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AXIS Q7401 Video Encoder
Power connector
2-pin terminal block for DC power input. Use a Safety Extra Low Voltage
(SELV) compliant limited power source (LPS) with either a rated output
power limited to ≤100 W or a rated output current limited to ≤5 A.
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
Pin
Notes
(RX) For full duplex RS485/RS422
(RX/TX) For half duplex RS485
3
(TX) For full duplex RS485/RS422
4
16
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