Nortel Networks BCM200/400 - Manual (Page 122)

122 Chapter 8 Installing a media bay module (MBM)
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Table 30 shows possible DS30 and offset configurations for each type of station MBM, and the
corresponding switch settings. Note that DIP switch 1 indicates the density mode for DSM 16+
and DSM 32+ (SDD = single density, DIP switch 1:on; FDD = Double Density, DIP switch 1:off).
Table 30 Possible station MBM DIP switch settings
DS30
bus #
Station MBM positioning
DIP switch settings
(Single density)
DIP switch settings
(Double density)
Offsets
DSM16+
Offsets 0, 1
SDDFDD
DSM32+
Offsets 0, 1
SDDFDD
ASM 8/
GASM8
Offsets 0,
1, 2, 3
1 2 3
(offset)
4 5 6
(DS30 #)
1 2 3
(offset)
4 5 6
(DS30 #)
2
0 0 0 0 0*** on on on on on on off on on on on on 0
1 on on off on on on off on off on on on 1
1 2 on off on on on on off off on on on on 2
3 on off off on on on off off off on on on 3
3
0 0 0 0 0 on on on on on off off on on on on off 0
1 on on off on on off off on off on on off 1
1 2 on off on on on off off off on on on off 2
3 on off off on on off off off off on on off 3
4
0 0 0 0 0 on on on on off on off on on on off on 0
1 on on off on off on off on off on off on 1
1 2 on off on on off on off off on on off on 2
3 on off off on off on off off off on off on 3
5
0 0 0 0 0 on on on on off off off on on on off off 0
1 on on off on off off off on off on off off 1
1 2 on off on on off off off off on on off off 2
3 on off off on off off off off off on off off 3
6*
0 0 0 0 0 on on on off on on off on on off on on 0
1 on on off off on on off on off off on on 1
1 2 on off on off on on off off on off on on 2
3** on off off off on on off off off off on on 3
7*
0 0 0 0 on on on off on off off on on off on off 0
1 on on off off on off off on off off on off 1
1 2 on off on off on off off off on off on off 2
3** on off off off on off off off off off on off 3
MBM set to offset 0 MBM set to offset 1 MBM set to offset 2 MBM set to offset 3
Each shaded square represents the amount of the DS30 bus, and the offset, which the MBM requires.
* If your system is configured with a 3/5 DS30 split, DS30 7 is not available to MBMs.
** ASM MBMs always use the single density DIP switch settings, with the appropriate offset.