Jumper Settings; Downstream I/O; Table 6 Nx4In Dip Switch And Jumper Settings - Honeywell NetAXS NX4L1 Installation Manual

4.9 Jumper Settings

The NX4L1 panel control board includes jumpers 36 and 37, which set end-of-line
termination and biasing for the Multidrop RS-485 Line.
The board ships with all jumpers set to OFF. For a Multidrop RS-485 Line, you must
set both J36 and J37 to CLOSED (terminated and biased) at the two end-point panels.
At all other panels, leave J36 and J37 at OPEN. Note that both jumpers on a given
panel must either be OPEN or CLOSED.

4.10 Downstream I/O

UL has not evaluated the compatibility of downstream I/O devices with the
Note:
NetAXS panel.
In some applications, the number of system inputs or outputs exceeds the number that
is standard on the NetAXS panel. The solution is to add a combination of NX4IN and
NX4OUT modules external to the NetAXS enclosure on a dedicated RS-485
Downstream Input/Output (I/O) bus. A maximum of two NX4IN and a maximum of
four NX4OUT for a total of six NX4IN/OUT modules can be added to the
downstream bus.
An NX4IN module has 32 supervised, four-state inputs that are limited to 2,200 ohms
resistance. The NX4OUT has two supervised inputs and 16 SPDT relay outputs. Each
input is limited to 2,200 ohms resistance. Refer to the individual installation manuals
for I/O wiring details.
The downstream I/O bus is wired into the NetAXS TB10 terminal block. The
downstream bus has a fixed baud rate and communicates to the input and output
modules using a polling technique.
Each NX4 input and output module needs to have a unique address for proper
communication. Each one also has some configuration jumpers that need to be
positioned correctly.
The following table lists the DIP switch and jumper settings for the input and output
modules.

Table 6 NX4IN DIP Switch and Jumper Settings

Module
NX4IN
NetAXS™ NX4L1 Access Control Unit Installation Guide, Document 7-901099V3
Setting
DIP switches
NetAXS™ NX4L1 Installation Guide
Value
Address (switches 1–6) - 1 or 2
Baud rate (switches 7 and 8) -
7 = OFF, 8 = ON
OP Mode (switches 9 and 10) -
9 = OFF, 10 = OFF
Installation
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