Unit Connectors; Rear Connectors; Pin Assignments - Axis Q7920 Installation Manual

Unit connectors

Rear Connectors

Network connector : Standard RJ45 connector, designed for 10/100/1000 Mbps.
Network connector : Standard SFP connector, designed for 1000 Mbps.
RS-485 connector: Usually used for connecting Pan Tilt Zoom devices.
Power In/Out Connectors: 12 V DC 100 mA out. This connector could be used to supply power to
external units.
I/O Terminal Connectors: Provides the physical interface for up to 12 I/Os.
Chassis ID
Chassis ID 0–15: Sets a chassis ID. Used in multichassis installations.
Chassis ID A-P: Currently not used.

Pin assignments

Pin Assignments for RS485 Connector - AXIS Q7900 and AXIS Q7920
Chassis
Pin Function
1
Channel 1, RS485A
2
Channel 1, RS485B
3
Channel 2, RS485A
4
Channel 2, RS485B
5
Channel 3, RS485A
6
Channel 3, RS485B
7
Channel 4, RS485A
8
Channel 4, RS485B
9
Channel 5, RS485A
10
Channel 5, RS485B
11
Channel 6, RS485A
AXIS Q7920 Chassis
Description
A half-duplex RS485 interface for
controlling auxiliary equipment such as
PTZ devices.
12