NEC Aspire Manual page 57

4 CH VoIP Media Gateway Expansion Daughter Board
(4VOIPDB) — P/N 0891043
The VOIPDB daughter board provides:
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The VOIPDB is installed on the 4VOIPU PCB with a maximum of 16 daughter boards per system,
providing 128 channels (when combining the 4VOIPU and VOIPDB). The daughter board will
consume 4 extension ports and, if available, 4 trunk ports. This PCB can be used with either the
Basic or Enhanced version of the NTCPU (P/N's 0891002 and 0891038).
16 CH VoIP Media Gateway (16VOIPU) — P/N 0891022
The 16VoIP PCB is used for converting the RTP (Real Time Transfer Pro-
tocol) packets via the IP network and PCM highway. The IP telephones
are connected directly to the IP bus. When IP phones need to be connected
to a conventional PCM-based digital circuit, this PCB converts the IP
packet signal into a PCM signal format and connects to the PCM time
division switch.
The 16VOIPU PCB is required in order for IP telephones to communicate
with non-VoIP Aspire phones, as well as to place or receive outside calls.
The 16VOIPU PCB provides:
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A maximum of 16 PCBs per system are allowed, providing 256 channels (with the daughter board,
512 channels) and it can be plugged into any universal slot. The PCB will consume 16 extension
ports and, if available, 16 trunk ports.
If a separate software hub is used (and not the 8SHUBU PCB), it should be a 100Base/full duplex
hub. To avoid network problems and to ensure good voice quality, do not use a Repeater
Hub/10Base.
Product Description
4 channels
Connector for the 4VOIPU PCB (combination provides a maximum of 8 channels per slot)
16VOIPU PCB provides up to 16 channels
Connector for the VOIPDB daughter board (providing an additional 16 channels)
1 PCB status LED
1 run/block switch
Section 2: Components
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