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Page 22 - Basic Rate Interfaces
Basic Rate Interfaces
BRI Cassette Set up
Page 22 - Inserting Device Cassettes
38DHB0002UKDJ – Issue 3 (12/00)
The INDeX supports Basic Rate Interface (BRI) connections through BRI cassettes
and the BRI Combo cassette (BRIC). Each BRI connection provides two B-channels
(bearer channels) for calls plus a D-channel (data channel) for call control.
Each BRI Cassette connection can act as either an S-interface (INDeX to PSTN
connection) or a T-interface (INDeX to INDeX or ISDN terminal connection).
When inserted, the INDeX defaults the cassette's first circuit to a T-interface (INDeX
to PSTN connection) and any remaining circuits to S-interfaces (INDeX to INDeX or
ISDN terminal connection).
Each BRI B-channel (two per connection) is allocated an appropriate trunk or user
directory number at the same time (see page 19).
If a circuit is changed from S to T or T to S, the INDeX automatically deallocates the
existing pair of trunk or user directory numbers and allocates directory numbers.
You must manually remove the numbers from the Line Group if necessary (see
page 89).
To configure BRI cassette circuits :
Changing these settings also requires corresponding changes to the
1. From the Administration menu, select Linecard Information.
2. Select Linecard and enter the cassette's address.
3. Select Description and enter a name for the cassette.
4. Select Set up.
5. To change a circuits settings, enter the circuit number, the circuit type and circuit
type suffix (if required). The options are:
– Circuit Types :
– T = T-Interface with connect detect (i.e. power from the line). Use this setting
for INDeX to PSTN connections.
– X = As per T-Interface with no connect detect (i.e. no power from the line).
– S = S-Interface for INDeX to INDeX or ISDN terminal device connection.
– Circuit Type Suffix :
– P = Point to point connections (p-p). Use this setting for S-interface
connections.
–
M = Point to multi-point connection (p-m).
Inserting Device Cassettes
WARNING :
physical wiring.
Programming Manual
INDeX 9.1
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