pt7a4409 Pericom Technology Inc, pt7a4409 Datasheet - Page 12

• Manufacturer Part Number: pt7a4409
• Description: T1/e1/oc3 System Synchronizer
• Manufacturer: Pericom Technology Inc

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PT0103(12/05)
Table 6. Manual Operation Mode
Figure 7. Diagram of State Change in Manual Mode
L
L
L
L
L
R
g e
g e
g e
g e
g e
f e
M 2
M 2
M 2
M 2
M
r e
0
0
0
0
0
1
n e
n e
n e
n e
n e
S
S
S
S
S
2
o t
d
d
d
d
d
:
Notes:
(xxx): (MS2 MS1 RSEL)
IR: Invalid Reference Signal
i f
: -
: /
I T
u g
N
N
: E
GTi=1
M 1
M 1
M 1
M 1
M
: Phase re-alignment
: Phase continuity maintained without TIE Corrector
: Phase continuity maintained with TIE Corrector
e r
n I
n I
n I
n I
n I
t o
o
Primary
0
0
0
0
S
Normal
1
1
S
S
S
S
S
h c
p
p
p
p
p
6
(000)
v
a t
1
t u
t u
t u
t u
t u
l a
S1
n a
e t
o f
d i
s r
C
C
C
C
C
e g
h c
n o
n o
n o
n o
n o
a t
GTi=0
R
R
R
n a
R
R
e t
r t
r t
r t
r t
r t
S
S
S
S
S
X
e g
0
0
0
1
1
E
E
E
E
E
l o
l o
l o
l o
l o
c
L
L
L
L
L
a h
c o
IR
g n
u c
s e
s r
G i T
G i T
G i T
G i T
G
i w
o t
X
X
X
X
0
1
i T
Auto-Holdover
h t
a
d n
T
Primary
Holdover
Primary
E I
(000)
f
S1A
o r
(010)
S1H
C
m
r F
r F
r F
r F
r F
r o
A
e e
e e
e e
e e
e e
e r
S
S
S
S
t u
R -
R -
R -
/
/
-
R -
R -
0
2
t c
1
1
- o
r o
u
u
u
u
u
H
n
n
n
n
n
r i c
l o
Free-Run
o d
u c
(10X)
e v
S0
. t i
12
s r
N
N
N
N
N
S
P (
a t
r o
r o
r o
r o
r o
2
S
S
S
1
. e t
R
-
-
/
T
m
m
m
m
m
1
0
H
* Movement to Normal State from any state requires a
) I
E I
l a
l a
l a
l a
l a
Auto-Holdover
valid input signal.
Secondary
Secondary
Holdover
T1/E1/OC3 System Synchronizer
(001)
S2A
(011)
S2H
N
N
N
N
N
S
S
S (
S
S
S
S
S
r o
r o
r o
r o
r o
1
1
S
a t
a t
a t
a t
a t
S
S
E
2
/
-
T
T
m
m
m
m
m
2
0
H
e t
e t
e t
e t
e t
) C
E I
E I
l a
l a
l a
l a
l a
IR
H
H
H
H
H
S
S
o
o
o
o
o
P (
PT7A4409/4409L
S
1
2
Secondary
d l
d l
d l
d l
d l
S
S
1
Normal
R
/
-
T
T
v o
v o
v o
1
0
v o
v o
H
(001)
) I
E I
E I
S2
r e
r e
r e
r e
r e
Data Sheet
H
H
H
H
H
S
S
S
S (
o
o
o
o
o
S
1
1
2
d l
d l
d l
d l
d l
S
E
2
/
-
T
T
T
0
v o
v o
v o
v o
v o
H
) C
E I
E I
E I
r e
r e
r e
r e
r e
Ver:2