Aastra AXD User Manual

AMT/PTD/PBX/0058/4/6/EN Installation and Maintenance Manual - Aastra 5000
Page 96 01/2011 Description et caractéristiques d’un PBX
3.8.2 Connection to the communication networks and terminals
Connection to communication networks and terminals is provided by expansion cards and
interfaces located on the EXT1-S card (AXS iPBX), and by a LAN interface only on UCV-
L (AXL iPBX) and UCV-D (AXS iPBX) cards.
These expansion cards can be divided into two categories:
• CLX cards. They interface with the external applications connected to the iPBX through
digital networks. CLX cards are smart cards (with microprocessor) with access through
the system bus to the memory area of the UCV card. This category includes:
- IP gateway cards used for interfacing with:
- IP applications: PT2 cards
- IP sets: PT2 cards fitted with a VoIP daughter card, IPS card
- cards ensuring data transmission in packet mode over an X25 network:
- CS1 cards, X25 network interface cards complying with the HDLC or PSDN
standard
- CS1 cards, X25 network interface cards complying with the ISDN standard
- cards interfacing with asynchronous data transmission terminals through RS232
links: CA1 card
- intersite voice/fax communication multiplexer cards: MUM card
- cards used to interface PCM channels with other private systems: LT2 cards
- cards interfacing with ISDN networks: LT2, LD4, LD4N and LD4X; these interfaces
also send the synchronisation clocks from a public network to the main card.
- cards for connecting with DECT base stations: LD4, LD4N and LD4X card.
• The equipment cards including the subscriber cards and interface cards with analogue
lines. Equipment cards are cards without microprocessor which do not have access to
the memory area of the UCV CPU cards. This category includes:
- cards for connecting to analogue sets: LAx cards,
- cards for connecting to digital sets: LNx cards,
- cards for connecting to analogue sets and digital sets: LMx cards,
- cards for connecting to hotel analogue sets: LH8, LH16X and LH16X-8 cards,
- the intersite link card through analogue lines: LI1 card,
- the card for connecting to PSTN analogue lines or a charging server: LR4 card.
These cards, installed in the main cabinet or an expansion cabinet (LAx and LNx cards
only) communicate with the central and processing unit of the UCV cards, through:
- a synchronous bus, the equipment bus, for conveying the voice or data information
through PCM TSs
- an asynchronous system bus, for exchanging their status and command

Aastra AXD Specifications

General

Brand	Aastra
Model	AXD
Category	Server
Language	English