Chapter 2 General wiring information
8 CNT-SVX09B-EN
Communication-link wiring and
addressing
The Tracer MP503 I/O module communicates with the BAS and with
other devices through a LonTalk communication link.
IMPORTANT
For important instructions on network wiring, refer to the Tracer Sum-
mit Hardware and Software Installation guide (BMTX-SVN01A-EN).
Wiring for the communication link must meet the following require-
ments:
• All wiring must comply with the National Electrical Code and local
codes.
• 22 AWG Level 4 unshielded communications wire recommended for
most Comm5 installations.
• Termination resistors are required for wiring LonTalk devices com-
municating on a network. For important instructions on using termi-
nation resistors for LonTalk applications, refer to the Tracer Summit
Hardware and Software Installation guide (BMTX-SVN01A-EN).
Each Tracer MP503 I/O module has a unique 12-character alphanumeric
device address for communicating on a BAS network. This address,
referred to as a Neuron ID, is assigned in the factory before the product is
shipped. Each device can be identified by viewing its unique Neuron ID,
which is on a printed label attached to the circuit board of the device.
Additional adhesive-backed, peel-off Neuron ID labels are tethered to the
device for placing on mechanical prints or unit location worksheets. The
Neuron ID will appear when communication is established with a service
tool (such as the Rover service tool) or a BAS. An example Neuron ID is
00-01-64-1C-2B-00.
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