Teltone m-392 Guida Utente

For the following explanation, assume that three LSS units are being cascaded as
indicated in the illustration.

If you assign No Priority (default) to all LSS units, equal access is given to the Central
Office line for all ports.

If you assign Total Priority to the first LSS unit and the LSS connected to Port 1, devices
connected to ports on the first and second LSS will be disconnected if Port 1 goes
off-hook.

Caution: If one of the LSS ports is in use when you go off-hook in Total Priority mode,
the LSS will be unable to obtain network dial tone until the call disconnects or until the
times out (usually within 10-15 seconds).

If you assign No Priority to any of the LSS units, calls will never be interrupted. This
setting is not advised for applications requiring a telephone in emergency situations.

Cascaded LSS units can be programmed either locally or remotely. Follow the
instructions in the programming chapter to program the units locally.

Remote Programming would be accessed using the following example. A modem dial
string would be:

ATDT 1 201 733 9200,,,,33,,#1

This would route a caller through port 3 of the primary LSS and access remote
programming for the LSS connected to port 3 in cascade. Follow the instructions in the
programming chapter to program settings for the features you will use.

Daisy-chaining is linking a series of LSS units together through Port 1. In this type of
operation, the LSS units and the Polling Controller work together to route calls.

If you are daisy-chaining the M-394-A/B, the four-port model, up to five LSS units can be
daisy-chained; giving a total of 16 ports.

Daisy-chained units operate just as they would normally, with one exception: Port 1 of the
first LSS is

always used to connect to the next LSS through its CO Line port. The last

LSS in the chain can use Port 1 to connect to an emergency telephone. Other ports can
be used to connect any other device that would normally be used with a LSS (e.g.,
modems, fax machines, etc.).

All features are available in D operation with a Polling Controller; however, the function of
priority modes (Emergency, Total, and No Priority) is slightly different.

For information on changing the proprietary defaults for transfer codes in

daisy-chain applications, refer to the tables in Chapter 4.

For the following explanation, assume that three LSS units are being daisy-chained as
indicated in Figure 8.

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