Axis Q7404 Guia De Instalacion página 16

AXIS Q7404 Video Encoder
Function Pin
number
1
GND
2
DC Power
RS485/RS422 connector
Two 2-pin terminal blocks for RS485/RS422 serial interface used to control auxiliary equipment
such as pan-tilt devices.
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 1
RS485/RS422 RX/TX B 2
RS485/RS422 TX A
RS485/RS422 TX B
Description
Ground
Power input 8-20V DC, max 16.1W
Pin Notes
(RX) For full duplex RS485/RS422
(RX/TX) For half duplex RS485
3
(TX) For full duplex RS485/RS422
4
16