User Manual

Document name:
OMU Commands and Attributes 1.0.0 v1.0
Version:
1.0
5 OMU COMMANDS
5.1.1 Overview
NODEPNP command is used to automatically identify new nodes in the network.
5.1.2 Usage
The OMU communicates with slave repeaters over the optical fibers, and all
communication is master/slave based where the OMU is the master polling all slave
nodes/FiberOptic repeaters. When communicating with the repeaters, the serial number
of the repeater (or repeater controller) is used as an address. This means that the node
master must have knowledge of the serial numbers of all repeaters in the network.
When adding new nodes in an existing repeater system (or when configuring a new
system), nodes are configured using the NODE ADD command, which requires
knowledge of the serial number for the installed repeater, and what opto module the fiber
is connected to.
The NODEPNP command is used to find nodes/repeaters connected to the different fiber
optic modules.
Older generation of Axell Wireless repeaters (H30 or H12 controllers) do not support
NODEPNP, why address needs to be determined at repeater site.
Format:
NODEPNP [--maxwait <MilliSeconds>] [--reset] [--noack] [--verbose]
<Rack>:<Slot>
where the following applies:
--maxwait - this optional parameter defines number of milliseconds that the node master
should wait on reply from the slave nodes (slave nodes wait a random number of
milliseconds before replying to a request). If not supplied, 2000 milliseconds will be
used.
--reset - A node will only reply to PnP requests if node has not been communicated with
before. If supplying this flag, all nodes will have the PnP functionality reset, meaning
that all nodes will be answering on the request.
--noack – when a node is found, the PnP routine will send a message to this node to
ensure that it will not answer to the next PnP request. By supplying this optional
parameter, no message will be sent, meaning that replies will be made to consecutive
requests too.
--verbose – by supplying this parameter, progress on the Plug and Play activities will be
printed out. This is normally used for advanced trouble shooting.
<Rack> is the rack containing the Opto Module performing plug and play for.
<Slot> is the slot number within <Rack> to perform plug and play for.
Example 1:
NODEPNP 1:3
Reply:
Found node 5644 in rack 1, slot 3.
This example showed a successful retrieving of node data.
Command
NODE ADD 5644 1:3 1
should be used to add node to the system.
Example 2:
NODEPNP 1:3
Reply:
No nodes found in rack 1, slot 3. No nodes available, or nodes answered
at the same time. You might want to try again.
This either means that all nodes already are added, or that other nodes on this slot are of
old type not supporting plug and play functionality.
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