Axis Q7424-R Mk II, Installation Manual

Page: 19 / 120

AXIS Q7424-R Mk II Video Encoder
4-pin terminal block
for:
• Audio
input
• Audio
output
Function Pin Notes
Microphone/Line in
1
Microphone or line in (mono). 3 V microphone bias is available.
GND
2
Ground
Line out 3
Line level audio output (mono). Can be connected to a public
address (PA) system or an active speaker with a built-in amplifier.
GND
4
Ground
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 Pin Notes
RS485/RS422 RX/TX
A
1
RS485/RS422 RX/TX
B
2
(RX) For full duplex RS485/RS422
(RX/TX) For half duplex RS485
RS485/RS422 TX A
3
RS485/RS422 TX B
4
(TX) For full duplex RS485/RS422
19