Axis Q74 Guia De Instalacion página 21

4-pin terminal block
for:
• Audio
input
• Audio
output
Function
Microphone/Line in
GND
Line out
GND
RS485/RS422 Connector
Two terminal blocks for RS485/RS422 serial interface used to control auxiliary equipment such as
pan-tilt devices.
Two 2-pin terminal blocks for RS485/RS422 serial
interface. The serial port can be configured to support:
• Two-wire RS485 half duplex
• Four-wire RS485 full duplex
• Two-wire RS422 simplex
• Four-wire RS422 full duplex point to point
communication
Function
RS485/RS422 RX/TX
A
RS485/RS422 RX/TX
B
RS485/RS422 TX A
RS485/RS422 TX B
AXIS Q7424-R Mk II Video Encoder
Pin Notes
1
Microphone or line in (mono). 3 V microphone bias is available.
2
Ground
3
Line level audio output (mono). Can be connected to a public
address (PA) system or an active speaker with a built-in amplifier.
4
Ground
Pin Notes
1
(RX) For full duplex RS485/RS422
(RX/TX) For half duplex RS485
2
3
(TX) For full duplex RS485/RS422
4
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EN