
XRT73L02M
xr
TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.0.0
18
FIGURE 8. BELLCORE GR-253 CORE TRANSMIT OUTPUT PULSE TEMPLATE FOR SONET STS-1 APPLICATIONS
ST S-1 Pulse Template
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
-1
-0
.9
-0
.8
-0
.7
-0.
6
-0.
5
-0
.4
-0
.3
-0
.2
-0
.1
0
0.
1
0.
2
0.
3
0.
4
0.
5
0.
6
0.
7
0.
8
0.
9
1
1.
1
1.
2
1.
3
1.
4
Time, in UI
N
o
rm
a
liz
e
d
A
m
p
lit
u
d
e
Lower Curve
Upper Curve
TABLE 4: STS-1 PULSE MASK EQUATIONS
TIME IN UNIT INTERVALS
NORMALIZED AMPLITUDE
LOWER CURVE
-0.85
< T < -0.38
- 0.03
-0.38
< T < 0.36
0.36
< T < 1.4
- 0.03
UPPER CURVE
-0.85
< T < -0.68
0.03
-0.68
< T < 0.26
0.26
< T < 1.4
0.1 + 0.61 x e-2.4[T-0.26]
0.5 1
π
2
--- 1
T
0.18
----------
0.03
–
+
sin
+
0.5 1
π
2
--- 1
T
0.34
----------
0.03
++
sin
+