Rs-485 Communications; Figure 11: Rs-232 Configuration - Honeywell NETAXS NX4L1 Installation Manual

NetAXS™ NX4L1 Installation
Installation

Figure 11: RS-232 Configuration

Terminal
One NetAXS panel per COM port. Two COM ports possible.

RS-485 Communications

The NetAXS™ panel can reside on an existing RS-485 drop line hosted by either a
NetAXS™ panel configured as a Gateway, or N-485-PCI-2, PCI-3, or N-485-HUB-2
(see Figure
Multidrop communication network of up to 4,000 feet (1200 m) in length. Only one
host converter device per dropline is supported.
On a Multidrop Line, the Gateway panel and the PCI unit can have either
Note:
end-point or interior positions. See
DIP switch position 6 on the NetAXS™ panel selects whether the panel is a Gateway
or Multidrop panel. The switch in the OFF position configures the panel as a
Multidrop panel; ON configures a Gateway. The panel must be power cycled for a
new switch setting to be recognized. DIP switch positions 1-5 are used to select the
panel's address on the network. Refer to
Connectors J36 and J37 are provided for supplying biasing and end-of-line
termination for the RS-485 network. The board ships with all jumpers open. For a
Multidrop RS-485 Line, you must close both J36 and J37 (terminated and biased) at
the two end-point panels. At all other panels, leave J36 and J37 open. Both jumpers on
a given panel must set the same. Note that biasing and termination on both ends are
present. Use the jumpers on both ends of the RS-485 network.
If an RS-485 network has a NetAXS™ Gateway panel, no N1000-II, N1000-III,
Note:
or N1000-IV are allowed on the same network. If they are added to a network with a
NetAXS™ Gateway panel, they will not be able to communicate with the host
computer.
22 www.honeywell.com
12, Figure 13, and Figure
Figure 20
NetAXS
COM1
Panel
CBL50
NetAXS
COM2
Panel
24). The interface allows the wiring of a
on page 33 and
Table 5 for DIP switch setting information.
Reader 1
Reader 4
Reader 1
Reader 4
Figure 21 on page 34.