Nortel Networks 400 4.0 用户手册
112
Chapter 8 Installing a media bay module (MBM)
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Figure 66 Space requirements for MBMs, on a per-DS30 configuration
illustrates the space requirements for special MBMs.
Trunks (lines)
Stations (extensions)
1 DD DSM 32+
per DS30
per DS30
2 DD DSM 16+
per DS30
per DS30
4 DD ASM 8s or
GASM8s per
DS30
GASM8s per
DS30
1 DSM 16
per DS30
per DS30
1 DSM 32
per 2 DS30s
per 2 DS30s
1 DS30 bus/
offset set to 0
offset set to 0
2 DS30 buses/
offset set to 0
offset set to 0
1 DS30 bus
1 DS30 bus
1 DS30 bus
1 DS30 bus/offset
set to 0, 1, or 2
set to 0, 1, or 2
GATM8 max
of 2 offsets
per DS30
of 2 offsets
per DS30
1 DS30 bus/offset
set to 0, 1, 2, or 3
set to 0, 1, 2, or 3
1 DS30 bus/offset
set to 0, 1, or 2
set to 0, 1, or 2
CTM8s
max of 2
offsets per
DS30
max of 2
offsets per
DS30
4 GATM4s
per DS30
per DS30
4 CTMs
per DS30
per DS30
1 DS30 bus/offset
set to 0, 1, 2, or 3
set to 0, 1, 2, or 3
1 DS30 bus/offset
set to 0, 1, or 2
set to 0, 1, or 2
3 BRIs
per DS30
per DS30
1 DS30 bus/
offset set to 0
offset set to 0
1 DTM per
DS30
DS30
Single-density modules Double-density modules