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9
Connect Line 485
When the DVR (WITHOUT HDD) receives a camera control command, it transmits that command up
the coaxial cable to the PTZ device. RS485 is a single-
direction protocol; the PTZ device can’t return
any data to the unit. To enable the operation, connect the PTZ device to the RS485 (A, B) input on
the DVR (WITHOUT HDD). Since RS485 is disabled by default for each camera, you must enable the
PTZ settings first. This series DVR (WITHOUT HDD) support multiple protocols such as Pelco-D,
Pelco-P.
To connect PTZ devices to the DVR (WITHOUT HDD):
•
Connect RS485 A, B on the DVR (WITHOUT HDD) rear panel.
•
Connect the other end of the cable to the proper pins in the connector on the camera.
•
Please follow the instructions to configure a camera to enable each PTZ device on the DVR
(WITHOUT HDD)
8 external alarm 485 Schematic
16 external alarm 485 Schematic
2.6.
Other Interface
There are other interfaces on the DVR (WITHOUT HDD), such as USB Ports.