Operating instructions

2.2 Back Panel

1. Video Input Connectors (CH1 - CH4)

Connect system cameras to these BNC connectors.

2. Call Monitor Output Connector (CALL OUT)

Connect CCTV monitor to this BNC connector for call monitor display.

3. Main Monitor Output Connectors (MAIN OUT)

Connect CCTV monitor to the BNC connector for main monitor display.

4. Audio Input Connector (AUDIO IN)

This RCA connector accept line-in audio signals supplied from external devices such as

microphone amplifiers.

5. Audio Output Connector (AUDIO OUT)

This RCA connector supply line-out audio signals to external devices such as speakers.

Recorded audio will be supplied from AUDIO OUT during playback.

6. Main Monitor Output VGA Connector (MAIN OUT VGA)

Connect VGA monitor to the D-SUB 15-pin female connector for main monitor display.

8. RS-485 Connector

Connect this connector to RS-485 compatible PTZ camera(s). Please refer to the manuals come

with the RS-485 compatible devices for the correct settings.

9. Alarm Output Connectors (ALARM OUT 1-2)

Connect these connectors to Normally Closed (NC) alarm output (C-1) and/or Normally Open

(NO) alarm output (C-2).

10. Alarm Input Connectors (ALARM IN 1-4)

Four external devices such as sensors or door switches can be connected. Each alarm input

should have 2 or 3 wires. Those with 2 wires will either be Normally Open (NO) or Normally

Closed (NC). Those with 3 wires will allow the user to choose. Connect one of the two wires to

the port indicated as “G” for ground. Connect the other wire to either port 1, 2, 3 or 4. Direction

does not matter. When the alarm input has been connected, please configure the software system