install and use the control software.