Welltech SPCI2S Intel NetStructure SS7 Boards - Manual (Page 44)

SS7 Programmer’s Manual for SPCI2, SPCI4 and CPM8 Issue 2 Page 44
link n_flags - Per link flags
Bit 0 is set to 1 to force the use of the emergency proving period during link
alignment or 0 to use the appropriate proving period according to Q.703. This
bit should usually be set to 0.
Bit 1 is set to 1 to cause a signalling link test (in accordance with ITU-T Q.707)
to be carried out before a link is put into service or 0 if a test is not required.
This bit should usually be set to 1
Bit 2 is set to 1 to cause a signalling link test (in accordance with ITU-T Q.707)
to be carried out every 30 seconds. Note that this bit is ignored unless bit 1 is
also set to 1. This bit should usually be set to 1.
Bit 8 is used to select the MTP2 error correction mode. It is set to 1 to select
PCR (Preventive Cyclic Retransmission) operation or zero for the Basic Method
of Error Correction.
Bit 11 is set to 1 to select 56kbit/s operation for the link or 0 for 64kbit/s
operation.
NOTE: When using a serial port, 56kbit/s operation is only supported when the
clock is applied externally.
Bit 13 is only used when the link has been configured to run over a serial port
(ie. bit 14 is set). If set to 1 an external clock will be used (Receive clock). If set
to zero an internal clock (Transmit clock) will be used. If the link has not been
configured to run over a serial port, this bit must be set to 0.
Bit 14 is set to 1 to use a serial port rather than a PCM timeslot for this link. In
this mode the stream and timeslot parameters for this link will be ignored (and
should be set to zero). If this bit is set to zero, the link will use the specified
stream and timeslot. The serial port used by the signalling processors for each
link is fixed, according to the following table:
link n Serial Port
0 B
1 A
2 Cannot be used for a serial port
3 Cannot be used for a serial port
Bit 15 is set to 1 to disable the link or 0 to enable the link.
All other bits are reserved for future use and should be set to zero.