Installation guide

PVN SerVision
HVG400 Installation Guide
Connecting Devices to the HVG400
17
Plug into RS232/485 serial port
connector on HVG
RS232 connector
Figure 13: RS232/485 adapter
Note: If you connect a relay board to the unit, you cannot connect any RS232 PTZ controllers or an ADAM
module to the unit. For additional information about connecting PTZ controllers to the unit, see Connecting
PTZ Controllers, page 9. For information about connecting an ADAM module to the unit, see Connecting
Sensors Using an ADAM Module, page 11.
Connecting Microphones
Up to two microphones can be connected to the unit, one active and one passive. When one or two microphones are
connected, you can hear and record sound along with video images. The sound from a microphone can be
associated with any or all of the cameras. (For additional information, please refer to the Embedded Video Gateway
System Guide.)
Microphones can be connected to one or both of the Audio In connectors (Ain1 and/or Ain2). Passive
microphones, which require external amplification, must be connected to Ain1. Active (self-amplifying)
microphones must be connected to Ain2. Microphones with an output voltage of 1 Vrms or 1.41 Peak are
supported.
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To connect a microphone:
1. Install the microphone in the desired location.
2. Plug the microphone connector into the desired Audio In connector (Ain1 or Ain2).
Connecting a Speaker or Headphones
The HVG400 unit contains a built-in, 1-watt, internal speaker, which is located on the right side of the unit. You can
also connect an external speaker or headphones to the unit. The speakers (and headphones) allow you to hear audio
that is transmitted from one of the client applications. In addition, if you are viewing recorded video on a CCTV
monitor, these speakers can broadcast the audio associated with the video. The external speaker or headphones can
be used in addition to the internal speaker or instead of it. (For additional information, please refer to the Embedded
Video Gateway System Guide.)