System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
Function groups of the SDH expansion
Page 3-40 Proprietary Information Aastra
HPX, LPX
HPX VC4, LPX VC3 and LPX VC12 are switching matrices for different
transmission rates. In principle, their behaviour is identical and a distinction
is possible only by their function group numbers.
The following table shows the application functions of these switching
matrices.
HPX, LPX application functions
SET2 Synchronous Equipment Timing
The SETS has eight configurable timing sources TS (1) to TS (8), i.e. up to
eight reference timing sources can be applied to SETS. The reference
timing sources T1, T2 and T3 can be connected to timing sources TS(2) to
TS (8).
The following applies to the SDH expansion:
• The internal oscillator is permanently connected to TS(1) on a
hardware basis.
• TS (2) to TS (5) are used for clock T1.
• TS (6) is used for PDH clock T2.
• TS (7) is used for clock T3.
Table 3.J: HPX, LPX application functions
APPLICATION FUNCTIONS SPONT. EVENT REQU./RESP. COMMAND
Alarm information X X -
Configuration X X X
Operating status X X X
Reference list - X -
Compliance information - X -
SET2
T3
T1
FG/FE
STM-N
Port
T2
FG/FE
Plesiochroner
Port
T4
Reference pointer = (FG, FE)
Reference pointer
Reference pointer
T4
TS(x)
TS(y)
TS(z)
TS(w)
T0
T0
SETcentral