Aastra AXD Installation And Maintenance Manual page 457

Ethernet
Network
Management PBX
centre
PT2*
gateway
TCP/IP
PBX
PT2 + VoIP
IP
Sets
CS1
Packet mode
X25 network
data
(Transpac or HDLC)
transmission
CP1
Packet mode
data
transmission*
Data
Asynchronous
terminals
transmission
CA1
RS232
PBX
MUM
Voice / Fax
MUM
Multiplexer
PCM channels
PC Console
Printer
Telephony & data TS
Synchronous
Bus
PCM TS Switching
System
bus
States and
Codes
Signal processing
(generation,
detection, etc.)
Voice mail
Synchronisation
.
synchronous
announcements
.
IVS
.
IVB
4 T0/S0 access on UCTS & UCTS-12:
.
4-way base station function if ADPCM16
daughterboard is equipped
(UCT2S and UCT2S-12 only)
.
Bit synchronisation
M Frame S
(UCT2S and UCT2S-12 only)
LT2 LD4/LD4N/LD4X**
LT2
PCM ISDN (T0)
LD4/LD4N/LD4X**
(E1/T1) ISDN (S0)
S0
T0
E1/T1
DECT
base
Private system stations
ISDN
(eg. PBX)
Plate 9.3 FUNCTIONAL DIAGRAM OF AN AASTRA XL, XS AND XS12
Download Music
source
/ Backup
messaging
Subscriber
server System
Bus
States and
codes
management
Clocks and
synchronisation
* function is also integrated on the UCTL, UCTS and UCTS-12 boards
** function is also integrated on the UCTS and UCTS-12 boards
PC or
printer
PBX N
BTX
PBX 3
Billing
PBX 2
buffer
LI1
Ethernet
network
IUMS
Console
Unified
LAx**
LMx
LNx**
S0
Attendant Console
LHx
Billing
server
LR4
Administration
interface
Analog sets
Digital sets
Attendant
Hotel
analog sets
Analog PSTN
network