
Chapter 7: Specifications
Networking Specifications
Networking Specifications
Ethernet Latency Specifications
Latency – 28 MHz Channel Bandwidth
Table 55 Latency for 28MHz Channel Bandwidth
ACM
Working
Point
Modulation
Latency (usec) with GE Interface
Frame Size 64
128
256
512
1024
1518
0
QPSK
144
156
183
236
343
446
1
8 PSK
113
122
142
179
256
330
2
16 QAM
98
105
120
148
206
261
3
32 QAM
94
100
112
135
181
225
4
64 QAM
90
95
106
125
165
203
5
128 QAM
84
89
98
115
149
183
6
256 QAM
92
95
104
119
151
181
7
512 QAM
99
103
111
125
155
184
8
1024 QAM
(strong FEC)
92
95
103
117
145
173
9
1024 QAM
(light FEC)
93
96
104
117
145
171
10
2048 QAM
88
91
99
111
137
162
Latency – 30 MHz Channel Bandwidth
Table 56 Latency for 30MHz Channel Bandwidth
ACM
Working
Point
Modulation
Latency (usec) with GE Interface
Frame Size 64
128
256
512
1024
1518
0
QPSK
144
156
183
236
343
446
1
8 PSK
113
122
142
179
256
330
2
16 QAM
98
105
120
148
206
261
3
32 QAM
94
100
112
135
181
225
Page 7-34