External Preference

Table of Contents

Overview
Activate the Server
Event Message Format

Overview

Events are received from the remote host only when the connection to the host is alive in principle. However, CMS can be received events via SNMP protocol (SNMP Preference) or simple message protocol using TCP from other external applications.

External Preference

Figure 3.9. External Preference


Activate the Server

If you check Enable external event server, it activates the external event server listening to events. TCP port number can be adjusted by using Listen Port.

Event Message Format

External applications shole connect to the CMS using TCP protocol. After connection is established, it can send text messages to transfer event information. The format of event message is following:

[event] [host address] [device] [messages][\r or \n]

For examples,

1 210.95.145.77 16 Camera signal was recovered.
1 192.168.0.110 1 Warning!!

The event and device numbers starts from natural number 1. You may refer to Warning Message Preference for event numbers. The message is ignored, whose host address is not listed in Host Manager.