DVR-3901 Installation and Operation Manual
13
Chapter 2: Installation and Removal
Making Connections
Either RS-422 or PC serial cables can be used for connections on the
DVR-3901.
Connecting Using a RS-422 Cable
The DVR-3901 is equipped with a 10 ft (3.05 m) long RS-422 cable.
This cable has male connectors on both ends. Plug one end to the DB-9
connector on the back module and fasten the screws. The jumper J6
should be positioned according to
“Setting Jumpers” on page 16
. Figure
2.6 shows the RS-422 pinouts.
Figure 2-1.
RS-422 Cable Pinouts
Note
The DVR-3901 can also be
controlled by Ethernet cables
over using UDP. For more
information,
see
“UDP
Control” on page 49
.
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
RXA
TXB
RXB
TXA
RXB
TXA
TXB
RXA
Frame GND
Receive A
Transmit B
GND
Spare
GND
Receive B
Frame GND
Controlling device
(RS-422 controller) DB9-M
Front view
Controlled device
(DVR-3901) DB9-M
Front view
Summary of Contents for NEO DVR-3901
Page 3: ...Edition E August 2005 DVR 3901 Digital Video Recorder Installation and Operation Manual ...
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Page 42: ...26 DVR 3901 Installation and Operation Manual Chapter 2 Installation and Removal ...
Page 106: ...90 DVR 3901 Installation and Operation Manual Appendix B Servicing Instructions ...
Page 110: ...94 DVR 3901 Installation and Operation Manual Index ...
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