NEC 2400 ipx Manuale Utente

Pagina di 57
NDA-24318
CHAPTER 2
Page 7
Issue 1
CIRCUIT CARD EXPLANATIONS
CHAPTER 2
CIRCUIT CARD EXPLANATIONS
1. GENERAL
This chapter provides detailed explanations for the following circuit cards:
PA-8IPTB
PZ-8VCTB
2. PA-8IPTB (IPTRK Circuit Card)
2.1 General Function
PA-8IPTB is a Line/Trunk circuit card that is used for providing CCIS/FCCS service via the Intranet, and
to send/receive voice or FAX (G3) information over IP. PA-8IPTB is equipped with a total of eight ports,
however, an optional sub board (PZ-8VCTB) provides an additional eight ports, when mounted on a PA-
8IPTB main board. For more detailed information, see Section 
. This card provides
the following functions:
a.) Voice Data Processing:
Voice data compression/decompression
FAX data encoding/multiplexing
DTMF (analog signal) detection/transmission
Echo Canceller
b.) IP Network Interface (10/100 Mbps Ethernet interface to send/receive voice/signal information)
c.) FCCS Link Interface
d.) LP-PM Bus Interface (for PM bus dedicated to NEAX2400 IPX series)
Figure 2-1   Location of PA-8IPTB (IPTRK Circuit Card) within the System
Note 1:
When using an IPTRK circuit card for CCIS Networking via IP [C-163], the IPTRK cards in the self node
and its connected node must be in 1-to-1 ratio.
Note 2:
Used for FCCS only.
Caution:
While this circuit card is in use, some LSIs may get hot. Handle this card with care. Do not touch the heated
LSI surfaces.
Ethernet Cable
Intranet
CCIS/FCCS Speech
CCIS/FCCS Signal
MUX
Et
her
net
 Cab
le
Symbols:
IPTRK:
IP Trunk
MUX:
Multiplexer
TSW:
Time Division Switch
ISAGT:
ISA Gate
LANI: LAN 
Interface
: Speech
: Signal
IPTRK
IPCON
FCON
HUB
Note 1
LANI
CPU
TSW
ISAGT
FCCS Signal
Note 2
POWER
Router