Distribution Of The Pcm Highway - Siemens HiPath 3000 Series Service Documentation

inst_h3.fm
Installing HiPath 3000
Installing HiPath 3800
4.1.5.7

Distribution of the PCM Highway

HiPath 3800 provides PCM highway trunk groups with 2 x 4 PCM highways for each peripheral
board slot. There are 32 time-division multiplex channels available for each PCM highway.
Blockages occur if these are busy. The system cannot execute any more call requests.
To guarantee that the system operates without blocking, make sure when performing configu-
ration that the boards on a PCM segment do not require more than the number of time-division
multiplex channels available. The following figures show the PCM highways for both system
cabinets of the HiPath 3800.
Basic cabinet: PCM highways
Bundle A's PCM highway
with 2 x 4 PCM highways
PCM highway trunk group F
with 2 x 4 PCM highways
Figure 4-26 HiPath 3800 - PCM Highways in the Basic Cabinet
The basic cabinet provides two PCM highway bundles with 2 x 4 PCM highways each. There
are 32 time-division multiplex channels available for each PCM highway.
The PCM highway bundles in the basic cabinet are used by peripheral boards according to the
following rules:
Single-cabinet system (basic cabinet only)
●
With the exception of boards DIUT2, DIUN2, DIU2U (for U.S. only), and STMI2, the periph-
eral boards only use the PCM highways of trunk group A:
– PCM segment for board slots 1 – 5 = 128 time-division multiplex channels (four PCM
highways)
4-46
HDLC
Nur für den internen Gebrauch
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation