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Telephony Device Installation Guide
Chapter 3
Installing an analog station media bay module
You can connect a a maximum of eight analog telecommunication devices to the analog station
media bay modules (ASM8, ASM8+, and GASM). These devices are standard analog telephones,
cordless telephones, fax machines, answering machines, or modems. The maximum speed for a
modem connection is 28.8 kbit/s.
The ASM8 is available in North America only; the ASM8+ and GASM8 are available in North
America, the United Kingdom, Australia, and Poland.
In addition to ASM8 features, the ASM8+ and GASM offer the following features:
•
Visual Message Waiting Indicator (VMWI)—LED indicates to the end user that a message is
waiting
•
disconnect supervision (Open Switch Interval [OSI] according to EIA/TIA 464)—indicates to
the attached device, in an established communication, that the connected device must release
the call
•
caller ID—provides the name, phone number, and other information about the caller to the end
user at the start of the call
•
firmware downloading capability—allows the system to upgrade the ASM8+ and GASM
firmware at customer sites
•
enhanced ringing capability—ASM8+ and GASM provide a ringing voltage of two REN/65 V
rms per port.
•
GASM8—designated as an on-premise station (OPS) port
The ASM8, ASM8+, and GASM each have one RJ-21 connector on the faceplate.
shows the GASM faceplate.
Note:
When disconnect happens from the central office (CO), the ASM8+
provides an OSI to the off-hook station of 850 ms (TIA/EIA 464 section
5.4.10.2.4; minimum is 600 ms) as a disconnect signal. If the station remains
on-hook after the disconnect signal, the ASM8+ disconnects the station equipment
from the network without returning a tone to it (TIA/EIA 464 section
5.4.10.2.5[1]). After the station equipment goes on-hook, the ASM8+ station
interface is restored to on-hook (idle).
You must ensure that the device, application, or interface card connected to an
ASM8+ station interface conform to these on-hook and off-hook conditions.
Summary of Contents for BCM50 2.0
Page 6: ...6 Contents NN40020 309 NN40020 309...
Page 18: ...18 Chapter 2 Device description NN40020 309 NN40020 309...
Page 28: ...28 Chapter 4 Installing the analog terminal adapter NN40020 309 NN40020 309...
Page 58: ...58 Chapter 7 Registering Nortel 20XX and 11XX IP telephones NN40020 309 NN40020 309...
Page 62: ...62 Chapter 8 Relocating telephones NN40020 309 NN40020 309...
Page 64: ...64 Appendix A ADID wiring chart NN40020 309 NN40020 309...
Page 70: ...70 Appendix D DTM wiring chart NN40020 309 NN40020 309...
Page 82: ...82 Appendix H GATM wiring chart NN40020 309 NN40020 309...
