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CHAPTER 1 GENERAL INFORMATION
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ND-71503(E) Rev.5.0
9pch1001.fm
Card Name and Function
NOTE:
When using 4VCT card for H.323, FAX relay is not available.
EQUIPMENT
NAME
FUNCTIONAL
NAME
FUNCTION
PZ-24IPLA
24DSP
24-channel DSP Card for 8-channel IP-PAD Card
Provides Packet Assembly/Disassembly to accommodate Legacy
Line/Trunk Interface. And provides voice compression DSP con-
trol functions such as voice compression control, DTMF relay
same as IP-PAD (PN-8IPLA) card.
Used to expand the IP-PAD channel up to 32-channels.
PN-IPTB
IPT
IP Trunk Card
Provides LAN Interface, transmitting/receiving compressed voice
or signals over IP network.
Provides Auto Negotiation function (Set to ON/OFF by the switch
setting).
Used together with maximum of three 4VCT (PN-4VCTI) cards
(12-channels).
10BASE-T/100BASE-TX twisted pair cable is connected directly
to this card.
PN-4VCTI
4VCT
4-channel CODEC Card for IP Trunk Card
Provides voice compression DSP control functions such as voice
compression control, DTMF relay and FAX relay.
NOTE
• Voice compression protocols:
G.711 (64 Kbps), G.723.1 (5.3 Kbps/6.3 Kbps), G.729a
(8 Kbps)
• FAX protocol: T.30
Used together with IP Trunk (PN-IPTB) card.
Four cards can be accommodated per IP Trunk (PN-IPTB) card,
maximum 32 per system.
SEPTEMBER/15/2004
EQUIPMENT NAME AND FUNCTION
CÔNG TY VIỄN THÔNG VIỆT PRO
Chuyên phân phối tổng đài NEC
http://vietpro.com.vn