Specifications

Plate 9.3 FUNCTIONAL DIAGRAM OF AN AASTRA XL, XS AND XS12
P
B
X
_
M
A
T
R
I
X
_
X
L
_
S
W
I
T
C
H
_
S
Y
N
O
P
_
0
1
_
0
4
LT2
(E1/T1)
PT2 + VoIP
Management
centre
PBX
PBX
Data
terminals
PT2*
gateway
TCP/IP
Packet mode
data
transmission
CS1
CP1
CA1
Multiplexer
Voice / Fax
MUM
MUM
PBX
X25 network
(Transpac or HDLC)
RS232
LT2
PCM
LD4/LD4N/LD4X**
ISDN (T0)
PC Console
LD4/LD4N/LD4X**
ISDN (S0)
LI1
Analog PSTN
network
LAx**
LMx
LNx**
LHx
LR4
Hotel
analog sets
Attendant
Billing
server
Bus
System
Signal processing
(generation,
detection, etc.)
Subscriber
server
Synchronisation
management
Clocks and
synchronisation
Telephony & data TS
Bus
Synchronous
States and
codes
States and
Codes
ISDN
Private system
(eg. PBX)
base
IP
Sets
Download
/ Backup
Printer
PBX N
PBX 3
PBX 2
PCM channels
E1/T1
T0
S0
S0
PCM TS Switching
bus
System
Music
source
Unified
messaging
IUMS
Billing
buffer
BTX
Console
interface
Administration
PC or
printer
network
Ethernet
Voice mail
.
4-way base station function if ADPCM16
.
Bit synchronisation
4 T0/S0 access on UCTS & UCTS-12:
daughterboard is equipped
(UCT2S and UCT2S-12 only)
M Frame S
.
synchronous
.
IVS
.
IVB
(UCT2S and UCT2S-12 only)
Attendant Console
stations
DECT
Asynchronous
transmission
announcements
Ethernet
Network
Packet mode
data
transmission*
Analog sets
Digital sets
* function is also integrated on the UCTL, UCTS and UCTS-12 boards
** function is also integrated on the UCTS and UCTS-12 boards
5#6,