Chapter 2 Introducing the Avaya BCM50 hardware 43
Installation and Maintenance Guide
Figure 15 4x16 faceplate LEDS and connectors
G4x16 and G8x16 media bay module
The G4x16 MBM is a combination of GATM4 and DSM16 MBMs, while the G8x16 is a
combination of GATM8 and DSM16 MBMs.
The figure G4x16/G8x16 faceplate LEDS and connectors on page 43 shows the G4x16/G8x16
MBM faceplate with two RJ-21 (amphenol) connectors. The upper RJ-21 (amphenol) connector
connects 16 digital telephones to the system, while the lower RJ-21 (amphenol) connector
connects 4 or 8 analog PSTN lines with pulse and tone dialing, caller ID, and disconnect
supervision in selected markets.
Figure 16 G4x16/G8x16 faceplate LEDS and connectors
Analog station media bay modules
The analog station media bay modules (ASM8, ASM8+, and GASM) can connect to a maximum
of eight analog telecommunication devices. These devices are standard analog telephones,
cordless telephones, fax machines, answering machines, or modems. The maximum speed for a
modem connection is 28.8 Kb/s.
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.
• 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: The core can upgrade the ASM8+ and GASM firmware at
customer sites.
RJ-21 (amphenol)
connector for 16 digital
telephones
RJ-21 (amphenol)
connector for 4 or 8
analog PSTN lines
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