NDR-EA2104 / NDR-EA2208 / NDR-EA2416 User’s manual ver. 1.0
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7.2 Controlling the DVR via the KBD30 keyboard:
NV-KBD30 keyboard receive the commands with 9600 bps speed in the following standard: 8 data
bits / 1 stop bit / no parity check. Default control protocol is N-Control (assigned in keyboard’s
settings to number 4).
Note:
Both the cameras, DVRs and keyboards in one system should have the same control
protocol and transmission speed set in their menus (check the user’s manual of the camera
for more details).
Note:
Detailed information on NV-KBD30 and NV-KBD70 configuration are contained in their
respective manuals.
Tables presented on subsequent pages describe controlling the DVR via NV-KBD30 and
NV-KBD70 keyboards.
OPERATING THE DVR VIA SYSTEM KEYBOARDS
RS-485 (+)
RS-485 (
-
)
Up to 9 DVRs connected as shown
above
TRX +
TRX -
T
R
X
+
T
R
X
-
T
R
X
+
T
R
X
-
NV-KBD30
RS485 (TX-)
styk 4
RS485(TX+)
styk 5
RS-485
R
S
-4
8
5
R
S
-4
8
5
