Specifications

8
(1) SW1 and SW2 set the baud rate of the
communications port on the controller:
BAUD RATE
SW1
SW2
9600
Off
Off
19.2K
Off
On
38.4K
On
Off
76.8K
On
On
(2) SW3 and SW4 enable different
supported protocols on the controller;
additional hardware is needed for LonTalk®.
PROTOCOLS
SW3
SW4
BACnet® MS/TP
Off
Off
N2
On
Off
Modbus
Off
On
Option Card
On
On
Typical DIP switch for LonTalk® (Option
Card) is shown in figure 11.
Jumpers and settings
The controllers come equipped with a series
of jumpers which allow different types of
inputs to be terminated in a particular point.
Most inputs (IN) allow thermistor or dry
contact input devices to be terminated in
them, however, IN1 and IN2 can be used as
analog or digital input points and their
available options are as follows:
• 0-5 VDC Analog Input
• Thermistor
• Dry Contact
FHP configures most switches in-house;
however, there may be cases where a
particular sensor is required by the customer
after it leaves the factory. It’s therefore
important for the installer to understand
jumper settings and their relationship with
unit configuration and operation. Figure 10
shows the location of the jumpers on the
controller.
Figure 8 - LonTalk® DIP Settings
EIA-485
BACnet
over ARC156
Figure 9 - Jumper setting for LonTalk® only.
ON
1
2
3
4
IMPORTANT:
The LonTalk® card
must be installed.
Jumpers set up will be
cover under the jumper
section.