Black Box MD3310-R2, User Manual

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CHAPTER 6: Multipoint Operation
6.2 Network ID
The Network ID allows the user to set a network of units up with an ID instead of
using addressing. This may be useful when a large number of slaves are in use. In a
large system, if a master or repeater needs to be replaced or repeaters need to be
added to add slaves, it would not be necessary to change the address in all of the
units affected. All that would need to be done is to set the Network ID of the units
that are being added to the system.
For example, say you have a system that involves slave units that are mobile and use
a series of repeaters to maintain contact with the master. If more repeaters need to
be added to extend the system, using the Network ID would let you add the
repeaters without having to add the new repeaters’ addresses in the slave call
books. As soon as you set the new repeaters to the system’s Network ID, they would
be ready to install.
When setting up the Network ID, note that the default Network ID is 255. This
setting disables the Network ID (the modems will use their “Call Book” menu for
addressing). To enable the Network ID, change the setting to a number between 0
and 254. When this is done, the units will use the Network ID and no longer use
the “Call Book” addressing system. Note that the Network ID must be the same in
all of the units in a given system. Any unit that does not have the same Network ID
as the other units in a system will not communicate in that system. If a master (only
one per system), repeater, or slave needs to be added (or replaced) in the system,
set the Network ID to be the same as the other units in the network (make sure the
other configuration parameters match) and it is ready to work in the system.