30732396-001 Honeywell Power module Brand new

MS/TP MAC Address

The MS/TP MAC address for each device must be set to a 

unique value in the range of 0-127 on an MS/TP network 

segment. DIP switches on the Spyder BACnet controller 

are used to set the controller's MAC address.

Device Instance Number

The Device Instance Number must be unique across the 

entire BACnet system network because it is used to 

uniquely identify the BACnet devices. It may be used to 

conveniently identify the BACnet device from other 

devices during installation. The Spyder BACnet 

Controllers Device Instance Number is automatically set 

when it is added to a WEBStation-AX project. The Device 

Instance Number can be changed by the user, which may 

be necessary when integrating with a third party or when 

attempting to replace an existing controller and it is 

desired to maintain the existing Device Instance Number.

NOTE: For complete instructions on how to set the 

MS/TP MAC address or set the Device Instance 

Number refer to the Installation Instructions, 

form 62-0310.

Termination Resistors

Matched terminating resistors are required at each end of 

a segment bus wired across (+) and (-). Use matched 

precision resistors rated 1/4W ±1% / 80 - 130 Ohms. 

Ideally, the value of the terminating resistors should 

match the rated characteristic impedance of the installed 

cable. For example, if the installed MS/TP cable has a a 

listed characteristic impedance of 120 Ohm, install 120 

Ohm matched precision resistors.

NOTE: The controller does not provide any network biasing.