Axis 221 0221-004 Manuale Utente

This section describes the following:

• The I/O Terminal connector
• Power connections
• The RS-232 D-Sub connector

The 10-pin I/O terminal connector provides the interface to a solid state relay output, two 

digital photo-coupled inputs, RS-485, GND and auxiliary power.

The terminal connector is used in applications for e.g. motion detection, event triggering, 

time lapse recording, alarm notification via e-mail, image storage to FTP locations, etc.

• Input - Used for connecting external alarm devices and triggering images for 

specific alarm-based events. The input is typically connected to a motion detector 

or any other external security device, and images can be uploaded whenever the 

detector is activated. Maximum 18V DC is allowed on the input.

• Output - This can drive a maximum load of 50V DC at 100mA directly or heavier 

loads by connecting additional relay circuitry. If the output is used with an exter-

nal relay, a diode must be connected in parallel with the load for protection 

against any voltage transients.

Connecting AC to the inputs/outputs will damage the unit.

 

10-pin I/O Terminal connector

1 2 3 4 5 6 7 8 9 10

connector 

Power

block

connector 

Power adapter

RS-232 connector

(including RS-485)

AC   AC

GND DC+

Connect DC power (7-24V) on pins 1 and 2.

Connect AC power (10-24V) on pins 2 and 3.