I.R.I.S. 808 Digital Video Recorder - Manual (Page 26)

Connect the alarm output #1 to NC type of alarm signal, alarm output #2 to NO
type of alarm signals.
Ethernet
Connect the Ethernet connector to a standard twisted-pair Ethernet cable for
remote access via LAN or internet. Wireless router is needed for wireless
communications. Please make sure to setup the related configurations as
described in Section 6.10 Network Setup .
 SD card
If the user wants to use SD card to retrieve important recorded images and/or
audio, please connect it to the SD slot.
 USB 2.0 disk drives, DVD+RW, card reader, etc.
If the user wants to use USB2.0 peripheral device to retrieve important recorded
images and/or audio, please connect it to the USB port connector.
 I/R remote controller
The user may use I/R remote controller to control the digital video/audio recorder.
 PTZ Cameras
Connect the RS-232 connector or the RS-485 connector to PTZ camera(s) via the
appropriate cable. The system supports a variety of different PTZ cameras,
including Pelco D protocol Dome, SamSung SCC-641P, Kalatel Cyber Dome,
Bosch AutoDome, etc. But different PTZ cameras can coexist in a system only if
they support the same protocol. Please make sure to set the PTZ ID of the camera
(s), and setup the camera (
Section 6.1 ), and RS-232 or RS-422/485 ( Section 6.9 )
accordingly.
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