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NDVR User Manual
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CHAPTER 9. KEYBOARD CONNECTION
The advantage of using NDR series is that any combination of NDRs, RS-485 keyboards,
analog PTZs, and IP PTZs can be controlled within one system via RJ-45 network wire.
Chapter 9-1. Connection between a NDR and a RS-485 Keyboard
To operator a NDR with a keyboard, please directly connect PIH-931D keyboard to the
NDR’s keyboard input using a RJ-45 cable. The NDR provides DC 12V for PIH-931D
keyboard. There is no need for connecting power adapter.
A NDR & A Keyboard Connection Diagram
Chapter 9-2. Connections of multiple LAN NDRs and a RS-485 Keyboard
To connect PIH-931D a keyboard with multiple NDRs via LAN, connect the RJ-45 cable from
PIH-931D keyboard to the NDR’s RJ-45 keyboard input. The NDRs are connected within a
LAN. There are up to 255 NDRs can be connected and addressed.