Lorex Technology L224 Series User Manual download pdf (Page 54)

DC12V +

GND

8 7 6 5 4 3 2 1

15 14 13 12 11 10 9

16 17

PIN Connection Application

Solder Side

of DSUB

15PIN

APPENDIX #2

–

PIN CONFIGURATION

PIN FUNCTION DESCRIPTION

1 RS232-TX

DVR can be controlled remotely by the keyboard of PC by using RS-232 serial

communication signals.

2 RS232-RX

DVR can be controlled remotely by the keyboard of PC by using RS-232 serial

communication signals.

3~6 ALARM INPUT

To connect the wire from ALARM INPUT ( PIN 3 -- 6 ) to GND ( PIN 9 )

connector, DVR will start recording and the buzzer will be on.

When “MENU -> CAMERA -> ALARM” is set to “Low” : When the alarm input

signal is “ Low ”, the unit starts to record and buzzer.

When “MENU -> CAMERA -> ALARM” is set to “High” : When the alarm input

signal is “ High ”, the unit starts to record and buzzer.

EXTERNAL

ALARM NC

Under the normal operation, COM connects with NC and disconnects from NO.

But when any alarm is triggered, COM disconnects with NC and connects with

NO.

Attention: The voltage restriction is under AV/DC 30V.

EXTERNAL

ALARM NO.

Under the normal operation, COM disconnects with NO. But when any alarm is

triggered, COM connects with NO.

Attention: The voltage restriction is under AV/DC 30V.

9 GND Signal GND.

10 RS485-B

DVR can be controlled remotely by the keyboard of PC by using RS-485 serial

communication signals.

11 RS485-A

DVR can be controlled remotely by the keyboard of PC by using RS-485 serial

communication signals.

12~13 PIN OFF

14 ALARM RESET

Connecting the wire from ALARM RESET (PIN 14) to GND (PIN 9) connector

will disable alarms. An external signal to ALARM RESET (PIN 14) can be used

to reset both ALARM OUTPUT signal and DVR’s internal buzzer. When any

alarm has been triggered, the signal becomes “Low”, and all alarm activities will

be stopped. Under the normal operation, the signal remains “High”.

EXTERNAL

ALARM COM

Under the normal operation, COM disconnects with NO. But when any alarm is

triggered, COM connects with NO.

Attention: The voltage restriction is under AV/DC 30V.

16~17 GND Earth GND

When the magnetic contact is opened, the

alarm will be triggered and the recording is

on. At the same time, COM connects with

NO and the siren with strobe starts wailing

and flashing.

NOTE: Please go to MENU -> ADVANCE ->

DETECTION -> DETECTION SETUP, and

set ALARM to LOW on the local machine.

DC12V +

GND

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Lorex Technology L224 Series User Manual Page 54

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