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Transmission Technology: what’s the big deal? - page 35 / 46

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35 / 46

New York

ILA

Baltimore

ILA

ILA

Philadelphia

Princeton

ILA

72

54

56

86

59

30

Dallas

Washington DC

ILA

Richmond

ILA

ILA

Raleigh

ILA

Charlotte

ILA

ILA

ILA

Atlanta

Birmingham

ILA

Huntsville

ILA

ILA

MoNLA

89

100

104

90

103

109

81

90

80

102

108

101

91

89

95

105

90

95

101

108

101

105

89

91

83

91

95

104

90

97

107

ILA

ILA

ILA

ILA

Boston

81

72

104

108

85

81

Chicago

ILA

103

109

95

85

71

111

102

96

73

99

100

110

80

71

78

98

Nashville

75

96

78

65

ILA

ILAGE

Terminal

OADM

Splice

GOADMTM

Regeneration adds cost and complexity to networks!

Example of LH system with 5-span reach:

12 regeneration sites have been added

Some systems are “short” due to city placement

Some regens are in locations that are difficult to service (MoNLA)

Provisioning express wavelengths becomes very difficult

Incremental wavelengths become very expensive

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