Nortel BCM 3.7, Manual

Page: 140 / 1004

140 Explaining the Media Bay Modules headings
N0008589 3.3
Module types and capacities
Refer to the following table for a description of the Bus types settings.
Table 11 Programmed Bus Types
Programmed
Bus Type
Hardware unit Capacity
Available line types (some
line types are
region-dependent)
Station module • Digital Station Media Bay
Module
(DSM 16/16+ or DSM 32/
32+) Single density
• DSM16/16+ = 1 per bus/16
digital sets per module
• DSM 32/32+ = 2 buses/
32 digital sets per module
Double density
• DSM16+ = 2 per bus/
16 digital sets per module
• DSM 32+ = 1 per bus/
32 digital sets per module
N/A
• 4X16 Media Bay Module
(4X16)
(counts as one DSM 16) • 4X16 = 1 offset (trunk) and
additional bus/
16 digital sets
• Norstar station module
(SM) connected to a FEM • SM = 1 bus/16 digital sets
Analog station
module • Analog Station Media Bay
Module (ASM 8) Single density
• ASM8 = 2 per bus/8 analog
sets for each module
Double density
• ASM8 = 4 per bus/16 analog
sets for each module
N/A
• (Global) Analog Station
Media Bay Module
(GASM) Single density
• 2 per bus/8 analog sets for
each module
Double density
• 4 per bus/8 analog sets for
each module
Provides CLID passthrough,
Message Waiting Indication*
and Disconnect Supervision*
(* available features depends
on market profile)
• Norstar analog station
module (ASM) connected
to a FEM • FEM = 1 per bus/16 digital
sets N/A
Trunk module • Digital Trunk Media Bay
Module (DTM) • DTM = 1 per bus/16 lines
(max. three DTMs on a
system) • DTMs can be set to module
types: Loop, E&M, DID, T1,
PRI (NI-2 or ETSI are
region-specific)
• CLID Trunk Media Bay
Module (CTM4 or CTM8)
• Global Analog Trunk
Module (GATM4 or
GATM8) (released with
BCM version 3.5)
• CTM4/GATM4=1 per offset/
4 lines per module
• CTM8/GATM8= 2 per bus/
8 lines per module
• CTMs/GATMs can be set to
module types: Loop