 Nortel BCM GATM4 Features
The global analog trunk media bay module (GATM4) provides an interface for four analog public switched telephone network (PSTN) lines
Supports both pulse and tone dialing, as well as caller ID and disconnect supervision in selected markets throughout the world
Compatibility
The Nortel BCM GATM4 is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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 Nortel BCM GATM8 Features
The global analog trunk media bay module (GATM4) provides an interface for eight analog public switched telephone network (PSTN) lines
Supports both pulse and tone dialing, as well as caller ID and disconnect supervision in selected markets throughout the world
Compatibility
The Nortel BCM GATM8 is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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 Nortel BCM DSM16+ Features
The Nortel BCM Digital Station Module 16 supports 16 digital telephones through one RJ-21 connector
Set the double density switch to enable the DSM to carry 16 extensions over a half DS30 bus
If required, install a second DSM16(+) and set the double density switch to occupy the second half of the DS30 bus to expand the number of extensions to 32
Compatibility
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 Nortel BCM DSM32+ Features
The Nortel BCM Digital Station Module 32+ supports 32 digital telephones through one RJ-21 connector
A DSM32(+) operating in single-density mode occupies two DS30 buses
Set the double density switch to enable the DSM to carry 32 extensions over a single DS30 bus
Compatibility
The Nortel BCM DSM32+ is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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 Nortel BCM DTM Feature
The Nortel BCM Digital Trunk Media Bay Module connects to a standard digital PSTN T1/fT1, E1/fE1, or PRI ISDN line using either a digital or PRI line
Also supports DASS2, DPN22, Q.SIG, and MCDN over ISDN
On North American BCM systems, the DTM connects a T1 or PRI circuit to the BCM system; T1 circuits provide 24 digital channels to the PSTN, while PRI circuits provide 23 digital channels to the PSTN
On International BCM systems, the DTM connects an ETSI ISDN (E1) or PRI (EI) circuit to the BCM system, providing a maximum of 30 digital channels to the PSTN
The front bezel of the DTM has an RJ-48C connector that connects the DTM to the service provider connection point
The faceplate also has a set of monitor jacks you can use to monitor the span
Compatibility
The Nortel BCM DTM is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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 Nortel BCM 4x16 Combo Features
The Nortel BCM 4x16 Combo MBM provides connections for four analog trunk lines and 16 digital telephones
Each of the four analog trunk lines support caller ID and disconnect supervision
An auxiliary port next to the Line 1 port enables you to use an analog telephony device, such as a modem, fax, or telephone, to share the trunk
Compatibility
The Nortel BCM 4x16 Combo is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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 Nortel BCM 8x16 Combo Features
The Nortel BCM 8x16 Combo MBM provides connections for eight analog trunk lines and 16 digital telephones
Each of the eight analog trunk lines support caller ID and disconnect supervision
An auxiliary port next to the Line 1 port enables you to use an analog telephony device, such as a modem, fax, or telephone, to share the trunk
Compatibility
The Nortel BCM 8x16 Combo is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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 Nortel BCM ASM8 Features
The analog station media bay module (ASM8) can connect to a maximum of eight analog telecommunication devices
Devices include standard analog telephones, cordless telephones, fax machines, answering machines, or modems (maximum speed for a modem connection is 28.8 kbit/s)
Compatibility
The Nortel BCM ASM8 is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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 Nortel BCM FEM Features
The fiber expansion media bay module (FEM) connects a maximum of six Norstar expansion units to the BCM system.
These connections provide a quick way to upgrade a Norstar system to a BCM system. The front bezel of the FEM has six connectors.
These connections are made using fiber cables between the FEM module and the Norstar expansion unit.
Compatibility
The Nortel BCM FEM is compatible with the BCM 200/400 Main Unit, BCM 400 Expansion Unit, BCM 450 Main Unit, BCM 450 Expansion Unit and BCM 50 Expansion Unit
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