Oki BV1250, Installation Manual

Page: 123 / 344

Oki BV1250 Installation Guide FXO WORKSHEETS
Revision 1.0 Page 113 of 334
In the Maintenance Console Software the permissible settings are
displayed in the Delay Timing list box. In the OFDD.VHO file these
parameters are represented by the values 0 to 15 as shown in the
following table.
0>0ms
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1>512ms 2>1024ms 3>1536ms 4>2048ms
5>2560ms 6>3072ms 7>3584ms 8>4096ms 9>4608ms
10>5120ms 11>5632ms 12>6144ms 13>6656ms 14>7168ms
15>7680
The default setting is 7 (e.g. 3584 ms.)
In the sample, the Delay Timing parameter for all ports is recorded as
the default value, 3584 ms.
Guard Timing (CO_TRMDLD)
Use the Guard Timing field to record the Guard Timing required by
the PSTN to which the BV1250-FXO unit or Hunt Group is
connected.
Guard Timing restricts the use of a trunk for a specified period of time
following the completion of a call. This is required because the PSTN
must reset its line access in a specified time and if another caller
attempts to use this trunk prior to the completion of the reset period, a
cross-connect condition may occur. This can result in a situation in
which the next calling party is connected with one or both of the
parties from the previous call. This constraint does not apply when a
different trunk is accessed, even from the same unit.
In the Maintenance Console Software the permissible settings are
displayed in the Guard Timing list box. In the OFDD.VHO file these
parameters are represented by the values 0 to 15 as shown in the
following table.
0>0ms 1>512ms 2>1024ms 3>1536ms 4>2048ms
5>2560ms 6>3072ms 7>3584ms 8>4096ms 9>4608ms
10>5120ms 11>5632ms 12>6144ms 13>6656ms 14>7168ms
15>7680
The default setting is 5 (e.g. 2560 ms.)
In the sample, the Guard Timing parameter for all ports is recorded as
the default value, 2560 ms.
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Using this value is equivalent to configuring the IVG to PBX connection method as “Immediate”.