NEC Aspire Product Description page 29

IP Interface Cards
4 CH VoIP Media Gateway (4VOIPU) — P/N 0891042
The 4VoIP PCB is used for converting the RTP (Real Time Transfer Protocol) 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 4VOIPU 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 4VOIPU PCB provides:
A maximum of 6 PCBs per system are allowed, providing 24 channels (with the daughter board, 48
channels) and it can be plugged into any universal slot.
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.
4 CH VoIP Media Gateway Expansion Daughter Board
(4VOIPDB) — P/N 0891043
The VOIPDB daughter board provides:
The VOIPDB is installed on the 4VOIPU PCB with a maximum of 6 daughter boards per system,
providing 48 channels (when combining the 4VOIPU and VOIPDB).
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:
Product Description
4VOIPU PCB provides up to 4 channels
Connector for the VOIPDB daughter board (providing an additional 4 channels)
1 PCB status LED
1 run/block switch
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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