Pin Assignments - Axis Q7920 Guia De Instalacion

AXIS Q7920 Chassis

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
12
Channel 6, RS485B
This table is for the AXIS Q7436 blade. If using another blade in AXIS Q7920 see the Installation
Guide for the specific product.
Pin assignments for the I/O Connector of the AXIS Q7900 and AXIS Q7920
Chassis
Pin Function
1
Channel 1, Configurable
I/O 1
2
Channel 2, Configurable
I/O 1
3
Channel 3, Configurable
I/O 1
4
Channel 4, Configurable
I/O 1
Description
A half-duplex RS485 interface for
controlling auxiliary equipment such as
PTZ devices.
Description
Digital input - Connect to GND
to activate, or leave floating (or
unconnected) to deactivate.
Digital output - Uses an open
drain NFET transistor with the
source connected to GND. If
used with an external relay,
a diode must be connected
in parallel with the load, for
protection against voltage
transients.
13
Min input = – 40 V DC
Max input = + 40 V DC
Max load = 100mA
Max voltage = + 40 V DC
(to the transistor)