Specifications

X723-300151 3-2 Issue 2
Mode 1 (Default)
The incoming NFW from the relevant line is written
to the relevant patchfield with the Remote Alarm bit
set to a 1. The outgoing NFW is read from the
patchfield and the Remote Alarm bit will be set to a 0
.
This allows the use of patchfield 995/D
Mode 2
This is the same as mode 1 except that the Remote
Alarm bit is not masked and all bits may be used by
the patchfield to give TS0 transparency.
Mode 3
Line 1 - TS0 outgoing will be read from port X TS0.
TS0 incoming will be written port X TS0
Line 2 - will be set as mode 2
Mode 4
Line 1 - will be set as mode 2
Line 2 - TS0 outgoing will be read from port X TS0 .
TS0 incoming will be written to port X TS0
Mode 5
Line 1 - TS0 outgoing will be read from port X TS0.
TS0 incoming will be written to port X TS0.
Line 2 - TS0 outgoing will be read from port X TS1.
TS0 incoming will be written to port X TS1
Mode 6
Line 1 - TS0 outgoing will be read from port X TS0.
TS0 incoming will be written port X TS0
Line 2 - will be set as mode 2
Mode 7
Line 1 - will be set as mode 2
Line 2 - TS0 outgoing will be read from port X TS0 .
TS0 incoming will be written to port X TS0
Mode 8
Line 1 - TS0 outgoing will be read from port X TS0.
TS0 incoming will be written to port X TS0.
Line 2 - TS0 outgoing will be read from port X TS1.
TS0 incoming will be written to port X TS1
X = P1, P2, P3 or P4
Notes:
1. In modes 3 to 8, the outgoing TS0 Frame bit 2 is masked to a 1.
2. In modes 3 to 8, the outgoing Remote Alarm bit consists of port X TS0
Remote Alarm bit logically 'OR'ed with the Remote Alarm bit derived
from the state of the incoming line signal.
3. In modes 3 to 8, the incoming TS0 NFW read from the line signal and
written to the port timeslot will not be masked or added to.
4. In modes 6 to 8, bit 1 (International signalling bit) is forced to a 1 on
the outgoing line signal for use with the DT585.