Port Features; Power - Honeywell HD-JC-010 User Manual

Honeywell
Figure 2-2 Keyboard Interface
① RJ45 network port

Port Features

RS232 can directly connect with DVR. The distance should be within 10m.
One RS232 port could only connect with one DVR. You must use 485-> 232 converters to
connect more DVRs.
RS-485 transmission distance is 1200 m（9600bps），max 3000 m.
In level-link mode, one RS-485 port can connect with as many as 16 keyboards.
You can connect RJ45 with DVR and realize front device multiplex control via the network
keyboard.

Power

The keyboard uses +12V DC, you can use +12V adapter included in the accessories
package. See Figure 2-3.
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② RS485 port ③ RS232 port ④ Power socket