The Quad Basic Rate Module
80-14004000-01
1–5
1.4.2 Product Variant - S2 Poles 5-8
Different operational modes or product “variants” can be selected via the
8 way DIL switch on the pcb, allowing several different countries and
variants to use the same software.
DIL switch S1 poles 5, 6, 7 and 8 define the variant in binary notation.
Pole 5 = L.S.B., pole 8 = M.S.B., (L.S.B.=Least Significant Bit,
M.S.B.=Most Significant Bit).
Variant
Country
DIL Switch Settings
Variant 0(F)
Euro ISDN. UK and most
European countries:
poles 5,6,7,8 all
OFF.
Variant 2
Euro ISDN*. France and
Sweden:
pole 6 ON,
poles 5,7,8 OFF.
Variant 3
USA AT&T:
poles 5,6 ON,
poles 7,8 OFF.
‘F’ is the factory setting, and must not be changed otherwise malfunction
may occur. All poles are ‘read’ by the software on power up.
*NOTE: Variant 2 does not have single octet information elements
present in the call setup message.
Most other countries with Euro-ISDN are likely to require Variant 0.
Please contact your Technical Support for further information.
NOTE: Variants 1-14 must not be set in the UK, otherwise the
Approval of this product will be invalidated. Access to the
interior to change these settings must only be made by a
competent engineer.
1.4.3 4 Way DIL Switch S3
Poles 1-4
ON (F)
Not used
