User manual

Installation

Siemens Building Technologies

Fire Safety & Security Products 01.2009

NOTE

Please note the technical specification for the VGA output in Section 3: Technical data.

7.5 Connecting to the RS232 port

Fig. 7 RS232 connector

An RS232 port is provided to connect a remote control keyboard.

7.6 Connecting alarms

Fig. 8 Alarm Input/Output connectors

NOTE

To make connections on the Alarm Connector Strip, press and hold the button and insert the wire in

the hole below the button. After releasing the button, tug gently on the wire to make certain it is

connected. To disconnect a wire, press and hold the button above the wire and pull out the wire.

AI 1 to 4 (Alarm-In) You can use external devices to signal the DVR to react to events.

Mechanical or electrical switches can be wired to the AI (Alarm-In) and G

(Ground) connectors. The threshold voltage is 4.3 V and should be stable at

least 0.5 seconds to be detected. See Section 8.7.1: Alarm-In screen.

G (

Ground) Connect the ground side of the alarm input and/or alarm output to the G

connector.

NOTE

All the connectors marked G are common.

NC/NO (Relay Alarm-

Output)

The DVR can activate external devices such as buzzers or lights. Connect

the device to the C (Common) and NC (Normally Closed) or C and NO

(Normally Open) connectors. NC/NO is a relay output which sinks

2A@125VAC and 1A@30VDC. See Section 8.9.2: Alarm-Out screen.

RI (Alarm Reset In) An external signal to the Alarm Reset In can be used to reset both the Alarm

Out signal and the DVR’s internal buzzer. Mechanical or electrical switches

can be wired to the ARI (Alarm Reset In) and G (Ground) connectors. The

threshold voltage is below 0.3V and should be stable at least 0.5 seconds to

be detected. Connect the wires to the ARI (Alarm Reset In) and G (Ground)

connectors.