Nortel Networks 400 4.0 Manuale Utente
Chapter 8 Installing a media bay module (MBM)
117
BCM200/400 4.0 Installation and Maintenance Guide
Figure 69 How to use the configuration map
Example: Position your DSM 32 MBM (step 1), which requires two full DS30 buses (step 2), in
DS30 2 and 3 (step 3). Moving across, note that the offset is 0 (step 4). Set the DIP switches on the
MBM to match the DIP switch settings indicated for that offset (step 5).
DS30 2 and 3 (step 3). Moving across, note that the offset is 0 (step 4). Set the DIP switches on the
MBM to match the DIP switch settings indicated for that offset (step 5).
shows possible DS30 and offset configurations for each type of trunk MBM, and the
corresponding switch settings. For FEM settings, refer to
.
Table 28 Possible trunk MBM DIP switch settings (Sheet 1 of 2)
DS30
bus #
Trunk MBM positioning
DIP switch settings
Offsets
4x16
Offsets
0,1, 2, 3
Line
Exten.
DDIM
Offset
0
DTM
Offset
0
CTM
Offsets
0, 1, 2,
3
CTM8
Offsets
0, 1, 2
GATM
Offsets
0, 1, 2,
3
GATM8
Offsets
0, 1, 2
BRI
Offsets
0, 1, 2,
3
1
2
3
(offset)
4
5
6
(DS30 #)
2
0
Picks
up
ch. #3
0
Picks
up
ch. #3
0
0
0
0
0
0
on on on on on on
0
1
1
1
1
1
1
on on off on on on
1
2
2
2
2
2
2
on off on on on on
2
3
3
3
on off off on on on
3
DS30
bus #
Media bay module positioning
DIP switch setting
Off-set
4x16
ASM8/
GASM
GASM
8
DTM
CTM/
GATM
4
CTM8/
GATM
GATM
8
BRI
1
2
3
(offset)
4
5
6
(DS30 ch)
2
on on on on on on
0
7
on on on off on off
0
on on off off on off
1
on off on off on off
2
on off off off on off
3
1. Indicate the modules you want to install
2. Note how many DS30 buses each module requires
2. Note how many DS30 buses each module requires
3. Choose the DS30 numbers to
assign to the modules
assign to the modules
4. Assign an offset
number to each module
number to each module
5. Make a note of the DIP switch settings for the DS30/offset numbers
1
2
3
4
5
5
DIP switch setting for offset
2
3
4