Avaya Definity SI Maintenance Manual page 46

Maintenance Architecture
ORIGINATING
DCE
DATA
DTE
MODULE
DATA
DTE
MODULE
1 RS232C DCP
2 ASCII
3-7
DTE MODEM
1 RS232C ANALOG
2 ASCII
3-7
DTE ADU
1 RS232C ADU PROT
2 ASYNCH ASCII
3-7
DATA
DTE
MODULE
1
RS232C DCP
2 ASCII
3-7
Figure 1-1. Data Transmission States
1-10 Issue 4 May 2002
SYSTEM
D
I
P
G
O
I
R
T
T
A
L
D
I
P
G
O
I
R
T
T
RAW BITS
A
L
DMI
USER DEFINED
A
N L P
A I O
L N R
O E T
G
PCM
VOICE GRADE DATA
USER DEFINED
P
E
O
I
R
A
T
RAW BITS
DMI
USER DEFINED
D
I
P
G
O
I
R
T
T
A
L
RAW BITS
DMI
USER DEFINED
DESTINATION
DCE
D
I
P
G
O
DATA
I
R
MODULE
T
T
A
L
D
I
P
DATA
G
O
MODULE
I
R
T
T
DCP RS232C
A
L
ASCII
A
P
N
O
MODEM
A
R
L
T
O
G
PCM
A
T
N P
R
A O
U MODEM
L R
N
O T
K
G
ANALOG RS232C
ASCII
P
E
ADU
O
I
R
A
T
ADU PROT RS232C
ASYNCH ASCII
P
D
O
S
R
1
T
DS1 FORMAT
DTE
MODEM
POOLING
CABLE
DTE
DTE
DS1
PORT
555-233-123