Nortel BCM200 Installation And Maintenance Manual page 120

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Chapter 8 Installing a media bay module (MBM)
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
Station MBM positioning
DSM16+
DSM32+
DS30
Offsets 0, 1
Offsets 0, 1
bus #
SDDFDD
SDDFDD
0
0
0
2
1
0
0
3
1
0
0
0
4
1
0
0
5
1
0
0
0
6*
1
0
0
7*
1
MBM set to offset 0
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.
N0060612
N0060612
DIP switch settings
ASM 8/
GASM8
Offsets 0,
1
1, 2, 3
(offset)
0
0***
on on on on on on
1
on on off on on on
2
on off on on on on
3
on off off on on on
0
0
0
on on on on on off
1
on on off on on off
2
on off on on on off
3
on off off on on off
0
0
on on on on off on
1
on on off on off on
2
on off on on off on
3
on off off on off on
0
0
0
on on on on off off
1
on on off on off off
2
on off on on off off
3
on off off on off off
0
0
on on on off on on
1
on on off off on on
2
on off on off on on
3**
on off off off on on
0
0
on on on off on off
1
on on off off on off
2
on off on off on off
3**
on off off off on off
MBM set to offset 1
(Single density)
2
3
4
5
6
(DS30 #)
MBM set to offset 2
DIP switch settings
(Double density)
1
2
3
4
5
6
(offset)
(DS30 #)
off on on on on on
off on off on on on
off off on on on on
off off off on on on
off on on on on off
off on off on on off
off off on on on off
off off off on on off
off on on on off on
off on off on off on
off off on on off on
off off off on off on
off on on on off off
off on off on off off
off off on on off off
off off off on off off
off on on off on on
off on off off on on
off off on off on on
off off off off on on
off on on off on off
off on off off on off
off off on off on off
off off off off on off
MBM set to offset 3
Offsets
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3

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