Specifications

X723-300151 5-29 Issue 2
5.4.10 Cross-Connection configuration
The stream numbers on the cross-connect switch directly relate to the
PCM lines of Dual LIU cards as follows:
S1 Port 1 line 1 S3 Port 2 line 1
S2 Port 1 line 2 S4 Port 2 line 2 See section 1 Figure 1-1
Timeslots may be cross-connected between any stream, between any port
or between any stream and port without restriction e.g. P3 timeslot 8 to
S3 timeslot 27. The cross connection may be Simplex (unidirectional) or
Duplex (bi-directional). In Duplex it is only necessary to configure one
direction and the return path will be automatically assigned. The first
timeslot to be assigned may be selected to be TS0 to TS31 for all ports and
streams. If no first timeslot is selected, TS1 will be presumed.
Note that cross-connection of a timeslot to TS0 or TS16 of a Dual LIU (S1
to S4) can be made with no error message. Normally, the TS0 timeslot
data on the backplane will be overwritten by the framing in the PCM
stream. PCM TS0 NFW bits can be accessed via Dual LIU patchfields for
management purposes or routed via the DLIU TS0 routing options If the
line is in CAS mode the TS16 backplane timeslot data will also be
overwritten with the multiframing in the PCM stream.
Modify Format
The modification of the timeslot cross-connection is available with the
following format:
Example 1
(CCEMCC) Simplex | Duplex | Fixedata assign | Multipoint >D
output stream, start timeslot, end timeslot >S1
(S1; TS 1; Fixedata ;) from, TS, = ; >S2,1
(S1; TS 2; Fixedata ;) from, TS, = ; >S2,2
(S1; TS 3; Fixedata ;) from, TS, = ; >S2,3
In the above example the operator has only entered the output stream for
modification. The system then responds with the request for a source
stream and timeslot assignment starting at timeslot 1 of the output
stream selected i.e. S1. If the operator wanted to start at a particular
timeslot, including TS0, this could have been entered. The prompt for an
assignment would then start at the timeslot supplied as follows: