30 C2900M-B (1/03)
HARDWARE INSTALLATION
Refer to
Appendix A – Connecting PelcoNet NET104A To Different Components
for diagrams that
show various connections.
CONNECTING VIDEO SOURCES OR DISPLAYS
Up to four video sources can be connected to the NET104A.
1. To connect cameras, plug a standard coaxial cable into a BNC connector (start with video 1) on
the rear of the NET104A and the other end into the camera. You can use any video source (for
example, a VCR) with a composite PAL or NTSC output. The inputs accept color or black and
white sources and automatically detect whether they are PAL or NTSC. The video inputs have
an internal termination of 75 ohms.
2. Set the DIP switches to position 75 OHM ON (down) to terminate the inputs when the video
signal is not connected to additional video equipment through a T-connection.
CONNECTING AUDIO EQUIPMENT
The NET104A provides an audio channel via the audio in and out jacks.
1. Connect the microphone to the AUDIO IN jack.
2. Connect the loudspeaker to the AUDIO OUT jack. (This is not required if you are using the
speakers on your PC.)
The audio signals are transmitted bi-directionally and simultaneously with the video signals. This
allows control of a loud speaker or door intercom system, for example, at the monitored location.