Table 1. line configuration selections, Ds261pp5 – Cirrus Logic CS61584A User Manual
Page 17
CS61584A
DS261PP5
17
DS261PP5
500
1.0
0.5
0
-0.5
0
250
750
1000
NORMALIZED
AMPLITUDE
ANSI T1.102
SPECIFICATION
CS61584A
OUTPUT
PULSE SHAPE
TIME (nanoseconds)
Figure 14. Typical Pulse Shape at DSX-1 Cross Connect
269 ns
244 ns
194 ns
219 ns
488 ns
Nominal Pulse
0
10
50
80
90
100
110
120
-10
-20
Percent of
nominal
peak
voltage
G.703
Specification
Figure 15. Mask of the Pulse at the 2048 kbps Interface
C
O
N
3
C
O
N
2
C
O
N
1
C
O
N
0
Transmit Pulse
Width at 50%
Amplitude
Transmit Pulse Shape
Receiver
Slicing
Level
Line Code
Encoder /
Decoder
0
0
0
0
244 ns (50%)
E1: square, 2.37 V into 75
Ω
50%
AMI/HDB3
1
0
0
0
244 ns (50%)
Arbitrary E1 Wave into 75
Ω
50%
AMI/HDB3
0
0
0
1
244 ns (50%)
E1: square, 2.37 V into 75
Ω
50%
AMI/HDB3
1
0
0
1
244 ns (50%)
Arbitrary E1 Wave into 120
Ω
50%
AMI/HDB3
0
0
1
0
350 ns (54%)
DSX-1: 0-133 ft.
65%
AMI/B8ZS
0
0
1
1
350 ns (54%)
DSX-1: 133-266 ft.
65%
AMI/B8ZS
0
1
0
0
350 ns (54%)
DSX-1: 266-399 ft.
65%
AMI/B8ZS
0
1
0
1
350 ns (54%)
DSX-1: 399-533 ft.
65%
AMI/B8ZS
0
1
1
0
350 ns (54%)
DSX-1: 533-655 ft.
65%
AMI/B8ZS
1
0
1
0
350 ns (54%)
Arbitrary DSX-1 Waveform
65%
AMI/B8ZS
0
1
1
1
324 ns (50%)
DS1: FCC Part 68 Option A with undershoot
65%
AMI/B8ZS
1
1
0
0
324 ns (50%)
DS1: FCC Part 68 Option A (0 dB)
65%
AMI/B8ZS
1
0
1
1
324 ns (50%)
Arbitrary DS1 Waveform
65%
AMI/B8ZS
1
1
0
1
Reserved
1
1
1
0
Transmit Hi Z
Tristate TTIP/TRING Driver Outputs
50%
AMI/HDB3
1
1
1
1
Transmit Hi Z
Tristate TTIP/TRING Driver Outputs
65%
AMI/B8ZS
Table 1. Line Configuration Selections
CS61584A
DS261F1
17