Memory,Storage and CPU capacity Page69 of 544
Option11C and 11C Mini TechnicalReference Guide
Note 27
Protected memory requirements for ISDN PRA are as follows:
Per system with DCHIs: P_DCH_TBL = 16 words
Per DCHI: P_DCH_BLOCK = 32 words
Note 28
The equation for calculating the protected memory required for trunk routes
is:
B + (X x 92)
where:
B = 256
X = number of routes actually defined
RD = 116 = size(P_ROUTE_DATA)
For each ISA route configured for any IFC, add 10 words for the
ISA_SRVC_BLOCK
If Protected call reference table:
If DCHI is in “PRA” mode 1 + M x (# of PRI or 2Mb PRI loops controlled by
DCHI)
where:
M = 24 for PRI, and 31 for 2Mb PRI
If DCHI is in “ISL” mode 1 + (maximum number of ISL trunks defined)
If DCHI is in “SHARED” mode 1 + (M x # of PRI/2Mb PRI loops controlled by DCHI)
+ (maximum # of ISL trunks defined)
where:
M + 24 for PRI and 31 for 2Mb PRI